Publications
Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
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[chemical studies on flavonoid compounds from glycyrrhiza uralensis fisch]. | 1963 | 14132308 | |
[chemical and pharmaceutical research on flavanoids of glycyrrhiza glabra l. and glycyrrhiza uralensis fisch]. | 1964 | 14303586 | |
the core structure and immunological activities of glycyrrhizan ua, the main polysaccharide from the root of glycyrrhiza uralensis. | the controlled smith degradation and limited hydrolysis of glycyrrhizan ua, the main phagocytosis-activating polysaccharide isolated from the root of glycyrrhiza uralensis fischer, was performed. the reticuloendothelial system-potentiating, anti-complementary and alkaline phosphatase-inducing activities of glycyrrhizan ua and its degradation products were investigated. methylation analyses of primary, secondary and tertiary smith degradation products and of the limited hydrolysis product indicat ... | 1966 | 1423767 |
[studies on the cultivation of medicinal plants. i. rooting experiment of glycyrrhiza uralensis fisch et. dc. (author's transl)]. | 1973 | 4800139 | |
screening of the wormicidal chinese raw drugs on clonorchis sinensis. | the wormicidal effect on clonorchis sinensis in boiled water extracts of 223 species (vegetable origin 206, animal origin 10, mineral origin 7) of raw drugs prescribed in oriental medicine was observed in vitro. the wormicidal substances were detected from 31 of the above-mentioned species. the wormicidal substances extracted from platycodon grandiflorum (radix), schizandra chinensis (fruit), polygala tenuifolia (herb) and aster tataricus (radix) were most effective. those from smilax glabra (ra ... | 1981 | 6764091 |
[mutagenic evaluation of the chinese drug c, l, t, g pill consisting of daphne genkwa, euphorbia kansui, euphorbia pekinensis, glycyrrhiza uralensis tested in salmonella typhimurium and b. subtilis]. | 1986 | 2952328 | |
[studies on the saponins from the root of glycyrrhiza uralensis fisch]. | 1986 | 3811940 | |
[effect of covering soil on the germination rate of glycyrrhiza uralensis fischer]. | 1987 | 3446377 | |
[isolation and structure determination of new triterpene sapogenins from glycyrrhiza uralensis fisch]. | 1987 | 3450150 | |
isolation of monoamine oxidase inhibitors from glycyrrhiza uralensis roots and the structure-activity relationship. | 1987 | 3575512 | |
[a clinical study on the treatment of acute upper digestive tract hemorrhage with wen-she decoction]. | this paper deals with the prospective clinical study on treatment of acute upper digestive tract hemorrhage with wen-she decoction (wsd). an opened sequential controlled trial method of simple orientation quality reaction was adopted in this study. 7 cases were treated and all of them were cured. it was concluded that wsd was an excellent therapy to treat the middle or small amount hemorrhage of acute upper digestive tract. the effective rate of wsd of the stool ob (+) becoming (-) within 5 days ... | 1989 | 2766422 |
in vitro screening of traditional medicines for anti-hiv activity: memorandum from a who meeting. | many plant products are being used by patients with acquired immunodeficiency syndrome (aids) in some countries without any scientific proof that they possess anti-hiv (human immunodeficiency virus) activity. traditional healers are now offering their remedies for scientific evaluation, and a few studies provide information on the inhibitory activity against hiv of plants such as viola yedoensis, arctium lappa, epimedium grandiflorum, glycyrrhiza uralensis and castanospermum australe. natural pr ... | 1989 | 2633879 |
[studies on the anti-virus effect of glycyrrhiza uralensis fish. polysaccharide]. | the anti-virus activity of gps has been investigated in vitro using l-929 and fl cell line infected with 7 kinds of dna or rna virus, and the mechanism by which gps exhibits the anti-virus activity has been studied. the results show that gps may inhibit the growth of vsv, adviii, hsv-1 or vv and cpe is also suppressed by gps for protecting culture cell from virus infection. | 1989 | 2550028 |
oral baicalin and liquid extract of licorice reduce sorbitol levels in red blood cell of diabetic rats. | intracellular accumulation of sorbitol, resulting from the increased glucose flux through polyol pathway with the action of aldose reductase, has been found pathogenic to chronic diabetic complications. it has been reported that baicalin and glycyrrhiza uralensis fisch can inhibit rat lens aldose reductase in vitro. in order to determine whether the said medicinal herbs give the inhibitive effect in vivo, 10 streptozotocin induced diabetic rats were treated with baicalin 150 mg/kg.d and liquid e ... | 1989 | 2527143 |
[inhibition of aldose reductase from rat lens by some chinese herbs and their components]. | nearly 20 herbs or herbal components were screened for the inhibitory effect of rat lens aldose reductase(ar) with a fluorometric assay of ar activity. among these glycyrrhiza uralensis, salvia miltiorrhiza, radix astragali, gentiana scabra, silybin, puerarin and baicalin were found to exhibit markedly inhibitory effects on ar comparable to sorbinil. the authors suggest that some of the chinese herbs used in the control of diabetic complications may act through the pharmacologic action of inhibi ... | 1989 | 2511877 |
[the structure of glyuranolide, a new triterpene of glycyrrhiza uralensis fisch]. | using a medium pressure liquid chromatographic system, a new triterpene lactone named glyuranolide [3 beta, 22 alpha-dihydroxy-11-oxo-delta 12-oleanene-27 alpha-methoxy carbonyl-29-oic acid (29, 22 alpha-) lactone.] was isolated from the crude sapogenins of glycyrrhiza uralensis fisch. its structure was elucidated by ir, uv, fab-ms, and various nmr spectra (including noe, bbd, inept, sr, cosy, noesy etc.). | 1989 | 2609969 |
a novel neutral polysaccharide having activity on the reticuloendothelial system from the root of glycyrrhiza uralensis. | a neutral polysaccharide, named glycyrrhizan uc, was isolated from the root of glycyrrhiza uralensis fischer. it was homogeneous on electrophoresis and gel chromatography, and its molecular mass was estimated to be 69,000. glycyrrhizan uc is composed of l-arabinose:d-galactose:d-glucose:l-rhamnose in the molar ratio of 10:30 27:1. methylation analysis, carbon-13 nuclear magnetic resonance and periodate oxidation studies indicated its structural feature as an arabino-3,6-galacto-glucan type polys ... | 1990 | 2085889 |
characterization of two polysaccharides having activity on the reticuloendothelial system from the root of glycyrrhiza uralensis. | two polysaccharides, called glycyrrhizans ua and ub, were isolated from the root of glycyrrhiza uralensis fischer. they were homogeneous on electrophoresis and gel chromatography, and showed reticuloendothelial system-potentiating activity in a carbon clearance test. glycyrrhizan ua is composed of l-arabinose: d-galactose: l-rhamnose: d-galacturonic acid in the molar ratio of 20:14:1:3, and glycyrrhizan ub is composed of l-arabinose: d-galactose: d-glucose: l-rhamnose: d-galacturonic acid in the ... | 1990 | 2208379 |
stable transfer and expression of chimeric genes in licorice (glycyrrhiza uralensis) using an ri plasmid binary vector. | the pharmaceutically important plant, licorice (glycyrrhiza uralenesis fisher), was transformed with a binary vector system of an ri plasmid, pri15834, and a mini ti vector, pgsgluc1, containing chimeric neo and gus genes. the transgenic state of transformed roots was confirmed by detection of agropine and mannopine and by southern blot hybridization with t-dna of pgsgluc1. one to three copies of t-dna of pgsgluc1 was integrated into the genomic dna of g. uralensis. the expression of chimeric ne ... | 1990 | 24232925 |
[studies on flavonoid constituents isolated from the leaves of glycyrrhiza uralensis fisch]. | four flavonoids were isolated from the alcoholic extract of the leaves of glycyrrhiza uralensis fisch. (leguminosae). on the basis of physicochemical properties and spectroscopic analysis their structures were elucidated as 3,5,7,3',4'-pentahydroxy-5'-isoprenylflavone(i), 3,6,7,3',4'-pentahydroxy-2'-isoprenylflavone(ii) and 5,7,3',4'-tetrahydroxy-5'-isoprenyl-flavonone(iii) and quercetin-3,3'-dimethylether(iv). compounds i, ii and iii are new compounds and named uralenol, neouralenol and uraleni ... | 1990 | 2099590 |
[a preliminary study on the pharmacology of the compound prescription huangqin tang and its component drugs]. | results obtained from the pharmacological experiments demonstrated that the compound prescription huangqin tang and its component drugs, roots of paeonia lactiflora, scutellaria baicalensis and glycyrrhiza uralensis, and the fruit of ziziphus jujuba showed marked anti-inflammatory effect. the compound prescription and its component drugs, except the peony root, possessed significant antispastic effect. antipyretic effect of radix scutellariae, radix glycyrrhizae and huangqin tang was suggested. ... | 1990 | 2390172 |
[antimutagenicity screening of water extracts from 102 kinds of chinese medicinal herbs]. | our observation shows that out of 102 kinds of chinese medicinal herbs tested, 17 have remarkable antimutagenic effect on the mutation induced by aflatoxin b1, in ames test. among the 17 herbs glycyrrhiza uralensis, bupleurm chinense, portulaca grandiflora and cnidium monnieri have been found in other tests to be effective against mutagenesis induced by cyclophosphamide in mice. | 1990 | 2268399 |
heterogeneity and characterisation of mitogenic and anti-complementary pectic polysaccharides from the roots of glycyrrhiza uralensis fisch et d.c. | two anti-complementary polysaccharide fractions (gr-2iia and gr-2iib), isolated from the roots of glycyrrhiza uralensis fisch et d.c., each gave five anti-complementary polysaccharides (gr-2iia-1-5 and gr-2iib-1-5) on h.p.l.c.; likewise, gr-2iic gave two anti-complementary and mitogenic polysaccharides (gr-2iic-1-2a and -2iic-2) by gel filtration and h.p.l.c. gr-2iic-1-2a showed the most potent anti-complementary activity. gr-2iia-1-5 and gr-2iib-1-5 contained 40-85% and 50-90% of gala, respecti ... | 1991 | 1804531 |
[protective effect of glycyrrhiza uralensis fisch and its extracts on the chronic desensitization of beta-adrenoceptors in guinea pigs]. | histamine-induced wheezing test is conjunction with radioligand binding assay showed that after long-term administration of isoprenaline the reactivity and r, value (total receptor binding sites) of beta-adrenoceptors in the lung tissue of guinea pigs were reduced. the decoction of glycyrrhiza uralensis fisch or its extractive lx56 given intraperitoneally could prevent these changes, but the decoction per os or glycyrrhetinic acid given intraperitoneally could not. | 1991 | 1664726 |
tissue-specific and stress-enhancing expression of the tr promoter for mannopine synthase in transgenic medicinal plants. | transgenic tobacco (nicotiana tabacum l.), licorice (glycyrrhiza uralensis fisher) and foxglove (digitalis purpurea l.) were obtained with binary vector systems based on a disarmed agrobacterium tumefaciens and on a virulent a. rhizogenes. the chimeric neomycin phosphotransferase ii (npt-ii) gene (kan) and the ß-glucuronidase (gus) gene (uida) were under the control of the tr1' and 2' promoters, respectively, on a binary vector, pgsgluc1. tissue-specific expression of the chimeric tr2' -uida gen ... | 1991 | 24193927 |
[chemical studies of coumarins from glycyrrhiza uralensis fisch]. | this paper reports the isolation and identification of eight crystalline substances (i, ii, iii, iv, v, vi, vii, viii) from the root of glycyrrhiza uralensis fisch. besides the known compounds liquiritin, hexacosance, beta-sitosterol, licoricone liquiritigenin and etc, a new constituent, named neoglycyrol was obtained by sillica gel and polyamide column chromatographic method. its chemical structure was elucidated by means of chemical and spectrometric analysis (uv, ir, nmr and ms). neoglycyrol, ... | 1991 | 1950571 |
[isolation, purification and chemical structure of a glucan from glycyrrhiza uralensis fisch]. | a glucan, gbw, was isolated from the alkaline aqueous extract of glycyrrhiza uralensis fisch. its mean molecular weight was estimated to be 4 x 10(3). tlc, methylation analysis, periodate oxidation, smith degradation, partial acid hydrolysis, ki--i2 reaction, ir and 13cnmr showed that gbw is a (1----4) linked alpha-d-glucan (6). | 1991 | 1821086 |
[treatment of intestinal metaplasia and atypical hyperplasia of gastric mucosa with xiao wei yan powder]. | 138 cases of intestinal metaplasia (im) and 104 cases of atypical hyperplasia (ah) of the gastric mucosa of chronic gastritis treated with xiao wei yan powder (xwyp) were reported. the diagnoses were based on the pathological examination of gastric antrum biopsy specimens. the cases were randomly divided into treated group and control group. the xwyp contained smilax glabrae, hedyotis diffusae, taraxacum mongolicum, caesalpinia sappan, paeonia alba, cyperus rotundus, bletilla striata, glycyrrhiz ... | 1992 | 1302542 |
[antioxidative effect of chinese drugs]. | the antioxidative effect of more than 50 ethanol extracts of chinese drugs were studied on the air oxidation of linoleic acid. several ethanol extracts such as glycyrrhiza uralensis, magnolia officinalis and zingiber officinale etc., were found having stronger antioxidative effect. | 1992 | 1418587 |
[glycosides of phenolic acid and flavonoids from the leaves of glycyrrhiza uralensis ficsh]. | seven glycosidic constituents have been isolated from the dried leaves of glycyrrhiza uralensis ficsh. (leguminosae). the structures of these compounds have been identified as 1-o-protocatechuyl-beta-d-xylose (i), apigenin-6,8-di-c- beta-d-glucopyranoside (vicenin-2, ii), isorhamnetin-3-o-rutinoside (narcissin, iii) kaempferol-3-o-rutinoside (nicotiflorin, iv), kaempferol-3-o-beta-d- glucopyranoside (astragalin, v), quercetin-3-o-rutinoside (rutin, vi), and quercetin-3-o-beta- d-glucopyranoside ... | 1992 | 1442071 |
5-o-methyllicoricidin: a new and potent benzodiazepine-binding stimulator from glycyrrhiza uralensis. | 1992 | 1529035 | |
shi-quan-da-bu-tang (ten significant tonic decoction), sqt. a potent chinese biological response modifier in cancer immunotherapy, potentiation and detoxification of anticancer drugs. | shi-quan-da-bu-tang (ten significant tonic decoction), or sqt (juzentaihoto, tj-48) was formulated by taiping hui-min ju (public welfare pharmacy bureau) in chinese song dynasty in ad 1200. it is prepared by extracting a mixture of ten medical herbs (rehmannia glutinosa, paeonia lactiflora, liqusticum wallichii, angelica sinesis, glycyrrhiza uralensis, poria cocos, atractylodes macrocephala, panax ginseng. astragalus membranaceus and cinnamomum cassia) that tone the blood and vital energy, and s ... | 1992 | 1294861 |
saponin and sapogenol. xlvii. on the constituents of the roots of glycyrrhiza uralensis fischer from northeastern china. (1). licorice-saponins a3, b2, and c2. | from the air-dried root of glycyrrhiza uralensis, collected in the northeastern part of china, ten new oleanane-type triterpene oligoglycosides were isolated together with glycyrrhizin (1) and several known flavonoids. among the newly isolated triterpene oligoglycosides, the chemical structures of licorice-saponin a3 (2), licorice-saponin b2 (3), and licorice-saponin c2 (4) have been determined, on the basis of chemical and physicochemical evidence, to be expressed as 30-o-beta-d-glucopyranosylg ... | 1993 | 8448820 |
[a prospective clinical study on reversion of 200 precancerous patients with hua-sheng-ping]. | 200 precancerous patients were treated by the drug hua-sheng-ping, the process was monitored by endoscopic histo-pathologic examination, and biochemical criteria. results: the total effective rate was 95.5%, which was higher than that of control group (57%), p < 0.01. the recipe is composed of some medicinal herbs such as chrysanthemum morifolium, glycyrrhiza uralensis, panax notoginseng. it is indicated for syndromes such as spleen-stomach asthenic cold etc. and has been proved to be an effecti ... | 1993 | 8339031 |
saponin and sapogenol. l. on the constituents of the roots of glycyrrhiza uralensis fischer from xinjiang, china. chemical structures of licorice-saponin l3 and isoliquiritin apioside. | from the air-dried roots of glycyrrhiza uralensis fischer collected in xinjiang province, china ("shinkyo-kanzo" in japanese), a new oleanene-type triterpene oligoglycoside named licorice-saponin l3 and a new chalcone oligoglycoside named isoliquiritin apioside were isolated together with glycyrrhizin, 18 alpha-glycyrrhizin, apioglycyrrhizin, araboglycyrrhizin, licorice-saponins a3, e2, g2, and h2, and six known flavonoid glycosides. on the basis of chemical and physicochemical evidence, the str ... | 1993 | 8221970 |
[effect of improving memory and inhibiting acetylcholinesterase activity by invigorating-qi and warming-yang recipe]. | invigorating-qi and warming-yang (iqwy) had a good curative effect to some senile diseases such as senile dementia, senile hypomnesia etc. this experiment was designed for probing into the therapeutical mechanism of iqwy recipe. balb/c pure bred mice were divided into five groups. group i was taken per os of invigorating qi (iq), group ii warming yang (wy), group iii iqwy drugs, group iv was dysmnesia model, and group v blank control group injected with normal saline only. all groups except grou ... | 1993 | 8155947 |
saponin and sapogenol. xlviii. on the constituents of the roots of glycyrrhiza uralensis fischer from northeastern china. (2). licorice-saponins d3, e2, f3, g2, h2, j2, and k2. | following the characterization of licorice-saponins a3 (2), b2 (3), and c2 (4), the chemical structures of licorice-saponins d3 (5), e2 (6), f3 (7), g2 (8), h2 (9), j2 (10), and k2 (11), seven of the ten oleanane-type triterpene oligoglycosides isolated from the air-dried roots of glycyrrhiza uralensis fischer collected in the northeastern part of china, were investigated. on the basis of chemical and physicochemical evidence, the structures of licorice-saponins d3, e2, f3, g2, h2, j2, and k2 ha ... | 1993 | 8403082 |
[studies of the spasm-relieving effect of glycyrrhiza uralensis fisch.--aster tataricus l.f. pulvis mixture on the trachea in guinea pigs]. | the experiment shows that high concentration of aster tataricus plus glycyrrhiza uralensis fisch. can inhibit the tracheal systoliea caused by histamine, but for tracheal systoliea caused by acetylcholine the inhibition is indistinct. the experiment also shows that aster tataricus, glycyrrhiza uralensis and tussilago far fara l. combined have coordinated inhibiting effect on the tracheal systoliea caused by histamine and acetylcholine. | 1993 | 8011115 |
[two new isoprenyl flavonoids from the leaves of glycyrrhiza uralensis fisch]. | in previous papers, we reported flavonoids isolated from the leaves of glycyrrhiza uralensis on the west of inner mongolia. three of these flavonoids had the isoprenyl on the b ring, one was phenolic glucoside and six were flavonoidic glucosides. in the present paper, we report the isolation and identification of flavonoids from the leaves of this plant. the structures of these compounds have been identified as 5,7,3',4'-tetrahydroxy-3-methoxy-5'- isoprenylflavone(i),5,6,3',4'-tetrahydroxy-3-met ... | 1993 | 8328266 |
[isolation and identification of gancaonin p-3'-methylether from the leaves of glycyrrhiza uralensis fisch]. | two flavonoids were isolated from the leaves of glycyrrhiza uralensis fisch (licorice, leguminosae). on the basis of physico-chemical properties and spectroscopy (uv, 1hnmr and ms), a new compound was elucidated as 3,5,7,4'-tetrahydroxy-3'-methoxy-6-isoprenyl flavone (gancaonin p-3'-methylether) and another known compound was identified as 8-c-prenyleriodictyol. | 1993 | 8285073 |
existence of a rhamnogalacturonan ii-like region in bioactive pectins from medicinal herbs. | unusual component sugars such as 2-methylfucose (2-me-fuc), 2-methylxylose (2-me-xyl), apiose (api), and aceric acid (acea) are contained in the bioactive pectins from bupleurum falcatum, glycyrrhiza uralensis, and angelica acutiloba, but not in the other bioactive pectic heteroglycans and arabinogalactans from chinese and japanese herbs tested. each pectin was digested with endo-alpha-(1-->4)-polygalacturonase, and gave two enzyme-resistant fractions, pg-1 (rhamnogalacturonan core with neutral ... | 1994 | 7997476 |
[molecular genetics and biotechnology in medicinal plants: studies by transgenic plants]. | the advances in molecular genetics and biotechnology in the field of medicinal plant research are discussed with focusing on the works using transgenic plants. differentiated organ cultures and transgenic teratomas, incited by the infection with mutants of agrobacterium ti and ri plasmids, were established in quinolizidine-alkaloid producing plants and solanaceae plants. these cultured cells were used for the production and bioconversion of specific alkaloids produced in these plants. the method ... | 1994 | 8133455 |
[effect of xiaoyu pian on new platelet aggregation defect]. | the xiaoyu pian (xyp, mainly consisted of prunus persica, carthamus tinctorius, glycyrrhiza uralensis, etc) was used to treat patients with new platelet aggregation defect. patients were divided into 2 groups, the tcm group (72 cases) treated with xyp and the control group (65 cases) treated with vitamin c and p and/or adrenosem for at least 3 months. the results showed that marked effective rate was 87.5% in tcm group and 35.4% in control group (chi 2 = 39.7, p < 0.01); the recovery rate of pla ... | 1994 | 7719089 |
[effect of glycyrrhetinic acid on dna damage and unscheduled dna synthesis induced by benzo (a) pyrene]. | glycyrrhetinic acid (ga) is an active component of glycyrrhiza uralensis fisch. in this study, the effects of glycyrrhetinic acid on dna damage and unscheduled dna synthesis induced by benzo (alpha) pyrene were studied. mouse ear edema was visible obviously at the 6th h after topical application of single dose croton oil. a topical application of croton oil on the back of icr mice for 5 h, induced elevation of ornithine decarboxylase (odc) activity in epidermal. the administration of glycyrrheti ... | 1994 | 7871996 |
polyclonal antibody against a complement-activating pectin from the roots of angelica acutiloba. | anti-sera against a complement-activating pectin (ar-2iib), which was purified from the roots of angelica acutiloba kitagawa, were obtained by immunization of rabbits, and a polyclonal anti-ar-2iib antibody of the igg class was purified by affinity chromatography on ar-2iib-immobilized sepharose and protein g-sepharose. periodate oxidation of ar-2iib significantly reduced its inhibitory activity on the reactivity of ar-2iib to anti-ar-2iib-igg, but pronase digestion of ar-2iib did not affect its ... | 1994 | 7997470 |
[clinical study of baoyuan dahuang decoction in the treatment of chronic renal failure]. | the quality of life of 56 chronic renal failure (crf) patients using two kinds of treatment has been observed. 36 of them were taken as group a with bun 21.62 +/- 5.96 mmol/l, cr 528.63 +/- 176.3 mumol/l and hb 65 +/- 13 g/l were treated with baoyuan dahuang decoction consisted of panax ginseng, astragalus membranaceus, cassia cinnamomi, glycyrrhiza uralensis and rheum palmatum. result: six symptoms were observed, that were: fatigue, lassitude in loin and legs, aversion of cold, anorexia, sexual ... | 1994 | 7950208 |
[analytical study on drug-processing of the root of glycyrrhiza uralensis fisch. by hplc]. | this paper presents a study on the drug-processing of the root of glycyrrhiza uralensis. a hplc method for the determination of glycyrrhizic acid in glycyrrhiza uralensis and its processed products has been established. the method is simple, specific and accurate. the recovery is 99.97% and the relative standard deviation is 0.9%. | 1995 | 8679089 |
pectic polysaccharides from roots of glycyrrhiza uralensis: possible contribution of neutral oligosaccharides in the galacturonase-resistant region to anti-complementary and mitogenic activities. | digestion with endo-alpha-(1-->4)-polygalacturonase liberated the enzyme-resistant region (pg-1c) as an active site of the anti-complementary and mitogenic pectic polysaccharide (gr-2iic) from glycyrrhiza uralensis. partial acid hydrolysis of pg-1c resulted in acidic oligosaccharides, and methylation analysis and gc-ms analysis of the acidic oligosaccharides suggested that pg-1c comprised a rhamnogalacturonan core such as -->2)-rha-(1-->4)-gala-(1-->2)-rha-(1-->4)-gala-(1-->-->4)-gala-(1-->4) as ... | 1996 | 8720381 |
detection and tissue distribution of anti-ulcer pectic polysaccharides from bupleurum falcatum by polyclonal antibody. | anti-sera against the "ramified" region (pg-1) of an anti-ulcer polysaccharide (bupleuran 2iic), which was purified from the roots of bupleurum falcatum l, were obtained by immunization of rabbits, and a polyclonal anti-bupleuran 2iic/pg-1-antibody of the igg class was purified by protein g and "ramified" region (pg-1) immobilized affinity chromatographies. the antigenic specificity of anti-bupleuran 2iic/pg-1-igg was examined by a two-site sandwich elisa which was developed as an improved metho ... | 1996 | 8792667 |
[influence of huanglian used in combination with huangqin and gancao on the erythrocytic osmotic fragilitas of experimental glucose-6-phosphate dehydrogenase deficiency in rats]. | to study the influence of common combination of huanglian(coptis chinensis) on the erythrocytic osmotic fragilitas of glucose-6-phosphate dehydrogenase(g6pd) deficiency in rats. | 1998 | 11599367 |
[the effect of herbal medicine including astragalus membranaceus (fisch) bge, codonpsis pilosula and glycyrrhiza uralensis fisch on airway responsiveness]. | to study the effect of astragalus membranceus(fisch) bge, codonpsis pilosula and glycyrrhiza uralensis fisch on airway responsiveness. | 1998 | 11326953 |
activation of macrophages by crude polysaccharide fractions obtained from shoots of glycyrrhiza glabra and hairy roots of glycyrrhiza uralensis in vitro. | many plant polysaccharide fractions have been reported as immunomodulatory agents. however, sometimes the possibility of contamination with bacterial lipopolysaccharide (lps), a potent b cell mitogen and immune modulator, is discussed. in the present paper, we investigated the effects of crude polysaccharide fractions obtained from the shoot and hairy root of glycyrrhizae sp. on murine peritoneal macrophage function, in order to clarify whether plants grown under aseptic conditions produce immun ... | 1998 | 9821821 |
[peroxidase in glycyrrhiza uralensis fisch. at primary stage of sprouting]. | changes of the peroxidase in glycyrrhiza uralensis were detected by electrophoresis and spectrophotometric analysis at the primary stage of sprouting. the result shows that during the process of seed sprouting and radicle elongating, the activities of peroxidase keep increasing, some new bands being detected and some original bands enhancing. the changes take place slowly within 24 h, but become faster after 24 h. | 1998 | 11596245 |
migration behavior and separation of active components in glycyrrhiza uralensis fisch and its commercial extract by micellar electrokinetic capillary chromatography. | a micellar electrokinetic capillary chromatography (mecc) method for the separation and determination of five components, glycyrrhizic acid (ga), glycyrrhetinic acid (gta) and 3,4'-dimethoxy-5-hydroxychalone, fermononetin and isoliquiritigenin, in extracts of glycyrrhiza uralensis fisch root was developed. migration behavior of these analytes was studied by the systematic examination of the borate and sodium dodecyl sulfate (sds) concentrations in the run buffer. the optimum separation for these ... | 1999 | 10591468 |
the induction of liver microsomal cytochrome p450 by glycyrrhiza uralensis and glycyrrhetinic acid in mice. | the effect of glycyrrhiza uralensis fisch (grz) aqueous extract and one of its active principles glycyrrhetinic acid (grt) on hepatic cytochrome p450 in mice were investigated. oral administration of grz at 10 g/kg/d or grt at 50 mg/kg/d for 7 days was found to increase the p450 contents up to 4.6 fold compared with the controls. the activities of aryl hydrocarbon hydroxylase (ahh, 3.1 and 3.3 fold), aminopyrine n-demethylase (adm, 4.2 and 3.2 folds), and 7-ethoxycumarin o-deethylase (ecod, 2.8 ... | 1999 | 10442216 |
[isolation and identification of saxifragin from glycyrrhiza uralensis fisch]. | to extract flavonoid constituents from glycyrrhiza uralensis. | 1999 | 12205887 |
[a study on cultivation techniques for glycyrrhiza uralensis fisch. in daxing county area, beijing]. | to study the suitable cultivation techniques for glycyrrhiza uralensis in the sandy soil in daxing county area, the beijing. | 2000 | 12212095 |
minor flavonoids from licorice. | three minor flavonoids, licofuranocoumarin, isotrifoliol and glisoflavanone, were isolated from licorice (underground part of glycyrrhiza uralensis), and their structures with 3-arylcoumarin, coumestan and isoflavanone skeletons were respectively elucidated on the basis of spectroscopic data. | 2000 | 11140532 |
beta-glucuronidase inhibitory activity and hepatoprotective effect of 18 beta-glycyrrhetinic acid from the rhizomes of glycyrrhiza uralensis. | an inhibitor of beta-glucuronidase from the rhizomes of glycyrrhiza uralensis was isolated and its hepatoprotective activity on cci4-induced hepatotoxicity of rats was investigated. from the water-soluble extract of g. uralensis, glycyrrhizin was isolated as a potent inhibitor of beta-glucuronidase. when glycyrrhizin was orally administered, it had a hepatoprotective activity. however, when glycyrrhizin was intraperitoneally administered, it did not have a hepatoprotective activity. 18 beta-glyc ... | 2000 | 10705732 |
[apoptosis of human gastric cancer cell line mgc-803 induced by glycyrrhiza uralensis extract]. | to study the apoptosis in human gastric cancer cell mgc-803 induced by the extract of glycyrrhiza uralensis fisch. | 2000 | 11938867 |
effect of the extracts from glycyrrhiza uralensis fisch on the growth characteristics of human cell lines: anti-tumor and immune activation activities. | immune modulating activity of ethanol extracts from glycyrrhiza uralensis fisch was investigated by conserving growth characteristics of several human cell lines. all of the samples did not show severe cytotoxicity on normal human liver cell line, wrl-68, showing less than 25% inhibition of cell growth. the crude extract and its fractionized samples (f1 and f3) inhibited the growth of human hepatoma, hep3b, down to ca. 70% of normal cell growth in adding 1.0 g l(-1) of fraction f3. the result of ... | 2001 | 19002915 |
[mitochondrial permeability transition pore regulates the apoptosis in mgc-803 induced by the extract of glycyrrhiza uralensis fisch]. | in our previous studies, we have discovered that the extract of glycyrrhiza uralensis fisch (eguf) can induce obvious apoptosis in gastric cancer cell line mgc-803. here, further investigation was carried on about the time-lapse changes of mitochondria transmembrane potential, intracellular free calcium ions, dna electrophoresis, plasma membrane permeability and chromatin condensation during the apoptotic process of mgc-803 induced by eguf and the influences of mpt-specific inhibitor cyclosporin ... | 2001 | 12549101 |
[studies of the determination of glycyrrhizin acid kali salt by hplc and the pharmacokinetics]. | to find a practive and quick method determining gk concentration in blood by hplc and to study its pharmacokinetics. gk from glycyrrhiza uralensis fisch was extracted and purified. gk were administered to mice by i.v. and ig. the concentration of gk in blood at expected time was determined by hplc. the data was dealed with by 3 p 87 programe. the concentration-time curve of i.v. 0.1% gk 40 mg/kg is in accordance with tow-compartment model. t1/2 alpha = 5.128 min, t1/2 beta = 51.196 min, auc = 74 ... | 2001 | 11715198 |
prevention and management of prostate cancer using pc-spes: a scientific perspective. | complementary and alternative therapies are increasingly used in the united states by individuals diagnosed with cancer. pc-spes is a multiherb dietary supplement used by many patients with prostate cancer (cap). the wide acceptance of pc-spes for hormone-naive and end-stage cap relates to clinical trials demonstrating significant efficacy and low toxicity. although the clinical efficacy of pc-spes is highly encouraging, its scientific basis has progressed more slowly. this article describes our ... | 2002 | 12421879 |
differential regulation of activator protein 1 activity by glycyrrhizin. | glycyrrhizin, a major component of glycyrrhiza uralensis (licorice) root, is a saponin and exhibits a number of pharmacological effects, including anti-inflammation, anti-ulcer, anti-allergy, and anticarcinogenesis. activator protein i (ap-1), a nuclear transcription factor, consists of jun/fos heterodimers or jun/jun homodimers, and blocking of tumor promoter-induced ap-1 activity could inhibit induced cellular transformation. in order to elucidate the molecular mechanism of glycyrrhizin-induce ... | 2002 | 11991252 |
[kinetic model for extraction process of chinese traditional medicine]. | to present a theory bases for chinese traditional medicine extraction process. | 2002 | 12914329 |
mechanism of action of herbal supplement pc-spes: elucidation of effects of individual herbs of pc-spes on proliferation and prostate specific gene expression in androgen-dependent lncap cells. | pc-spes is a herbal mixture used by prostate cancer patients as an alternative form of treatment. since pc-spes is derived from eight individual herbs, each with distinct as well as overlapping properties, it is of interest to investigate whether a particular herb in the formulation principally accounts for the biological properties of pc-spes. we tested the ability of extracts from individual herbs, using amounts estimated to be equivalent to that present in the herbal mixture, to suppress lnca ... | 2002 | 11836572 |
antinephritis and radical scavenging activity of prenylflavonoids. | antinephritis activity of 5 prenylflavonoids similar to glabridin (1-5), isolated from morus alba, artocarpus communis, glycyrrhiza uralensis and g. inflata, was evaluated in mice with glomerular disease (masugi-nephritis). oral administrations of artonin e (2) or licochalcone a (4) for 10 days (30 mg kg(-1) day(-1)) reduced the amount of urinary protein excretion compared to nephritic mice. esr spectroscopy demonstrated that morusin (1) and licorisoflavan a (5) increased the radical intensity o ... | 2003 | 14630182 |
screening of medicinal plant extracts for antioxidant activity. | the methanol extracts of nine medicinal plants traditionally used in chinese medicine were screened for antioxidant activity versus resveratrol, which has been shown to protect cells from oxidative damage [toxicol. lett. 102 (1998) 5]. most of the plant extracts used in this study inhibited the h(2)o(2)-induced apoptosis of chinese hamster lung fibroblast (v79-4) cells. the extracts of areca catechu var. dulcissima, paeonia suffruticosa, alpinia officinarum, glycyrrhiza uralensis and cinnamomun ... | 2003 | 12738032 |
a purl mutant of sinorhizobium fredii hh103 is symbiotically defective and altered in its lipopolysaccharide. | the pleiotropic phenotype of an auxotrophic purl mutant (svq295) of sinorhizobium fredii hh103 has been investigated. svq295 forms colonies that are translucent, produce more slime and absorb less congo red than those of wild-type strain hh103. svq295 did not grow in minimal medium unless the culture was supplemented with thiamin and adenine or with thiamin and aica-riboside (5-aminoimidazole-4-carboxamide 1-beta-d-ribofuranoside), an intermediate of purine biosynthesis. bacterial cultures suppl ... | 2003 | 12855732 |
pharmaceutical evaluation of glycyrrhiza uralensis roots cultivated in eastern nei-meng-gu of china. | to clarify the feasibility of medicinal use of the cultivated glycyrrhiza resources, the equivalency between the g. uralensis roots cultivated in eastern nei-meng-gu of china and medicinal licorice (glycyrrhizae radix, gancao in chinese and kanzo in japanese) was examined. the hplc fingerprint including glycyrrhizin (gl) of the cultivated roots was similar to that of medicinal gancao, but different from that of non-medicinal xinjiang-gancao (shinkyo kanzo in japanese). similarity between the cul ... | 2003 | 12913266 |
effects of glycyrrhizin on renal functions in association with the regulation of water channels. | it is well-known that the mineralocorticoid action of glycyrrhizin, which is the major component of glycyrrhiza uralensis, is caused by a defect in the conversion of cortisol to cortisone by the inhibition of 11-beta-hydroxysteroid dehydrogenase enzyme activity. in the present study, we investigated the mechanisms of salt and water retention in the kidney of rats administered excess amounts of glycyrrhizin (200 mg/kg/day, p.o.). up-regulation of aquaporin (aqp) 2 and 3 water channels was detecte ... | 2003 | 12943171 |
a novel biflavonoid from roots of glycyrrhiza uralensis cultivated in china. | a novel biflavonoid named licobichalcone was isolated from the roots of glycyrrhiza uralensis cultivated in china, along with twelve known compounds, including five chalcones, two isoflavones, two flavanones, two flavones and one pterocarpan. their structures were respectively elucidated on the basis of chemical and spectroscopic evidence. | 2003 | 12951456 |
a licorice ethanolic extract with peroxisome proliferator-activated receptor-gamma ligand-binding activity affects diabetes in kk-ay mice, abdominal obesity in diet-induced obese c57bl mice and hypertension in spontaneously hypertensive rats. | the metabolic syndrome, including type 2 diabetes, insulin resistance, obesity/abdominal obesity, hypertension and dyslipidemia, is a major public health problem. peroxisome proliferator-activated receptor-gamma (ppar-gamma) ligands such as thiazolidinediones are effective against this syndrome. in this study, we showed that nonaqueous fractions of licorice (glycyrrhiza uralensis fisher) extracted with ethanol, ethyl acetate and acetone, but not an aqueous extract, had ppar-gamma ligand-binding ... | 2003 | 14608046 |
[study on licorice resources and their sustainable utilization in center and western area of china]. | to investigate the latest wild and cultivated licorice resource status; bring forward the licorice resource protection and sustainable utilization countermeasures in the center and western area of china. | 2003 | 15015299 |
[the investigation of the licorice resources in northeast china]. | to find out the licorice(glycyrrhiza uralensis) distribution area, resource complexion and resource reserves of northeast china, to analyze the cause of the swing of the pendulum of resources, to put forward the countermeasure of resource protection and to provide evidence for the establishment of relative statutes. | 2003 | 15139135 |
induction of apoptosis in hl-60 cells treated with medicinal herbs. | in order to develop a new apoptosis inducer, we screened 22 crude drugs for their apoptosis-inducing activity. it was found that glycyrrhiza uralensis, cynomorium songaricum, eucommia ulmoides, phellodendron amurense, cinnamomum cassia and paeonia lactiflora induced the death of hl-60 cells. to investigate the mechanism of apoptosis induced by these six crude drugs, the mitochondrial transmembrane potential and the activity of caspase-3 were measured. reduced mitochondrial transmembrane potentia ... | 2003 | 14587878 |
phenolics with ppar-gamma ligand-binding activity obtained from licorice (glycyrrhiza uralensis roots) and ameliorative effects of glycyrin on genetically diabetic kk-a(y) mice. | the etoac extract of licorice (glycyrrhiza uralensis roots) exhibited considerable ppar-gamma ligand-binding activity. bioassay-guided fractionation of the extract using a gal-4-ppar-gamma chimera assay method resulted in the isolation of two isoflavenes, one of which is a new compound named dehydroglyasperin d, an isoflavan, two 3-arylcoumarins, and an isoflavanone as the ppar-gamma ligand-binding active ingredients of licorice. the isoprenyl group at c-6 and the c-2' hydroxyl group in the arom ... | 2003 | 14643306 |
field survey of glycyrrhiza plants in central asia (2). characterization of phenolics and their variation in the leaves of glycyrrhiza plants collected in kazakhstan. | a new prenylated flavanone, licoleafol, and a new prenylated dihydrostilbene, uralstilbene, together with four known compounds, 8-dimethylallyleriodictyol, sophoraflavanone b, gancaonin r, and 6-dimethylallyleriodictyol, were isolated from the leaves of glycyrrhiza uralensis collected in kazakhstan. hplc analysis of the leaves of glycyrrhiza plants collected in kazakhstan showed that both g. uralensis-specific and glycyrrhiza glabra-specific compounds were detected in the leaves of the morpholog ... | 2003 | 14519919 |
[pharmaceutical botanical studies on some glycyrrhiza species]. | some glycyrrhiza species grown in several domestic research gardens of medicinal plants were collected by the osaka university of pharmaceutical sciences and were cultivated to compare their morphological properties. hplc profile analysis was performed and index compounds of meoh extracts of aerial parts and etoac extracts of subterranean parts were determined. glycyrrhizin contents and growth rates of the underground parts of some types of glycyrrhiza uralensis and glycyrrhiza glabra were compa ... | 2003 | 12931658 |
[the underground part growth distribution pattern of glycyrrhiza uralensis and its effects on glycyrrhizinic acid content]. | to ascertain the relationship between glycyrrhizinic acid content and the underground part growth character of glycyrrhiza uralensis and provide the theoretical evidence for wild resources protection and artificial cultivation method of g. uralensis. | 2004 | 15706863 |
[effect of drought stress on growth of glycyrrhiza uralensis]. | to study the effect of drought stress on the growth of glycyrrhiza uralensis and its drought resistance characteristic. | 2004 | 15631073 |
determination of liquiritigenin and isoliquiritigenin in glycyrrhiza uralensis and its medicinal preparations by capillary electrophoresis with electrochemical detection. | a simple, reliable, reproducible and sensitive method, based on capillary electrophoresis with electrochemical detection (ed), for the determination of liquiritigenin and isoliquiritigenin in glycyrrhiza uralensis and its medicinal preparations was described. operated in a wall-jet configuration, a 300 microm diameter carbon-disk electrode was used as the working electrode, which exhibits good responses at + 1000 mv (versus sce) for the two analytes. under the optimum conditions, the analytes we ... | 2004 | 15296407 |
characterization of antioxidant and antiglycation properties and isolation of active ingredients from traditional chinese medicines. | there is considerable interest in the isolation of more potent antioxidant compounds to treat diseases involving oxidative stress. thirty-three traditional chinese medicine (tcm) extracts were examined for their antioxidant activity using the 2,2'-azinobis[3-ethylbenzothiazoline-6-sulfonate] (abts) assay. five extracts with high activity (cratoxylum cochinchinense, cortex magnoliae officinalis, psoralea corylifolia l, curculigo orchioides gaertn, and glycyrrhiza uralensis fisch.) were selected f ... | 2004 | 15182859 |
preparative purification of glycyrrhizin extracted from the root of liquorice using high-speed counter-current chromatography. | glycyrrhizin is one of the main bioactive components in liquorice (glycyrrhiza uralensis fisch) which has recently been found to be highly active in inhibiting replication of the severe acute respiratory syndrome (sars)-associated virus. the separation and purification of glycyrrhizin from a methanol-water (70:30 (v/v)) extract of liquorice roots was achieved using high-speed counter-current chromatography. the separation was performed at a preparative scale in a one-step separation with a two-p ... | 2004 | 15072305 |
[experimental study on anti-pyretic effect of gegen qin lian decoction and its compounds]. | to investigate composition principles of gegen qin lian decoction through anti-pyretic experiment. | 2004 | 15503775 |
the antioxidative activity of traditional japanese herbs. | the objective of this research was to examine the radical scavenging activity of traditional japanese herbs. samples used in the experiments were gennoshoko (geranium nepalense var. thunbergii), yomogi (artemisia vulgaris var.indica), senburi (swertia japonica), iwa-tobacco (conandron ramondioides), sarunokoshikake (elfvingia applanata), kanzo (glycyrrhiza uralensis fisch) and matatabi (actinidia polygama). the water-soluble components of the herbs were extracted in boiling water, and the volati ... | 2004 | 15630212 |
isoliquiritigenin, a flavonoid from licorice, reduces prostaglandin e2 and nitric oxide, causes apoptosis, and suppresses aberrant crypt foci development. | isoliquiritigenin (iltg), a flavonoid group compound, exists in some foodstuffs and herbal medicines such as licorice (glycyrrhiza uralensis fisher). previously, we showed that iltg can suppress azoxymethane (aom)-induced colon carcinogenesis in ddy mice. in the present report, we present evidence that iltg markedly decreases both prostaglandin e2 (pge2) and nitric oxide (no) production in raw264.7 mouse macrophage cells. the decrease of pge2 was dependent on cyclooxygenase-2 (cox-2) expression ... | 2004 | 15132774 |
[study on optimal harvest time of semi-wild glycyrrhiza uralensis at liangwai, inner mongolia]. | to study the dynamic accumulation of glycyrrhizic acid (ga) in semi-wild glycyrrhiza uralensis fisch. so as to determine its optimal harvest time. | 2004 | 15307678 |
modulations of the bcl-2/bax family were involved in the chemopreventive effects of licorice root (glycyrrhiza uralensis fisch) in mcf-7 human breast cancer cell. | recently, cancer chemoprevention with strategies using foods and medicinal herbs has been regarded as one of the most visible fields for cancer control. genistein in soy, american ginseng, and resveratrol are well-known to have antiproliferative properties in human breast cancer. licorice root is a botanical, a shrub native to southern europe and asia, which primarily has desirable qualities in sweetening and herbal medicine. in this study, licorice (glycyrrhiza uralensis fisch) root also inhibi ... | 2004 | 15030235 |
anti-apoptotic activity of bak foong pills and its ingredients on 6-hydroxydopamine-induced neurotoxicity in pc12 cells. | bak foong pills (bfp), a traditional chinese medicine used for centuries for the enhancement of women's health, was shown to display neuro-protective activity in the 1-methyl-4-phenyl-1,2,4,6,-tetrahydro-pyridine (mptp)-induced mouse model in a previous study. in order to elucidate its mechanism of action, we investigated the anti-apoptotic properties of bak foong pills and its main ingredients, including panax ginseng, angelica sinensis, glycyrrhiza uralensis, and ligusticum chuanxiong, in the ... | 2005 | 16154779 |
spectral quality and uv-b stress stimulate glycyrrhizin concentration of glycyrrhiza uralensis in hydroponic and pot system. | glycyrrhizin, the major bioactive component of glycyrrhiza uralensis, is widely used as a natural sweetener. recently glycyrrhizin has been shown to have anti-tumor activity, highly active in inhibiting replication of hiv-1 and sars-associated virus and exhibits a number of pharmacological effects. the principle objective of the current study was to evaluate the effects of different spectral quality including red, blue, white and uv-b radiation on the production of glycyrrhizin, in a controlled ... | 2005 | 16386431 |
chemopreventive properties of the ethanol extract of chinese licorice (glycyrrhiza uralensis) root: induction of apoptosis and g1 cell cycle arrest in mcf-7 human breast cancer cells. | much of the interest on the chemopreventive properties of licorice has been focused on the plant genius glycyrrhiza glabra. in this study the ethanol extract of chinese licorice root, glycyrrhiza uralensis (g. uralensis) was investigated for its estrogenic effect and the ability to inhibit cell proliferation in the mcf-7 human breast cancer cell line. the extract of the root of g. uralensis was fractionated in etoh:h(2)o (80:20) (80% ethanol). the extract exhibited estrogenic effects similar to ... | 2005 | 16297710 |
anti-inflammatory activity of herbal medicines: inhibition of nitric oxide production and tumor necrosis factor-alpha secretion in an activated macrophage-like cell line. | houttuynia cordata thunb. (hc), glycyrrhiza uralensis fischer (gu), forsythia suspense (thunb.) vahl (fs), and lonicera japonica thunb. (lj) are chinese herbs known to possess anti-inflammatory properties. the effects of aqueous extracts of these herbs on the production of the pro-inflammatory mediators, nitric oxide (no) and tumor necrosis factor-alpha (tnf-alpha) were examined in an activated macrophage-like cell line, raw 264.7 cells. aqueous extracts from fs at 0.0625-2.0 mg/ml inhibited in ... | 2005 | 16047559 |
one step isolation and purification of liquiritigenin and isoliquiritigenin from glycyrrhiza uralensis risch. using high-speed counter-current chromatography. | high-speed counter-current chromatography (hsccc) technique in semi-preparative scale has been successfully applied to the separation of bioactive flavonoid compounds, liquiritigenin and isoliquiritigenin in one step from the crude extract of glycyrrhiza uralensis risch. the hsccc was performed using a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-acetonitrile-water (2:2:1:0.6:2, v/v). yields of liquiritigenin (98.9% purity) and isoliquiritigenin (98.3% purity) obtained we ... | 2005 | 16007997 |
comparative analysis of ten strains of glycyrrhiza uralensis cultivated in japan. | comparative analysis of 10 strains of glycyrrhiza uralensis cultivated in kyoto, japan, was undertaken to characterize their variations. based on the chemical characteristics of their leaves and underground parts, the 10 strains were divided into two chemotypes, the china type and kazakhstan type. the contents of licoleafol in the leaves of the china type (0-0.03% of dry weight) were lower than those of the kazakhstan type (0.05-1.16% of dry weight). in addition, a china type-specific unidentifi ... | 2005 | 15930758 |
[superfine comminution of glycyrrhiza uralensis roots by vibration mill]. | to discuss the mechanism of superfine comminution of traditional chinese medicine (tcm) at low temperature. | 2005 | 15719634 |
[studies on the shade-endurance capacity of glycyrrhiza uralensis]. | to study the shade-endurance property of glycyrrhiza uralensis and provide rationale for the practice of inter-cropping g. uralensis with trees. | 2005 | 15714809 |
[preliminary study on the alpha-glucosidase inhibitor from glycyrrhiza uralensis fisch]. | to extract and isolate alpha-glucosidase inhibitor from glycyrrhiza uralensis fisch. | 2005 | 16479925 |
[determination of glycyrrhizic acid in glycyrrhiza uralensis fisch by fiber optic near infrared spectroscopy]. | the objective of this study was to develop a rapid, non-destructive and real-time method for the determination of glycyrrhizic acid in glycyrrhiza uralensis fisch. near infrared spectra (nir) in the range of 10 000-4 000 cm(-1) were recorded for the glycyrrhiza uralensis fisch containing glycyrrhizic acid in the content of 0.94 %-3.06%. calibration models were established using the pls (partial least squares) and pcr (principle component regression) algorithm. different spectra pretreatments met ... | 2005 | 16379274 |