| effect of dragon fruit extract on oxidative stress and aortic stiffness in streptozotocin-induced diabetes in rats. | cardiovascular complications are consistently observed in diabetic patients across all age groups. the objective of the present study was to investigate the effect of aqueous extract of the fruit pulp of hylocereus undatus (dfe) on aortic stiffness and oxidative stress in streptozotocin (stz)-induced diabetes in rats. twenty-four male, sprague-dawley rats were randomized into four groups: i (control), ii (diabetic), iii (dfe, 250 mg/kg) and iv (dfe 500 mg/kg). diabetes was induced in groups ii, ... | 2010 | 21808536 |
| roles of diet, lifetime physical activity and oxidative dna damage in the occurrence of prostate cancer among men in klang valley, malaysia. | background: there is a paucity of information on risk factors of prostate cancer, especially those related to dietary and lifestyle among asian populations. objective: this study aimed to determine the relationship between dietary intake (macronutrients, fruits, vegetables and lycopene), lifetime physical activity and oxidative dna damage with prostate cancer. design: a case control study was carried out among 105 subjects (case n=35, control n=70), matched for age and ethnicity. data on sociode ... | 2011 | 21627352 |
| comparative antioxidant and antiproliferative activities of red and white pitayas and their correlation with flavonoid and polyphenol content. | pitaya, commonly known as dragon fruit, has generated considerable consumer interest because of its attractive color and micronutrient content. the present study investigated the total polyphenol and flavonoid content, antioxidant activity against various free radicals, and antiproliferative effect on several cancer cell lines of extracts of flesh and peel of white and red pitayas, collected from jeju island, korea. the total polyphenol and flavonoid contents of 80% methanol extracts of red pita ... | 2011 | 21535651 |
| physico-chemical and structural changes of red-fleshed dragon fruit (hylocereus polyrhizus) during fruit development. | determination of physico-chemical (weight, length, diameter, stomatal density, respiration rate, colour, soluble solids concentration, titratable acidity, chlorophyll and betacyanin content) and structural changes of red-fleshed dragon fruit (hylocereus polyrhizus (weber) britton & rose) was carried out from 5 to 35 days after pollination (dap) in order to explain their growth, development, maturations and ripening stages. | 2011 | 21031359 |
| 1-methylmalate from camu-camu (myrciaria dubia) suppressed d-galactosamine-induced liver injury in rats. | to evaluate the protective effects of fruit juices against d-galactosamine (galn)-induced liver injury, lyophilized fruit juices (total 12 kinds) were fed to rats for 7 d, and then we evoked liver injury by injecting galn. the juice of camu-camu (myrciaria dubia) significantly suppressed galn-induced liver injury when the magnitude of liver injury was assessed by plasma alanine aminotransferase and aspartate aminotransferase activities, although some other juices (acerola, dragon fruit, shekwash ... | 2010 | 20208347 |
| pseudomelanosis ilei associated with ingestion of charcoal: case report and review of literature. | melanosis or pseudomelanosis of the gastrointestinal tract refers to an accumulation of pigment deposits in the gastrointestinal mucosa. pigmentation can affect the entire gastrointestinal tract. melanosis of the colon is not uncommon, but black pigmentation of the small intestine is extremely rare. we report a case of pseudomelanosis of the terminal ileum in a 52-year-old woman who had ingested a tablespoon of charcoal powder daily for 2 years. numerous small and medium-sized irregular grayish ... | 2010 | 20078667 |
| effects of fruit extracts on the formation of acrylamide in model reactions and fried potato crisps. | natural products extracted from plants and fruits have attracted increasing attention for the development of effective inhibitors against the formation of acrylamide during food processing. in this study, six fruit extracts (apple, blueberry, mangosteen, longan, dragon fruit with white flesh, and dragon fruit with red flesh) were compared for their activities against acrylamide formation in chemical models containing equal molar quantities of glucose and asparagine in distilled water (160 degree ... | 2010 | 19925016 |
| specific detection of benzimidazole resistance in colletotrichum gloeosporioides from fruit crops by pcr-rflp. | anthracnose diseases, caused by colletotrichum gloeosporioides, are a worldwide problem and are especially important in taiwan owing to the severe economic damage they cause to tropical fruits that are grown for local consumption and export. benzimidazoles are systemic fungicides widely used for controlling these diseases in taiwan. thirty-one isolates of c. gloeosporioides from mango and strawberry grown in taiwan were examined for their sensitivity to benzimidazole fungicides. the responses of ... | 2010 | 19854306 |
| anaphylactic reaction to (mixed) fruit juice containing dragon fruit. | | 2009 | 19596400 |
| gynogenesis in the vine cacti hylocereus and selenicereus (cactaceae). | gynogenesis was investigated on the allotetraploid selenicereus megalanthus and the diploid hylocereus polyrhizus and hylocereus undatus vine cactus species. unpollinated ovules from developing flower buds containing microspores at middle uninucleate developmental stage were cultured on ms basal medium containing 2,4-d/tdz with different sucrose concentrations. ovule size increased under dark culture conditions in all the three species and the level of response was species and sucrose concentrat ... | 2009 | 19266203 |
| study of optimal temperature, ph and stability of dragon fruit (hylocereus polyrhizus) peel for use as potential natural colorant. | the peel of hylocereus polyrhizus is often regarded as a waste hence this study was aimed at exploring the feasibility of using the peel as a natural colorant using simple water extraction method. samples were subjected to a series of temperatures: room temperature (rt), 50, 80 and 100 degrees c; varied length of heating time from 1, 2, 3, 4, 5 and 10 min and a varied range of ph using 1 m of citric acid solution. the best condition to obtain highest betacyanin content was heating samples at 100 ... | 2008 | 19137837 |
| antioxidative and antiinflammatory potential of different functional drink concepts in vitro. | the present study was undertaken to investigate the antioxidative effects of three different functional drink concepts especially designed to improve the body's performance and function and to possess high antioxidant activities. the concepts based on the mixture of various plant ingredients were: (1) eq - equalize your nutrient balance, brain line [acerola-dragon fruit], (2) eq - equalize your nutrient balance, beauty line [honey-pepper] and (3) let's get red [intense]. by using a cell-based te ... | 2009 | 18979495 |
| total antioxidant activity and fiber content of select florida-grown tropical fruits. | fourteen tropical fruits from south florida (red guava, white guava, carambola, red pitaya (red dragon), white pitaya (white dragon), mamey sapote, sapodilla, lychee, longan, green mango, ripe mango, green papaya, and ripe papaya) were evaluated for antioxidant activity, total soluble phenolics (tsp), total ascorbic acid (taa), total dietary fiber (tdf), and pectin. orac (oxygen radical absorbance capacity) and dpph (1,1-diphenyl-2-picrylhydrazyl, radical scavenging activity) assays were used to ... | 2006 | 16968105 |
| determination of free amino compounds in betalainic fruits and vegetables by gas chromatography with flame ionization and mass spectrometric detection. | amino acids and amines are the precursors of betalains. therefore, the profiles of free amino compounds in juices obtained from cactus pears [opuntia ficus-indica (l.) mill. cv. bianca, cv. gialla, and cv. rossa], pitaya fruits [selenicereus megalanthus (k. schumann ex vaupel) moran, hylocereus polyrhizus (weber) britton & rose, and hylocereus undatus (haworth) britton & rose], and in extracts from differently colored swiss chard [beta vulgaris l. ssp. cicla (l.) alef. cv. bright lights] petiole ... | 2006 | 16756361 |
| parenchyma-chlorenchyma water movement during drought for the hemiepiphytic cactus hylocereus undatus. | hylocereus undatus, a hemiepiphytic cactus cultivated in 20 countries for its fruit, has fleshy stems whose water storage is crucial for surviving drought. inter-tissue water transfer during drought was therefore analysed based on cell volumes and water potential components. | 2006 | 16390846 |
| wound healing properties of hylocereus undatus on diabetic rats. | aqueous extracts of leaves, rind, fruit pulp and flowers of hylocereus undatus were studied for their wound healing properties. wound healing effects were studied on incision (skin breaking strength), excision (percent wound contraction) and the nature of wound granulation tissues, which were removed on day 7 and the collagen, hexosamine, total proteins and dna contents were determined, in addition to the rates of wound contraction and the period of epithelialization. in streptozotocin diabetic ... | 2005 | 16177967 |
| [determination of eight trace elements in the flowers of hylocereus undatus by faas]. | the effects of different sample digestives for the flowers of hylocereus undatus are compared. eight trace elements in the flowers of hylocereus undatus were determined by flame atomic absorption spectrophotometer. the result shows that the rsd and recovery are better if the flowers of hylocereus undatus was digested with hno3-hclo4 (5:1) mixed acid, and the flowers of hylocereus undatus contains many essential elements among which the contents of fe, mn and zn are higher than those of ni and cu ... | 2005 | 15852881 |
| phytate and fiber content in thai fruits commonly consumed by diabetic patients. | the amount of phytate and total dietary fiber of 6 popular tropical fruits eaten by diabetic patient residing in bangkok were studied. they were dragon fruit, durian, guava, longan, mango, and pineapple. fruit containing the highest content of total dietary fiber was guava which had about 2.7%. longan contained the lowest fiber content equal to 0.19%. the highest content of phytate was found in pineapple about 0.09% and the lowest content was in longan about 0.037%. it was noticed that longan co ... | 2004 | 15822538 |
| [sexual compatibility between two types of hylocerus (cactaceae)]. | there are two types of pitahaya that are cultivated in yucatan peninsula of mexico. they differ mainly in the skin color of the fruit, one of them has a red skin (uqroo1), while the other has a light yellow skin (uqroo2) both belong to hylocereus undatus (haworth) britt. & rose. the yellow skin pitahaya is the sweetest. the studies were conducted using the methods of self pollination and cross pollination, with direct crosses and reciprocal pollination in order to evaluate the effect related to ... | 2003 | 15162776 |
| potent inhibition by star fruit of human cytochrome p450 3a (cyp3a) activity. | there has been very limited information on the capacities of tropical fruits to inhibit human cytochrome p450 3a (cyp3a) activity. thus, the inhibitory effects of tropical fruits on midazolam 1'-hydroxylase activity of cyp3a in human liver microsomes were evaluated. eight tropical fruits such as common papaw, dragon fruit, kiwi fruit, mango, passion fruit, pomegranate, rambutan, and star fruit were tested. we also examined the inhibition of cyp3a activity by grapefruit (white) and valencia orang ... | 2004 | 15155547 |
| complete nucleotide sequence and genome organization of a cactus virus x strain from hylocereus undatus (cactaceae). | the complete nucleotide sequence of a strain of cactus virus x (cvx-hu) isolated from hylocereus undatus (cactaceae) has been determined. excluding the poly(a) tail, the sequence is 6614 nucleotides in length and contains seven open reading frames (orfs). the genome organization of cvx is similar to that of other potexviruses. orf1 encodes the putative viral replicase with conserved methyltransferase, helicase, and polymerase motifs. within orf1, two other orfs were located separately in the +2 ... | 2004 | 15098117 |
| cytology and mating systems in the climbing cacti hylocereus and selenicereus. | chromosome numbers and meiotic behavior are reported for the climbing cacti species hylocereus: undatus, hylocereus: polyrhizus, and selenicereus megalanthus. the hylocereus: spp. are diploid (2n = 22), while s. megalanthus is a tetraploid (2n = 44). irregular chromosome disjunction at anaphase i in pollen mother cells of s. megalanthus is probably the major cause of its reduced pollen viability and may contribute to low seed set, low number of viable seeds and, consequently, low fruit mass. a p ... | 2000 | 10898783 |
| [Studies on the flavonoids from the flowers of Hylocereus undatus]. | To study the chemical constituents of the flowers of Hylocereus undatus. | 2011 | 21954556 |
| three new glycosides from hylocereus undatus. | three new glycosides, undatusides a-c (1-3), and 11 known compounds (4-14) were isolated from the flowers of hylocereus undatus. their structures were elucidated on the basis of spectroscopic data and chemical method. | 2011 | 21751841 |
| metaxenia in the vine cacti hylocereus polyrhizus and selenicereus spp. | flowers of the vine cacti of the genera hylocereus and selenicereus grown in israel must be hand pollinated due to self-incompatibility and lack of efficient pollinators. in controlled pollination experiments, it was found that the time elapsed between pollination and ripening depends on the source of the pollen. therefore a study was made of some effects of the pollen source on fruit development. | 2004 | 15023705 |
| isolation and characterization of a catalase gene "hucat3" from pitaya (hylocereus undatus) and its expression under abiotic stress. | abiotic stresses usually cause h2o2 accumulation, with harmful effects, in plants. catalase may play a key protective role in plant cells by detoxifying this excess h2o2. pitaya (hylocereus undatus) shows broad ecological adaptation due to its high tolerance to abiotic stresses, e.g. drought, heat and poor soil. however, involvement of the pitaya catalase gene (hucat) in tolerance to abiotic stresses is unknown. in the present study, a full-length hucat3 cdna (1870 bp) was isolated from pitaya b ... | 2015 | 25752288 |
| comparison of the formation of nicotinic acid conjugates in leaves of different plant species. | there are three metabolic fates of nicotinic acid in plants: (1) nicotinic acid mononucleotide formation for nad synthesis by the so-called salvage pathway of pyridine nucleotide biosynthesis; (2) nicotinic acid n-glucoside formation; and (3) trigonelline (n-methylnicotinic acid) formation. in the present study, the metabolism of [carbonyl-(14)c]nicotinamide was investigated in leaves of 23 wild plant species. all species readily converted nicotinamide to nicotinic acid, and only a fraction of n ... | 2012 | 22983143 |