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date palm tree (phoenix dactylifera l.): natural products and therapeutic options.many plants, including some of the commonly consumed herbs and spices in our daily food, can be safely and effectively used to prevent and/or treat some health concerns. for example, caffeine the active ingredient found in coffee beans (coffea), shows biological activity in the treatment of the central nervous system (cns) disorders, indole-3-carbinol, and 3,3'-diindolylmethane are both broccoli (brassica oleracea) derived phytochemicals with potential anti-cancer activity, and resveratrol, isol ...028588600
monitoring and mass-trapping methodologies using pheromones: the lesser date moth batrachedra amydraula.the lesser date moth (ldm) batrachedra amydraula is a significant pest of date palm fruits. previously, detection and monitoring of the pest was inaccurate due to high costs of sampling with lifting machines. we report a practical system for detection and monitoring of ldm based on pheromone traps and relevant models. dose-response experiments with ldm pheromone traps indicated a 1 mg lure is optimal for monitoring. delta traps with adhesive covering their entire inner surface gave the highest c ...028490389
a survey on chemical constituents and indications of aromatic waters soft drinks (hydrosols) used in persian nutrition culture and folk medicine for neurological disorders and mental health.in persian nutrition culture, drinking aromatic waters (hydrosols, distillate) has a long history as functional beverages or therapeutic remedies. the co-distilled water with essential oils, which contains partial amounts of more water-soluble volatile compounds are diluted and used as beverages. since the solubility of volatile components is different in water, the overall composition, and thus the biological activities of aromatic waters seem to be different from the essential oils they were c ...028633539
green biosynthesis of spherical silver nanoparticles by using date palm (phoenix dactylifera) fruit extract and study of their antibacterial and catalytic activities.in this work, we have synthesized spherical silver nanoparticles (ag nps) by a low-cost, rapid, simple and ecofriendly approach using date palm fruit extract as a novel natural reducing and stabilizing agent. the product was characterized by uv-visible spectroscopy, x-ray diffraction (xrd), fourier transform infrared spectroscopy (ftir), field emission scanning electron microscopy (fesem), transmission electron microscopy (tem), atomic force microscopy (afm), energy-dispersive x-ray (edx) spectr ...028380222
impacts of human-related practices on ommatissus lybicus infestations of date palm in oman.date palm cultivation is economically important in the sultanate of oman, with significant financial investments coming from both the government and private individuals. however, a widespread dubas bug (db) (ommatissus lybicus bergevin) infestation has impacted regions including the middle east, north africa, southeast russia, and spain, resulting in widespread damages to date palms. in this study, techniques in spatial statistics including ordinary least squares (ols), geographically weighted r ...028166300
extraction, partial purification and characterization of amylase from parthenocarpic date (phoenix dactylifera): effect on cake quality.phoenix dactylifera l. plays an important role in social, economic and ecological tunisian sectors. some date palms produce parthenocarpic fruit named sish. the objective of the present study was to extract biomolecules from parthenocarpic fruit by producing value-added products from the fruits.028070892
date fruits-assisted synthesis and biocompatibility assessment of nickel oxide nanoparticles anchored onto graphene sheets for biomedical applications.nanographene- and graphene-based nanohybrids have garnered attention in the biomedical community owing to their biocompatibility, excellent aqueous processability, ease of cellular uptake, facile surface functionalization, and thermal and electrical conductivities. nio nanoparticle-graphene nanohybrid (g-nio) was synthesized by first depositing ni(oh)2 onto the surface of graphene oxide (go) sheets. the ni(oh)2-go hybrids were then reduced to g-nio using date palm syrup at 85 °c. the prepared g- ...027778152
beneficial effects of date palm fruits on neurodegenerative diseases. 027630684
qualitative and quantitative spectro-chemical analysis of dates using uv-pulsed laser induced breakdown spectroscopy and inductively coupled plasma mass spectrometry.laser induced breakdown spectroscopy (libs) is demonstrated for the spectral analysis of nutritional and toxic elements present in several varieties of date fruit samples available in the saudi arabia market. the method analyzes the optical emission of a test sample when subjected to pulsed laser ablation. in this demonstration, our primary focus is on calcium (ca) and magnesium (mg), as nutritional elements, and on chromium (cr), as a toxic element. the local thermodynamic equilibrium (lte) con ...027216665
anti hyperlipidemic and hepatoprotective effects of native date fruit variety "aseel" (phoenix dactylifera).diet rich in saturated fats and sugars have been associated with obesity, insulin resistance, hyperlipidemia and fatty liver disease. especially high serum lipid levels are directly connected to the progression of cardiovascular disorders, which are the leading cause of death all over the world. date palm fruit (phoenix dactylifera) is known for numerous health benefits however little information is available about in vivo clinical and preclinical benefits, hence antihyperlipidemic and hepatopro ...028375109
a date-palm scale insect. 189917757889
an oestrogenic substance in palm pollan grains of the date palm (dactylifera palmae l). 194720253960
an oestrogenic substance in pollen-grains of date palm tree phoenix dactylifera l., palmae. 194720342044
a note on the micro-organisms present in date-palm juice (sendhi). 194918141612
general composition and vitamin content of the pollen grain of the date palm, dactylifera palmae l. 195015415872
isolation of a vasodilator alkaloidal glucoside from the pollen grain of the date palm. 195212991292
isolation of rutin from the pollen grain of the date palm (dactylifera palma l.). 195212997166
isolation of a vasodilator alkaloidal glucoside from the pollen grain of the date palm. 195214946795
the gonadotrophic activity of date palm pollen grains. 195713473825
the gonad stimulating potency of date palm pollen grains. 195813537883
gonadotrophic hormones in pollen grains of the date palm. 196013849696
the hemicellulose of pollen grains of phoenix dactylifera. 19724370469
a phytochemical study of date palm pollen. 1976948517
[the palmier date palm and fusarium infection. ii. report on the stereochemistry of monosaccharides and their various derivatives and the growth of fusarium oxysporum f.sp. albedinis (killian et maire) gordon].fusarium oxysporum albedinis was grown in the presence of 20 different sugars or their derivatives. the results obtained were correlated with the stereochemical structure of the main oses. osmotic phenomena as well as active and selective transport were used to explain differences in utilization of oses of very near structure. based on the affinity of the fungus for mannose, a hypothesis is formulated concerning the fungus action in the host.19761276994
intraocular foreign body (date palm leaf). 19807216366
[date palm and fusariosis. viii.--parasitism of "fusarium oxysporum" f. sp. "albedinis" by an actinomycete (author's transl)].fortuitous growth of an actinomycete on fusarium oxysporum f. sp. albedinis culture has shown a host-parasite process. as a response to the actinomycete, the fungus produces thallospores with various forms which can germinate faster than the non-parasited f. o. albedinis microconidies. however, the strains obtained from thallospores showed as sensible as the mother strain towards actinomycete action.19817294610
effects of cryogenic treatment on plantlet production from frozen and unfrozen date palm callus.embryogenic date palm (phoenix dactylifera l. var. medjool) callus cultures were treated with a cryoprotective mixture of polyethylene glycol (carbowax 6000), glucose, and dimethylsulfoxide (10%/8%/10%, w/v); treated with the mixture, frozen to -196 degrees c, and then thawed; or left untreated. growth subsequent to treatment was measured as fresh weight increase and as the number of embryos produced during 18 weeks of culture. the growth of calli that were frozen and thawed, compared to the oth ...198216662261
allelopathic effects ofcitrus aurantium l. : i. vegetational patterning.field observations on undisturbed stands of sour orange revealed thatcynodon dactylon, chenopodium album, avena sativa, andamaranthus retroflexus were not able to grow normally and complete their life cycles under its canopies, although the same species grow well under adjacent trees of date palm. investigations revealed that the failure of the test species to grow normally under sour orange was not due to competition for light, moisture and minerals or to differences in soil texture or ph. soil ...198524311244
isolation of pathogenic bacillus circulans from callus cultures and healthy offshoots of date palm (phoenix dactylifera l.).pure cultures of a gram-negative, rod-shaped bacterium, which produced endospores after 3 to 5 days on solid medium, were isolated exclusively from tissue cultures of the date palm phoenix dactylifera l. electron microscopic examination of thin sections of the bacteria revealed the bilayer membrane typical of gramnegative bacteria and confirmed the nature of the spores as true endospores. biochemical and physiological tests indicated that the bacteria were bacillus circulans. b. circulans was co ...198616347217
freeze-fracture observations on membranes of dry and hydrated pollen from collomia, phoenix and zea.pollen from collomia grandiflora dougl. ex lindl., phoenix dactylifera l. and zea mays l. was examined by freeze-fracture electron microscopy. particular attention was paid to the organization of the cell membranes in the naturally dehydrated, as compared to the fully hydrated, state. all membranes examined had a normal bilayer organization similar to that seen in the hydrated cells of these and other plants. this organization of dry pollen membranes is discussed as it relates to physiological s ...198624232136
identification of phosphate granules occurring in seedling tissue of two palm species (phoenix dactylifera and washingtonia filifera).haustoria of two palm species, phoenix dactylifera l. (date) and washingtonia filifera (lindl.) wendl were carefully dissected from seeds, and the ultrastructural characteristics of the large, electron-opaque granules present in the cells of this tissue were compared using standard aldehyde and oso4 fixations. in washingtonia, the granules were smaller than those in date and were more variable in size and presence of non-opaque inclusions. all granules appeared to be membrane bounded although th ...198624240299
ankle extensor tendon synovitis due to a date palm thorn.palm thorn injury to tendons and joints is characterized in most patients by an acute inflammatory stage followed by a relatively asymptomatic period and finally by chronic synovitis or tenosynovitis. once the inflammatory process has begun, detection and localization of the thorn can be very difficult. we present an unusual case of palm thorn tenosynovitis of the ankle extensor tendon which was detected and localized preoperatively by ultrasound. removal of the thorn and synovectomy were curati ...19892693286
date palm thorn synovitis.we have reviewed seven cases of synovitis caused by date palm thorns, six involving the knee and one the ankle. five were satisfactorily treated by thorough irrigation of the joint with normal saline, but two required arthrotomy and synovectomy. all made a full recovery.19902341459
identification and immunocytochemical localization of α-galactosidase in resting and germinated date palm (phoenix dactylifera l.) seeds.α-galactosidases (ec 3.2.1.22) from resting and germinated date (phoenix dactylifera l.) seeds were compared and localized using immunocytochemical methods. the enzyme was present in both the endosperm and embryo of resting seeds, in the endosperm undergoing digestion where the greatest specific activity was present, and in the haustorium of seedlings. the enzyme had a molecular mass of 140000 as determined by gel filtration and a ph optimum of 4.5. at least seven forms of the enzyme with isoele ...199024196674
date palm thorn injury--an animal model. 19902179163
characterization of antigens and allergens of date palm (pheonix dactylifera) pollen. immunologic assessment of atopic patients by whole extract and its fractions [corrected].antigenic and allergenic components of date palm (phoenix dactylifera) pollen were investigated to observe their effects on the skin test reactivity, lymphocyte blastogenesis and cytokine production in atopic and healthy individuals. date pollen extracts were fractionated using sds-page and sephacryl s-200 gel filtration. western blotting of sds-page separated components with antiserum raised against whole pollen extract in rabbits revealed at least 22 immunoreactive bands ranging in molecular w ...19921485659
somatic embryogenesis from shoot tip and immature inflorescence of phoenix dactylifera cv. barhee.a method of clonal propagation via somatic embryogenesis of date palm, cultivar barhee, which has potential for large scale commercial application as well as for developmental studies on embryos is described. cultures were initiated from shoot tip and immature inflorescence explants, both of which were capable of development into embryogenic callus. when the embryogenic callus was cultured in liquid suspension on a rotary shaker, hundreds of embryos developed from milligram quantities of callus ...199224201724
ticks (acari: ixodidae) infesting the arabian camel (camelus dromedarius) in the sinai, egypt with a note on the acaricidal efficacy of ivermectin.in this study, tick burdens on camels (camelus dromedarius) were determined in the vicinity of the st. catherine monastery, sinai, egypt. in total 2,545 ticks (1,491 adults and 1,054 nymphs) were collected and identified. mean tick burdens were relatively heavy and the range in number of ticks per camel was very broad (6-173). hyalomma dromedarii was the predominant tick species and accounted for 95.6% of the adult ticks. other ticks found were h. marginatum subspp. and h. anatolicum excavatum. ...19937628237
major allergens of date palm (phoenix dactylifera l.) pollen. identification of ige-binding components by elisa and immunoblot analysis.the ige-binding components of date palm (phoenix dactylifera l.) pollen were determined by elisa and western blotting in atopic patients in order to identify its major allergens. from a pool of previously identified allergenic fractions and sera from 15 skin-test-positive, atopic subjects, four components of 12, 14.4, 57, and 65-67 kda were found to bind ige in 80-93% of sera. two other components of molecular masses 28-30 and 37-40 kda also bound 60-80% of atopic sera. the immunologic specifici ...19938238810
[allergic responses to date palm and pecan pollen in israel].date palm (phoenix dactylifera) and pecan (carya illinoensis) trees are commonly planted in israel for fruit, for shade, or as ornamental plants. pollen grains of both species are allergenic; however, the extent of exposure to such pollen and the incidence of allergic response have not been studied here. we therefore investigated skin-test responses to pollen extracts of 12 varieties of palm and 9 of pecan in 705 allergic patients living in 3 cities and 19 rural settlements. sensitivity to the p ...19948194783
a case of date palm thorn-induced extra articular synovitis with rice grain bodies. 19948000755
clustering of allergenic pollen on the basis of skin responses of atopic patients by matrix analysis.the responses of 148 atopic patients to some 43 different extracts of allergenic pollen were tested by prick tests. the measure of dissimilarity was introduced and calculated for all pairs of allergens. the investigated allergens were clustered into groups, according to their unbiased greatest similarity, by a matrix-structuring method. results indicate that subgroups of allergens can be distinguished even within groups of closely related pollen allergens that were believed to be fully cross-rea ...19947825715
cultivar-specific epitopes in date palm (phoenix dactylifera l.) pollenosis. differential antigenic and allergenic properties of pollen from ten cultivars.pollen from ten staminate cultivars of the date palm (phoenix dactylifera l.) were compared for their antigenic and allergenic potentials. crude extracts from the various cultivars were tested in 6 atopic patients with confirmed allergy to date pollen in order to determine any differences or similarities in the antigenic and allergenic properties of these cultivars. results of skin prick tests, elisa, igg and ige immunoblot analyses, peripheral blood lymphocyte proliferation and concomitant inte ...19947518268
aflatoxin production on the pits (seeds) of the date palm (phoenix dactylifera l.).pits -a by-product of the utilization of date fruits, are widely used as components of animal feeds, but an incident of aflatoxicosis in camels fed rations containing date pits has caused concern in the gulf region. this present study has shown that date pits can support aflatoxin production when inoculated withaspergillus parasiticus (imi 91019b) and that variety and/or stages of maturation within a given variety can affect the final level of aflatoxin in the material. in one variety, lulu, afl ...199523606114
water loss and polyethylene glycol-mediated acclimatization of in vitro-grown seedlings of 5 cultivars of date palm (phoenix dactylifera l.) plantlets.plantlets derived from shoot-tips of seedlings from five cultivars of date palm, phoenix dactylifera l., were subjected to polyethylene glycol in liquid medium. comparisons of water loss of detached leaves among in vitro-grown, polyethylene glycol-treated and greenhouse-grown plants showed significant differences with treatment for all cultivars studied. for each treatment, significant differences were also found among cultivars. the common result was that the percent of moisture loss of non-tre ...199524185338
in vitro acclimatization of date palm (phoenix dactylifera l.) plantlets: a quantitative comparison of epicuticular leaf wax as a function of polyethylene glycol treatment.wax deposits on leaf surfaces ofin vitro-grown plantlets,in vitro plantlets treated with polyethylene glycol and greenhouse-grown seedlings from five cultivars of date palm (phoenix dactylifera l.) were extracted and quantified. significant variations among treatments and cultivars were obtained. greenhouse-grown plants had the greatest wax deposits followed by the acclimatized plantlets.in vitro plantlets had an average of 15% of the wax of greenhouse plants. cultivar and plant age differences ...199524185666
occupational rhinoconjunctivitis and bronchial asthma due to phoenix canariensis pollen allergy.we report a case of occupational bronchial asthma and rhinoconjunctivitis caused by phoenix canariensis (pc) pollen. the canary palm is a type of palm tree, belonging to the arecaceae family, which is widely distributed in frost-free regions as an ornamental tree. our patient was referred because he suffered symptoms of bronchial asthma, rhinoconjunctivitis, and contact urticaria when pruning dried leaves from pc during the pollination months. the skin prick test (spt) with a pc pollen extract w ...19957677245
optimization of semiochemical-based trapping ofmetamasius hemipterus sericeus (olivier) (coleoptera: curculionidae).response of adults of the west indian sugarcane weevil,metamasius hemipterus sericeus, to various semiochemical treatments and physical trap designs was studied in southern florida in field-grown banana and canary island date palms. ethyl acetate released alone at 860-1007 mg/day was as effective for the capture ofm. h. sericeus as a combination of ethyl acetate (844-919 mg/day), ethyl propionate (348-362 mg/day), and ethyl butyrate (117-137 mg/day) and in one trial was more effective than ferme ...199624226244
intramolecular recombination of a mitochondrial minicircular plasmid-like dna of date-palm mediated by a set of short direct-repeat sequences.a molecular clone containing the complete sequence of a mitochondrial circular plasmid-like dna (the r plasmid) isolated from the date-palm variety v3dp was used as a probe in southern analyses of mitochondrial dna prepared from other varieties. another circular structure (the s plasmid) was detected in some of these varieties, and sequenced from variety v2dp. it appears that the r plasmid could have arisen from the s plasmid by an intermolecular recombination event at a set of 26-bp imperfect s ...19968662200
the 'traveling salesman problem': a new approach for identification of differences among pollen allergens.it is not easy to identify the specific plant species that causes an allergic response in a certain patient at a certain time. this is further complicated by the fact that closely related plant species cause similar allergic responses. a novel mathematical technique is used for analysis of skin responses of a large number of patients to several groups of allergens for improvement of the understanding of their similarity or dissimilarity and their status regarding cross-reactivity.19979104793
virulence of the entomopathogenic fungus metarhizium flavoviride gams and rozsypal and toxicity of diflubenzuron, fenitrothion-esfenvalerate and profenofos-cypermethrin to nontarget arthropods in mauritania.within the framework of the gtz project, biological and integrated control of locusts and grasshoppers, a laboratory screening fo rmetarhizium flavoviride (strain mfl 5) blastospore pathogenicity to the nontarget arthropods pharoscymnus anchorago f. (coleoptera:coccinellidae), trachyderma hispida (forskâl) (coleoptera:tenebrionidae), palpares cf. tesselatus rambur (neuroptera:myrmeleontidae) and thanatus sp. (araneae: philodromidae) was conducted in akjoujt research station, mauritania. various ...19979002437
colonization pattern of aquatic hyphomycetes on leaf packs in subtropical stream.steralized leaf pieces of eight plants (eucalyptus rostrata, phoenix dactylifera, phragmites australis, musa nana, salix subserrata, cyperus alopecuroides, ricinus communis and eichhornia crassipes) were submerged in the nile stream. thirty-nine species of aquatic hyphomycetes were colonized on the plant leaves. eucalyptus was the best substratum (30 species) for colonization by aquatic hyphomycetes. phoenix (14 species), phragmites (11 species), salix (9 species), musa (8 species), ricinus and ...199716283114
fot 1 insertions in the fusarium oxysporum f. sp. albedinis genome provide diagnostic pcr targets for detection of the date palm pathogen.populations of fusarium oxysporum f. sp. albedinis, the causal agent of bayoud disease of date palm, are derivatives of a single clonal lineage and exhibit very similar fot 1 hybridization patterns. in order to develop a sensitive diagnostic tool for f. oxysporum f. sp. albedinis detection, we isolated several dna clones containing a copy of the transposable element fot 1 from a genomic library of the date palm pathogen. regions flanking the insertion sites were sequenced, and these sequences we ...19989464402
selection of a suitable method for analysis of aflatoxins in date fruits.fruits of the date palm (phoenix dactylifera l.) are a vital component of the diet in most of the arabian countries, but whether dates in the market are contaminated with aflatoxins is unknown. as screening will depend on accurate detection, the available aoac methods-with slight modification-for the recovery of aflatoxins were examined. the romer minicolumn method failed to detect any aflatoxin in contaminated date fruits. using the hplc and postcolumn derivatization procedure, the contaminants ...199810554281
synovial biopsy. a comparative study from saudi arabia and malaysia.a comparative study of synovitis in saudi arabia and malaysia was made with a view to determining any geographic variation in the incidence and pattern of the arthritides. the diagnostic spectrum in both series included pyogenic arthritis, rheumatoid arthritis, brucellar and tubercular arthritis, gout, pigmented villonodular synovitis, synovial chondromatosis and acute rheumatic fever. date-palm thorn synovitis was observed only in the saudi arabian series. while brucellar and tuberculous arthri ...19989728315
rapid detection of the fusarium oxysporum lineage containing the canary island date palm wilt pathogen.abstract fusarium oxysporum f. sp. canariensis causes fusarium wilt disease on the canary island date palm (phoenix canariensis). to facilitate disease management, a polymerase chain reaction diagnostic method has been developed to rapidly detect the pathogen. a partial genomic library of f. oxysporum f. sp. canariensis isolate 95-913 was used to identify a dna sequence diagnostic for a lineage containing all tested isolates of f. oxysporum f. sp. canariensis. two oligonucleotide primers were de ...199918944754
allergy to date fruits: characterization of antigens and allergens of fruits of the date palm (phoenix dactylifera l.).date-palm (phoenix dactylifera l.) fruits are eaten daily by most inhabitants of the middle east and the neighboring countries. recent reports have indicated that dates are allergenic. this study aimed to investigate the antigenic and allergenic potential of date fruits.199910688430
the gene distribution in the genomes of pea, tomato and date palm.the vast majority of genes of maize, rice, barley and wheat are contained in long gene-rich regions (collectively called the 'gene space') separated by long gene-empty regions. the gene space covers a narrow, 0.8-1.6%, gc range, possibly because of the presence of abundant transposons. here we report that the gene space is not an exclusive property of gramineae, because it also exists in the large genome of pea (5000 mb). moreover, the gene space is not just dependent upon genome size, since a g ...199910601654
immunostimulant activity of dry fruits and plant materials used in indian traditional medical system for mothers after child birth and invalids.products of certain plants given to mothers after child birth or to invalids were studied for immunostimulant activity using the macrophage migration index (mmi) as a parameter of macrophage activation and cell-mediated immunity and haemagglutinating antibody (ha) titres and plaque-forming cell (pfc) counts as parameters of humoral immunity. feeding of prunus amygdalus (almond(1)) and buchanania lanzan (chirronji(1)) significantly stimulated both cmi and humoral immunity in balb/c mice as eviden ...200010904150
effects of testicular status and feeding diets containing date palm by-product on the sensory attributes of omani lamb meat.the effects of testicular status and diet on the tenderness and flavour intensity of omani lamb meat were evaluated. thirty male lambs were divided into three testicular status treatments shortly after birth, entire, castrated or induced to cryptorchidism. the animals were fed a maize and soya bean meal based diet, isocalorically supplemented with either palm fronds or rhodesgrass hay. the animals were slaughtered at an average age of 161days and weight of 27.6kg. sensory evaluation of meat for ...200010924879
cultivar-specific ige-epitopes in date (phoenix dactylifera l.) fruit allergy. correlation of skin test reactivity and ige-binding properties in selecting date cultivars for allergen standardization.date fruits are allergenic and standardized extracts are required for diagnosis and therapy of this allergy. since there are several cultivars of dates, this study was carried out to assess the allergenicity of different cultivars in order to select suitable source material for standardization.200011060485
[edmond sergent (1876-1969) and the pasteur institute of algeria].edmond sergent, supported by a distinguished team of colleagues, directed the pasteur institute of algeria for over 60 years, from 1900 to 1963. as a student of emile roux, sergent had received a pasteurian training. his institute devoted extensive study to malaria. sergent defined the concept of prevention and extended it to other pathologies. for many years, the institute persevered in carrying out successful antimalarial campaigns such that algeria was freed of the disease. in 1916-1917, serg ...200011775326
assortment of the plants in the medieval diet in czech countries (based on archaeobotanical finds).the finds of remains of useful plants in archaeological objects were drawing attention already in the last century. however, it was not until after the world war ii, in relation with renovation of historical cores of the towns, when a separate branch of the botany--archaeobotany constituted. in the czech republic it was e. opravil who was the first to become engaged in a systematic archaeobotanical research at the beginning of the 60's. all the vegetal remains--fruits and seeds on the first plac ...200015828207
use of esr for the detection of irradiated dates (phoenix dactylifera l.).one variety (aple) of libyan dry dates (phoenix dactylifera l.) was irradiated in a 60co source to absorbed doses of 0.8, 1.0, 1.5 and 2.0 kgy. unirradiated date stone contains a radical with a single line g = 2.0045, feature a. irradiation to a dose of 2.0 kgy (the recommended dose for fruits in u.k.) induces the formation of additional radicals with signals g = 1.9895 and 2.0159, feature c. the single line having g = 2.0045 decays in both unirradiated and irradiated samples whereas the additio ...20009022203
phoenix date palm injuries: a review of injuries from the phoenix date palm treated at the starship children's hospital.the purpose of this study was to review patients treated for penetrating phoenix date palm injuries. documentation of the clinical behaviour of these injuries was sought as they have different clinical outcomes to other foreign body injuries.200010830599
[the nutmeg story].a brief historical account of the spice islands, the moluccas, in the age of discovery with particular reference to the dutch monopoly of nutmeg is presented. the etymologies of such english terms as nutmeg (nut+musk), mace, myristica, date, and phoenix, as well as chinese róu dóu kóu (engl. nutmeg) and japanese natsume (engl. jujube) and natsume-yashi (engl. date palm) are given.200111777001
a water-soluble galactomannan from the seeds of phoenix dactylifera l.a water-soluble polysaccharide, isolated from the seeds of dates, has been investigated using methylation, periodate and cro(3) oxidation, nmr spectroscopy, and reaction with bandeiraea simplicifolia lectin and alpha-d-galactosidase. the polysaccharide consists of a backbone composed of (1-->4)-beta-d-mannopyranosyl residues and carries a single (1-->6)-alpha-linked d-galactopyranosyl residue.200111595224
detection of palm fruit lipids in archaeological pottery from qasr ibrim, egyptian nubia.in modern times, the trees of the palm family have been of great economic and social importance to the people in egypt, as in other parts of the world. there are various species of palm and although different parts of the tree can be used, the fruit are of great value. in antiquity, it is expected that the palm fruit would also have been of great importance to people in the region. the chemical analysis of absorbed residues in archaeological pottery is well established, and through the investiga ...200111297176
tylenchida associated with different crops in sennar state (sudan).a study was done on the taxonomy and morphology of plant parasitic nematodes (tylenchida) found in sennar state (sudan). sixty samples of different crops were collected in the sugarcane area. thirty samples originated from soil around the roots of saccharum officinarum (sugarcane) from different ratoons and thirty samples were collected from other crops (mangifera indica; citrus limon; citrus aurantifolia; citrus paradisi; citrus sinensis, phoenix dactylifera, musa sapentium; cassia italica, cap ...200112425088
antioxidant and antimutagenic properties of aqueous extract of date fruit (phoenix dactylifera l. arecaceae).fruits of the date palm (phoenix dactylifera l. arecaceae) are very commonly consumed in many parts of the world and are a vital component of the diet in most of the arabian countries. this preliminary study documents for the first time its antioxidant and antimutagenic properties in vitro. there was a dose-dependent inhibition of superoxide and hydroxyl radicals by an aqueous extract of date fruit. the amount of fresh extract required to scavenge 50% of superoxide radicals was equivalent to 0.8 ...200211804538
cross-reactivities between date palm (phoenix dactylifera l.) polypeptides and foods implicated in the oral allergy syndrome.date fruit and pollen antigens share a number of cross-reactive epitopes. date pollen has been shown to cross-react with antigens from artemisia, cultivated rye (secale cereale), timothy grass (phleum pratense), sydney golden wattle (acacia longifolia) and bermuda grass (cynodon dactylon) pollen. the present study was carried out to examine any cross-reactivities between date palm polypeptides and antigens of some common foods and vegetables that have been implicated in the oral allergy syndrome ...200212028116
edible dates (phoenix dactylifera), a potential source of cladosporium cladosporioides and sporobolomyces roseus: implications for public health.edible dates (phoenix dactylifera) were examined for the presence of endogenous yeasts and filimentous fungi. mean counts of fungi were 530 colony forming units (cfu) per gram of fruit, representing a mixture of two phenotypic colony types. subsequent dna extraction and pcr amplification of these two morphotypes yielded an amplicon of approximately 350 bp with the 5.8s-28s rrna its region. sequence analysis identified these to be cladosporium cladosporioides (230 cfu/g) and sporobolomyces roseus ...200212041868
monitoring of cadmium in "on" and "off" date palms.the study demonstrated that the mature dates we investigated were considered safe for human consumption. however, our findings revealed that much of the early fruit and leaves, which appeared at the advent of the fruiting season, possessed elevated levels of cadmium (cd) that could accumulate in the food chain and thus impact adversely on the environment. in addition, animal feed for livestock contains date leaves, which should be restricted to the mature ones. the monitoring of cadmium in date ...200212220113
microflora of date fruits and production of aflatoxins at various stages of maturation.twenty-five varieties of dates (phoenix dactylifera) were examined at different maturation stages for total microbial counts, aflatoxins and aflatoxigenic aspergillus sp. and lactic acid bacteria. the samples were examined as fresh and under simulated storage condition of high humidity. microbial counts were high at the first stage of maturation (kimri) and increased sharply at the second stage (rutab), then decrease significantly at the final dried stage of maturation (tamr). aflatoxins were de ...200212382691
date palm kernel extract exhibits antiaging properties and significantly reduces skin wrinkles.hormones play a central role in skin appearance and are implicated in skin aging. recently, along with the remarkable increase in interest in natural products, the application of phytohormones in antiaging products has become very important. in this context, we developed date palm kernel extract. date palm kernel is rich in phytohormones and we investigated the antiaging properties of date palm kernel in this in vivo study on wrinkles. ten healthy women volunteers, between the ages of 46 and 58 ...200212779247
[identification of the intraclonal variability of date-palm vitro-plants grown via organogenesis from in vitro cultures: morphological study].the greater rhythm of the degradation of the morocco palm plantation implies a repopulation with vitroplants. to estimate the behaviour of those vitroplants, a morphological study of clones of date palm, obtained via organogenesis from primordial leaves surrounding the shoot tip of young offshoots, was carried out on 92 vitroplants arising from three cultivars (boufeggous, jihel and bouskri) and two saïrs (saïr 16 bis and 35). the results of the principal components analysis (pca) of 34 morpholo ...200212481688
an analysis of skin prick test reactions in asthmatics in a hot climate and desert environment.studies have shown that allergens are very important sensitizing agents in patients with asthma. respiratory disorders such as asthma and allergic rhinitis are common in the united arab emirates, (uae).200212449666
a neutral beta-d-glucan from dates of the date palm, phoenix dactylifera l.polysaccharides extracted from libyan dates with hot water and 0.05 m naoh were fractionated and purified by ion-exchange and gel-filtration chromatography. according to the methylation and hydrolysis analyses, the results indicate the d-glucan to be linear and to contain both (1-->3)- and (1-->4)-linkages. the anomeric nmr measurements confirm that the sugar residues are beta-glycosidically linked. this is the first report on the isolation of a neutral beta-d-glucan from dates.200212151214
chronic synovitis caused by a date palm thorn: an unusual clinical picture.synovitis related to plant thorns is a rare pathology. as in this case, thorn prick injury, which is particularly caused by thin palm thorns, is frequently missed in clinical history. clinical presentation of cases may simulate juvenile rheumatoid arthritis with monoarticular involvement and septic arthritis. removal of all thorns with partial or total synovectomy is essential in definitive treatment. arthroscopy is the most valuable method of meeting both diagnostic and therapeutic purposes as ...200211830822
gastrointestinal transit in mice treated with various extracts of date (phoenix dactylifera l.).dates are commonly consumed, especially in the middle east, but their effect on gastrointestinal transit (git) has not been quantified. the effect of water and ethanol extracts from date flesh and date pits on the git in mice was studied. fasted unanaesthetized male mice received by gavage either the vehicle (0.02 m/kg), or the extracts at doses of 0.01, 0.02 or 0.04 ml/kg. two separate groups received either clonidine (1 mg/kg) or yohimbine (2 mg/kg). two hours later, all animals were given a t ...200312453726
date palm and sandstorm-borne allergens. 200312680855
integrated crop management of the lesser date moth batrachedra amydraula meyr. (lepidoptera: cosmopteridae) infesting some date-palm varieties in egypt.the present study was conducted during the two subsequent seasons of 2001 and 2002 in el-beheira governorate, egypt, to evaluate the efficiency of some agricultural practices on the incidence of the lesser date-moth, batrachedra amydraula meyr. (lepidoptera: cosmopteridae) on some date-palm varieties, i.e. sammany, hayany and halawy. the studied agricultural practices, were: covering clusters of flowers with paper craft, covering date bunches with porous plastic cloth, thinning of bunches and/or ...200315149111
identification of phoenix dactylifera l. varieties based on amplified fragment length polymorphism (aflp) markers.the amplified fragment length polymorphism (aflp) technique was applied to identify palm varieties. fluorescence labelled primers were used in selective amplifications and the amplified fragments were detected on capillary gel electrophoresis using an automated dna sequencer with the analysis fragment option. this is a rapid and efficient technique for detecting a large number of dna markers on the date palm. phoenix dactylifera l. varieties bou-fegous, medjool, and e-528 from estación phoenix ( ...200314668912
an alkali-soluble heteroxylan from seeds of phoenix dactylifera l.alkali-soluble polysaccharides, isolated from the seeds of dates, have been investigated using methylation and partial hydrolysis studies. the polysaccharides are shown to contain d-xylose and 4-o-methyl-d-glucuronic acid in a molar ratio of 5:1. an aldobiouronic acid from hemicellulose was characterized, and investigation revealed that the hemicellulose consists of a polymer of (1-->4)-linked d-xylopranosyl residues having branches of d-xylopyranosyl and 4-o-methyl-alpha-d-glucopyranosyluronic ...200312860432
the fruit of the date palm: its possible use as the best food for the future?the fruits (dates) of the date palm (phoenix dactylifera l.) contain a high percentage of carbohydrate (total sugars, 44-88%), fat (0.2-0.5%), 15 salts and minerals, protein (2.3-5.6%), vitamins and a high percentage of dietary fibre (6.4-11.5%). the flesh of dates contains 0.2-0.5% oil, whereas the seed contains 7.7-9.7% oil. the weight of the seed is 5.6-14.2% of the date. the fatty acids occur in both flesh and seed as a range of saturated and unsaturated acids, the seeds containing 14 types ...200312850886
an optimised protocol for plant regeneration from embryogenic suspension cultures of date palm, phoenix dactylifera l., cv. deglet nour.an improved protocol is described for the large-scale micropropagation of an elite date palm ( phoenix dactylifera l.) cultivar, deglet nour. clonal plants were regenerated from somatic embryos derived from highly proliferating suspension cultures. friable embryogenic calli were initiated from both leaf and inflorescence explants. suspension cultures consisting of pro-embryonic masses were established from calli showing a high competency for somatic embryogenesis. the subculture of suspensions i ...200312789425
risk assessment of chromium and arsenic in date palm leaves used as livestock feed.appreciable levels of total chromium (cr) and arsenic (as) were found (by emission spectroscopy) in date palm leaves, which form a significant ingredient in livestock feed. the levels in the fruit were considered safe for human consumption. our work involved evaluation of the distribution of these elements in the leaves during the developmental stages of the fruiting season. thirty-six leaf specimens of the fard cultivar were collected 9, 15 and 20 weeks, respectively, after pollination and subj ...200312742396
molecular phylogeny of date palm (phoenix dactylifera l.) cultivars from saudi arabia by dna fingerprinting.genetic diversity among 13 different cultivars of date palm (phoenix dactylifera l.) of saudi arabia was studied using random amplified polymorphic dna (rapd) markers. the screening of 140 rapd primers allowed selection of 37 primers which revealed polymorphism, and the results were reproducible. all 13 genotypes were distinguishable by their unique banding patterns produced by 37 selected primers. cluster analysis by the unweighted paired group method of arithmetic mean (upgma) showed two main ...200312879257
a weevil pollinating the canary islands date palm: between parasitism and mutualism.palm pollination systems are highly diverse, including by wind and by several different groups of insects. many palm species are associated with more or less specific pollinating weevils that are also floral herbivores. for many such palms, the importance of these "palm flower weevils" as pollinators has not been examined. here we describe a new ex situ method of demonstrating insect pollination when pollinator exclusion is not possible. we show that neoderelomus piriformis beetles carry pollen ...200314564403
ensilage of cardboard and date palm leaves.eight treatments of cardboard (cb) and date palm leaves (dpl) with or without alkali treatments plus molasses, dates, and ammonium sulfate were ensiled in laboratory silos. latobacillus plantarum and saccharomyces cerevisiae inoculants were added at an application rate of 10(5) cfu/g of silage to study their possible influence on the fermentation process. silos were sealed and incubated at 30 degrees c. the anaerobic ensiling was evaluated for chemical and microbiological variables by opening th ...200415027834
'candidatus phytoplasma cynodontis', the phytoplasma associated with bermuda grass white leaf disease.bermuda grass white leaf (bgwl) is a destructive, phytoplasmal disease of bermuda grass (cynodon dactylon). the causal pathogen, the bgwl agent, differs from other phytoplasmas that cluster in the same major branch of the phytoplasma phylogenetic clade in <2.5% of 16s rdna nucleotide positions, the threshold for assigning species rank to phytoplasmas under the provisional status 'candidatus'. thus, the objective of this work was to examine homogeneity of bgwl isolates and to determine whether th ...200415280272
a genetic and structural analysis of the n-glycosylation capabilities.the recent draft sequencing of the rice (oryza sativa) genome has enabled a genetic analysis of the glycosylation capabilities of an agroeconomically important group of plants, the monocotyledons. in this study, we have not only identified genes putatively encoding enzymes involved in n-glycosylation, but have examined by maldi-tof ms the structures of the n-glycans of rice and other monocotyledons (maize, wheat and dates; zea mays, triticum aestivum and phoenix dactylifera); these data show tha ...200415604706
male aggregation pheromone of date palm fruit stalk borer oryctes elegans.laboratory and field investigations were carried out to characterize the chemical communication system of the date palm fruit stalk borer, oryctes elegans, and to develop pheromone-based trapping in eastern iran. adults of both sexes feeding on date palm pieces attracted conspecifics, whereas date palm alone was minimally attractive. males were twice as attractive as females. more beetles were captured at the palm crown than at ground level. odors from adults feeding on sugarcane were sampled an ...200415112731
genetic diversity of tunisian date palms (phoenixdactylifera l.) revealed by nuclear microsatellite polymprohism.fourteen microsatellite loci of phoenix dactylifera were targeted to examine the genetic diversity in tunisian date-palms germplasm. they showed a high level of polymorphism in 49 accessions from three main oases with little geographic structure within tunisia. the microsatellite data agrees with previous analyses of tunisian germplasm using other molecular markers. 100% of local date-palms accessions were successfully fingerprinted and easily distinguished by the help of only three loci. the po ...200415703044
mineral ion content of the seeds of six cultivars of bahraini date palm (phoenix dactylifera).the mineral ion composition of six different cultivars of bahraini dates palm (phoenix dactylifera) seeds (khalas, murzban, khunaizi, khawajah, khasaib asfor, and khaseeb) were analyzed using flame atomic absorption spectroscopy (aa and icps). murzban was found to contain the higher mineral ion content. the essential bulk metal ions in the six cultivars were found to be dominant, where [k+] was the highest and [ca2+] was the lowest. the decreasing order of essential trace metal ion concentration ...200415479017
rapid isolation of dna from chocolate and date palm tree crops.dna isolation from plants is sometimes difficult due to the existence of high levels of endogenous phenolics, polysaccharides, or other substances that may interfere with dna extraction. theobroma cacao produces high levels of anthocyanins in young leaves. these plant polyphenols can interfere with dna isolation. after examination of various procedures for dna isolation, two commercial isolation procedures have proved to be repeatedly successful using these types of plants, the d(2) biotechnolog ...200415315385
local and systemic reactions to puncture injuries by the sea urchin spine and the date palm thorn.puncture wounds were cuased in 9 patients by sea urchin spines and 1 patient by a date palm thorn. all 10 patients developed local inflammatory reactions, which were moderate to severe in 7. two patients exhibited severe systemic illnesses, and a marked synovitis was present in 2 others. several of the patients presented as difficult diagnostic problems with signs and symptoms suggestive of an arthritic disease. six required surgical removal of the foreign body.200420111
allergic rhinitis in the middle east.current military operations in the middle east involve active duty, national guard, and reserve troops from all services. despite common misconceptions, the desert environment in this region has significant aeroallergen seasons that may exacerbate allergic rhinitis.200516491940
comparison of antioxidant activity, anthocyanins, carotenoids, and phenolics of three native fresh and sun-dried date (phoenix dactylifera l.) varieties grown in oman.fresh and sun-dried dates of three native varieties from oman, namely, fard, khasab, and khalas, were examined for their antioxidant activity and total contents of anthocyanins, carotenoids, and phenolics, as well as free and bound phenolic acids. all results are expressed as mean value +/- standard deviation (n = 3) on a fresh weight basis. fresh date varieties were found to be a good source of antioxidants (11687-20604 micromol of trolox equiv/g), total contents of anthocyanins (0.24-1.52 mg o ...200516159191
compositional and sensory characteristics of three native sun-dried date (phoenix dactylifera l.) varieties grown in oman.three native sun-dried date varieties grown in oman, namely, fard, khasab, and khalas, were examined for their proximate composition, sugars, dietary fiber, minerals, and organic acids as well as sensory characteristics. the study was conducted on sun-dried dates due to their higher consumption compared with fresh dates. all results are expressed as mean value +/- standard deveiation (n = 3) on a fresh weight basis except for sensory analysis. date varieties were found to be low in fat and prote ...200516159190
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