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Relevant bibliographies by topics / Date palm pollen (Phoenix dactylifera L)

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Academic literature on the topic 'Date palm pollen (Phoenix dactylifera L)'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Date palm pollen (Phoenix dactylifera L)"

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Kwaasi, A. A. A., R. S. Parhar, P. Tipirneni, H. Harfi, and S. T. Al-Sedairy. "Major allergens of date palm (Phoenix dactylifera L.) pollen." Allergy 48, no. 7 (October 1993): 511–18. http://dx.doi.org/10.1111/j.1398-9995.1993.tb01107.x.

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Tahvilzadeh, Mohammad, Mannan Hajimahmoodi, and Roja Rahimi. "The Role of Date Palm (Phoenix dactylifera L) Pollen in Fertility." Journal of Evidence-Based Complementary & Alternative Medicine 21, no. 4 (July 8, 2016): 320–24. http://dx.doi.org/10.1177/2156587215609851.

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Date palm pollen (DPP) is the male reproductive dust of palm flowers used as dietary supplement especially as aphrodisiac and fertility enhancer in both women and men from ancient times. Although there are few clinical trials evaluating the beneficial effects of DPP in humans, various experimental studies have been conducted on the reproductive effects of DPP. Among the compounds isolated from DPP are amino acids, fatty acids, flavonoids, saponins, and estroles. The present review summarizes comprehensive information concerning the phytochemistry and pharmacological activities of DPP and its application in fertility disorders.

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Awad, M. A. "POLLINATION OF DATE PALM (PHOENIX DACTYLIFERA L. 'LULU') WITH POLLEN GRAINS WATER SUSPENSION." Acta Horticulturae, no. 882 (December 2010): 337–43. http://dx.doi.org/10.17660/actahortic.2010.882.38.

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Awad, Mohamed. "Pollination of Date Palm (Phoenix dactylifera L.) cv. ‘Lulu’ with Pollen Grains-Water Suspension." Journal of King Abdulaziz University-Meteorology, Environment and Arid Land Agriculture Sciences 22, no. 1 (2011): 91–101. http://dx.doi.org/10.4197/met.22-1.7.

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Araak, Jawad Kadhim. "The Protective Role of Date Palm Pollen (Phoenix dactylifera L.) on Liver Function in Adult Male Rats Treated with Carbon Tetrachloride." Iraqi Journal of Veterinary Medicine 36, no. 0E (April 4, 2012): 132–42. http://dx.doi.org/10.30539/iraqijvm.v36i0e.409.

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The present study was carried out to investigate the protective role of date palm pollenaqueous suspension against the toxic effects of carbon tetrachlorideon liver function in adultmale rats by studying the following parameters,estimation of ALP, AST, ALT enzymesactivity, totalserum bilirubin, and histological study of liver.Forty adult male rats aged 12-14weeks and weighed 275-325 gm were randomly divided into four equal groups(10 rats/group)and were treated for 42 days as follows : rats of the first group were received 1 ml tap waterorally once a day and olive oil 0.5 ml /kg B.W. intraperitonelly twice a week whichconsidered as group C, rats of the second group were received date palm pollen suspensionorally (150 mg/kg B.W) once a day and olive oil 0.5 ml /kg B.W. intraperitonelly twice aweek( group T1),rats of the third group were treated intraperitonelly with 500mg / kg B.W. ofCCL4 mixed with equal volume of olive oil twice a week (group T2) ,while rats of the fourthgroup were received date palm pollen suspension (150 mg/kgB.W) once a day orally andtreated intraperitonelly with 500 mg / kg B.W. of CCL4 mixing with equal volume of oliveoil twice a week (group T3). The blood samples were collected at (zero, 14, 28, 42) days forbiochemical parameters. After that, six rats from each group were sacrificed, and thensamples of liver were taken for histological study. The results revealed no significantdifferences (P > 0.05)in Liver Enzymes activity (ALT , AST , ALP ) as well asserumBilirubin (TSB) inT1 group treated with date palm pollen comporting with control groupwhile a significant elevation(P ≤ 0.05) in liver Enzymes (ALT , AST , ALP ) activity and totalserum bilirubin (TSB) in group T2 which exposed to carbon tetrachloride.the protective roleof date palm pollen against carbon tetrachloride was recorded in group T3 which manifestedby significant differences (P>0.05) in liver enzymes activity (ALT , AST , ALP ) and serumbilirubin (TSB) as compared to the control.The histological study of liverof date palm pollentreated rats (group T1) indicated proliferation of kupffer cells and no nuclear lesion, whilegroup T2 showed severe vacuolation in the hepatocytes, while group T3 showed moderatevacuolation in hepatocytes.From the result obtained ,it was concluded that it seems likely thatdosage of rats with (150 mg/kg B.W) of date palm pollen for 42 days of treatment causedimprovement and enhancement of liver function against carbon tetrachloride harmful effects.

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Seif El-Yazal, M. A., and Samir A. Seif El-Yazal. "Determination of Five Mineral Element Contents in Pollen Grains of Different Seedling Date Palm (Phoenix dactylifera L.) Male Trees Grown in Fayoum Governorate, Egypt." Journal of Horticulture and Plant Research 7 (August 2019): 16–25. http://dx.doi.org/10.18052/www.scipress.com/jhpr.7.16.

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This experiment was conducted to found the connection between sensible male pollinators and the content from mineral element (Zinc, Irion, Manganese, Cupper and Magnesium) in pollen grain of fifty seedling date palm male and compared it with the best selective five seedling date palm males (number 2, 10, 29, 40, 46) are appropriate and promising males for to be utilized in pollinating female date palms and mistreatment in breeding programs in previous study. Results found variations among the categories of pollen and elements. The highest concentration of zinc was found in males' number (2, 10, 40 and 46) which recorded 127,102, 115 and 122 μg/g dry weight respectively as compared to the other male trees. Also the highest concentration of iron was found in male number (40) which recorded 222 μg/g dry weight as compared to the other male trees. Moreover, notes from result excellence male number (10) in manganese concentration which recorded 202 μg/g dry weight as compared to the other male trees. In this concern, pollen grain of date palm male trees contained also, high concentrations of copper and magnesium the concentration ranging from 10 to 30 and 1320 to 1985 μg/g dry weight for copper and magnesium respectively. The best result for copper and magnesium which obtained from the selective male number (46) which recorded 30 and 1985 μg/g dry weight for copper and magnesium respectively as compared to the other male trees. From all the results we can conclude that the date palm pollen grain was as rich source of important minerals, so its suitability as a regular component in plant and human diet.

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Mesnoua, M., M. Roumani, M. K. Bensalah, A. Salem, and A. Benaziza. "Optimization of conditions for in vitro pollen germination and pollen tube growth of date palm (Phoenix dactylifera L.)." Journal of Fundamental and Applied Sciences 10, no. 1 (January 25, 2018): 158. http://dx.doi.org/10.4314/jfas.v10i1.11.

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Salomón-Torres, Ricardo, Jesús Arturo Sol-Uribe, Benjamín Valdez-Salas, Conrado García-González, Robert Krueger, Daniel Hernández-Balbuena, Susana Norzagaray-Plasencia, Juan Pablo García-Vázquez, and Noé Ortiz-Uribe. "Effect of Four Pollinating Sources on Nutritional Properties of Medjool Date (Phoenix dactylifera L.) Seeds." Agriculture 10, no. 2 (February 18, 2020): 45. http://dx.doi.org/10.3390/agriculture10020045.

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The objective of this study was to evaluate the effect of pollen source on the nutritional composition of seeds of the ‘Medjool’ date (Phoenix dactylifera L.) under conditions of northwest Mexico. The content of nutrients (protein, lipids, fiber, and ash), sugars (total, reducing, and non-reducing), and most abundant minerals, were evaluated, as well as antioxidant activities. The pollen of four cultivars (‘Deglet Noor’, ‘Khadrawy’, ‘Medjool’, and ‘Zahidi’) was selected. Four groups of three bunches were pollinated in each of the female palms. For the four treatments, the following ranges were obtained: Seeds had a weight of 1.32–1.41 g and low concentrations of protein (4.44–5.49 g/100 g) and lipids (9.62–10.19 g/100 g). The content of dietary fiber and ash was 59.65–72.59 g/100 g and 1.09–1.42 g/100 g, respectively. Total sugars content was 4.50–6.96 g/100 g, while the insoluble solids were 92.21–96.03 g/100 g. The predominant mineral was potassium with 399.97–459.79 mg/100 g dry weight, followed by sulfur with 135.51–162.67 mg/100 g dry weight. Finally, for antioxidant activities, DPPH (2,2′-diphenyl-1-picrylhydrazyl) and ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)) assay results were 0.0014–0.0094 IC50 g/L and 0.176–0.299 IC50 g/L, respectively. The pollen sources had an effect on the physicochemical properties of the seeds of the ‘Medjool’ cultivar date. However, some of the parameters (diameter, total acidity, pH) did not show statistically significant differences. The pollen sources from the ‘Khadrawy’ and ‘Medjool’ cultivars were the ones that induced differences in physical, proximate, and nutritional parameters, while pollen from the ‘Zahidi’ source induced the largest differences for minerals. The results suggest that selection of the source of pollen has a significant effect on the nutritional properties of the date seed from the cultivar ‘Medjool’, and that its use could be feasible as a functional food or by-product of the date production.

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Salomón-Torres, Ricardo, Noé Ortiz-Uribe, Jesús Arturo Sol-Uribe, Noé Salvador Ortiz-Ruiz, and Laura Samaniego-Sandoval. "La extracción de polen, aplicación y efecto en la calidad del fruto de la palma datilera / Pollen extraction, application and effect on the quality of the date palm fruit." Brazilian Journal of Animal and Environmental Research 4, no. 2 (May 10, 2021): 2146–55. http://dx.doi.org/10.34188/bjaerv4n2-047.

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El manejo de la polinización en el cultivo de palma datilera, es un proceso clave en el éxito de la cosecha de dátiles. El presente trabajo es una revisión de las técnicas más comunes tanto de extracción de polen, como de polinización en la palma datilera (Phoenix dactylifera L.). Asimismo se hace un análisis de la influencia de las fuentes de polen de los cultivares Deglet Noor, Khadrawy, Medjool y Zahidi sobre la calidad física y nutricional del dátil cultivar Medjool en México, donde se muestra que el uso de polen de machos criollos derivados de la variedad Khadrawy inducen mayor peso de fruto y semilla, así como mayor contenido de azucares, minerales y fenoles.

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Ali Aubied, Imad, and Hader Abdalkhadhm Hamzah. "Effect of Pollen Grains and Growth Regulator NAA on Some Fruit Characterization of Date Palm Phoenix Dactylifera L Cultivar. Sultani." Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN: 2077-5822 , E-ISSN: 2617-1479) 9, no. 1 (March 7, 2019): 136–42. http://dx.doi.org/10.33794/qjas.vol9.iss1.70.

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This research was conducted in orchard belong to Al-Mahawel date palm station (Abo Sderah) / Ministry of Agriculture located in governorate of Babylon, during the season 2015-2016. Twenty four uniform date palm Phoenix dactylifera. L. Sultani cultivar were used , to study the effect of the pollinator type(P1: Ghannamiakhder , P2: Ghannamiahmer and P3:khukri ), the concentration of Naphthalene Acetic Acid NAA(0 , 50 and 100 ) mg.L-1 and their interaction on fruits setting up , fruits drop and some of physical and chemical characteristics of fruits of date palm Sultani cultivar .Experiment carried out as factorial experiment(3×3) by Randomized Complete Block Design (RCBD) with three replications in each treatment , and the means were compared using LSD level of significant test at P ≤ 0·05. The results can be summarized as that Ghannamiahmer (P2)cultivar and 50 mg.L-1 NAA application showed a significant increase in the fruit setting% , while Khukri cultivar(P3) showed significantly increased fruit size and weight as compared with the other cultivars.Furthermore the cultivar(P1) obtained a significant increase in the bunch weight in Rutab stage as compared with the other cultivars. While the cultivar (P2) with 100 mg.L-1 NAA application showed significant increase in bunch weight in Rutab stage as compared with the other interactions. Ghannamiakhder (P1) cultivar had a significant increase in the fruit content of reducing sugars and non-reducing sugars, while khukri showed significant increase in fruit content of dry matter% and total sugars as compared with the other cultivars.

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Dissertations / Theses on the topic "Date palm pollen (Phoenix dactylifera L)"

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Kwaasi, Aaron Alfred Assah. "Characterisation of antigens and allergens of the date palm (Phoenix dactylifera L.)." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341829.

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Elgenaidi, Abdalla Ramadan. "Effects of Libyan traditional plants on the reproductive system of male and female rats." University of the Western cape, 2015. http://hdl.handle.net/11394/5412.

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Philosophiae Doctor - PhD
In different parts of the world, medicinal plants have demonstrated a lot of health benefits to mankind and remains an important source for the discovery of new bio-active compounds. Libya is a typical example of a country where medicinal plants are widely used. Plant extracts of five Libyan medicinal plants were used in this study to investigate their in vivo effects on spermatogenesis and steroidogenesis in male rats and on ovulation and fertility in female rats. The In vitro effects of these plant extracts were also investigated on TM3 Leydig cells and MCF 7 breast cancer cells. A phyto-chemical analysis of the five Libyan medicinal plants (flaxseed, black seeds, radish seed, date palm pollen and nutmeg) was done. The results showed that date palm pollen had a higher antioxidant activity than all of the above mentioned plants. In addition to this, Nigella sativa was observed to possess high flavonol content as well as high antioxidant activity. Male rats exposed to flaxseed, radish seeds and date palm pollen showed no significant alterations in body weight gain, whereas date palm pollen (240 mg/kg, p < 0.05) promoted an increase in body gain. This study also revealed a significant increase in the relative testicular weight of animals exposed to either flaxseed (300mg/kg) or date palm pollen (120mg/kg). In addition, the relative weights of the seminal vesicles of all treated groups showed significant increased values. The level of serum testosterone showed a significant increase after exposure to radish seed (80mg/kg) and a significant dose- dependent increase for date palm pollen when compared to control (P< 0.05). In contrast, flaxseed caused a dose-dependent significant (p <0.01) decrease in testosterone level at radish seed (300mg/Kg). All plant extracts caused a significant increase in sperm concentration. Sperm vitality significantly (p < 0.05) increased by radish seed (80mg/kg), flaxseed (300mg/kg) and date palm pollen (120, 240mg/kg) respectively. Total progressive motility improved significantly at flaxseed (300 mg/kg) (p < 0.001) as well as date palm pollen (p < 0.01). Histological examination of the cross sections of the testis showed clear presence of all stages of spermatogenesis in all the treated groups. Rat epididymides showed normal morphological appearance and their lumen were filled with spermatozoa. The diameter of seminiferous tubules in male rats exposed to date palm pollen (120 and 240 mg/kg) was significantly higher (p < 0.001). The heights of the germ cell epithelia within the eminiferous tubules were also significantly increased in all treated groups. Liver and renal functions tests showed a significant decrease in Alanine transaminase (ALT) and creatinine in all treated groups (p < 0.05), and this demonstrates the lack of cytotoxic effects of date palm pollen, radish seed and flaxseed on the rats. However, these plant extracts produced a non-significant (p > 0.05) increase in Aspartate transaminase (AST) levels. Besides this, superoxide dismutase activity (SOD) in testis was increased significantly by radish seed (160 mg/kg), flaxseed (200 mg/kg) and date palm pollen (120 mg/kg). There was also improved catalase activity in testis of male rats exposed to radish seed and date palm pollen. Regarding male sexual behavior, the time to reach the female and the mount frequency decreased significantly in male rats exposed to flaxseed (300 mg/kg) and date palm pollen (120 and 240 mg/kg; p > 0.05) thus, these plant extracts exhibit aphrodisiac properties. In addition, exposure of male rats to date palm pollen (120 mg/kg) produced a significant (p < 0.01) increase in the number of embryos in untreated female rats. In the female rats, the body weight gain was not affected (p > 0.05). However, the relative uterus weights exposed to nutmeg (200 mg/kg) and date palm pollen (120 and 240 mg/kg) were significantly decreased (p < 0.05). In addition, the relative weights of ovaries after treatment with nutmeg (400 mg/kg) and black seed (400 mg/kg) showed significantly increased values (p < 0.01). Serum FSH was significantly increased (p > 0.05 or 0.01) when the female rats have been exposed to black seed (200 mg/kg), nutmeg (200 mg/kg) or date palm pollen (120 mg/kg). The LH level significantly (p < 0.01) decreased following exposure to black seed (200 mg/kg), date palm pollen (120 mg/kg). On the other hand, serum LH concentration was significantly increased in female rats exposed nutmeg (400 mg/kg; p > 0.05). The creatinine activity in female rat serum in all treated groups was significantly decreased (p < 0.05). Whereas the higher dose of date palm pollen (240 mg/kg) caused only a non-significant decrease. ALT activity in serum of female rat exposed to either black seed (400 mg/kg) or date palm pollen (120 and 240 mg/kg) was shown to decrease significantly (p < 0.05). Histology of the reproductive organs, kidney and liver in the female rats showed no obvious alterations in any of the treated groups. In addition, the number of embryos in female rats significantly increased (p < 0.01; p < 0.001) following exposure of female rats to black seeds 400 and date palm pollen 240 mg/kg, respectively. Incubation of TM3 Leydig cells with radish seeds for 24, 48 or 72 hours caused a significant (p < 0.01) decrease in mitochondrial dehydrogenase activity. Besides that, date palm pollen and flaxseed increased the mitochondrial dehydrogenases activity of TM3 Leydig cells. In addition, higher concentration of date palm pollen, nutmeg and black seed were cytotoxic to MCF7 breast cells. In testis slices testosterone secretion in vitro was significantly increased by flaxseed (500 μg/ml; p > 0·05) and date palm pollen (500 μg/ml; p > 0·01). MCf-7 cells treated with BS 10-50 μg/ml black seed and nutmeg 10-50μg/ml significantly increased cell proliferation. However, the treatment with date palm pollen produced only a weak estrogenic effect, which resulted in a concentration dependent significant increase as observed between 50-1000 μg/ml date palm pollen. In conclusion, in this study, we observed that date palm pollen, radish seed and flaxseed increased libido as well as steroidogenesis and spermatogenesis, improved hepato and nephron-protective effects. In female rats, the plant extracts NM, BS and date palm pollen potentiated the production of gonadotropic hormones. In addition to this, at lower concentrations these medicinal plants promoted cell growth, whereas at higher concentrations they inhibited cell proliferation of MCF- 7 breast cancer cells. The anti-oxidant effects of these plant extracts have been implicated for the above mention effects.

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Al, Mansoori Thuraya A. "Salt tolerance in date palm (Phoenix dactylifera L.)." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270424.

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Al-Ruqaishi, Ishaq Ahmed. "Clonal propagation and molecular analysis of date palm (Phoenix dactylifera L.)." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485918.

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Somatic embryogenesis is the mass production system of choice for date palm to increase the rates of vegetative propagation. However, the low rates of conversion to plants are common for somatic embryos. Up to 50% of plant productiqn in the Jimmah Tissue Culture Laboratory, Oman is lost during the stages of somatic embryo germination and conversion. Partial desiccation of date palm somatic embryos of the genotype Khalas Aldahra, either by dehydration for up to 4 hours or supplementation of the maturation Murashige and Skoog-based medium with sorbitol, sucrose and polyethylene glycol, increased significantly the percentage conversion to plants. In contrast, the addition of indol-3-butyric acid (IBA), a-naphthaleneacetic acid (NAA), 6-benzylaminopurine (BAP), abscisic acid (ABA), flurprimidol or activated charcoal to the germination medium did not improve the conversion of embryos to plants compared to the control. A protocol for cryopreservation of somatic embryos and embryogenic cultures of the genotype Buhabisha was developed in the current study using the vitrification method (incorporating PVS2 solution) and pretreatment with glycerol, sorbitol and dimethylsulfoxide as a cryoprotectant prior to freezing. Despite the fact that, there was a low percentage of survival of somatic embryos, the results from this study provided evidence that it is possible to cryopreserve somatic embryos and embryogenic callus of Omani date palms. A cell suspension protocol from the genotype Buhabisha was established in this study in order to utlilise more efficient micropropagation methods and to overcome the problems of the large size of somatic embryos that may lead to an efficient cryopreservation technique. NAA gave the best regeneration frequency of somatic embryos compared to 2,4-dichlorophenoxyacetic acid (2,4-D) or picloram. However, attempts to replace activated charcoal in the date palm cultures with either polyvinylpyrolidone or ascorbic acid were unsuccessful. The use of dialysis membrane to separate cell suspensions from activated charcoal was successful, but the generation of somatic embryos was low. Twenty one genotypes obtained from the Jimmah Research Station, Oman were screened and evaluated with microsatelIite markers to establish a DNA fingerprinting procedure. Simple Sequence Repeats (microsatellites) showed that date palm genotypes analysed had high genetic divergence. Importantly, somaclonal variation was not detected by DNA fingerprinting in tissue culture-derived plants of the genotype Khalas Aldahra.

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Al-Mamari, Al-Ghaliya Humaid. "Application of genomics and molecular genetics in date palm (Phoenix dactylifera L.)." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/27894/.

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Date palm (Phoenix dactylifera L.) is a diploid with 18 pairs of chromosomes and an estimated genome size of 658 Mb. It is a dioecious perennial monocot, with a long generation time (a period of 4-5 years until first flowering). Date palm is one of the major fruit crops grown in the Gulf countries and particularly in the Sultanate of Oman. Approximately 250 varieties of date palm are recorded throughout the country with evaluation and characterization based on morphological and reproductive traits (e.g. fruit color, fruit shape and fruit weight). Limited molecular characterization work has been undertaken for date palm germplasm in general and Omani date palm germplasm, in particular. The principal focus of this study was to: investigate the genetic diversity of Omani date palm germplasm and compare it with 'exotic' germplasm, to differentiate between female and male plants at the molecular level and to construct an initial genetic map for date palm. Samples were taken from eight parents of the available Omani date palm controlled crosses (Khalas 4, Khalas 13 male, Um-Alsela, Khori male, Bami, Naghal, Bahlani male, and Khasab) with 90 date palms from the BC1 and F1 populations, from 194 Omani date palm accessions (151 female cultivars and 43 male trees), together with samples from Italy (Sanremo and Bordighera), USDA-ARS, France, Iraq, Libya, Sudan and Iran. The F-statistics analysis showed that the genetic variation between female and male accessions based on random markers was only 2.1 %, while within the broader group of Omani female and male accessions the molecular variation was 97%, suggesting that the Omani female and male accessions have little consistent divergence, compared to the large-scale divergence within Omani germplasm, so male palm have been derived from most genetic origins in Oman. Additionally, the Principal Coordinates Analysis (PCA) and bootstrap consensus phenetic tree showed that the Omani accessions were closely related to each other and there was no clear genetic differentiation between female and male cultivars. A high degree of genetic variation was observed between germplasm from Oman, Italy, USDA-ARS, France, Iraq, Libya, Sudan and Iran as measured by Fst (19.7 %). The PCA showed that the Europe-Africa (Italy, France, Libya and Sudan) accessions are distinguished from West-Asia (Oman, Iraq and Iran) accessions and have their own autochthonous origin, a finding which was strongly validated by bootstrap consensus tree test. A medium density genetic map in date palm was constructed using 53 individuals from BC1 and 30 individuals from F1 populations. The BC1 map consisted of 270 markers (28 SSR and 242 SNP) distributed into 29 linkage groups with total genetic length of 1.486.7 cM, while the F1 map consisted of 591 markers (21 SSR and 570 SNP) distributed into 30 linkage groups with total genetic length of 2,385.6 cM. A total of 25 combined linkage groups were possible by combining both BC1 and F1 maps through common markers. A sex-link marker locus was developed and found to predict a high level of discrimination between male and female date palms among multiple varieties distributed across the wide range of cultivation, with an accuracy of 100% in the Omani crosses, 96% in the broad Omani material and 86% in the broadest date palm germplasm. This marker was also mapped in both BC1 and F1 at 42.8 cM and 4.9 cM in linkage groups 18 and 29, respectively and on combined group 19 at 42.8cM.

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Al-Saad, Hamad S. "Regeneration and development of somatic embryos of date palm (Phoenix dactylifera L.)." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385238.

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Akasha, Ibrahim Abdurrhman Mohamed. "Extraction and characterisation of protein fraction from date palm (Phoenix dactylifera L.) seeds." Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2771.

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To meet the challenges of protein price increases from animal sources, the development of new, sustainable and inexpensive proteins sources (nonanimal sources) is of great importance. Date palm (Phoenix dactylifera L.) seeds could be one of these sources. These seeds are considered a waste and a major problem to the food industry. In this thesis we report a physicochemical characterisation of date palm seed protein. Date palm seed was found to be composed of a number of components including protein and amino acids, fat, ash and fibre. The first objective of the project was to extract protein from date palm seed to produce a powder of sufficient protein content to test functional properties. This was achieved using several laboratory scale methods. Protein powders of varying protein content were produced depending on the method used. Most methods were based on solubilisation of the proteins in 0.1M NaOH. Using this method combined with enzymatic hydrolysis of seed polysaccharides (particularly mannans) it was possible to achieve a protein powder of about 40% protein (w/w) compared to a seed protein content of about 6% (w/w). Phenol/TCA extraction gave the protein powder with the highest protein percentage of 68.24% (w/w) and this powder was used for subsequent functional testing. Several factors were found to influence seed protein extraction such as pH, temperature, the extraction time, the solvent to sample ratio and the solvent concentration. Optimum conditions for extraction were found to be pH 10, 45˚C and extraction time of 60 min. The results showed that use of enzymes to hydrolyse and remove seed polysaccharides improved the extraction of date seed protein. Optimal improvement was obtained using Mannaway, which hydrolyses mannans and galactomannans, which gave a powder with 34.82% (w/w) protein compared to the control of 11.15% (w/w) protein. The proteins in the extracted date seed protein were profiled using LC/MSMS. Three-hundred and seventeen proteins were identified. The proteins belonged to all major functional categories. The most abundant proteins were glycinin and β-conglycinin, the two major seed storage proteins of plants. The functional properties of extracted date seed protein were investigated using a range of tests. The thermal properties of date seed proteins were consistent with a powder containing high levels of conglycinin and β-glycinin. The solubility had a similar pH profile to soy protein, but differed in absolute solubility due to differences in non-protein composition. Similarly, water holding and oil holding capacity of date seed protein was lower than for soy protein, probably because of compositional differences. Date seed proteins were able to emulsify oils and had a comparable emulsifying ability and emulsion stability to soy protein isolate. The date seed protein was not a good foaming agent compared to soy protein or whey protein concentrate.

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El, Shiaty Olfat Hamed. "In vitro, propagation of Egyptian date palm (Phoenix Dactylifera L.) cultivars Zaghloul and Samani." Thesis, University of Southampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297380.

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9

Aitchitt, Mustapha. "Studies on somatic embryogenesis and development of DNA markers in date palm (Phoenix dactylifera L.)." Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/7315.

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Sakin, Abdrabo Shaymaa. "Analytical methods applied to the chemical characterization and classification of palm dates (Phoenix dactylifera L.) from Elche's Palm Grove." Doctoral thesis, Universidad de Alicante, 2013. http://hdl.handle.net/10045/28817.

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Book chapters on the topic "Date palm pollen (Phoenix dactylifera L)"

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Branton, R. L., and J. Blake. "Date Palm (Phoenix dactylifera L.)." In Trees II, 161–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-61535-1_9.

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Al-Khayri, J. M. "Date Palm Phoenix dactylifera L. Micropropagation." In Protocols for Micropropagation of Woody Trees and Fruits, 509–26. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6352-7_46.

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Omar, M. S., M. K. Hameed, and M. S. Al-Rawi. "Micropropagation of Date Palm (Phoenix dactylifera L.)." In Biotechnology in Agriculture and Forestry, 471–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-76422-6_25.

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Azim, M. Kamran. "Date Palm (Phoenix dactylifera L.) Chloroplast Genome." In The Date Palm Genome, Vol. 1, 201–9. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73746-7_9.

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Krueger, Robert R. "Date Palm (Phoenix dactylifera L.) Biology and Utilization." In The Date Palm Genome, Vol. 1, 3–28. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73746-7_1.

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Al-Mssallem, Muneera Qassim, Randah Muqbil Alqurashi, and Jameel Mohammed Al-Khayri. "Bioactive Compounds of Date Palm (Phoenix dactylifera L.)." In Reference Series in Phytochemistry, 1–15. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06120-3_6-1.

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Al-Khayri, Jameel M., Poornananda M. Naik, Shri Mohan Jain, and Dennis V. Johnson. "Advances in Date Palm (Phoenix dactylifera L.) Breeding." In Advances in Plant Breeding Strategies: Fruits, 727–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91944-7_18.

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Bhaskaran, Shyamala, and Roberta H. Smith. "Somatic embryogenesis in date palm (Phoenix dactylifera L.)." In Somatic Embryogenesis in Woody Plants, 461–70. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0491-3_24.

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Al-Mssallem, Muneera Qassim, Randah Muqbil Alqurashi, and Jameel Mohammed Al-Khayri. "Bioactive Compounds of Date Palm (Phoenix dactylifera L.)." In Reference Series in Phytochemistry, 91–105. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30182-8_6.

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Sattar, Muhammad Naeem, Zafar Iqbal, Muhammad Nadir Naqqash, S. Mohan Jain, and Jameel M. Al-Khayri. "Induced Mutagenesis in Date Palm (Phoenix dactylifera L.) Breeding." In The Date Palm Genome, Vol. 2, 121–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73750-4_7.

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Conference papers on the topic "Date palm pollen (Phoenix dactylifera L)"

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Mahdi, Zainab, Ali El Hanandeh, and Qimimg J. Yu. "Date Palm (Phoenix Dactylifera L.) Seed Characterization for Biochar Preparation." In International Conference on Engineering, Project, and Production Management. Association of Engineering, Project, and Production Management, 2015. http://dx.doi.org/10.32738/ceppm.201509.0015.

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Widyaningsih, W., A. Abinawanto, R. Lestari, A. Bowolaksono, and N. G. Zavitri. "Effect of various concentrations of palm date (Phoenix dactylifera L.) on spermatozoa motility of giant grouper (Epinephelus lanceolatus)." In PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5132520.

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"Effect of Natural Additives as Coconut Milk on the Shooting and Rooting Media of in vitro Barhi Date Palm (Phoenix dactylifera L.)." In By-Products of Palm Trees and Their Applications. Materials Research Forum LLC, 2019. http://dx.doi.org/10.21741/9781644900178-13.

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Nwaedh, M. H., E. A. Abizov, and А. Е. Kovalenko. "Prospects for the use of oil and seed powder of Iraqi date palm species of the Phoenix dactylifera l. plant in medicine and the development of medicines based on BAS." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-79.

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This research was conducted with the aim of extracting date oil (Phoenix dactylifera L.). After physicochemical analysis of the fruits and kernels of three local Iraqi varieties: al-Zahidi, al- Hilawi, and al-Sayer, the saxolite method was used, the content of oil extracted from saturated and unsaturated fatty acids was studied, and diagnostic tests were performed using the GC method -MS gas chromatography / mass spectrometry

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Rasheed, Rihab, Touria Bounnit, Hareb Al Jabri, and Imen Saadaoui. "Algae-based Biofertilizer for Date Palm Cultivation in Qatar." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0034.

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Date palm (Phoenix dactylifera L.) is the main fruit crop found in the arid and semi-arid regions of the world. It naturally adapts to the adverse environments of extreme heat and water scarcity and prevents further desertification in addition to producing fruits with high nutritional value. It is seen in many parts of the world that traditional cultivation practices such as mixed planting and chemical fertilizers have led to low fruit quality resulting in low market values. Long generation time also hinders production of the dates. Tissue culture is therefore considered the most promising solution for rapid large-scale production of trueto- type clonal plants. The plantlets originating from in vitro callus proliferation are transferred from synthetic media to soil. The conventional method of using chemical fertilizers also leads to low plantlet viability with increased environmental and health risk. The current research targets the use of a local microalga, Tetraselmis sp. QUCCCM8, identified as an organic source of nutrients, a substitute for chemical fertilizers to acclimatize cultured date palmlets to soil. Soil was supplemented with different concentrations of algal biomass and plant growth was monitored for 3 months. Soil without any fertilizer and soil amended with 1 g conventional fertilizer were used as negative and positive control, respectively. Supplementation with 0.5 g of algal biomass led to higher plant growth rates, 100% survival rates, high ability of rooting (3.17 ± 0.14 roots), higher number of leaves (2.5 ± 0.25 leaves), largest stem thickness, longer shoot (33.75 ± 1.56 cm), and higher total chlorophyll (159.61 ± 9.6 mg L⁻ ¹) as compared to conventional fertilizer. These stated findings are significantly higher than the control. Furthermore, elemental analysis of the soil showed that supplementation with algal biomass increased the soil total nitrogen, potassium, and phosphorus contents essential for plant growth. Finally, the comparison of heavy metals composition between soils amended with conventional fertilizer and algae-based fertilizer highlights the potential use of algae as a safe and efficient biofertilizer post tissue culture mode of plantlet generation. This enhanced the viability of healthy plantlets without affecting the environment, averting usage of chemical fertilizers.

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Abu-Reidah, Ibrahim, Ángel Gil-Izquierdo, Sonia Medina, and Federico Ferreres. "Qualitative analysis of phenolic metabolites from date palm (Phoenix dactylifera L.) tree by using liquid chromatography hyphenated with mass-spectrometry detection system." In The 1st International Electronic Conference on Metabolomics. Basel, Switzerland: MDPI, 2016. http://dx.doi.org/10.3390/iecm-1-c004.

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