TAILIEUCHUNG - Comparative study of pollen grains morphology and phytochemical constituents of some saudi arabian date palm (Phoenix dactylifera L.) Cultivars

Pollen morphological and phytochemical comparative study of nine Saudi Arabian date palm (Phoenix dactylifera L.) cultivars has been carried out. Pollen grains are generally small in size, monad, hetero-polar, asymmetric, elliptic in equatorial view, mono-sulcate. Exine sculpturing is micro-reticulate. Little differences have shown in the pollen dimensions, muri thickness and lumen size. The phytochemical screening of date palm pollen grains revealed the presence of high amounts of phenolics and flavonoids and displayed good antioxidant capacity. Additionally, High performance liquid chromatography (HPLC) analysis showed noticeable valuations in the distribution of different phenolic compounds among the nine pollen samples compared with 14 reference standards. Gallic acid, chlorogenic acid and caffeic acid were commonly detected in all methanolic pollen extracts. Moreover, 2, 5- dihydroxy benzoic acid and cinnamic acid are not detected in any of pollen samples. Pollen grains phytochemical screening beside their morphology may have a prospect value in the characterization of the studied Saudi Arabian male date palm cultivars. These results revealed that date palm pollen has antioxidant properties that could play a major role in human health and could provide dietary alternatives. | Comparative study of pollen grains morphology and phytochemical constituents of some saudi arabian date palm (Phoenix dactylifera L.) Cultivars

• Hoá học
• Antioxidant activity
• Pollen grains
• Saudi arabian date palm
• Pollen grains morphology
• Phytochemical constituents
• Investigation of antioxidant activity
• The hydrolysate derived
• Natural antioxidant ingredient
• L
• FG for application
• Ferric reducing antioxidant potential
• BMC Genomics
• Chinese bayberry
• Antioxidant compounds
• Active antioxidant
• Fruit’s antioxidant components
• Salvia tomentosa
• Phenolic composition
• Antioxidant activity of Salvia tomentosa
• Cultivated plants
• The antioxidant activity of Vernonia amygdalina Del
• Central composite design
• Maximum antioxidant activity
• The content of phenolic compounds
• Response surface methodology
• Hyptis Suaveolens (L) poit
• Free radical scavenging activity
• Natural antioxidant
• Indicated that the ethanolic extract
• Antioxidant enzymes
• Temperature induction response
• Temperature enhances antioxidant enzyme activity
• Enzyme activity
• Osmoprotectants in tomato
• Tylophora indica
• Phytochemical analysis
• Qualitative analysis
• Antioxidant activity of Tylophora indica
• RTS beverages
• Carrot based RTS beverages
• Total soluble solids
• Antioxidant activity of carrot
• Green cabbage
• Sulforaphane composition
• Cytotoxic and antioxidant activity
• Crucifer vegetables
• Agricultural science
• Total phenolic and antioxidant activity
• Different Mentha spicata
• M longifolia accessions
• Phenolic compound
• Momordica charantia
• Antimicrobial ability
• Bitter melon
• In vitro antibacterial activity
• Biochemical compositions
• Ophiocordyceps sobolifera
• Extraction temperature
• In vitro antioxidant activities
• Extraction temperatures on in vitro antioxidant activities
• Terminalia catappa
• Colocasia esculenta
• Antimicrobial activity
• Superoxide anion radical scavenging assay
• Ferric reducing antioxidant power
• Essential oil
• Antioxidant properties
• α tocopherol equivalent
• Acetes japonicus
• Enzymatic hydrolysis
• Antioxidant potential
• Enzyme type
• Antioxidant and plant water relation traits
• Plant water relation traits
• Water relation traits
• Restricted irrigation
• Antioxidant activity of apigenin
• Nevadensin using DFT
• Promising antioxidant agent
• Studied compounds with atom numbering
• FMO analysis
• Ganoderma lucidum
• Ultrasound assisted enzymatic extraction
• Antioxidant activities
• Antioxidant activity of the extract
• Red ganoderma lucidum
• Teter leaf
• Antioxidant and RSM
• Antioxidant activity teter leaves extract
• Ratio material
• Solvent using response surface methodology
• S cochinchinensis leaves
• Total polyphenols content
• Pearson’s method
• Rhizophora stylosa
• Endophytic bacteria
• Mangrove plant Rhizophora stylosa
• Activity and total
• Horsegram varieties
• Total polyphenol content
• Vitro protein digestibility
• BMC Chemistry
• Thioxoquinazolin 4(3H) one
• Anticancer activity
• Anticonvulsant activity
• Molecular docking
• Rice bran
• Antiproliferative activity
• Black rice bran
• Evaluation of antioxidant
• Syzygium cumin leaves
• Antimicrobial activity of Syzygium cumin leaves
• Ethyl acetate extracts