نتایج جستجو برای: negundo hausskn hand
تعداد نتایج: 258239 فیلتر نتایج به سال:
in this study, the essential oil obtained by hydrodistillation of the seeds of vitex pseudo-negundo (verbenaceae), growing wild in sabzevar, khorasan razavi province, iran, were analyzed by gc and gc/ms. the yield of total volatiles was 0.8% (w/w). thirty-seven compounds representing 92.4% of the seed oil were identified. the main components of the oil were hexadecanoic acid (8.0%), elemol (7.0...
The antibacterial activity of the leaves of Vitex negundo was tested against three bacteria Viz., Staphylococcus aureus Escherichia coli and Klebsiella Peumoniae, The fresh aqueous, heated aqueous extract, chloroform and methanolic extract of leaves were used for screening their antibacterial potential. The fresh and aqueous extracts of leaves in various dilutions were found to have antibacteri...
The ability of juvenile Laurus nobilis and Acer negundo plants to refill embolized xylem vessels was tested under conditions of soil drought when xylem sap pressure was substantially negative, thus violating the expected condition that pressure must rise to near atmospheric for refilling. Intact potted plants were dried to a stem water potential ( Y W ) corresponding with approximately 80% loss...
Chemical investigation on the seeds of Vitex negundo has afforded a new furan-containing sesquiterpenoid, negunfurol (1), a new norlabdane-type diterpenoid, negundoal (2), and two new norursane-type triterpenoids, negundonorins A (3) and B (4), together with two know compounds, 3-formyl-4,5-dimethyl-8-oxo-5H-6,7-dihydronaphtho[2,3-b]furan (5) and 3-epi-corosolic acid (6). Their structures and c...
The preliminary phytochemical analysis of eight medicinal plants from Amravati District (MS) was done. The plants were Abutilon indicum L .(Swart)., Euphrbia hirta L., Ficus hispida L. f., Melia azedarch L., Phyllathus reticulatus Poir. ,Psidium guajava L., vitex negundo L., Vitex pinnata L. Qualitative phytochemical analysis of these plants confirms the presence of various phytochemicals like ...
A high performance liquid chromatography coupled with photodiode array detection method was developed for the identification and quantification of p-hydroxy benzoic acid and agnuside in the extracts of Vitex negundo and Vitex trifolia. The separation was achieved using acetonitrile and O-phosphoric acid-water (0.5%, v/v) as the mobile phase in an isocratic elution mode. Mean retention times of ...
BACKGROUND Hypoglycin A, found in seeds of Acer negundo, appears to cause seasonal pasture myopathy (SPM) in North America and is implicated in atypical myopathy (AM) in Europe. Acer negundo is uncommon in Europe. Thus, the potential source of hypoglycin A in Europe is unknown. HYPOTHESIS AND OBJECTIVES We hypothesized that seeds of Acer pseudoplatanus were the source of hypoglycin A in Europ...
چکیده جنس Echinops ازجمله تاکسونهای بزرگ تیرۀ Asteraceae در ایران است که تقریباً در تمام نقاط کشور پراکنش دارد. بیشتر گونههای این جنس انحصاری ایراناند و صرفاً در محدودهای کوچک حضور دارند. این جنس با داشتن کلاپرکهای تکگلی آرایشیافته در گلآذینهای ثانویه که ظاهری کروی دارند بهخوبی از سایر جنسهای تیرۀ مرکبان (Asteraceae) تشخیص داده میشود؛ باوجود مطالعههای ...
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