Results 161 to 170 of about 2,740 (197)
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In Vitro Propagation of Dioscorea alata var. purpurae
Applied Biochemistry and Biotechnology, 2012Dioscorea alata var. purpurae (Indian purple yam) is an important source of diosgenin, a triterpenoid that is used as a raw material in the synthesis of corticosteroid hormones. These drugs are used for the treatment of pharmacological conditions such as arthritis. This paper reports in vitro propagation of explants of various parts of Dioscorea-tuber,
Heena J, Shah, S S, Lele
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Anthocyanins inDioscorea alata L.
Experientia, 1968Trois arthocyanidines acylees ont ete extraits de tubercules d'une variete deDioscorea alata L. des Antilles. Tous 3 sont des glycosides de la cyanidine: le pigment principal est la cyanidine-3-gentiobioside acylee d'acide ferrulique; les 2 autres pigments secondaires sont semblables aux cyanidine-3-glycosides acylees d'acide ferrulique.
M P, Imbert, C, Seaforth
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Antifungal properties of yam (Dioscorea alata) peel extract
Folia Microbiologica, 1996The extraction of natural antifungal compounds from the peels of yam (Dioscorea alata) and the effect of these compounds on both the vegetative and reproductive structures of some yam not pathogens were studied. Four prominent antifungal components were obtained; one of the components was fully characterized and identified as beta-sitosterol.
B I, Aderiye +3 more
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Food and medicinal values of Dioscorea alata L.
2022Food and nutritional security are the major concerns in many countries of the world, and to address this concern, it’s now time to transform food systems for food security, improved nutrition, and affordable healthy diets for all by searching for alternative foods. The underground edible tuber of Dioscorea alata L.
Kaviraj M +5 more
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Two acylated anthocyanins from Dioscorea alata
Phytochemistry, 1990Abstract Two new anthocyanins, cyanidin and peonidin 3-gentiobioside acylated with sinapic acid, have been isolated from the tuber of Dioscorea alata L. ‘King yam’ originated from Sri Lanka. These structures are elucidated by spectroscopic methods.
Yukihiro Shoyama +5 more
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VESSEL MEMBERS IN THE STEM OF DIOSCOREA ALATA L.
Canadian Journal of Botany, 1967The internodal and nodal vessel elements and certain aspects of their ontogeny in the stem of Dioscorea alata L., the common cultivated yam of Gujarat State, India, are described. The internodal vessel elements are unusually long with foraminate, scalariform, reticulate, or rarely simple perforation plates.
J. J. Shah +2 more
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Journal of Food Engineering, 2007
Abstract Effects of pretreatment and drying conditions on yam varieties, namely Dioscorea alata and Dioscorea rotundata , in a fabricated laboratory scale hot air drier at temperature range of 50–80 °C and constant air velocity of 1.5 m 2 /s were investigated. Mass transfer during air-drying of yam slices was described using Fick’s diffusion model.
Kolawole O. Falade +3 more
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Abstract Effects of pretreatment and drying conditions on yam varieties, namely Dioscorea alata and Dioscorea rotundata , in a fabricated laboratory scale hot air drier at temperature range of 50–80 °C and constant air velocity of 1.5 m 2 /s were investigated. Mass transfer during air-drying of yam slices was described using Fick’s diffusion model.
Kolawole O. Falade +3 more
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Occurrence of hexaploid males in Dioscorea alata L.
Euphytica, 1998In the polyploid species Dioscorea alata, earlier studies have shown a prevalence of higher ploidy levels (2n = 60 and 80) restricted among female clones. Cytological screening of a number of rare flowering collections maintained at the CTCRI revealed the occurrence of hexaploids (2n = 60) among male clones for the first time.
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Regeneration and multiplication of Dioscorea alata germplasm maintained in vitro
Plant Cell, Tissue and Organ Culture, 2004The regeneration potential of D.alata L. germplasm preserved in vitro was compared with the micropropagation of fresh material. Nodal cuttings were conserved for 9 months in different treatments based on D-571 culture medium modified, using several variable components (mannitol, benzylaminopurine and activated charcoal).
M. Borges +6 more
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Transformation associated with catecholase in Dioscorea alata during storage
Phytochemistry, 1980Abstract The Michaelis constant of catecholase in 3 cultivars of Dioscorea alata was determined. Oxidative browning was related to the activity of the enzyme in the yams. Inhibition by cysteine was competitive, while 2-mercaptoethanol caused an uncompetitive type of inhibition.
Ishola Adamson, Roland Abigor
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