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Yam — Ingredient · Foodgeist
Ingredient
Yam
Yam is the common name for some plant species in the genus Dioscorea (family Dioscoreaceae) that form edible tubers. These are perennial herbaceous vines cultivated for the consumption of their starchy tubers in Africa, Asia, Latin America, the Caribbean and Oceania. There are ma
Cook with Yam
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Yam is the common name for some plant species in the genus Dioscorea (family Dioscoreaceae) that form edible tubers. These are perennial herbaceous vines cultivated for the consumption of their starchy tubers in Africa, Asia, Latin America, the Caribbean and Oceania. There are many cultivars of yam. Although some varieties of sweet potato (Ipomoea batatas) are also called yam in parts of the United States and Canada, it is not part of the family Dioscoreaceae; rather it is in the morning glory family Convolvulaceae.
“it was noticed, however, that samples purchased from the markets showed higher contamination levels than those freshly produced, especially regarding bacterial and aflatoxins presence.”
“Nonetheless, post-processing steps such as storage and handling at the point of sale also contributed for chemical contamination, such as aflatoxin and heavy metals.”
What science says
cultural origin
“In this study, we analysed the impact of ennoblement of spontaneous yams, an original traditional farmers' practice, on the genetic diversity of yam (Dioscorea sp.) in Benin.”
yam ennoblement→is practiced by→traditional farmers in Benin
“The effect of brewers spent grain (BSG) addition (5–15% level), barrel temperature (100–110C) and screw speed (100–140 rpm) on proximate composition and functional properties of extruded yam starch-based pasta were studied. Based on the desirability concept, the optimum conditions for processing of extrudates were found to be a barrel temperature of 110C, screw speed of 121.47 rpm and BSG level of 9.58%.”
extrusion parameters→affect→properties of extruded yam starch-based pasta
“In groups of rats given AOM and costunolide and those treated with AOM and soyasaponin A2, both ornithine decarboxylase activity and polyamine concentration of the colonic mucosal tissue were significantly decreased compared with those in rats given AOM alone”
“In groups of rats given AOM and costunolide and those treated with AOM and soyasaponin A2, both ornithine decarboxylase activity and polyamine concentration of the colonic mucosal tissue were significantly decreased compared with those in rats given AOM alone”