| microwave and blanch-assisted drying of white yam (dioscorea rotundata). | the effect of microwave and blanch pretreatments on the drying kinetics and quality of white yam (dioscorea rotundata) was investigated. yam cubes destined for hot air drying at temperatures 70-90°c were predried in a domestic microwave or blanched in hot water for 1-5 min. microwave pretreatment time had a positive significant effect on drying rate but both pretreatments had a negative influence on the ascorbic acid content and the nonenzymatic browning. the optimum drying conditions were a mic ... | 2015 | 26788300 |
| spatial distribution of total phenolic content, enzymatic activities and browning in white yam (dioscorea rotundata) tubers. | browning in raw and processed yams resulting from enzymes, polyphenol oxidase (ppo) and peroxidase (pod), activities is a major limitation to the industrial utilization of dioscorea varieties of yams. two elite cultivars of d. rotundata species were selected to study the spatial distribution of total phenols and enzymes (ppo and pod) activities. the intensities of tissue darkening in fresh yam chips prepared from the tuber sections of cultivars during frozen storage were also studied. total phen ... | 2014 | 25328234 |
| characterization of the dioscorin gene family in dioscorea alata reveals a role in tuber development and environmental response. | dioscorin is one of the major soluble proteins in yam tubers. unlike other well-known plant storage proteins, such as patatin and sporamin, dioscorin is argued for its function as storage proteins, and the molecular mechanisms underlying its expressional complexity are little understood. in this study, we isolated five dioscorin genes from dioscorea alata l., comprising three class a (da-dio1, -3 and -4) and two class b (da-dio2 and -5) isoforms. expressions of all dioscorin genes gradually decr ... | 2017 | 28726732 |
| characterizing genotypic variation in biochemical composition, anti-nutritional and mineral bioavailability of some nigerian yam (dioscorea spp.) land races. | the aim of this study was to characterize 43 genotypes from five yam species [dioscorea rotundata (poir), dioscorea alata (linn), dioscorea bulbifera (linn), dioscorea cayenensis (lam) and dioscorea dumetorum (kunith) pax] which are major land races in nigeria in terms of their chemical composition, nutritional, anti-nutritional and mineral bioavailability. findings showed that there was genotypic variation in terms of chemical composition, mineral profile and bioavailability of the minerals amo ... | 2018 | 29358812 |
| data on microsatellite markers in colletotrichum gloeosporioides s.l., polymorphism levels and diversity range. | colletotrichum gloeosporioides is a species complex of fungi belonging to the glomerellaceae family (ascomycota). it has a global worldwide occurrence and while sometimes described as a plant endophytic commensal, it also often demonstrates pathogenicity on crops and is responsible for anthracnose disease in many cultivated species. thirty-nine polymorphic microsatellites were isolated and their polymorphism levels were determined in 95 strains from guadeloupe (lesser antilles), mostly isolated ... | 2017 | 28540357 |