Profiling the In vitro starch contents of some underutilized tubers flours as affected by some pre-processing operations.

Rachel Nnenna Orji *

Department of Food Technology, Akanu Ibiam Federal Polytechnic Unwana, Afikpo, Ebonyi State, Nigeria, P.O. Box 1007.
 
Research Article
World Journal of Advanced Research and Reviews, 2023, 20(03), 1387–1394
Article DOI: 10.30574/wjarr.2023.20.3.2568
 
Publication history: 
Received on 06 November 2023; revised on 18 December 2023; accepted on 20 December 2023
 
Abstract: 
Aerial yam(Dioscorea bulbifera),cocoyam(Xanthosoma robustum) and water yam (Dioscorea alata) were analyzed for their starch contents using in vitro method after subjecting them to four pre-processing operations of boiling, sprouting, frying, roasting and a set was left untreated. Boiled Cocoyam (Xanthosoma robustum) was significantly(p<0.05)different in total starch contents(58.50%) and rapidly digestible starch (55.88%) when compared to all the samples while among the processing operations, boiling as a treatment was significantly (p<0.05) different from sprouting, frying, roasting as well as the untreated.
 
Keywords: 
Yam species; Starch contents; Digestible starch; Pre-processing operations; Dioscorea bulbifera; Xanthosoma robustum; Dioscorea alata; Untreated yam flour.
 
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