Physicochemical and Functional Properties of Some Cultivars of Irish Potato and Cassava Starches

摘要

In this study, starches were extracted from two cultivars of local Irish potatos (Solanum tuberosum) and tree cultivars of local Cassava (Manihot esculanta). These starches and a commercial Irish Potato Starch (IPS), where characterized with respect to their physico-chemical and functional properties. Significant differences (p. Potato starch granules exhibited the largest granule size at 10, 50 and 90% diameter compared to those of cassava starches. Potato starches had wider particle size distribution compared to cassava starches. There were apparent differences, between species (Cassava and potatoes) with respect to granule morphology and size. No significant colour difference (p>0.05) was observed between the Sipiera starch cultivars and the Irish potatoes commercial starch.