title: In vitro starch digestibility, estimated glycemic index and antioxidant potential of taro (Colocasia esculenta L. Schott) corm.
abstract: The purpose of this study was to determine some functional properties of taro (Colocasia esculenta L. Schott) corm, which can be a good alternative to the other dietary carbohydrate sources with its high starch content. The total phenolic and flavonoid content of taro corm was found as 205±53mgCAE/100g and 61±9mgCAE/100g, respectively. The antioxidant capacity of corm was determined as 452±72mMTEAC/100g and 244±73mMTEAC/100g, by the scavenging activity against ABTS and DPPH radicals, respectively. The free glucose content of corms was less than 1%, whereas the 60% of dry matter was composed of starch. According to the results, the taro corms' starch was highly digestible and higher than the 50% of the starch was composed of rapidly digestible starch (RDS) fractions. The estimated glycemic index (eGI) of taro corm was 63.1±2.5, indicating taro corm as a medium GI food and a good dietary carbohydrate alternative especially for diabetic people.
authors.affiliation: Ege University, Engineering Faculty, Food Engineering Department, 35100 Bornova, Izmir, Turkey. Electronic address: sebnem.simsek@ege.edu.tr.
authors.forename: Sebnem
authors.initials: S
authors.lastname: Simsek
authors.affiliation: Ege University, Engineering Faculty, Food Engineering Department, 35100 Bornova, Izmir, Turkey.
authors.forename: Sedef
authors.initials: S
authors.lastname: Nehir El
mesh_terms: D000975:Antioxidants / Q000494:pharmacology*; D031060:Colocasia / Q000737:chemistry*; D004063:Digestion; D038321:Glycemic Index; D006801:Humans; D010636:Phenols / Q000032:analysis; D013213:Starch / Q000378:metabolism*
chemical_list: D000975:Antioxidants; D010636:Phenols; D013213:Starch
keywords: Estimated glycemic index (eGI); In vitro starch digestibility; Taro (Colocasia esculenta L. Schott)