Title
Effects of flooding cultivation on the composition and quality of taro (Colocasia esculenta cv. Daikichi)
Author
Hiroki Yamanouchi, Kanae Tokimura, Nobuyuki Miura, Kazuhiro Ikezawa, Michio Onjo, Yuji Minami, Katsuko Kajiya
Year
2021
Journal
Science of Food and Agriculture
Abstract
Taro (Colocasia esculenta cv. Daikichi) is believed to be one of the earliest cultivated tuber crops and it is a staple food in many parts of the world. The mother corm and side cormels (daughter and granddaughter tubers) form the major consumed parts; however, the former is rarely preferred. Taro is mainly cultivated using either unflooded or flooding cultivation, under dryland-rainfed and wetland-irrigated conditions, respectively. Although flooding cultivation has several advantages, such as lower risk of diseases, weeds, and insect pests, contributing to increased tuber yield, its effects on the quality characteristics of the tubers are largely unknown. In this study, the effects of controlled flooding cultivation on the quality of mother corm and side cormels were investigated. Their taste, color, physical properties, antioxidant activity, and starch, oxalic acid, nitrate ion, arabinogalactan (AG)/AG protein (AGP), γ-aminobutyric acid (GABA), and total polyphenol content was compared with those under unflooded cultivation.
Instrument
LC-2000
Keywords
GABA, AGP,