Change of total anthocyanins content and kernel lightness according ripening days after silking date in black waxy corn

This study was carried out to evaluate changes of total anthocyanins content and kernel lightness according ripening days after silking date in black waxy corn. Black waxy corns have pericarps colored black and Black pericarps contain anthocyanins. Anthocyanins relate to antioxidant activities. Thirty black waxy corn inbred lines were planted at upland crop fields of National Institute of Crop Science in Korea, 2009. They were evaluated total anthocyanins content, respectively. Base on these results, they were classified by 3 groups. Three groups were mutually crossed. Their F1 seeds were planted in upland crop fields of National Institute of Crop Science in Korea, 2010. They were classified 8 crossing groups by crossing combinations. These crossing groups were harvested at 19 days, 21 days, 23 days and 25 days after silking date, respectively. And their products were evaluated by total anthocyanins content and lightness. As increasing of harvest days, total anthocyanins content were increased, but lightness was not. The total anthocyanins content and lightness were analyzed correlation by SAS Enterprise Guide 4.2. They have negative correlation and coefficient of determinant (R2) was 0.7151.

Keywords: black, waxy, corn, anthocyanin, days after silking date

References: 1. Lopez Martinez et al. (2009) Food Science and Technology 42: 1187–1192