據生物谷報導,所含抗癌成分是現在玉米10倍的紫色玉米在韓國開發成功。江原大學教授李海翊23日表示:「成功開發出了被廣泛認知為抗癌物質的天然食用色素——「花青素」(Anthocyanin)含量是現有玉米10倍以上的品種。」
花青素是黑莓等草莓類中含量很高的色素,它通過抗氧化作用可以減緩癌細胞的成長,並被認為在消炎、殺菌和提高視力等方面也有效果。
李海翊教授表示:「這次開發的玉米在包裹著玉米粒的葉子部分,每100克就含有17克左右的花青素,從整體上呈現紫色。色素含量是原來開發的玉米的10倍以上。」
上月,英國JohnInne研究所也開發出了花青素含量很高的紫色西紅柿,並被評價為「一項提供了僅通過攝入食物就可以減少慢性疾病可能性的研究」。但李海翊教授表示:「當時開發的西紅柿是以人為的方式將其他植物的基因植入的基因改造作物(GMO),但這次開發的玉米是以傳統培育方法取得的成果,因此在這一點上兩者還是有區別的。」
此次研究成果被發表在美國化學會於本月13日發行的《農業與食品化學雜誌》網絡版上。(生物谷Bioon.com)
生物谷推薦原始出處:
J. Agric. Food Chem., Article ASAP DOI: 10.1021/jf802201c
Corn Husk as a Potential Source of Anthocyanins
Chun-Ying Li, Hee-Woong Kim, SeRa Won, Hwang-Kee Min, Ki-Jin Park, Jong-Yeol Park, Mun-Seob Ahn and Hae-Ik Rhee
Department of Biotechnology and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 200-701, and Gangwondo Agricultural Research and Extension Services, Chuncheon 200-150, South Korea
Anthocyanin pigments are extracted from various plants and used for diverse purposes. The overall goal of this study was to develop high-anthocyanin corn to enhance the economic efficiency of anthocyanin production. We determined and compared the anthocyanin contents from the different parts of purple corn in various breeding lines. Our results revealed that purple corn produced the anthocyanin pigment throughout the plant, especially high in the husk and cob regions, although anthocyanin levels varied significantly among different plant parts. We analyzed the 295 selected lines from the 2006 breeding population, and it showed that anthocyanin levels of husks ranged from 17.3% to 18.9% of dry weight, roughly 10 times more than the standard current purple corn kernel content, 1.78%. LC?MS/MS analysis demonstrated that the main components of purple corn husk anthocyanin were cyanidin derivatives, and the most prevalent constituents were cyanidin-3-glucoside, cyanidin-3-succinylglucoside and pelargonidin-3-(6′′-malonylglucoside). The results suggested that high-anthocyanin corn will boost the purple corn pigment production far more than its current level.