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J. Agric. Food Chem.,：**成分大大提高的“紫玉米”
来源 Aging Cell
J. Agric. Food Chem.,：**成分大大提高的“紫玉米”
据报道，所含**成分是现在玉米10倍的紫色玉米在韩国开发成功。江原大学教授李海翊23日表示：“成功开发出了被广泛认知为**物质的天然食用色素——“花青素”(Anthocyanin)含量是现有玉米10倍以上的品种。”
花青素是黑莓等草莓类中含量很高的色素，它通过抗氧化作用可以减缓癌细胞的成长，并被认为在**、**和提高视力等方面也有效果。
李海翊教授表示：“这次开发的玉米在包裹着玉米粒的叶子部分，每100克就含有17克左右的花青素，从整体上呈现紫色。色素含量是原来开发的玉米的10倍以上。”
上月，英国JohnInne研究所也开发出了花青素含量很高的紫色西红柿，并被评价为“一项提供了仅通过摄入食物就可以减少慢性**可能性的研究”。但李海翊教授表示：“当时开发的西红柿是以人为的方式将其他植物的基因植入的基因改造作物(GMO)，但这次开发的玉米是以传统培育方法取得的成果，因此在这一点上两者还是有区别的。”
此次研究成果被发表在美国化学会于本月13日发行的《农业与食品化学杂志》网络版上。（创赛新闻中心canspecsci.com）

创赛推荐原始出处：
J. Agric. Food Chem., Article ASAPDOI: 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 andBiotechnology, Kangwon National University, Chuncheon 200-701, andGangwondo Agricultural Research and Extension Services, Chuncheon200-150, South Korea
Anthocyanin pigments are extracted from various plants and used fordiverse purposes. The overall goal of this study was to develophigh-anthocyanin corn to enhance the economic efficiency ofanthocyanin production. We determined and compared the anthocyanincontents from the different parts of purple corn in variousbreeding lines. Our results revealed that purple corn produced theanthocyanin pigment throughout the plant, especially high in thehusk and cob regions, although anthocyanin levels variedsignificantly among different plant parts. We analyzed the 295selected lines from the 2006 breeding population, and it showedthat anthocyanin levels of husks ranged from 17.3% to 18.9% of dryweight, roughly 10 times more than the standard current purple cornkernel content, 1.78%. LC?MS/MS analysis demonstrated that the maincomponents of purple corn husk anthocyanin were cyanidinderivatives, and the most prevalent constituents werecyanidin-3-glucoside, cyanidin-3-succinylglucoside andpelargonidin-3-(6′′-malonylglucoside). The results suggested thathigh-anthocyanin corn will boost the purple corn pigment productionfar more than its current level.
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