Carotenoid Composition and Changes in Sweet and Field Corn (Zea mays) During Kernel Development

文献类型： 外文期刊

第一作者： Song, Jiangfeng

作者： Song, Jiangfeng;Li, Dajing;Liu, Niying;Liu, Chunquan;He, Meijuan;Zhang, Yuan

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期刊名称：CEREAL CHEMISTRY （ 影响因子：1.984； 五年影响因子：2.043 ）

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收录情况： SCI

摘要： Kernels of two carotenoid-rich cultivars, sweet corn Jingtian 5 and field corn Suyu 29, were compared in terms of carotenoid composition during corn kernel development. The results showed that eight principal carotenoids were characterized by HPLC with diode array detection and atmospheric pressure chemical ionization tandem mass spectrometry with a C30 column. During kernel development, there was a similar trend in the change of total carotenoids for both corn cultivars, and the variation of individual carotenoids was also somewhat similar; violaxanthin, zeaxanthin, lutein, a-cryptoxanthin, and beta-cryptoxanthin contents had upward trends, whereas neoxanthin content declined all the time, and a-carotene and beta-carotene had no significant changes. However, the highest levels of the major carotenoids lutein (41.61 mu g/g, dry weight) and zeaxanthin (39.59 mu g/g, dry weight) obtained in field corn Suyu 29 during the milk stage were higher than those in sweet corn Jingtian 5, whereas the other individual carotenoid levels were significantly lower. Compared with the grain color, highly significant positive correlations were observed between zeaxanthin, lutein, and violaxanthin contents and deeper yellow/orange coloration indicators for field corn Suyu 29, but these relationships were weak for sweet corn Jingtian 5. Potential genetic variation might exist for carotenoid accumulation in sweet and field corn kernels.

分类号： S13

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