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首页> 外文期刊>International journal of food properties >Comparison of Carotenoid Composition in Immature and Mature Grains of Corn (Zea Mays L.) Varieties
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Comparison of Carotenoid Composition in Immature and Mature Grains of Corn (Zea Mays L.) Varieties

机译：玉米（Zea Mays L.）品种未成熟和成熟籽粒中类胡萝卜素成分的比较

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The objective of this study was to compare the carotenoid composition of sweet and waxy corn grains at the stage of milk and dough by reversed-phase high-performance liquid chromatography, using a C(30) column, connected to diode array detector and mass spectrometry. In the reverse phase 21 carotenoids were found, the major identified carotenoids were all-trans-lutein, all-trans-zeaxanthin, and all-trans-α- cryptoxanthin. Waxy corn grains showed significantly lower contents for total carotenoids ranging from 1.52 to 3.68 μg/g dry weight in three varieties, whereas sweet corn grains had higher carotenoid contents from 8.42 to 39.71 μg/g dry weight. The composition of the carotenoid pattern was somewhat different compared to literature data; this could be the results of genetic or environmental differences. Taking into account the usage of all-trans lutein and all-trans-zeaxanthin for the prevention of several pathologies, especially the age related macular degeneration, the immature sweet corn (e.g., “Jingtian 5” and “Jingtian 3”) might be interesting sources of a lutein and/or zeaxanthin extract that could add value to an underutilized biomass.
机译：这项研究的目的是使用C（30）色谱柱（连接到二极管阵列检测器和质谱仪）通过反相高效液相色谱法比较牛奶和面团阶段甜和蜡状玉米谷物的类胡萝卜素成分。在反相阶段发现了21种类胡萝卜素，主要鉴定出的类胡萝卜素是全反叶黄素，全反玉米黄质和全反α-隐黄质。在三个品种中，蜡状玉米籽粒的总类胡萝卜素含量显着较低，范围为1.52至3.68μg/ g，而甜玉米籽粒的类胡萝卜素含量较高，为8.42至39.71μg/ g。类胡萝卜素模式的组成与文献数据相比有所不同。这可能是遗传或环境差异的结果。考虑到全反黄体素和全反玉米黄质的使用可预防多种疾病，尤其是与年龄相关的黄斑变性，未成熟的甜玉米（例如“京田5”和“京田3”）可能很有趣叶黄素和/或玉米黄质提取物的来源，可能为未充分利用的生物质增加价值。

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