为了探讨留胚米储藏期间理化品质指标的变化规律,选择6个主栽粳稻品种为试验材料样品进行实验. 在温度25 ℃、相对湿度为65%环境条件下储藏80 d,每10 d取样1次,测定储藏期间留胚米水分含量、蛋白质含量、脂肪酸值、直链淀粉、丙二醛(MDA)含量等理化指标的变化趋势并进行分析. 结果表明,随着时间的延长,留胚米的水分含量、蛋白质、直链淀粉的含量在80 d储藏期内变化很小,脂肪酸值显著增加,MDA含量先增加后降低.%Six main cultivated japonica rice varieties were chosen as the experimental samples to study the change regularity of the physical and chemical index related to the quality of the germ remaining rice during the storage. Samples were stored at 25 ℃, 65%RH for 80 days and the sampling interval was 10 days. Several characteristics, including the content of protein, the fatty acid value, the content of amylose and the content of malondialdehyde were determined and analyzed. The results showed that the moisture content and the content of protein and amylose were changed insignificantly, the fatty acid value increased significantly, and the content of malondiadehyde increased and then decreased.
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