论文部分内容阅读
通过建立水稻儿茶素、杨梅素、槲皮素和山奈酚含量的HPLC测定方法,研究水稻黄酮类化合物含量及组成差异,为高黄酮水稻种质资源的定向改良提供理论依据。本研究建立了利用HPLC法测定水稻黄酮类化合物含量的测定方法;水稻糙米的黄酮化合物组成主要以儿茶素和山奈酚的形式存在,不含杨梅素和槲皮素,不同品种儿茶素和山奈酚组成比例及含量存在差异;粳稻含有更丰富的儿茶素,有色稻山奈酚和儿茶素含量大于无色稻;糙米中含有较高的黄酮类化合物,而精米中不含或少含黄酮类化合物。
The content and composition of flavonoids in rice were studied by using HPLC method to determine the content of rice catechins, myricetin, quercetin and kaempferol, and provided the theoretical basis for the directional improvement of the high-flavonoid rice germplasm resources. In this study, a method for the determination of the content of flavonoids in rice by HPLC was established. The flavonoids of rice brown rice were mainly in the form of catechin and kaempferol, without myricetin and quercetin, with different varieties of catechins and Kaempferol composition ratio and content differences; japonica rice contains richer catechins, kaempferol and catechin content is greater than colorless rice; brown rice contains high flavonoids, while the polished rice contains less or less Flavonoids.