粮油食品科技2025，Vol.33Issue(2)：43-52,10.DOI:10.16210/j.cnki.1007-7561.2025.02.007
基于γ-氨基丁酸富化需求的稻谷品种筛选
Screening of Germinated Rice Variety with High γ-aminobutyric Acid Content
摘要
Abstract
To scientifically and systematically screen rice varieties with high γ-aminobutyric acid(GABA)content,16 rice varieties from various regions of China were subjected to heating and humidifying treatment to enhance γ-aminobutyric acid(GABA)content.By determining parameters including glutamic acid(Glu)content,glutamic acid decarboxylase(GAD)activity,germination rate and water absorption rate,rice varieties suitable for GABA enrichment were screened.The results showed that significant regional and varietal differences in GABA enrichment efficiency using the heating and humidification method on rice grains.And the GABA content of japonica rice was higher than that of indica rice both before and after enrichment with Jiangsu japonica rice exhibiting the highest GABA increment.The GABA content and increment of Nanjing 3908 and Nanjing 46 after enrichment were both at relatively high levels.The GAD activity after enrichment can be used as an indicator for screening rice varieties with high GABA.Germination rate and water absorption rate(＜8 h)can be used as auxiliary predictors of GABA enrichment in rice grains.In conclusion,using GAD activity as a reference index,combined with parameters such as germination rate and water absorption rate of rice grains,allows for the effective screening of rice varieties suitable for GABA enrichment.关键词
加温加湿法/γ-氨基丁酸/谷氨酸脱羧酶/稻谷Key words
heating and humidifying method/γ-aminobutyric acid/glutamic acid decarboxylase/rice分类
农业科技引用本文复制引用
吴其飞,张子阳,米行琼,刘淑一,徐斌..基于γ-氨基丁酸富化需求的稻谷品种筛选[J].粮油食品科技,2025,33(2):43-52,10.基金项目
苏州市关键核心技术攻关(农业、社会发展)项目"优质稻米锁鲜仓储与营养化加工关键技术研究及应用"(SNG2023020) （农业、社会发展）
扬州市市级计划——现代农业"发芽糙米品质提升关键技术研究与产品开发"(YZ2022040) Suzhou Key Core Technology Research(Agriculture,Social Development)Project"Research and Application of Key Technologies for Freshness Preservation in Storage and Nutritional Processing of High-Quality Rice"(No.SNG2023020) （YZ2022040）
Yangzhou Municipal Programme-Modern Agriculture"Research and Product Development on Key Technologies for Improving the Quality of Germinated Brown Rice"(No.YZ2022040) （No.YZ2022040）
