摘要
【目的】在芝麻种子中建立一种芝麻素高效提取检测技术,并将该技术应用于芝麻素含量变异检测和筛选高芝麻素含量的优异种质,为推动高芝麻素基础研究和育种奠定基础。【方法】以芝麻种子为原料,进行钢珠直径、粉碎时间、捣碎振幅和种子量等单因素试验,以80%的乙醇为提取溶剂,利用超声波的机械破碎和空化作用,对芝麻进行萃取;结合高效液相色谱法(HPLC)测定芝麻种子中的芝麻素含量;在单因素试验的基础上,进行Box-Behnken四因素三水平的响应面试验,建立芝麻素含量为响应值的二次多项式回归方程模型,并绘制响应曲面图和等高线图,分析影响芝麻素含量的主要因素及各因素间的交互作用,确定芝麻素含量检测的最优提取条件。利用该参数条件对1151份地方资源和创新种质进行芝麻素含量的测定,筛选芝麻素含量≥9 g·kg^(-1)的高芝麻素种质,并送至农业农村部油料及制品质量监督检验测试中心进行鉴定。【结果】建立的回归模型极显著(P<0.05),失拟项不显著(P=0.1768),该模型拟合程度较好,可用于分析和预测芝麻素含量。4个因素对芝麻素含量影响的大小依次为:捣碎振幅>钢珠直径>粉碎时间>种子量,其中,捣碎振幅与钢珠直径两因素之间的交互作用显著,捣碎振幅与粉碎时间的交互作用接近显著水平;超声波辅助提取芝麻素的最佳条件为:钢珠直径6.5 mm、粉碎时间225 s、捣碎振幅1335 r/min、种子量0.20 g,在此条件下提取的芝麻素含量为4.601 g·kg^(-1),与模型预测值4.633 g·kg^(-1)高度相符;从1151份地方资源和创新种质中筛选出15份高芝麻素含量种质,最高含量为14.36 g·kg^(-1),平均含量为12.35 g·kg^(-1)。【结论】建立了芝麻素高效提取技术,与传统方法相比,本方法只需0.2 g种子就能提取芝麻素,不仅提高了芝麻素的提取效率,还降低了样品的损耗,操作简单,能够精确检�
【Objective】Establish an efficient extraction and detection technology for sesamin content evaluation in sesame seeds,then apply it to examine sesamin content variation and identify high-sesamin content materials in sesame germplasm,which will lay the foundation for advancing basic research and breeding of sesame with high sesamin content.【Method】Using sesame seeds as raw materials,the single factor tests,including diameters of steel balls,crushing time,crushing amplitude,and seeds weight,were investigated.The seeds were extracted with 80%ethanol via ultrasonic mechanical crushing and cavitation,and the sesamin content was determined by High Performance Liquid Chromatography(HPLC).Based on the Box-Behnken center combined test design principle,we carried out the response surface test with four factors and three levels and established the quadratic polynomial regression equation model with sesamin content as response value.We drew the response surface diagram and contour diagram and determined the main factors affecting sesamin content and the interaction between factors.Finally,the optimal extraction conditions of sesamin were determined,and 1151 local resources and innovative germplasm were analyzed.The accessions with high sesamin content≥9 g·kg^(-1)were selected and identified at the Oil and Product Quality Supervision and Testing Center of the Ministry of Agriculture and Rural Affairs.【Result】The regression model established in this experiment was extremely significant(P<0.05),and the lack of fit was insignificant(P=0.1768).The model had a good fitting degree and could be used to predict sesamin content.The influence of the four factors on sesamin content was as follows:crusher amplitude>diameters of steel balls>crushing time>seeds weight.The interaction between the crusher amplitude and diameters of steel balls was significant,while that between crusher amplitude and crushing time was close to the significance level.The optimal conditions for ultrasonic-assisted extraction of sesamin were as fol
作者
钟艳平
师立松
周瑢
高媛
何延庆
方圣
张秀荣
王林海
吴自明
张艳欣
ZHONG YanPing;SHI LiSong;ZHOU Rong;GAO Yuan;HE YanQing;FANG Sheng;ZHANG XiuRong;WANG LinHai;WU ZiMing;ZHANG YanXin(Oil Crops Research Institute,Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan 430062;Key Laboratory of Crop Physiology,Ecology and Genetics Breeding,Ministry of Education,Jiangxi Agricultural University,Nanchang 330045)
出处
《中国农业科学》
CAS
CSCD
北大核心
2022年第11期2109-2120,共12页
Scientia Agricultura Sinica
基金
农业农村部芝麻种质资源精准鉴定项目(19211121)
农业农村部农作物种质资源保护与利用专项(19210163)
科技部、财政部国家科技基础条件平台项目(NCGRC-2021-016)
中国农业科学院科技创新工程(CAAS-ASTIP-2016-OCRI)
江西省现代农业产业技术体系建设专项(JXARS-18)。
关键词
芝麻素
高效
提取工艺
响应面分析法
种质筛选
sesamin
high efficient
extraction process
response surface analysis methodology
screening germplasm
