摘要
考察不同二氧化硅性能差异,对3种二氧化硅材料(S655、R92和R40F)进行表征,并对其在浓香菜籽油低温吸附精炼中的应用进行研究。结果表明,3种二氧化硅均具有疏松多孔结构,但粒径分布、比表面积、孔容和孔径大小呈显著差异。在添加量1.0%、45℃吸附反应30 min条件下,S655、R92和R40F二氧化硅对浓香菜籽油脱磷率分别为90.3%、99.6%和88.5%,亮度分别提高49.9%、52.5%和53.9%,红度值分别降低31.5%、23.4%和37.8%,黄度值分别提高17.3%、20.0%和20.6%,对甾醇保留率均较高(97.1%以上),对脱酸率、脂肪酸组成和生育酚含量的影响无显著差异(P>0.05)。而R92对浓香菜籽油总酚和canolol保留率均最高(98.1%和99.4%)。采用3种二氧化硅精炼后,浓香菜籽油中硫苷降解产物、吡嗪类、醛类、酮类等含量均显著增加。
Three kinds of silicon dioxide including S655,R92 and R40F were characterized,and their application in lowtemperature adsorption refining of fragrant rapeseed oil was studied.The results showed that all three kinds of silicon dioxide had a loose porous structure,but the particle size distribution,specific surface area,pore volume and pore size were obviously different.After being treated with 1.0%silicon dioxide at 45℃for 30 min,the dephosphorization rates of rapeseed oil by S655,R92 and R40F were 90.3%,99.6%and 88.5%,the lightness increased by 49.9%,52.5%and 53.9%,the redness decreased by 31.5%,23.4%and 37.8%,the yellowness increased by 17.3%,20.0%and 20.6%,respectively.Meanwhile,the retention rate of sterols(above 97.1%)was high,and there were no significant differences in deacidification rate,fatty acid composition or tocopherol retention rate among the three treatment groups.The highest retention rates of total phenol and canolol(98.1%and 99.4%)were found in the samples treated with R92.The contents of glucosinolate degradation products,pyrazines,aldehydes and ketones in fragrant rapeseed oil all increased significantly after refining with the three kinds of silicon dioxide.
作者
王未君
杨博
李文林
马旋
刘昌盛
WANG Weijun;YANG Bo;LI Wenlin;MA Xuan;LIU Changsheng(Oil Crops and Lipids Process Technology National&Local Joint Engineering Laboratory,Key Laboratory of Oilseeds Processing,Ministry of Agriculture and Rural Affairs,Hubei Key Laboratory of Lipid Chemistry and Nutrition,Oil Crops Research Institute,Chinese Academy of Agricultural Sciences,Wuhan 430062,China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2023年第16期1-7,共7页
Food Science
基金
国家自然科学基金联合基金项目(U21A20274)
现代农业产业技术体系建设专项(CARS-12)
中国农业科学院科技创新工程项目(CAAS-ASTIP-2016-OCRI)。
关键词
不同种类二氧化硅
表征
浓香菜籽油
低温吸附精炼
different kinds of silicon dioxide
characterization
fragrant rapeseed oil
low-temperature adsorption refining
