米糠蜡添加量对亚麻籽油基油凝胶结构及性质的影响  

Effect of rice bran wax addition on structure and properties of linseed oil-based oleogel

作　　者：王菊花 许佳敏 佟祎鑫 彭淑婷 白万明 白小勇 孔维宝[1,3] WANG Juhua;XU Jiamin;TONG Yixin;PENG Shuting;BAI Wanming;BAI Xiaoyong;KONG Weibao(College of Life Sciences,Northwest Normal University,Lanzhou 730070,China;Gansu Longnan Tianyuan Olive Technology Development Co.,Ltd.,Longnan 746099,Gansu,China;Bioactive Products Engineering Research Center for Gansu Distinctive Plants,Lanzhou 730070,China)

机构地区：[1]西北师范大学生命科学学院,兰州730070 [2]甘肃陇南田园油橄榄科技开发有限公司,甘肃陇南746099 [3]甘肃特色植物有效成分制品工程技术研究中心,兰州730070

出　　处：《中国油脂》2023年第7期17-22,共6页China Oils and Fats

基　　金：国家重点研发计划(2019YFD1002402-03);甘肃省教育厅产业支撑计划项目(2021CYZC-37);科技助力经济2020重点专项项目;2020中央引导地方科技发展专项项目资助;西北师范大学重大科研项目培育计划资助(NWNU-LKZD2022-02)。

摘　　要：为探究亚麻籽油基油凝胶作为替代传统塑性脂肪的潜力,以米糠蜡为凝胶剂,探究不同米糠蜡添加量对亚麻籽油基油凝胶外观形态、微观结构、持油率、理化性质及热力学性质的影响。结果表明:在室温条件下,米糠蜡添加量不小于6%时才会使亚麻籽油凝胶化;随着米糠蜡添加量的增加,油凝胶的结晶网络结构由簇状逐渐转变为针状,结晶密度增大;油凝胶的持油率、酸值以及熔融峰/结晶峰峰值温度均随着米糠蜡添加量的增加而增大;油凝胶的过氧化值随着米糠蜡添加量的增加呈现先增后减的趋势。综上,在亚麻籽油中添加适量的米糠蜡可形成热塑性好、结构稳定、理化性质良好、持油率高的油凝胶。In order to explore the potential of linseed oil-based oleogel as a substitute for traditional plastic fat,using rice bran wax as the gelling agent,the effects of different rice bran wax addition on the appearance,microstructure,oil holding rate,physicochemical properties and thermodynamic properties of linseed oil-based oleogel were investigated.The results showed that at room temperature,linseed oil would be gelled when the addition of rice bran wax was not less than 6%.With the increase of rice bran wax addition,the crystal network structure of oleogel gradually changed from cluster to needle,and the crystal density increased.The oil holding rate,acid value and peak temperature of melting peak/crystallization peak of oleogel increased with the increase of rice bran wax addition.The peroxide value of oleogel increased first and then decreased with the increase of rice bran wax addition.In conclusion,adding appropriate amount of rice bran wax to linseed oil can form an oleogel with good thermoplasticity,stable structure,good physicochemical properties and high oil holding rate.

关 键 词：油凝胶 亚麻籽油 米糠蜡 结构 性质 持油性 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程] TQ645.9[轻工技术与工程—食品科学与工程]