富含高溶性β-胡萝卜素油脂体系氧化稳定性及降解动力学研究  

Study on Oxidative Stability and Degradation Kinetics of Oil System Rich in Highly Soluble β-carotene

作　　者：孙新怡 孙清瑞[1,2] 李秀波 金丽梅[1,2] Sun Xinyi;Sun Qingrui;Li Xiubo;Jin Limei(College of Food Science,Heilongjiang Bayi Agricultural University ,Daqing 163319;National Coarse Cereals Engineering Research Center ,Daqing 163319)

机构地区：[1]黑龙江八一农垦大学食品学院,大庆163319 [2]国家杂粮工程技术中心,大庆163319

出　　处：《中国粮油学报》2024年第1期141-147,共7页Journal of the Chinese Cereals and Oils Association

基　　金：黑龙江八一农垦大学博士人员科研启动基金项目(XDB-2017-15)。

摘　　要：为研究富含高溶性β-胡萝卜素的油脂体系(β-胡萝卜素总顺式质量分数约40%,其油脂基含量约10 mg/mL)的氧化稳定性及降解规律,在不同储藏温度(-18、4、20、37℃)下,以过氧化值为评价指标,首先通过建立降解动力学方程考察了富含高溶性β-胡萝卜素的不同油脂(大豆油、橄榄油、月见草油、鱼油)的氧化稳定性,同时进一步探讨了橄榄油中β-胡萝卜素及其异构体的储藏氧化降解规律。结果表明:高溶性β-胡萝卜素在不同油脂体系中的抗氧化效果依次为:橄榄油>大豆油>月见草油>鱼油;且在伴随储藏过程中,β-胡萝卜素的降解符合一级动力学模型规律,橄榄油中β-胡萝卜素异构体稳定性高低次序为:All-E>Total Z>13 Z,且随着β-胡萝卜素异构体的氧化降解导致的其总含量减少,橄榄油的过氧化值也不断增大,表明高溶性β-胡萝卜素抗油脂氧化的效能降低。In order to investigate the oxidative stability and degradation patterns of oil systems rich in highly solubleβ-carotene(the total cis-β-carotene accounted for about 40%,and its oil-based content was about 10 mg/mL),peroxide value was used as an evaluation index,the oxidative stability of different oils(soybean oil,olive oil,evening primrose oil and fish oil)rich in highly solubleβ-carotene was first investigated by establishment of degradation kinetic equations at different storage temperatures(-18,4,20,37℃).Storage oxidative degradation patterns ofβ-carotene and its isomers in olive oil were also further investigated.The results indicated that the antioxidant effects of highly solubleβ-carotene in different oil systems were in the following order:olive oil>soybean oil>evening primrose oil>fish oil;the degradation ofβ-carotene during concomitant storage was in accordance with the first-order kinetic model;the order of stability ofβ-carotene isomers in olive oil was:All-E>Total Z>13 Z,and with the total content ofβ-carotene isomers decreased due to oxidative degradation,the peroxide value of olive oil also increased,indicating that the effectiveness of highly solubleβ-carotene against lipid oxidation was reduced.

关 键 词：Β-胡萝卜素 油脂 氧化稳定性 降解动力学 异构体 

分 类 号：TS225[轻工技术与工程—粮食、油脂及植物蛋白工程] TS202[轻工技术与工程—食品科学与工程]