交变电场对储藏中毛油氧化及酚酸的影响  

Effects of Alternating Electric Field on Crude Oil Oxidation and Phenolic Acid in Storage

作　　者：邹真 王成龙 庞林江[1] 路兴花[1] 尹丽卿 Zou Zhen;Wang Chenglong;Pang Linjiang;Lu Xinghua;Yin Liqing(School of Food and Health,Zhejiang A&F University,Hangzhou 311300)

机构地区：[1]浙江农林大学食品与健康学院,杭州311300

出　　处：《中国粮油学报》2024年第5期29-36,共8页Journal of the Chinese Cereals and Oils Association

基　　金：浙江省科技厅重点研发计划项目(2020C02018)。

摘　　要：为探索交变电场处理对食用毛油氧化的影响规律以及潜在的内在因素,采用交变电场处理大豆和菜籽毛油,研究其储藏期间的主要酚酸含量变化及其与氧化特征的关系。结果表明,与对照相比,交变电场处理可显著抑制油脂过氧化值(POV)升高,减缓氧化;在储藏期间电场处理大豆和菜籽毛油的主要酚酸质量显著降低了20.1%和25.2%;大豆毛油中对羟基苯甲酸、丁香酸、香草醛和芥子酸质量分别降低了18.4%、6.5%、46.8%和21.4%,菜籽毛油中对羟基苯甲酸、丁香酸、香草醛和芥子酸质量分别降低了56.0%、42.5%、3.0%和23.6%。对照组大豆和菜籽毛油POV与各酚酸组分含量具有不同程度的正相关,而电场处理几乎相反,尤其是大豆毛油POV与芥子酸和香草醛含量呈显著负相关,菜籽毛油POV与芥子酸含量呈极显著负相关。交变电场处理促进了毛油中酚酸的消耗,延缓了油脂的氧化。To explore the effect of alternating electric field treatment on the oxidation of edible crude oils and the potential factors,crude soybean and rapeseed oils were treated using the alternating electric field,investigating changes in major phenolic acid content during storage and the relationship between oxidation characteristics.The results indicated that alternating electric field treatment could significantly inhibit the increase of peroxide value(POV)and retard oxidation.Compared with the control group,the total phenolic acids of soybean and rapeseed oil in the electric field treatment group were significantly reduced by 20.1%and 25.2%during storage;the p-hydroxybenzoic acid,syringic acid,vanillin and sinapic acid in crude soybean oil significantly reduced by 18.4%、6.3%、46.8%and 21.4%,respectively,and crude rapeseed oil decreased by 56.0%、42.5%、2.9%and 23.6%,respectively,during storage.In the control group,the POV of soybean and rapeseed crude oil was positively correlated with the content of phenolic acid components to different degrees,while the electric field treatment was almost the opposite,especially crude soybean oil POV was significantly negatively correlated with the content of sinapic acid and vanillin,while there was a highly significantly negative correlation with the contents of sinapic acid in crude rapeseed oil.In summary,alternating electric field treatment promoted the consumption of phenolic acid in crude oil and delayed the oxidation of oil.

关 键 词：食用毛油 储藏 交变电场 酚酸 油脂氧化 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程]