{"title":"微波预处理有利于油茶种子的油脂释放,降低油茶种子的脂肪酶活性","authors":"Suxi Wu, Yun Chen, Miao Xiong, Xiaomiao Han, Yongjian Cai, Zhe Dong, Paul Kanambaye, Dongrong Zhou","doi":"10.1016/j.foodres.2025.116885","DOIUrl":null,"url":null,"abstract":"<div><div>Heat pretreatment plays a crucial role in enhancing both oil yield and quality during <em>Camellia oleifera</em> seed processing. This present study investigates the effects of four heat pretreatments on the microstructure and physicochemical properties of <em>Camellia oleifera</em> seed. All pretreatments altered the appearance and compositions of the seeds. Notably, microwave significantly increased free lipid content (36.99 %), and achieved the highest oil extraction efficiency (90.99 %) with the lowest lipase activity (20.24 U). Furthermore, the potential enhancement mechanism in oil yield of microwave was proposed. Microwave might have disrupted cellular structures, lowered moisture content and lipase activity, improved seed solubility and swelling power and modified the hydrogen bonding network of lipid complexes, which facilitated oil-protein and starch complex disintegration and oil separation. Therefore, microwave proved to be a promising technique for improving oil yield and enhancing the nutritional and functional properties of <em>Camellia oleifera</em> seed oil, providing valuable insights for high-quality oil production.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"218 ","pages":"Article 116885"},"PeriodicalIF":7.0000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microwave pretreatment of Camellia oleifera seed enhances the oil releasing and decreases lipase activity in wet extraction technology\",\"authors\":\"Suxi Wu, Yun Chen, Miao Xiong, Xiaomiao Han, Yongjian Cai, Zhe Dong, Paul Kanambaye, Dongrong Zhou\",\"doi\":\"10.1016/j.foodres.2025.116885\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Heat pretreatment plays a crucial role in enhancing both oil yield and quality during <em>Camellia oleifera</em> seed processing. This present study investigates the effects of four heat pretreatments on the microstructure and physicochemical properties of <em>Camellia oleifera</em> seed. All pretreatments altered the appearance and compositions of the seeds. Notably, microwave significantly increased free lipid content (36.99 %), and achieved the highest oil extraction efficiency (90.99 %) with the lowest lipase activity (20.24 U). Furthermore, the potential enhancement mechanism in oil yield of microwave was proposed. Microwave might have disrupted cellular structures, lowered moisture content and lipase activity, improved seed solubility and swelling power and modified the hydrogen bonding network of lipid complexes, which facilitated oil-protein and starch complex disintegration and oil separation. Therefore, microwave proved to be a promising technique for improving oil yield and enhancing the nutritional and functional properties of <em>Camellia oleifera</em> seed oil, providing valuable insights for high-quality oil production.</div></div>\",\"PeriodicalId\":323,\"journal\":{\"name\":\"Food Research International\",\"volume\":\"218 \",\"pages\":\"Article 116885\"},\"PeriodicalIF\":7.0000,\"publicationDate\":\"2025-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Food Research International\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0963996925012232\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"FOOD SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Research International","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0963996925012232","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Microwave pretreatment of Camellia oleifera seed enhances the oil releasing and decreases lipase activity in wet extraction technology
Heat pretreatment plays a crucial role in enhancing both oil yield and quality during Camellia oleifera seed processing. This present study investigates the effects of four heat pretreatments on the microstructure and physicochemical properties of Camellia oleifera seed. All pretreatments altered the appearance and compositions of the seeds. Notably, microwave significantly increased free lipid content (36.99 %), and achieved the highest oil extraction efficiency (90.99 %) with the lowest lipase activity (20.24 U). Furthermore, the potential enhancement mechanism in oil yield of microwave was proposed. Microwave might have disrupted cellular structures, lowered moisture content and lipase activity, improved seed solubility and swelling power and modified the hydrogen bonding network of lipid complexes, which facilitated oil-protein and starch complex disintegration and oil separation. Therefore, microwave proved to be a promising technique for improving oil yield and enhancing the nutritional and functional properties of Camellia oleifera seed oil, providing valuable insights for high-quality oil production.
期刊介绍:
Food Research International serves as a rapid dissemination platform for significant and impactful research in food science, technology, engineering, and nutrition. The journal focuses on publishing novel, high-quality, and high-impact review papers, original research papers, and letters to the editors across various disciplines in the science and technology of food. Additionally, it follows a policy of publishing special issues on topical and emergent subjects in food research or related areas. Selected, peer-reviewed papers from scientific meetings, workshops, and conferences on the science, technology, and engineering of foods are also featured in special issues.