{"title":"脂肪酶催化有机溶剂中三-(12-羟基硬脂酰)甘油的甲醇分解","authors":"S. Kang, T. Mckeon","doi":"10.4236/aer.2016.44014","DOIUrl":null,"url":null,"abstract":"Castor oil is the source of numerous products and is the only commercial source of the fatty acid ricinoleate, 12-hydroxy-oleate. Hydrogenated castor oil is similarly useful as the source of 12-hydroxy-stearic acid, best known as a component of lithium grease. Mono- and diacylglycerols are derived from castor oil and are useful in development of lubricants and emulsifiers for cosmetics, pharmaceutical and food use. Acylglycerols derived from hydrogenated castor oil may be similarly useful, albeit with different physical and chemical properties. We have evaluated the use of immobilized lipases to generate acylglycerols, using organic solvents to modulate the action of lipase to produce mono- and diacylglycerols, using tri-(12-hydroxy stearoyl)-glycerol as a model for hydrogenated castor oil. The presence of an alkylated oxygen in the solvent appears to be an important factor in supporting lipase activity, with diisopropyl ether providing the best yield of di-(12-hydroxy stearoyl)-glycerol.","PeriodicalId":65616,"journal":{"name":"酶研究进展(英文)","volume":"04 1","pages":"152-157"},"PeriodicalIF":0.0000,"publicationDate":"2016-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Lipase Catalyzed Methanolysis of Tri-(12-Hydroxy Stearoyl)-Glycerol in Organic Solvents\",\"authors\":\"S. Kang, T. Mckeon\",\"doi\":\"10.4236/aer.2016.44014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Castor oil is the source of numerous products and is the only commercial source of the fatty acid ricinoleate, 12-hydroxy-oleate. Hydrogenated castor oil is similarly useful as the source of 12-hydroxy-stearic acid, best known as a component of lithium grease. Mono- and diacylglycerols are derived from castor oil and are useful in development of lubricants and emulsifiers for cosmetics, pharmaceutical and food use. Acylglycerols derived from hydrogenated castor oil may be similarly useful, albeit with different physical and chemical properties. We have evaluated the use of immobilized lipases to generate acylglycerols, using organic solvents to modulate the action of lipase to produce mono- and diacylglycerols, using tri-(12-hydroxy stearoyl)-glycerol as a model for hydrogenated castor oil. The presence of an alkylated oxygen in the solvent appears to be an important factor in supporting lipase activity, with diisopropyl ether providing the best yield of di-(12-hydroxy stearoyl)-glycerol.\",\"PeriodicalId\":65616,\"journal\":{\"name\":\"酶研究进展(英文)\",\"volume\":\"04 1\",\"pages\":\"152-157\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-11-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"酶研究进展(英文)\",\"FirstCategoryId\":\"1089\",\"ListUrlMain\":\"https://doi.org/10.4236/aer.2016.44014\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"酶研究进展(英文)","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.4236/aer.2016.44014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Lipase Catalyzed Methanolysis of Tri-(12-Hydroxy Stearoyl)-Glycerol in Organic Solvents
Castor oil is the source of numerous products and is the only commercial source of the fatty acid ricinoleate, 12-hydroxy-oleate. Hydrogenated castor oil is similarly useful as the source of 12-hydroxy-stearic acid, best known as a component of lithium grease. Mono- and diacylglycerols are derived from castor oil and are useful in development of lubricants and emulsifiers for cosmetics, pharmaceutical and food use. Acylglycerols derived from hydrogenated castor oil may be similarly useful, albeit with different physical and chemical properties. We have evaluated the use of immobilized lipases to generate acylglycerols, using organic solvents to modulate the action of lipase to produce mono- and diacylglycerols, using tri-(12-hydroxy stearoyl)-glycerol as a model for hydrogenated castor oil. The presence of an alkylated oxygen in the solvent appears to be an important factor in supporting lipase activity, with diisopropyl ether providing the best yield of di-(12-hydroxy stearoyl)-glycerol.