{"title":"烘焙咖啡豆超临界萃取物中咖啡因的自然沉淀","authors":"D. Prokopchuk, M. Kostenko, O. Pokrovskiy","doi":"10.31044/1684-5811-2020-21-10-452-458","DOIUrl":null,"url":null,"abstract":"An unexpected effect of spontaneous caffeine precipitation from roasted coffee extracts obtained by supercritical fluid extraction was discovered. The effect is observed for various sorts of coffee when extraction pressure is roughly above 40 MPa. Simple centrifugation of such extracts allows obtaining two valuable products,decaffeinated roasted coffee oil and caffeine, which can be used as functional ingredients in food and cosmetics.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":"49 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"SPONTANEOUS PRECIPITATION OF CAFFEINE FROM ROASTED COFFEE BEANS SUPERCRITICAL EXTRACTS\",\"authors\":\"D. Prokopchuk, M. Kostenko, O. Pokrovskiy\",\"doi\":\"10.31044/1684-5811-2020-21-10-452-458\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An unexpected effect of spontaneous caffeine precipitation from roasted coffee extracts obtained by supercritical fluid extraction was discovered. The effect is observed for various sorts of coffee when extraction pressure is roughly above 40 MPa. Simple centrifugation of such extracts allows obtaining two valuable products,decaffeinated roasted coffee oil and caffeine, which can be used as functional ingredients in food and cosmetics.\",\"PeriodicalId\":9863,\"journal\":{\"name\":\"Chemical Engineering\",\"volume\":\"49 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31044/1684-5811-2020-21-10-452-458\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q\",\"JCRName\":\"Chemical Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31044/1684-5811-2020-21-10-452-458","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q","JCRName":"Chemical Engineering","Score":null,"Total":0}
SPONTANEOUS PRECIPITATION OF CAFFEINE FROM ROASTED COFFEE BEANS SUPERCRITICAL EXTRACTS
An unexpected effect of spontaneous caffeine precipitation from roasted coffee extracts obtained by supercritical fluid extraction was discovered. The effect is observed for various sorts of coffee when extraction pressure is roughly above 40 MPa. Simple centrifugation of such extracts allows obtaining two valuable products,decaffeinated roasted coffee oil and caffeine, which can be used as functional ingredients in food and cosmetics.
期刊介绍：
Chemical Engineering is published monthly by Access Intelligence, primarily for chemical engineers and related technical people in the chemical process industries (CPI), as well as at engineering, design and construction companies that serve the CPI. The CPI consist of: chemicals, including petrochemicals; drugs and cosmetics; explosives and ammunition; fats and oils; fertilizers and agricultural chemicals; foods and beverages; leather tanning and finishing; lime and cement; synthetic fibers; metallurgical and metal products; paints and coatings; petroleum refining and coal products; plastics; rubber; soap and detergents; stone, clay, glass and ceramics; wood, pulp, paper and board; other chemically processed products.
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