{"title":"甘薯皮中多酚提取工艺的优化:单因素与化学计量法对比","authors":"Oseni Kadiri, Charles Akan, S. Gbadamosi","doi":"10.57046/dmwd7663","DOIUrl":null,"url":null,"abstract":"The study was aimed at optimizing the extraction conditions of phenolic compounds from an orange-fleshed cultivar of sweet potato peel using a single factor vis-a-vis chemometric experimental approach. The effectiveness of extracting antioxidants compounds using an aqueous medium (water) was compared to organic solvents. Water-to-peel, time of extraction and extraction temperature was established to have significant effects on the total antioxidant and scavenging activities. Optimal extraction variables of 60 ºC for 20 minutes, at a solvent-to-peel powder ratio of 100:7.5 mL/g was derived for the process. Approximately 157.0 g of peel powder was obtained from a kilogram of the dried potato peel using a simple but scalable method. The polyphenol isolate contained 31.39 % polyphenols and compared significant well with vitamin C and butylated hydroxytoluene (BHT) in terms of its antioxidant activities. In summary, this study used an aqueous medium as its extracting solvent, which offers a great prospect for future use in the extraction and purification of bioactive compounds from plant materials.","PeriodicalId":312312,"journal":{"name":"Proceedings of the Nigerian Academy of Science","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimization of polyphenols extraction from sweet potato peel: single factor versus chemometrics approach\",\"authors\":\"Oseni Kadiri, Charles Akan, S. Gbadamosi\",\"doi\":\"10.57046/dmwd7663\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The study was aimed at optimizing the extraction conditions of phenolic compounds from an orange-fleshed cultivar of sweet potato peel using a single factor vis-a-vis chemometric experimental approach. The effectiveness of extracting antioxidants compounds using an aqueous medium (water) was compared to organic solvents. Water-to-peel, time of extraction and extraction temperature was established to have significant effects on the total antioxidant and scavenging activities. Optimal extraction variables of 60 ºC for 20 minutes, at a solvent-to-peel powder ratio of 100:7.5 mL/g was derived for the process. Approximately 157.0 g of peel powder was obtained from a kilogram of the dried potato peel using a simple but scalable method. The polyphenol isolate contained 31.39 % polyphenols and compared significant well with vitamin C and butylated hydroxytoluene (BHT) in terms of its antioxidant activities. In summary, this study used an aqueous medium as its extracting solvent, which offers a great prospect for future use in the extraction and purification of bioactive compounds from plant materials.\",\"PeriodicalId\":312312,\"journal\":{\"name\":\"Proceedings of the Nigerian Academy of Science\",\"volume\":\"45 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Nigerian Academy of Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.57046/dmwd7663\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Nigerian Academy of Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.57046/dmwd7663","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optimization of polyphenols extraction from sweet potato peel: single factor versus chemometrics approach
The study was aimed at optimizing the extraction conditions of phenolic compounds from an orange-fleshed cultivar of sweet potato peel using a single factor vis-a-vis chemometric experimental approach. The effectiveness of extracting antioxidants compounds using an aqueous medium (water) was compared to organic solvents. Water-to-peel, time of extraction and extraction temperature was established to have significant effects on the total antioxidant and scavenging activities. Optimal extraction variables of 60 ºC for 20 minutes, at a solvent-to-peel powder ratio of 100:7.5 mL/g was derived for the process. Approximately 157.0 g of peel powder was obtained from a kilogram of the dried potato peel using a simple but scalable method. The polyphenol isolate contained 31.39 % polyphenols and compared significant well with vitamin C and butylated hydroxytoluene (BHT) in terms of its antioxidant activities. In summary, this study used an aqueous medium as its extracting solvent, which offers a great prospect for future use in the extraction and purification of bioactive compounds from plant materials.