%0 Journal Article %T Optimization of solvent extraction conditions for total carotenoids in rapeseed using response surface methodology %A Ling Wang %A Yun Liu %J Natural Science %P 23-29 %@ 2150-4105 %D 2009 %I Scientific Research Publishing %R 10.4236/ns.2009.11005 %X The optimum total carotenoids (TC) extraction from rapeseed with solvent extraction method by UV-visible spectrophotometer determination was investigated by using response surface methodology (RSM). Extraction duration, re-peated extraction cycles, solvent-solid ratio and extraction temperature were assumed to be the most important factors affecting solvent extrac-tion for the determination of TC. Optimum sol-vent extraction conditions for maximizing the determination of TC were: extraction duration 7.3h, repeated extraction three times, ratio of solvent-solid (v/w, mL/mg) 29:1, extraction temperature 42°C. Under the optimal conditions, the yield of TC was up to 4.79 mg /100g. The model had a satisfactory coefficient of R2 (= 0.912) and verified experimentally. The results showed that the conditions were mild and use-ful for maximizing a quantitative spectropho-tometer determination of TC in rapeseed. %K Carotenoids %K Optimization %K Solvent Extraction %K Response Surface Methodology %K Rapeseed %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=500