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| Optimization of extraction of procyanidins from oil-tea camellia seed shell with deep eutectic solvents |
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| DOI： |
| KeyWord:deep eutectic solvents extraction oil-tea camellia seed shell procyanidins orthogonal optimization |
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| Abstract: |
| To promote the high value utilization of by-products from oil-tea camellia seed, procyanidins was extracted from oil-tea camellia seed shell with deep eutectic solvents，the effects of extraction solvent type, mass fraction of solvent, solid-liquid ratio, extraction temperature and extraction time on the yield of procyanidins were investigated by single factor experiment and process conditions for extraction of procyanidins from oil-tea camellia seed shell were optimized by orthogonal experiment. The results showed that the optimal extraction conditions were obtained as follows: with choline chloride-citric acid (molar ratio 1∶1) solution as extraction solvent, mass fraction of choline chloride-citric acid solution 80%, solid-liquid ratio 1∶25, extraction temperature 80℃, extraction time 40 min. Under these conditions, the yield of procyanidins was 5.26%.In conclusion, the procyanidins can be effectively extracted from oil-tea camellia seed shell with deep eutectic solvents. |
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