Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull
The abundant fruit hulls of tea-oil tree (Camellia oleifera) are still underutilized and wastefully discaded to pollute the environment. In order to solve this problem and better utilize the fruit hulls of C. oleifera, a microwave-assisted extraction system was used to extract their polyphenols usin...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2011-05-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/16/6/4428/ |
| _version_ | 1818539350745415680 |
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| author | Jiahong Chen Man Xu Liangliang Zhang Dongmei Wu Yongmei Wang |
| author_facet | Jiahong Chen Man Xu Liangliang Zhang Dongmei Wu Yongmei Wang |
| author_sort | Jiahong Chen |
| collection | DOAJ |
| description | The abundant fruit hulls of tea-oil tree (Camellia oleifera) are still underutilized and wastefully discaded to pollute the environment. In order to solve this problem and better utilize the fruit hulls of C. oleifera, a microwave-assisted extraction system was used to extract their polyphenols using water as the extraction solvent. A central composite design (CCD) was used to monitor the effects of three extraction processing parameters – liquid:solid ratio (mL/g), extraction time (min) and extraction temperature (°C) – on the polyphenol yield (%). The results showed that the optimal conditions were liquid:solid ratio of 15.33:1 (mL/g), extraction time of 35 min and extraction temperature of 76 °C. Validation tests indicated that under the optimized conditions the actual yield of polyphenols was 15.05 ± 0.04% with RSD = 0.21% (n = 5), which was in good agreement with the predicted yield. Phenolic compounds in the extracts were analysed by HPLC, and gallic acid was found to be the predominant constituent. The total flavonoid content in the extracts was determined and high total flavonoid content was revealed (140.06 mg/g dry material). |
| first_indexed | 2024-12-11T21:40:53Z |
| format | Article |
| id | doaj.art-624a77d82cfb44ce84e52b9a066bb468 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-11T21:40:53Z |
| publishDate | 2011-05-01 |
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| series | Molecules |
| spelling | doaj.art-624a77d82cfb44ce84e52b9a066bb4682022-12-22T00:49:50ZengMDPI AGMolecules1420-30492011-05-011664428443710.3390/molecules16064428Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit HullJiahong ChenMan XuLiangliang ZhangDongmei WuYongmei WangThe abundant fruit hulls of tea-oil tree (Camellia oleifera) are still underutilized and wastefully discaded to pollute the environment. In order to solve this problem and better utilize the fruit hulls of C. oleifera, a microwave-assisted extraction system was used to extract their polyphenols using water as the extraction solvent. A central composite design (CCD) was used to monitor the effects of three extraction processing parameters – liquid:solid ratio (mL/g), extraction time (min) and extraction temperature (°C) – on the polyphenol yield (%). The results showed that the optimal conditions were liquid:solid ratio of 15.33:1 (mL/g), extraction time of 35 min and extraction temperature of 76 °C. Validation tests indicated that under the optimized conditions the actual yield of polyphenols was 15.05 ± 0.04% with RSD = 0.21% (n = 5), which was in good agreement with the predicted yield. Phenolic compounds in the extracts were analysed by HPLC, and gallic acid was found to be the predominant constituent. The total flavonoid content in the extracts was determined and high total flavonoid content was revealed (140.06 mg/g dry material).http://www.mdpi.com/1420-3049/16/6/4428/Camellia oleiferapolyphenolsmicrowave-assisted extractionresponse surface methodology |
| spellingShingle | Jiahong Chen Man Xu Liangliang Zhang Dongmei Wu Yongmei Wang Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull Molecules Camellia oleifera polyphenols microwave-assisted extraction response surface methodology |
| title | Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull |
| title_full | Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull |
| title_fullStr | Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull |
| title_full_unstemmed | Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull |
| title_short | Microwave-Assisted Extraction of Polyphenols from Camellia oleifera Fruit Hull |
| title_sort | microwave assisted extraction of polyphenols from camellia oleifera fruit hull |
| topic | Camellia oleifera polyphenols microwave-assisted extraction response surface methodology |
| url | http://www.mdpi.com/1420-3049/16/6/4428/ |
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