Effect and characterization of polysaccharides extracted from Chlorella sp. by hot-water and alkali extraction methods
文献类型：期刊论文
| 作者 | Liu, Fen1,2,3,5; Chen, Huanjun1,2,5; Qin, Lei1,2,5; Al-Haimi, Akram Ali Nasser Mansoor1,2,5; Xu, Jin1,2,5; Zhou, Weizheng1,2,5; Zhu, Shunni1,2,4,5; Wang, Zhongming1,2,5 |
| 刊名 | ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 70页码:7 |
| 关键词 | Chlorella polysaccharides Extraction Physicochemical properties Antioxidant activity |
| ISSN号 | 2211-9264 |
| DOI | 10.1016/j.algal.2023.102970 |
| 通讯作者 | Zhu, Shunni(zhusn@ms.giec.ac.cn) |
| 英文摘要 | This study characterized and compared the physicochemical properties and antioxidant activity of poly-saccharides from Chlorella sp. extracted by hot-water extraction method at different temperatures (60-180 degrees C) and alkali extraction method at different alkali concentrations (0-4 %). Results showed that the dissolution percent of polysaccharides of the two methods reached maximum values of 71.19 % and 58.79 % at 120 degrees C and 4 % alkali concentration, respectively. All these polysaccharides contained the same monosaccharide components at different proportions. The molecular weight of polysaccharides extracted by alkali method were larger than that extracted by hot-water method. High temperature and alkali concentration both degraded polysaccharides into the lower molecules and destroyed the carboxyl group in polysaccharides. The polysaccharides from alkali method showed the better antioxidant activity, and the polysaccharide extracted by 1 % alkali concentration showed the highest antioxidant activity with 85.17 % (4 mg/mL) and 96.75 % (1 mg/mL) scavenging rates of DPPH and center dot OH, respectively. This study concludes that the determination of the extraction condition of Chlorella polysaccharides should consider the great effect of physicochemical properties and antioxidant activity. |
| WOS关键词 | MOLECULAR-WEIGHT POLYSACCHARIDES ; ANTIOXIDANT ACTIVITIES ; LIPID EXTRACTION ; CELL DISRUPTION ; PROTEIN ; PYRENOIDOSA ; WALL |
| 资助项目 | Science and Technology Planning Project of Guangzhou, China[202102080406] ; Science and Technology Planning Project of Guangzhou, China[202102021096] ; National Natural Science Foundation of China[21878291] ; Key Laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences[LMB20211006] |
| WOS研究方向 | Biotechnology & Applied Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000921225700001 |
| 出版者 | ELSEVIER |
| 资助机构 | Science and Technology Planning Project of Guangzhou, China ; National Natural Science Foundation of China ; Key Laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38380]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhu, Shunni |
| 作者单位 | 1.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.2 Energy Rd, Guangzhou, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Fen,Chen, Huanjun,Qin, Lei,et al. Effect and characterization of polysaccharides extracted from Chlorella sp. by hot-water and alkali extraction methods[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2023,70:7. |
| APA | Liu, Fen.,Chen, Huanjun.,Qin, Lei.,Al-Haimi, Akram Ali Nasser Mansoor.,Xu, Jin.,...&Wang, Zhongming.(2023).Effect and characterization of polysaccharides extracted from Chlorella sp. by hot-water and alkali extraction methods.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,70,7. |
| MLA | Liu, Fen,et al."Effect and characterization of polysaccharides extracted from Chlorella sp. by hot-water and alkali extraction methods".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 70(2023):7. |
入库方式： OAI收割
来源：广州能源研究所
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