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Optimization of pectin extraction and antioxidant activities from Jerusalem artichoke

文献类型：期刊论文

作者Liu, SY; Shi, XJ; Xu, LL; Yi, YT
刊名CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
出版日期2016-03-01
卷号34期号:2页码:372-381
关键词Jerusalem artichoke pectin response surface drying methods antioxidant activities
ISSN号0254-4059
产权排序[Liu Shengyi; Shi Xuejie; Xu Lanlan; Yi Yuetao] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Liu Shengyi; Shi Xuejie] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
通讯作者Yi, YT (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. ytyi@yic.ac.cn
英文摘要Jerusalem artichoke is an economic crop widely planted in saline-alkaline soil. The use of Jerusalem artichoke is of great significance. In this study, the response surface method was employed to optimize the effects of processing variables (extraction temperature, pH, extraction time, and liquid-to-solid ratio) on the yield of Jerusalem artichoke pectin. Under the optimal extraction conditions: pH 1.52, 63.62 min, 100A degrees C and a liquid-to-solid ratio of 44.4 mL/g, the maximum pectin yield was predicted to be 18.76%. Experiments were conducted under these optimal conditions and a pectin yield of 18.52 +/- 0.90% was obtained, which validated the model prediction. The effects of diff erent drying methods (freeze drying, spray drying and vacuum drying) on the properties of Jerusalem artichoke pectin were evaluated and they were compared with apple pectin. FTIR spectral analysis showed no major structural diff erences in Jerusalem artichoke pectin samples produced by various drying treatments. The antioxidant activities of pectin dried by diff erent methods were investigated using in vitro hydroxyl and DPPH radical scavenging systems. The results revealed that the activities of spray dried pectin (SDP) and apple pectin (AP) were stronger than those of vacuum oven dried pectin (ODP) and vacuum freeze dried pectin (FDP). Therefore compared with the other two drying methods, the spray drying method was the best.
研究领域[WOS]Marine & Freshwater Biology ; Oceanography
关键词[WOS]SOY HULL PECTIN ; RESPONSE-SURFACE METHODOLOGY ; RADICAL-SCAVENGING ACTIVITY ; ALCOHOL PRECIPITATION ; FUNCTIONAL-PROPERTIES ; SCHIFF-BASES ; BY-PRODUCT ; IN-VITRO ; POLYSACCHARIDES ; ETHANOL
收录类别SCI
语种英语
WOS记录号WOS:000371607000012
源URL[http://ir.yic.ac.cn/handle/133337/10845]  
专题烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res
2.Univ Chinese Acad Sci, Coll Resources & Environm
推荐引用方式
GB/T 7714		 Liu, SY,Shi, XJ,Xu, LL,et al. Optimization of pectin extraction and antioxidant activities from Jerusalem artichoke[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(2):372-381.
APA Liu, SY,Shi, XJ,Xu, LL,&Yi, YT.(2016).Optimization of pectin extraction and antioxidant activities from Jerusalem artichoke.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(2),372-381.
MLA Liu, SY,et al."Optimization of pectin extraction and antioxidant activities from Jerusalem artichoke".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.2(2016):372-381.

入库方式： OAI收割

来源：烟台海岸带研究所

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