期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 79, 期 -, 页码 640-646出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2016.12.001
关键词
Polysaccharide; Galacturonic acid; Degree of esterification; Viscosity; Viscosity-average molecular weight
资金
- National Key Technology RD Program [2012BAD31B00]
- National Natural Science Foundation of China [31601481]
- Natural Science Foundation of Shandong Province [ZR2015CL049]
- Open Project of Shandong Key laboratory of TCM Quality Control Technology [ZD2016005]
High-speed shearing homogenization extraction (HSHE) was applied to extract pectin from the peels of pomelo using a high-speed shearing extractor for the first time and the extraction conditions were optimized using response surface methodology with Box-Behnken design. The optimal extraction conditions were determined: pH of extraction solvent 1.24, extraction voltage 156 V, extraction time 240 s, with the predicted extraction yield was 209 g/kg, which was very consistent with the experimental value (209 +/- 2 g/kg) and significantly higher than traditional thermal extraction method (175 +/- 6 g/kg at 85 degrees C for 80 min). Furthermore, pectin extracted by HSHE has a higher viscosity, intrinsic viscosity and viscosity-average molecular weight than traditional thermal extracted pectins. The results demonstrated that HSHE has a great potential for the extraction of pectin with higher viscosity efficiently. (C) 2016 Published by Elsevier Ltd.
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