期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 83, 期 -, 页码 226-232出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2015.11.059
关键词
Ultrasonic-microwave synergistic extraction; Cornus officinalis; The yield of Cornus officinalis polysaccharides
资金
- Jiangsu Key Laboratory of Quality Control and Further Processing of Cereals and Oils [LYPK201305]
- Independent Innovation Fund of Agricultural Science and Technology of Jiangsu Province [CX (15) 1009, CX (13) 3068]
- Science and Technology Support Program of Jiangsu Province-Agriculture Part [BE2013357]
- Jiangsu Provincial Engineering Laboratory for Biomass Conversion and Process Integration [JPELBCPL2014004]
Ultrasonic-microwave synergistic extraction (UMSE) of polysaccharides from Comas officinalis was optimized by response surface methodology (RSM). The effect of four different factors on the yield of C. officinalis polysaccharides (COP) was studied. RSM results showed that the optimal conditions were extraction time of 31.49823 min, microwave power of 99.39769W, and water-to-raw material ratio of 28.16273. The COP yield was 11.38 +/- 0.31% using the modified optimal conditions, which was consistent with the value predicted by the model. The crude COP was purified by DEAE-Cellulose 52 chromatography and Sephadex G-100 chromatography. Five fractions, namely, crude COP, COP-1, COP-2, COP-3, and COP-4, were obtained. Monosaccharide composition analysis revealed that the COP was composed of glucose, arabinose, fucose, xylose, mannose, and rhamnose. Preliminary structural characterizations of COP were conducted by scanning electron microscopy and Fourier transform infrared spectroscopy. (C) 2015 Elsevier B.V. All rights reserved.
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