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Ultrasound-assisted extraction and antioxidant activity of polysaccharides from Acanthus ilicifolius

文献类型: 外文期刊

作者: Mtetwa, Michelle Dorcas 1 ; Qian, LiSun 1 ; Zhu, HongAn 1 ; Cui, FengJie 1 ; Zan, XinYi 1 ; Sun, WenJing 1 ; Wu, Di 2 ; Y 1 ;

作者机构: 1.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China

2.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Shanghai 201403, Peoples R China

3.Parchn Sodium Isovitamin C Co Ltd, Dexing 334221, Peoples R China

关键词: Acanthus ilicifolius; Polysaccharide; Ultrasound-assisted extraction; Structural characterization; Antioxidant activity

期刊名称:JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION ( 影响因子:2.431; 五年影响因子:2.347 )

ISSN: 2193-4126

年卷期: 2020 年 14 卷 3 期

页码:

收录情况: SCI

摘要: In the present study, ultrasound-assisted extraction of water-soluble polysaccharides from the Acanthus ilicifolius was optimized by using one-factor-at-a-time and Box-Behnken designs. A maximum polysaccharide yield of 2.46% was obtained under the optimized conditions of ultrasonic power of 150 W, temperature of 53 degrees C, extraction time of 50 min, and liquid to solid ratio of 35 mL/g. Results of UV, FTIR and molecular weights indicated that there were significant differences in structures of polysaccharides extracted with ultrasound assistance (UAE-ACI) and hot-water extraction (HWE-ACI) including monosaccharide compositions and ratios, and molecular weight distributions. Further analysis showed that UAE-ACI had a higher antioxidant activity in vitro than that of HWE-ACI possibly due to lower molecular weight and higher content of phenolics and protein fractions.

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