Physicochemical properties and prebiotic activities of polysaccharides from longan pulp based on different extraction techniques
文献类型： 外文期刊
作者： Huang, Fei 1 ; Liu, Huijun 1 ; Zhang, Ruifen 1 ; Dong, Lihong 1 ; Liu, Lei 1 ; Ma, Yongxuan 1 ; Jia, Xuchao 2 ; Wang, Gua 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Guangdong Key Lab Agr Prod Proc, Sericultural & Agrifood Res Inst, Key Lab Funct Foods,Minist Agr, Guangzhou 510610, Guangdong, Peoples R China
2.Guangdong
关键词： Longan polysaccharides; Different extraction methods; Glycosidic linkage; Probiotic proliferation
期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：9.381； 五年影响因子：8.678 ）
ISSN： 0144-8617
年卷期： 2019 年 206 卷
页码：
收录情况： SCI
摘要： Longan pulp polysaccharides were extracted with hot water (LP-H), superfine grinding (LP-S) and superfine grinding-assisted enzymatic treatments (LP-SE). The yields, physicochemical properties and prebiotic activities of polysaccharides were investigated. Compared with LP-H and LP-S, the yield, sugar content, solubility, arabinose and mannose percentage of LP-SE increased while its apparent viscosity, particle size, Mw and glucose percentage declined. Three LPs contained similar glycosidic linkage of -> 3)alpha-L-Araf-(1 ->, -> 3,6)-beta-D-Galp-(1 -> and alpha-L-Rhap(1 ->, while they each contained specific glycosidic linkage of -> 4)-beta-D-Glcp(1 ->, -> 4)-beta-D-Galp-(1 -> and -> 5)-alpha-L-Araf-(1 -> in LP-H, LP-S and LP-SE, respectively. Moreover, LP-SE exhibited stronger stimulation than LP-H and LP-S on the proliferation of Lactobacillus plantarum, Lactobacillus bulgaricus, Lactobacillus fermentum and Leuconostoc mesenteroides. The results indicated three extraction methods had some effect on chemical composition and structure of polysaccharide. LP-SE extracted by superfine grinding-assisted enzymatic treatment exhibited the highest prebiotic activities, which have a great potential in applying in functional food and medical industry.
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