阿拉伯糖
差示扫描量热法
多糖
化学
鼠李糖
果胶
木糖
木聚糖
玻璃化转变
傅里叶变换红外光谱
色谱法
红外光谱学
有机化学
食品科学
化学工程
聚合物
发酵
物理
工程类
热力学
作者
Kadda Hachem,K Boudraa,Meriem Kaïd-Harche
出处
期刊:Polish Journal of Chemical Technology
[De Gruyter]
日期:2020-11-26
卷期号:22 (4): 17-21
被引量:2
标识
DOI:10.2478/pjct-2020-0033
摘要
Abstract Soluble polysaccharides were isolated from fruit pericarps of the Algerian Argania spinosa. The cell wall fraction was subjected to sequential extractions with H 2 O (2 × 2 h at 100°C), EDTA (1%, 6 h at 80°C) and KOH (1 and 4 M, 14 h at 25°C). The structures of the obtained polysaccharide fractions were characterized using gas chromatography (GC), infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The presence of arabinose, galactose and rhamnose in the pectin fractions suggests the presence of rhamnogalacturonan, while the abundance of xylose in the hemicellulosic fractions indicates the presence of xylan. The DSC data revealed the endothermal behavior of all the soluble polysaccharides and only two thermal transitions, the glass transition (T g ) and the fusion transition (T f ) have been recorded.
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