Abstract Soluble polysaccharides were isolated from fruit pericarps of the Algerian Argania spinosa. The cell wall fraction was subjected to sequential extractions with H2O (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 (Tg) and the fusion transition (Tf) have been recorded.

中文翻译：

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阿尔及利亚刺槐果皮可溶性多糖的化学和热特性

摘要 从阿尔及利亚Argania spinosa 的果皮中分离出可溶性多糖。用 H2O（100°C 下 2 × 2 小时）、EDTA（1%，80°C 下 6 小时）和 KOH（1 和 4 M，25°C 下 14 小时）对细胞壁部分进行连续提取。使用气相色谱（GC）、红外光谱（FTIR）和差示扫描量热法（DSC）对所得多糖级分的结构进行表征。果胶级分中阿拉伯糖、半乳糖和鼠李糖的存在表明存在鼠李糖半乳糖醛酸聚糖，而半纤维素级分中木糖的丰度表明存在木聚糖。DSC 数据揭示了所有可溶性多糖的吸热行为，并且仅记录了两种热转变，即玻璃化转变 (Tg) 和融合转变 (Tf)。