Pectic polysaccharides extracted from sesame seed hull: Physicochemical and functional properties
Pectic polysaccharides extracted from sesame seed hull: Physicochemical and functional properties
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从芝麻皮中提取的果胶多糖：理化和功能特性
DOI：
10.1016/j.ijbiomac.2021.10.077
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发表时间：
2021-10-20
影响因子：
8.2
通讯作者：
Wang, Xue-De
中科院分区：
文献类型：
--
作者：
Liu, Hua-Min;He, Meng-Ke;Wang, Xue-De
本研究的目的是从芝麻壳中提取果胶多糖并确定其理化和功能特性。用HCl提取种子壳中的果胶多糖，然后收集30%（SSP30）、50%（SSP50）和90%（SSP90）三种乙醇浓度。我们发现SSP30占总多糖的75.6％，并且含有76.39％的半乳糖醛酸，具有许多HG结构域和RG-I结构域中的短侧链。 SSP30在三个组分中表现出最强的羟自由基清除活性，并且能够更好地稳定乳液。较高Mw的果胶多糖在较低的乙醇浓度下首先沉淀，并且沉淀的果胶多糖的Mw随着乙醇浓度的增加而降低。这些结果为芝麻壳多糖的结构和功能特性提供了重要信息。这些信息可以为工业用途芝麻壳多糖的未来发展做出贡献。
The objective of the present investigation was to extract pectic polysaccharides from sesame seed hull and to determine their physicochemical and functional characteristics. The pectic polysaccharides in the seed hull were extracted with HCl and then collected at three ethanol concentrations of 30% (SSP30), 50% (SSP50), and 90% (SSP90). We found that SSP30 represented 75.6% of the total polysaccharides, and that it contained 76.39% galacturonic acid, with many HG domains and few short side chains in the RG-I domains. SSP30 exhibited the strongest hydroxyl radical scavenging activity among the three fractions, and was better able to stabilize the emulsions. Higher Mw pectic polysaccharides were firstly precipitated at lower ethanol concentrations, and the Mw of the precipitated pectic polysaccharides decreased with increasing ethanol concentration. These results provide important information on the structure and functional characteristics of sesame hull polysaccharides. This information can contribute to the future development of sesame hull polysaccharides for industrial purposes.