Influence of polysaccharide concentration on polyphenol-polysaccharide interactions

IF 10.7 1区化学 Q1 CHEMISTRY, APPLIED Carbohydrate Polymers Pub Date : 2021-11-15 DOI:10.1016/j.carbpol.2021.118670

Wafa Dridi , Nicolas Bordenave

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引用次数: 24

Abstract

Non-covalent interactions between polysaccharides and phenolics affect the physical properties of polysaccharide solutions. These interactions may in turn be influenced by polysaccharide-polysaccharide interactions. To test this hypothesis, we studied the influence of polysaccharide concentration (with guar, β-glucans, and xanthan) on the variations of rheological and water-binding properties upon addition of phenolics compounds (vanillin, caffeic acid, gallic acid, and epigallocatechin gallate). Addition of phenolics led to increased flow behavior index and decreased flow consistency index, with maximum effects at polysaccharide concentrations ranging between 0.6 × C* and 1.4 × C*, where C* is the critical overlap concentration of each polysaccharide. Water mobility was generally not significantly influenced by the addition of phenolics. The results showed that the ability of phenolic compounds to induce aggregation of polysaccharides in solution was strongly influenced by polysaccharide concentration around C* and therefore by polysaccharide-polysaccharide interactions.

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多糖浓度对多酚-多糖相互作用的影响

多糖和酚类物质之间的非共价相互作用影响多糖溶液的物理性质。这些相互作用可能反过来受到多糖-多糖相互作用的影响。为了验证这一假设，我们研究了多糖浓度(瓜尔胶、β-葡聚糖和黄原胶)在添加酚类化合物(香兰素、咖啡酸、没食子酸和表没食子儿茶素没食子酸酯)时对流变学和水结合特性变化的影响。酚类物质的加入使流动行为指数升高，流动一致性指数降低，在0.6 × C* ~ 1.4 × C*的多糖浓度范围内影响最大，其中C*为各多糖的临界重叠浓度。水的流动性一般不受酚类物质添加的显著影响。结果表明，酚类化合物诱导多糖在溶液中聚集的能力受到C*周围多糖浓度的强烈影响，因此受到多糖-多糖相互作用的强烈影响。

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来源期刊

Carbohydrate Polymers 化学-高分子科学

CiteScore

22.40

自引率

8.00%

发文量

1286

审稿时长

47 days

期刊介绍： Carbohydrate Polymers stands as a prominent journal in the glycoscience field, dedicated to exploring and harnessing the potential of polysaccharides with applications spanning bioenergy, bioplastics, biomaterials, biorefining, chemistry, drug delivery, food, health, nanotechnology, packaging, paper, pharmaceuticals, medicine, oil recovery, textiles, tissue engineering, wood, and various aspects of glycoscience. The journal emphasizes the central role of well-characterized carbohydrate polymers, highlighting their significance as the primary focus rather than a peripheral topic. Each paper must prominently feature at least one named carbohydrate polymer, evident in both citation and title, with a commitment to innovative research that advances scientific knowledge.