Method for determining molecular weight of beta-glucan in wine

The invention relates to the technical field of measurement, in particular to a method for determining the molecular weight of beta-glucan in a wine. The method for determining the molecular weight ofthe beta-glucan in the wine comprises the following steps: dissolving a solid matter, which is obtained after the wine is dried through steaming, in a sodium nitrate water solution, so that a solution to be detected is obtained; and detecting the solution to be detected through a gel permeation chromatograph and with the sodium nitrate water solution as a mobile phase, so that a molecular weightdistribution range of the beta-glucan is obtained. The method for determining the molecular weight of the beta-glucan in the wine provided by the invention has the advantage that the modular weight ofthe beta-glucan in the wine can be accurately determined. 一种酒中β-葡聚糖分子量的测定方法，涉及测量技术领域。酒中β-葡聚糖分子量的测定方法包括以下步骤：将酒蒸干后的固形物溶解于硝酸钠水溶液，得到待测液；采用凝胶渗透色谱仪，以硝酸钠水溶液作为流动相对待测液进行检测，得到β-葡聚糖的分子量分布范围。本申请提供的酒中β-葡聚糖分子量的测定方法能够对酒中β-葡聚糖的分子量进行准确的测定。