离子交换树脂法降低苹果酒酸度研究

Study on the Deacidification of Cider by Ion Exchange Resin

为了降低苹果酒的酸度,采用了4种吸附性树脂对其降酸效果进行了研究。结果表明,苹果酒经过4种树脂处理后酸度都有所降低,降低顺序为D314>D914>335>LX-300。将降酸效果和降酸后的苹果酒品质等因素进行综合考虑,以D314树脂的降酸效果最为理想。在D314型弱碱性阴离子交换树脂的吸附苹果酒中,有机酸的表观吸附量为24.43 mg·m L-1,吸附平衡时间为60 min,适宜工作流量为5 m L·min-1。

In order to reduce the acidity of the cider, four types of adsorption resin were used to study the effect of acid reduction. The results showed that four types of adsorption resin all had positive influence on the reduction of acidity, and the descending order in acid reducing power was D314, D914, 335,LX-300. D314 was the optimum adsorption resin based on the reduction of acidity and the quality of the apple cider. The absorbance of adsorption resin D314 was 24.43 mg. mL^-1, with the adsorption equilibrium time being 60 min and the appropriate work flow 5 mL·min^-1.