壳聚糖在红葡萄酒澄清中的应用

Investigation on the Application of Chitosan in the Clarification of Claretct

壳聚糖是一种无毒、安全的天然高分子阳离子絮凝剂,具有生物降解性、吸附性和吸湿性等作用;可絮凝红葡萄酒中的胶体微粒、螯合金属离子、吸附有机酸类物质,提高酒的澄清度、稳定性,改善酒的口感;且对酒的色度、主要成分影响不大,用量少,作用时间短,稳定期长;是一种理想的葡萄酒澄清剂。最佳用量0.04%,作用温度30℃以内,作用时间2.5h以上。(孙悟)

Chitosan, as a nontoxic and natural high molecular positive ion flocculant, is of high safety and in possession of the functions of biodegradability, absorbability and hygroscopicity. Its application in claret could flocculate colloid granules, chelate metal ions, absorb organic acids, improve wine clarity and stability, and perfect wine taste. Besides, its application had no adverse effects on wine color and wine compositions. And the advantages such as small use level, short acting time, and long stable period presented in its application. Accordingly, it was considered as an ideal clarifier for claret with its optimal use level as 0.04 % and use temperature within 30℃ and acting time above 2.5 h. （Tran. by YUE Yang ）