聚天冬氨酸鉀作為葡萄酒穩定劑可防止酒石酸鹽晶體析出。經過評估，歐盟食品安全局提議，聚天冬氨酸鉀作為穩定劑使用于葡萄酒，最大限量為300mg/L，典型使用量為100-200 mg/L，具體用量依據葡萄酒的穩定性水平。

　　部分原文報道如下：

　　Potassium polyaspartate (A-5D K/SD) is proposed for use as a stabiliser in wine, with a maximum use level of 300 mg/L and typical levels in the range of 100-200 mg/L. The data provided in support of the current application were in accordance with the Tier 1 requirement of the Guidance for submission for food additive evaluations issued by the ANS Panel in 2012. In the in vitro tests provided by the applicant, potassium polyaspartate (A-5D K/SD) showed minimal proteolytic digestion and no absorption of the intact compound.