两岁幼儿吸收（防腐剂）对羟基苯甲酸丙酯和对羟基苯甲酸丁酯类防腐剂的数量可能会产生类雌激素风险，导致内分泌系统障碍。
The amounts that two-year-olds absorb from the [preservative] parabens propylparaben and butylparaben can constitute a risk for oestrogen-like disruptions of the endocrine system.
研究了以蔗糖酯及壳聚糖为涂膜剂，并配合防腐剂对羟基苯甲酸丙酯对青椒进行涂膜保鲜处理，观察青椒在贮藏期间亚硝酸盐含量的变化。
The preservation of green peppers by using sucrose ester, chitin and propyl-p-hydroxybenzoate was studied, and the nitrite content of green pepper during storage was analyzed.
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