乌梅 1. Natural preservatives extracted fromPrunus mumeand Glycyrrhiza uralensis Fisch were used for bacteriostasis in carbonated drinks. 从乌梅、甘草中提取的天然防腐剂用于碳酸饮料中抑菌防腐,三个月后进行卫生指标检测并与苯甲酸钠防腐效果比较,结果显示均合格并