摘要:
铁皮石斛营养丰富，在贮藏过程中会出现霉变、失水、发芽等问题，而霉变是影响铁皮石斛商业价值及食用价值的主要因素。铁皮石斛鲜品经清洗后采用紫外照射、乙醇处理及高压蒸汽三种处理方式对铁皮石斛的表面进行保鲜前处理，并对处理后的铁皮石斛进行微生物检测，优选杀菌效果较好的处理组在5℃及25℃进行贮藏试验。结果表明，采用75%乙醇对铁皮石斛鲜品浸泡处理3 min能达到较理想的杀菌效果，且处理后的样品在5℃贮藏49 d过程中能保持较好的感官品质。
Abstract: Dendrobium candidum is a nutrient-rich Chinese herbal medicine. Mildew, dehydration, budding and some other problems may appear in the process of storage. Mildew is the main factor affecting the commercial value and the edible value of Dendrobium candidum. Three different treatment methods of irradiation of ultraviolet, alcohol treatment and high temperature steam were used on the surface of fresh Dendrobium candidum to select the effective sterilization method. The results showed that fresh Dendrobium candidum soaked in 75% ethanol for 3 minutes can get a better sterilizing effect, and treated samples can maintain good quality during storage.