干燥方法对金银花的质量影响研究

通过对金银花的不同干燥方法比较,干燥方法对金银花的质量有较大影响。在色泽方面,微波干燥和烘干的为绿色,晒干和真空干燥的为黄绿色,真空冷冻干燥的为褐色;在绿原酸的含量上,微波干燥的为5.93%,晒干的为5.17%,烘干的为5.53%,真空干燥的为3.95%,真空冷冻干燥的为3.35%;干燥后每g金银花的含菌量分别为:微波干燥的细菌总数2×103,晒干的为3.4×105,烘干的为1.4×105,真空干燥6×104,真空冷冻干燥为4×104。结果表明微波干燥最适合金银花的干燥。

Study on Effect of Drying Method on the Quality of Honeysuckle

In comparison with the different drying methods of honeysuckle,the drying methods have more important effect on the quality of honeysuckle. The dried honeysuckle color is green as dried by microwave and heating,yellow-green as dried by sun curing and vacuum,brown as dried by vacuum freezing. The dried honeysuckle chlorogenic acid contents are 5.93% as dried by microwave,5.17% as dried by sun curing,5.53% as dried by heating,3.95% as dried by vacuum,3.35% as dried by vacuum freezing;The bacteria in 1g dried honeysuckle are 1×104 as dried by microwave,3.4×105 as dried by sun curing,1.4×105 as dried by heating,6×104 as dried by vacuum,4×104 as dried by vacuum freezing,respectively. The results indicated that the microwave drying method is fit for honeysuckle.