节点文献
不同干燥方法对枸杞叶茶品质影响的研究
Study on the Effect of Different Drying Techniques on the Quality of Matrimony Vine Leaf Tea
【摘要】 为了获得枸杞叶的最佳干燥方法,为枸杞叶茶的加工提供理论依据,先以干燥温度或功率、干燥厚度为指标,确定枸杞叶茶热风干燥和微波干燥的最佳工艺参数;再以枸杞叶茶茶汤中茶多酚类总量、水浸出物含量、游离氨基酸含量为指标,结合感观评定,对两种干燥工艺的枸杞叶茶进行品质比较。结果表明:热风干燥工艺的最佳温度100℃,平铺厚度1.0cm,烘干时间60min;微波干燥的最佳功率540W,平铺厚度1.0cm,烘干时间6min;将两种干燥方法所得枸杞叶茶作比较,其中微波干燥处理的枸杞叶茶色泽较绿,口感较好,营养成分较高,有利于获得高品质的枸杞叶茶。
【Abstract】 In order to obtain the best drying technology of matrimony vine leaf tea, to offer an important recommendation for controllable and continuous processing, the technics parameters such as hot air temperature, microwave power and sample thickness were mainly discussed. Two drying methods were compared by measuring tea polyphenol and dissociate amino acid in water combinewith sensory evaluation. The results showed that the optimal parameters of hot air drying were as follows: sample thickness of 1 cm, hot air temperature of 100 ℃, drying time of 60 min, the optimal parameters of microwave drying were as follows: Microwave power of 540 W, sample thickness of 1.0 cm, drying time of 6 min. Microwave drying technology was beneficial to produce matrimony vine leaf tea with high qualities
【Key words】 matrimony vine leaf tea; hot air drying; microwave drying; qualities; effect;
- 【文献出处】 中国食品学报 ,Journal of Chinese Institute of Food Science and Technology , 编辑部邮箱 ,2012年10期
- 【分类号】TS272.5
- 【被引频次】10
- 【下载频次】575