【摘要】 采用正交设计试验研究了浸提条件(浸提温度、浸提时间、茶水比、浸提液pH值、浸提次数)对绞股蓝茶浸提液品质的影响。结果表明,浸提温度75℃,浸提时间60min,茶水比1∶75,pH值为8,浸提2次时有利于提高绞股蓝茶浸提液的品质,通过该浸提条件生产的绞股蓝茶浸提液具有较高的浸提率,而且浸提液的明度较高、汤色较好,冷后浑较低。更多还原

【Abstract】 An orthogonal experiment was applied to study the effect of extracting conditions (i.e. extracting temperature, extracting time, ratio of gynostemma pentaphyllam tea to water, pH value of extracting water, extracting times) on the quality of gynostemma pentaphyllam tea extracts. The results showed that the extracting conditions with extracting temperature of 75℃, extracting time of 60 min, ratio of gynostemma pentaphyllam tea to water 1∶75, extracting water pH 8 and extracting 2 times were favorable to improve the quality of gynostemma pentaphyllam tea extracts. Under the above extracting conditions, gynostemma pentaphyllam tea extracts had higher extracting rate, higher lightness, better color and less cream down.更多还原