苦瓜汁保健饮料的工艺研究

Development of Health Beverage Momordica charantia Juice

[目的]为开发食用方便且具有独特风味的天然苦瓜食品。[方法]用新鲜苦瓜、甜菊苷、柠檬酸和食盐研制苦瓜汁饮料,通过正交试验优化配方,研究生产工艺、关键技术。[结果]最佳配方是苦瓜汁36%,甜菊苷7%,柠檬酸0.5%,食盐0.2%,制成的苦瓜汁饮料淡咸香型,淡黄绿色,质地均匀、细腻,具有苦瓜特有的风味,酸甜适宜,清爽润喉,无异味。总酸0.3%,总糖3.4%～3.5%,pH值4.2～4.3。细菌总数≤85个/ml,大肠杆菌≤2个/100ml,致病菌未检出,常温下保质期为6个月。复合护色剂(TKH02)0.1%护色效果最好。[结论]该配方制成的苦瓜保健饮料风味优良,口感细腻,别具特色,而且工艺流程简单可行,成本低,为苦瓜资源的合理利用和饮料新品种的开发开辟了新途径。

[Objective] The aim of the research was to develop natural food of Momordica charantia L that was convenient to eat and had particular flavors.[Method] M.charantia juice drink was developed with fresh M.charantia,stevioside,citric acid and salt.And the formula was optimized by orthogonal test to study its production process and key techniques.[Result] The optimum formula was 36 % M.charantia juice,7 % stevioside,0.5 % citric acid and 0.2 % salt.The developed M.charantia juice drink was weak slat and fragrant,light yellow-green and it had uniform and exquisite texture and specific flavor of M.charantia.It had appropriate sugar content and acidity,being clean and wet for throat without peculiar smell.The drink had total acid of 0.3 %,total sugar of 3.4 %～3.5 %,pH value of 4.2～4.3.Total bacterial count was less than or equal to 85 /ml,the number of E.coli was less than or equal to 2 /100 ml.And the pathogen was not detected and the shelf life at normal temperature was 6 months.The color-protection effect of the complex color-protection agent 0.1 % TKH02 was best.[Conclusion] Health drink M.charantia juice developed by this formula has excellent flavor,exquisite taste,special character,simple and feasible technology flow and low cost,which opens new approach for reasonable utilization of M.charantia resource and the development of new drink variety.