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鱼腥草金银花凉茶饮料的研制 总被引:2,自引:0,他引:2
探讨制作鱼腥草、金银花复合保健凉茶饮料的最佳工艺条件。以鱼腥草汁和金银花汁配比、白砂糖添加量、柠檬酸添加量、β-环状糊精添加量为试验因素,以产品的色泽、风味、组织形态等感官评分为指标,通过正交试验,得出该复合凉茶饮料的最佳配方,即鱼腥草汁/金银花汁为1∶1,白砂糖的添加量为8.0 g/100 mL,柠檬酸的添加量为36 mg/100 mL,β-环状糊精的添加量为0.15%时,该鱼腥草金银花凉茶饮料呈棕黄色,澄清无沉淀,均匀一致,酸甜适中,清爽可口,具有鱼腥草和金银花的天然风味。 相似文献
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绿茶,红枣,桂圆,枸杞子复合茶饮料的生产工艺 总被引:3,自引:0,他引:3
对传统饮品-袋泡“八宝茶”进行剖析,精选绿茶,红枣,桂圆,枸杞子为原料,经浸取,脱气,过滤,杀菌等工序制得液体复合茶饮料。对关键生产工艺进行了探讨。 相似文献
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系统介绍了苎麻织物的设计和生产过程.通过市场调研、理论分析和对比试验分析,设计出一款纯麻织物,优选出合理的浆纱、织造等工序的工艺参数,并在实际应用中产生良好的效果,织机运转效率达到9l%,入库一等品率达到99%.实践证明:合理的浆纱工艺配方、布机上机工艺和较高的织造温湿度控制是取得良好质量的前提. 相似文献
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现今对残次茶的利用和茶多酚的提取工艺不完善,以至于造成残次茶的浪费。因此,研究从残次茶中提取茶多酚的关键技术是很有必要也很有意义的。试验以黑毛茶为原料,乙醇为提取溶剂,采用超声辅助提取的方法提取茶多酚,并通过响应面分析得到最佳工艺条件:超声功率70 W,乙醇体积分数70%,浸提温度65 ℃,浸提时间30 min,料液比1∶25(g∶mL)。在此条件下,茶多酚提取率为7.44%。
关键词:中图分类号:TS202.3 文献标识码:A 文章编号:0254-5071(2015)06-0094-05
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以茶树品种碧香早、尖波黄和桃源大叶的夏季一芽一叶茶鲜叶为原料,将其分别加工成黄茶,通过感官品质、滋味品质和香气品质分析,探讨3个茶树品种的黄茶适制性。结果表明,与桃源大叶和碧香早相比,尖波黄茶鲜叶更适合于加工黄茶,由其加工而成的黄茶外形色泽金黄、香气清香带甜、滋味醇和较爽、汤色及叶底金黄较亮;水浸出物、氨基酸、茶多酚、黄酮、可溶性糖、茶黄素含量相对较高,分别为43.80%,2.27%,23.09%,1.06%,4.13%,0.24%,且酚氨比值最小,为10.17;儿茶素总量为14.21%,简单儿茶素总量为5.49%,酯型儿茶素含量为8.72%,酯型儿茶素/总儿茶素比值为0.61;同时香气物质种类最多、品质最好,其中大马士酮、十七烷、ɑ-松油醇、邻苯二甲酸二丁酯、4-[2,2,6-三甲基-7-氧杂二环[4.1.0]庚-1-基]-3-丁烯-2-酮、β-蒎烷、葑烯、3,6-壬二烯-1-醇乙酸酯、3,7,11-三甲基-1,3,6,10-十二碳-四烯、1-甲基-4-(2-甲基环氧乙烷基)-7-氧杂双环[4.1.0]庚烷10种香气物质为尖波黄特征性香气成分。研究结果表明,茶树品种尖波黄为加工黄茶的优异品种资源。 相似文献
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茶饮料加工与HACCP技术 总被引:7,自引:0,他引:7
采用HACCP(危害分析与关键控制点)管理体系的技术原理和方法,对热灌装茶饮料生产过程中的原辅材料(茶原料、水、糖、添加剂)、过滤、调配、灭菌、灌装、包装等工序作业过程进行了危害分析,并确定了其关键按制点,建立了标准的受控指标和标准化的操作规程。采取定量和定性的检查、测试、执行等行动,使热灌装茶饮料的生产始终保持安全、卫生、质量稳定状态,产品质量达到100%合格。 相似文献
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This study evaluated differences in gas production of leaves gathered from a range of multi-purpose trees (MPT) of Acacia, Cajanus, Chamaecytisus, Leucaena, Ricinus, Sesbania and Veronia species and the effect of their digesta (obtained by fermenting MPTs for 24 h) on gas production of Napier grass (Pennisetum purpureum. Schumach) (NapierGP) and neutral-detergent fibre (NDF) extracted from Napier grass (NDFGP). Fresh samples of MPTs were incubated in triplicate or quintuplicate in a medium prepared from sieved rumen liquor harvested from two rumen-fistulated cows fed native pasture hay ad libitum and 2.0 kg cottonseed cake per head day?1. There was a wide variation in the volume of gas produced by the MPTs. With the exception of the leaves of R communis (castor oil plant) and L pallida (14189), the MPTs produced less (P < 0.05) gas than Napier grass. Sesbania goetzei (1279 and 15007), and C cajan (12842) produced gas at a slower (P < 0.05) rate than Napier grass. The digesta of MPTs induced rates of NapierGP that ranged from 0.63 to 0.83 the value obtained with the Napier grass digesta. With the exception of S Sesban (10865), C palmensis and R communis leaves, the MPT digesta induced NapierGP similar to or slightly higher than the Napier grass digesta. The digesta of S sesban (10805), A siberiana (pods), C cajan (11443, 12842) and C palmensis depressed the cumulative extent of NDFGP relative to Napier grass digesta. The MPT digesta prolonged the lag phase that precedes NDFGP. The results are discussed in relation to the effect of MPT digesta on aspects of cell wall fermentation and are corroborated with results obtained in vivo. It was concluded that the major effect of antifermentation factors in the MPTs would be manifested in vitro in prolonged lag phase preceding the onset of NDFGP and in slowed rate of NapierGP. 相似文献