共查询到19条相似文献,搜索用时 218 毫秒
1.
2.
以青稞、普洱茶为主要原料,以感官评价为评定指标,对青稞与茶汤料液比、浸泡时间、烘烤温度、烘烤时间4个主要影响因素进行单因素试验,采用Central Composite Design设计方法,对普洱茶风味青稞茶进行4因素5水平的响应面试验设计,得到普洱茶风味青稞茶的最佳配方。结果表明:普洱茶风味青稞茶的最佳配方为青稞与茶汤料液比6.5 g/100 mL、浸泡时间15 min、烘烤温度207℃、烘烤时间10.6 min,为普洱茶风味青稞茶的工业化生产提供了科学依据。 相似文献
3.
4.
5.
6.
本试验以紫薯粉、玫瑰花粉、枸杞多糖粉、低筋面粉等为主要原料,以木糖醇代替蔗糖,研制一款风味特殊的低糖戚风蛋糕。通过单因素和响应面试验,结合感官评分和质构特性分析,研究了添加量对蛋糕品质的影响。结果表明:紫薯玫瑰枸杞蛋糕最佳配方为低筋面粉40.0 g、蛋清为115.0 g、蛋黄45.0 g,紫薯10.2 g、玫瑰花粉4.7 g、枸杞多糖粉1.0 g、木糖醇38.1 g、玉米油30.0 g、白醋5.0 g、水35.0 g,下火140℃、烘烤50 min。此条件下制作成的蛋糕口感绵软、香味浓郁,营养价值高。 相似文献
7.
蔬菜馅料苏式月饼以面粉、榨菜和火腿肠为主要原料,经过制皮、制酥、制皮酥、调馅料、包馅、成型和烘烤等工艺加工而成的食品。试验证明:水油皮中面粉∶水∶糖∶油脂的比例大约为10∶5∶3∶3、油酥皮中皮料和酥料比是2∶1、包酥的水油皮∶油酥皮大约为2∶1、馅料中榨菜和牛肉比是1∶1及皮酥和榨菜馅料比是4∶6效果最佳。 相似文献
8.
9.
超微红茶粉海绵蛋糕的制作工艺优化 总被引:1,自引:0,他引:1
本研究以超微红茶粉为原料制作海绵蛋糕,在单因素实验基础上,采用响应面法Box-Behnken中心组合原理对蛋糕工艺进行优化,考察超微红茶粉的粒度、茶粉添加量、烘烤温度、烘烤时间四个因素对蛋糕硬度和感官评分的影响,建立了该工艺的回归模型。结果表明,响应面模型拟合性良好,各因素对蛋糕硬度的影响顺序为:茶粉添加量 > 烘烤时间 > 烘烤温度 > 茶粉粒度,各因素对感官评分的影响顺序为:茶粉添加量 > 茶粉粒度 > 烘烤时间 > 烘烤温度。超微红茶粉海绵蛋糕最优工艺配方为:茶粉粒度4000目,茶粉添加量4.30%、烘烤温度160 ℃、烘烤时间29 min,此工艺下蛋糕硬度值为731.63 g,感官评分为78.20分,蛋糕组织细密,口感绵软,红茶香气馥郁。 相似文献
10.
为开发一款低糖、低脂、新型健康的功能性曲奇饼干,以低筋面粉为主要原料,鹰嘴豆粉为辅料,使用日本豆腐代替部分黄油,木糖醇粉代替部分白砂糖,通过单因素实验和正交实验,制作鹰嘴豆粉曲奇饼干。结果表明,鹰嘴豆粉曲奇饼干的最佳配方为低筋面粉100 g、鹰嘴豆粉添加量45 g、黄油添加量55 g、日本豆腐添加量30 g、木糖醇粉添加量20 g、糖粉添加量30 g、鸡蛋液添加量40 g,烘烤温度为面火190℃,底火170℃;烘烤时间12 min,此时产品的感官评分达94分。该产品口感松脆,甜而不腻,既保持了曲奇饼干原有的风味,又减少了高能量组分油和糖的含量,有较高的营养价值。 相似文献
11.
A puff pastry dough that remained stable at refrigerated temperatures was developed. Dry heat treatment was used to partially destroy amylase and lipoxygenase in wheat flour. Water activity of puff pastry dough was reduced from 0.98–0.90 by addition of 12g sorbitol/100g flour. The adverse effects of sorbitol on baking properties of puff pastry were alleviated by addition of sodium stearoyl lactylate and gum arabic. The puff pastry dough stored at 5°C in air or nitrogen was stable for 75 days without any significant loss in specific volume or pastry height in comparison with the frozen control. 相似文献
12.
13.
14.
15.
为满足市场对新型烘焙功能食品的需求,研制无糖、低热量、富含纤维且具有抗氧化特性的蛋糕。本实验采用D-最优混料设计研究葛根粉、南瓜粉和低筋粉3种主要原料的不同配比对蛋糕感官品质的影响,以甜茶提取液替代砂糖作为甜味剂,采用单因素及响应面试验优化加工工艺,考察甜茶添加量、甜茶提取液体积和泡打粉添加量对蛋糕感官品质及质构特性的影响。结果表明:蛋糕主要混合原材料最优配方为葛根粉43%、南瓜粉 20%、低筋粉37%;甜茶添加量4.3 g、甜茶提取液体积30.0 mL、泡打粉2.5 g。该混料配方及制作工艺生产的蛋糕感官评分为 87.36分,总酚含量为629.1 mg/100 g,总黄酮含量为564.5 mg/100 g,总抗氧化能力为396.7 mg/100 g,为功能性营养蛋糕开发提供了新途径。 相似文献
16.
ABSTRACT: Pu-erh tea is known as a fermented tea and longer storage enhances its flavor and taste. Recently, Aspergillu s, Blastobotrys , and Streptomyces are found to play important roles in nutritional enhancement of Pu-erh tea by fermentation. Since water and temperature affect the microbial growth, we therefore explored the factors that might enhance the Pu-erh tea fermentation. The results showed that the addition of fresh tea-leaf extract (TLE) enhanced the withered tea fermentation (at 37 °C, 80 to 85% RH) as compared with the water only. Contents of statin, GABA, gallic acid, DPPH scavenging and polyphenol oxidase (PPO) activities were increased, whereas polyphenols and caffeine were decreased over 6 mo. TLE dose-dependently enhanced some of the qualities (that is, statin, PPO) of Pu-erh tea significantly as compared with the water only. The effect was related to the increase population of A. niger and A. carbonarius at 6 mo (from 7.6 ± 1.2 × 101 and 3.2 ± 1.3 × 101 to 3.1 ± 1.2 × 106 and 2.4 ± 1.1 × 105 colony forming units [CFU]/g, respectively). After drying process (90 °C, 30 min), the total microbial count from these samples returned to background level (3 ± 0.5 × 102 CFU/g). None of ochratoxin and fumonisin, toxins from Aspergillus , was detected in the final products. The flavor and taste were also enhanced by treatment with TLE. The inoculation with S. cinereus Y11 with 2% TLE further enhanced these functional contents (about 2-fold increase of statin level) in the experimental Pu-erh tea. Therefore, this result may add a new process for Pu-erh tea manufacture. 相似文献
17.
目的揭示普洱茶发酵过程中的微生物群落结构及其与普洱茶品质形成影响关系。方法采用CTAB法提取普洱茶发酵阶段样的微生物总DNA,并进行基因扩增,基于illumina Miseq技术测序平台进行双末端测序分析,研究普洱茶发酵过程中不同层间的微生物群落结构。结果首次在普洱茶发酵过程中发现了雪黄散囊菌,且各发酵层间和各发酵阶段均有存在,但由于发酵堆温和其他优势菌群的影响,雪黄散囊菌生长随发酵进行受到了抑制。结论在普洱茶生产过程中控制发酵条件,使其有利于雪黄散囊菌的生长,并在普洱茶发酵过程中处于优势地位,从而产生特色新风味的普洱茶。 相似文献
18.
19.
普洱茶产于云南,属于后发酵茶,是我国黑茶的典型代表之一。微生物参与的后发酵过程使晒青毛茶中的多酚类成分发生了一系列复杂的诸如氧化、聚合、缩合、分解等为主的电化学变化,奠定了普洱茶的化学物质基础,赋予了普洱茶特殊的风味品质和保健功效。近年来的研究表明,普洱茶后发酵过程中,在微生物分泌的胞外酶作用下,糖基化、甲基化以及其他类型取代方式的化学结构修饰也是多酚类成分生物转化的重要途径之一,以此形成了众多多酚类成分的化学结构修饰产物。现有研究表明,这些结构修饰产物对普洱茶的风味品质和生物活性产生重要影响,是普洱茶中潜在的重要品质化学成分和标志性成分,具有重要的研究意义。本文综述了普洱茶中多酚类成分化学结构修饰产物的研究进展。 相似文献