酶及稳定剂对浊型菠菜汁稳定性的影响

该文主要研究浊型菠菜汁的制作过程和工艺条件,探索了酶及稳定剂对提高浊型菠菜汁组织稳定性的作用。结果表明,在50℃时,添加0.1％的复合酶作用20min,具有最佳的酶解效果。通过添加0.65％的复合稳定剂可使菠菜汁呈均匀一致的浊度。     

添加菠菜和大豆芽混合汁的营养风味蛋糕

在提高蛋糕营养风味上作了初步研究,添加了菠菜、大豆芽汁,通过实验确定了菠菜的处理方法,最佳工艺参数及大豆芽汁添加量。     

30种粤菜调味汁的配方及调制（下）

十六、青汁: A、特点:色泽翠绿,味鲜美,有新鲜菜叶的清香。 B、配方: 原料:菠菜1.85公斤 淡上汤150克 味精10克精盐10克 制法:将菠菜叶洗干净,用捣碎机把菠菜叶捣烂,挤出汁液得菠菜原汁。需用时,加入上汤、味精、精盐调匀即可。 C、用此味汁享制的菜肴有:菠汁鲈鱼块、青汁虾仁、双色菊花鱼、太极豆腐等。     

菠菜汁低温火腿肠加工工艺研究

以猪肉为主料，菠菜汁为配料，以玉米淀粉、大豆分离蛋白等为辅料，通过单因素试验和正交试验，针对菠菜汁低温火腿肠的配方进行了研究，结果表明：菠菜汁添加量为3％、肥瘦肉比例为7：3，淀粉添加量为10％、香辛料添加量1．5％，产品质量最好。     

发酵蔬菜汁替代亚硝酸盐在牛肉灌肠中的应用

研究发酵蔬菜汁替代化学合成亚硝酸盐在牛肉肠中的作用效果。以木糖葡萄球菌和肉葡萄球菌作为发酵剂,不同添加量(5%、10%、15%和20%)的菠菜汁和胡萝卜汁为试验组制作牛肉肠,添加亚硝酸盐(添加0.01%)组为对照组,通过模糊综合评价法和牛肉肠的亚硝酸盐含量筛选最佳蔬菜汁;比较无亚硝酸盐蔬菜汁组、亚硝酸盐蔬菜汁组和发酵蔬菜汁组3种不同处理方式的牛肉灌肠在贮藏期间菌落总数、TBARS值、TVB-N、p H和色差的变化。添加15%和20%发酵菠菜汁制作的牛肉灌肠感官评价均较好,但是20%的发酵菠菜汁在24 h的亚硝酸盐残留量达到31.137 mg/kg,超出国标允许范围内,所以选择15%的发酵菠菜汁。在贮藏过程中,添加15%发酵菠菜汁制作的蔬菜牛肉发酵肠的微生物指标、理化指标和肉色指标与添加0.01%亚硝酸盐制作的牛肉灌肠相当。本研究得出在牛肉灌肠制作中,供试菌发酵15%菠菜汁产生亚硝酸盐可替代直接添加0.01%化学合成亚硝酸盐。     

飘香私房菜

菠汁苏麻球原料:糯米面200克,苏麻50克,芝麻50克,白糖50克,调合油200克(实用50克),菠菜汁适量。制法:将糯米面加入菠菜汁搅拌均匀揉匀成团。苏麻、芝麻分别下干锅炒香,放入镭钵舂成茸,     

响应面法优化菠菜胡萝卜挂面工艺研究

以面粉、菠菜、胡萝卜、食盐、水为原料制备菠菜胡萝卜挂面,并进行相关工艺优化。运用单因素试验得出菠菜与水的料液比、菠菜浆增添量、胡萝卜粉增添量对菠菜胡萝卜挂面品质影响的最优参数范围,再通过响应面法对菠菜胡萝卜挂面的最优参数范围做进一步优化。结果表明:菠菜与水的料液比0.25∶1(g/mL),菠菜浆增添量56%,胡萝卜粉增添量为20 g,在此工艺条件下制成的菠菜胡萝卜挂面色泽鲜丽,具有独特的风味,口感极佳。     

元旦饺饺看

菠汁白菜饺 图1 原料：饺子粉500克，盐5克，菠菜汁220克，白菜馅500克。 制法：先把饺子粉、盐、菠菜汁搅拌成面皮醒30分钟备用。再把皮搓体后做出两个叶子状的面皮．放上少许白菜馅，另一片面皮用朔刀压出花纹盖在上面。最后用旺火蒸6分钟即可。     

粤菜新做

双汁鸳鸯球 原料：牛肉100克．虾仁100克,马蹄50克,芜茜25克,陈皮5克,菠菜汁50克,红萝卜汁50克,盐、糖、鸡粉、生粉、胡椒粉各适量。     

苦荞麦麦麸浸出汁澄清方法及储藏稳定性的研究

实验研究了苦荞麸浸出汁的澄清工艺及储藏稳定性。结果表明:苦荞麸浸出汁澄清的最佳工艺条件为明胶用量0.02%,操作温度30℃,pH值3.0。影响浸出汁色泽稳定性的主要因素是温度和光照条件,影响浸出汁悬浮稳定性的主要因素是储藏时间。     

APPLE JUICE QUALITY AS INFLUENCED BY ULTRAFILTRATION

Objective quality of ultrafiltered (UF) apple juice compared favorably to apple juice filtered by conventional plate and frame filtration (PF). Agtron red and green values were higher for the UF juice, indicating a lighter colored product. Agtron green values were lower after 4 months of storage and compared well to juice from conventional methods over the remaining 8 months of storage. Green color of the UF juice remained steady at storage temperatures of either 1° or 21°C and was equal to the color values of the conventional juice stored at 1°, 21° or 32°. Clarity of the UF juice was excellent and remained stable over the entire storage period at either 1 or 21° with only a slight drop in clarity at 32°. UF juice was rated significantly lower in sensory flavor than PF juice. Sensory color of the UF juice was not rated as high as the PF juice at the start of the study, but as time in storage progressed sensory color improved. Initial panel reaction to UF apple juice was that the UF juice was too light in color and watery in flavor.     

杭白菊汤色变化因素初步探讨分析

杭白菊是日常生活重要饮品,从水质、pH、金属离子和氧气等方面对杭白菊汤色变化的影响进行了分析探讨。结果显示：本地自来水为杭白菊冲泡的最优水质,但长时间存放汤色会变绿。此外,碱性pH环境也易使杭白菊汤色变绿,具体的作用机理还有待进一步考究。而氧气、水质硬度和金属离子不是导致杭白菊变色的主要因素,但会加速汤色变化或浑浊,降低茶汤的稳定性。     

超高压和高温短时杀菌对绿色复合果蔬汁的杀菌效果与品质影响

通过感官评价,综合基本理化指标得出了一种较优的绿色复合果蔬汁的配方,并对比超高压(high hydrostatic pressure,HHP)和高温短时杀菌(high temperature short time,HTST)处理前后及其在4 ℃贮藏过程中的杀菌效果和理化品质变化。结果表明:对复合果蔬汁分别进行HHP(600 MPa/5 min)处理和HTST杀菌(86 ℃/15 s)处理后,果蔬汁中菌落总数从5.18 lg CFU/mL,下降至1.07 lg CFU/mL和1.11 lg CFU/mL,霉菌酵母、乳杆菌和嗜冷菌均未检出,达到国家要求的果蔬汁卫生标准;HHP处理后的果蔬汁总酚含量为43.645 μg/mL,显著高于HTST绿色复合果蔬汁;与HTST处理相比,HHP处理可以更好地保持复合果蔬汁的悬浮稳定性、色泽和抗氧化性等营养和品质指标。在4 ℃,15 d的贮藏期间,经HHP处理和HTST杀菌后的复合果蔬汁微生物指标均未超出国家卫生标准,且经HHP处理后的复合果蔬汁的悬浮稳定性、色泽品质、总酚含量和抗氧化能力等各项品质指标均优于HTST杀菌组。因此,HHP绿色复合果蔬汁保持了更好的品质。     

Application of polyelectrolytes to fractionation of alfalfa juice protein (short communication)

The quantities of protein which can be extracted from green plants depend on a number of factors such as the botanical composition of the plant, its growth stage, topdressing and system of extraction. Leaf protein concentrates have been incorporated into food for human consumption, but their green color has limited its application. Thermal precipitation of chloroplastic material is not specific, causes denaturation and requires high energy input. A selective recovery of the green fraction is possible by centrifugation at high centrifugal forces or by the combination of this method with an addition of calcium salt to a green juice. Application of high molecular polyelectrolytes in green juice precipitation allows the separation of pigmented material at room temperature. The objective of this work was to determine the effect of cationic and anionic flocculants on fractionation of alfalfa green juice into two fractions: chloroplastic (green LPC) and cytoplasmatic (white LPC).     

芦蒿汁饮料的护色工艺

以芦蒿叶为原料 ,经过护色、榨汁、离心、调配、均制、杀菌等工艺 ,制成色泽较好、营养丰富、口感良好 ,并具有特殊风味的绿色浑浊蔬菜汁饮料 .同时以Zn2 +、Cu2 +为护色剂 ,对芦蒿汁加工工艺中的护色问题作了初步的研究 ,并对使用单一稳定剂稳定芦蒿汁作了初步的探讨 .     

Pasta Fortified with Potato Juice: Structure,Quality, and Consumer Acceptance

The potential of potato juice in relieving gastrointestinal disorders has already been proven. Work continues on implementation of this active component into products that are widely consumed. In this article, results of an attempt to fortify pasta with potato juice are presented and discussed. Fortification is performed using fresh and dried juice. The influence of the addition on culinary properties of the final product, such as cooking weight and cooking loss, as well as microstructure, color, texture, and consumer acceptance were evaluated. It was found that potato juice can be used for fortification of pasta both in its fresh and dried forms, however the effects on different responses depend on the potato juice form used. The addition of potato juice influenced the color of the product reducing its lightness and shifting color balances from green to red, yellow color saturation was decreased as well. Changes in color were more significant in the case of fresh juice addition. The firmness and microstructure of pasta was also influenced. The surface microstructure of pasta containing fresh potato juice was different from that of the other 2 products being a likely explanation of the lower cooking loss observed in its case. In contrast, the consistency of dough was strengthened by addition of dried potato juice. Principal components analysis indicated that the color change had the most pronounced effect on consumer acceptance. Other physicochemical changes were slightly less significant. Nevertheless, sensory evaluation proved that functional pasta produced with fresh potato juice finds consumer acceptance comparable with that of classic pasta.     

Application of polyelectrolytes to fractionation of alfalfa juice protein

The quantities of protein which can be extracted from green plants depend on a number of factors such as the botanical composition of the plant, its growth stage, topdressing and system of extraction [1, 7, 8]. Leaf protein concentrates have been incorporated into food for human consumption, but their green color has limited its application [6, 9]. Thermal precipitation of chloroplastic material is not specific, causes denaturation and requires high energy input [9]. A selective recovery of the green fraction is possible by centrifugation at high centrifugal forces or by the combination of this method with an addition of calcium salt to a green juice [3, 4]. Application of high molecular polyelectrolytes in green juice precipitation allows the separation of pigmented material at room temperature [2, 5]. The objective of this work was to determine the effect of cationic and anionic flocculants on fractionation of alfalfa green juice into two fractions: chloroplastic (green LPC) and cytoplasmatic (white LPC).     

芹菜黄瓜复合蔬菜汁的研制

以黄瓜、芹菜为主要原料,以感官评分作为评定标准,通过单因素实验和正交试验,最终确定黄瓜、芹菜复合蔬菜汁的最优配方为黄瓜、芹菜配比为4∶1、白糖添加量为25g、柠檬酸添加量为0.6g、蜂蜜添加量为6g。所制得的蔬菜汁浅黄绿色透明,开瓶有香气,酸甜爽口、滋味宜人,组织状态均匀、无杂质。     

绿色蔬菜复合汁的研究

为开发新一代饮料,针对不同的蔬菜,采用不同取汁方法。莴笋叶、芹菜、菠菜等绿色蔬菜经K2CO3、NaOH和锌液护色后取汁;胡萝卜经碱液去皮、高压蒸煮后取汁;莴笋(茎)、蕃茄、冬瓜等瓜果类经灭酶加水取汁;蘑菇经浸提取汁。通过正交试验,获得最佳复合蔬菜汁的配方,再用热处理和冷藏澄清法配合使用,经调香可得成品。成品呈绿色,有光泽,有蔬菜汁的清香,风味适口,无煮熟味、生青味和其它异味,无分层现象,菜汁含量>40%,总糖5%~10%,无致病菌检出。     

3种天然彩色豆腐的加工工艺

以青菜和芦蒿混合汁、胡萝卜汁、黑芝麻汁和大豆为原料 ,研制了 3种天然彩色豆腐 ,得到了其最佳生产工艺参数 .该产品改变了传统豆腐原有的色泽和风味 ,营养更丰富 ,膳食结构更为合理