Interaction between lactic acid bacteria and yeasts in airag,an alcoholic fermented milk     

SUDUN  WULIJIDELIGEN  Kensuke ARAKAWA  Mari MIYAMOTO  Taku MIYAMOTO 《Animal Science Journal》2013,84(1):66-74

The interaction between nine lactic acid bacteria (LAB) and five yeast strains isolated from airag of Inner Mongolia Autonomic Region, China was investigated. Three representative LAB and two yeasts showed symbioses were selected and incubated in 10% (w/v) reconstituted skim milk as single and mixed cultures to measure viable count, titratable acidity, ethanol and sugar content every 24 h for 1 week. LAB and yeasts showed high viable counts in the mixed cultures compared to the single cultures. Titratable acidity of the mixed cultures was obviously enhanced compared with that of the single cultures, except for the combinations of Lactobacillus reuteri 940B3 with Saccharomyces cerevisiae 4C and Lactobacillus helveticus 130B4 with Candida kefyr 2Y305. C. kefyr 2Y305 produced large amounts of ethanol (maximum 1.35 g/L), whereas non‐lactose‐fermenting S. cerevisiae 4C produced large amounts of ethanol only in the mixed cultures. Total glucose and galactose content increased while lactose content decreased in the single cultures of Leuconostoc mesenteroides 6B2081 and Lb. helveticus 130B4. However, both glucose and galactose were completely consumed and lactose was markedly reduced in the mixed cultures with yeasts. The result suggests that yeasts utilize glucose and galactose produced by LAB lactase to promote cell growth.  相似文献   

利用乳酸菌生产传统发酵食品研究进展     

陈其钢  温明显 《农产品加工．学刊》2013,(9)

传统发酵食品种类丰富,风味独特,是食品工业重要组成部分,乳酸菌是应用于传统食品发酵的重要菌株。通过对乳酸菌的基本特征及其在传统发酵食品生产中的应用进行分析,旨在为实现传统发酵食品工业化生产提供参考。  相似文献   

6种茶叶对斑点叉尾鮰生长性能及鱼肉中脂类的影响     

张尧北平  桑八一  宛晓春  周裔彬  杨严鸥  张建立 《中国饲料》2013,(19)

本试验选取黄山毛峰、霍山黄芽、龙井、屏山炒青、普洱、祁门红茶6种茶叶,在叉尾鮰鱼日粮中分别添加0%、1%、2%和4%的不同茶粉制成颗粒饲料;选择1.8 g左右的叉尾鮰幼鱼作试验对象,每组3个重复,饲养8周后,分析不同添加量和茶叶品种对叉尾鮰生长性能、饲料利用率和鱼肉中脂类的影响。结果表明：与未添加茶粉的对照组相比,添加1%的茶粉组叉尾鮰的增重率显著提高11.68%（P ＜0.01）,饲料系数显著降低10.55%（P ＜0.01）;添加4%茶粉组鱼肉脂肪含量降低12.43%（P＜0.05）,但增重率降低7.78%（P＜0.05）,综合比较6个茶叶组各测定指标得出,1%龙井茶可显著提高增重率,4%龙井茶可显著降低鱼肉脂肪含量;4%普洱茶能显著降鱼肉中胆固醇含量。  相似文献   

六堡茶、黑茶茶粉和普洱（熟茶）茶粉对Wistar大鼠调节血脂及抗氧化功能的比较研究     

赵宝权  邵宛芳  刘家奇  赵博  王鸿强  马溪懋  郭涛  侯艳 《云南农业大学学报(自然科学版)》2013,28(2):236-242

 比较六堡茶、黑茶茶粉和普洱（熟茶）茶粉对高脂血症Wistar大鼠的降血脂和抗氧化作用。将Wistar大鼠随机分为正常对照组、高脂模型组、药物组以及六堡茶、普洱（熟茶）茶粉和黑茶茶粉［低、中、高剂量组,即0.5,1.0,2.0g/kg(bw)］。试验大鼠灌胃授试茶样水浸提物30d后采血牺牲,取血分离血清测定血清中总胆固醇（TC）、甘油三酯（TG）、高密度脂蛋白胆固醇（HDLC）等血脂指标,并摘取大鼠肝脏匀浆测定超氧化物歧化酶（SOD）活力、谷胱甘肽过氧化物酶(GSH Px)活力及丙二醛(MDA)含量。六堡茶能够显著降低试验大鼠血清中TC, TG含量（P＜0.05）,普洱（熟茶）茶粉、黑茶茶粉对于控制大鼠血清中TC, TG含量效果不明显（P＞0.05）;普洱（熟茶）茶粉能够显著提高肝组织细胞中GSH Px酶和SOD酶活力,且能够降低MDA含量（P＜0.05）。六堡茶调节血脂水平功效显著优于黑茶茶粉及普洱（熟茶）茶粉,而普洱（熟茶）茶粉抗氧化能力显著好于六堡茶及黑茶茶粉。  相似文献   

不同含水率对奶牛TMR发酵过程中饲料品质的影响     

徐晓明  黄克和  徐国忠  张克春 《上海交通大学学报(农业科学版)》2011,29(1):81-87

试验研究不同含水率(40%、45%、50%、55%和60%)奶牛TMR发酵过程中饲料品质的动态变化.试验将不同含水率(40%、45%、50%、55%和60%)TMR装入发酵袋(28 cm×42cm)内抽真空后保存室内,第0d、第2d、第4d、第8d、第16d、第32d和第70d开袋后进行感官评定、营养物质含量和发酵指标...  相似文献   

Nutritional value of a new source of fermented soybean meal fed to growing pigs     

Charmaine D Espinosa  Maryane S F Oliveira  L Vanessa Lagos  Terry L Weeden  Aileen J Mercado  Hans H Stein 《Journal of animal science》2020,98(12)

Three experiments were conducted to test the hypothesis that the standardized ileal digestibility (SID) of amino acids (AA), concentrations of digestible energy (DE) and metabolizable energy (ME), and the standardized total tract digestibility (STTD) of P in a new source of fermented soybean meal (Fermex 200) are greater than in conventional soybean meal (SBM-CV). In experiment 1, 9 barrows (initial body weight: 9.17 ± 1.03 kg) were surgically fitted with a T-cannula in the distal ileum and allotted to a triplicated 3 × 3 Latin square design. A nitrogen-free diet and 2 diets that contained cornstarch and SBM-CV or Fermex 200 as the sole source of crude protein (CP), and AA were formulated. Results indicated that there were no difference between SBM-CV and Fermex 200 for SID of CP and AA. In experiment 2, 24 growing pigs (initial body weight: 14.19 ± 1.18 kg) were housed individually in metabolism crates. Pigs were allotted to a corn-based diet or 2 diets that contained corn and SBM-CV or corn and Fermex 200. Feces and urine samples were collected using the marker-to-marker approach with 5-d adaptation and 4-d collection periods. Results indicated that the concentration of DE and ME in Fermex 200 were not different from DE and ME in SBM-CV. In experiment 3, 40 barrows (initial body weight: 11.01 ± 1.38 kg) were allotted to 1 of 4 diets with 10 replicate pigs per diet. Four diets were formulated to contain Fermex 200 or SBM-CV and either 0 or 1,000 units/kg of microbial phytase. Pigs were housed individually in metabolism crates. Fecal samples were collected as explained for experiment 2. Results indicated that the STTD of P in Fermex 200 was greater (P < 0.01) than in SBM-CV, but the addition of microbial phytase to the diets increased the ATTD and STTD of P in SBM-CV, but not in Fermex 200 (interaction; P < 0.01). In conclusion, the SID of AA and concentrations of DE and ME in Fermex 200 were not different from values determined for SBM-CV, but the STTD of P was greater in Fermex 200 than in SBM-CV if microbial phytase was not added to the diet.  相似文献   

饲粮中添加发酵苹果渣对肉羊生产性能和血清指标的影响研究     

陈伯祥  李元新  赵子惠  杨明  成伟伟  郭慧琳 《饲料研究》2020,43(3):5-7

试验研究在肉羊上使用发酵苹果渣饲料的效果。对照组饲喂精料,试验组饲喂羊只的精料中分别添加5%、10%、15%、20%发酵苹果渣饲料。结果显示,试验组与对照组平均日增重及料重比差异显著(P<0.05),添加15%发酵苹果渣组肉羊日增重最显著;在日粮中添加发酵苹果渣能够显著的提高肉羊血清中胰岛素、生长素、T3和IL-6的含量;在日粮中添加15%发酵苹果渣可降低尿素氮含量、提高血液中葡萄糖含量。试验结果表明,在肉羊精料中加入15%发酵苹果渣饲料可明显提高平均日增重,降低了料重比,促进肉羊生长。  相似文献   

茶鲜叶匀浆悬浮发酵体系工艺放大指标的研究   总被引：8，自引：0，他引：8  

夏涛  童启庆 《安徽农业大学学报》2000,27(1):45-47

为实现悬浮发酵红茶工业生产,对影响发酵体系工艺放大指标－容量传质系数（ＫＬａ）的因素及ＫＬａ对红茶品质形成的影响进行了初步研究,结果表明,ＫＬａ受发酵体系中搅拌速率、温度、通气量、装液量的影响;添加某有机物可明显提高发酵体系的ＫＬａ;随ＫＬａ的增大,发酵液中茶黄素类（ＴＦｓ）含量提高。  相似文献   

内蒙古锡林郭勒盟传统奶油制品中乳酸菌的分离鉴定     

内蒙古锡林郭勒盟传统奶油制品中乳酸菌的分离鉴定 《畜牧与饲料科学》2020,41(4):55-59

对采集自内蒙古锡林郭勒盟正蓝旗的2份传统奶油制品进行了乳酸菌的分离鉴定,经过氧化氢酶试验、革兰染色和16S rDNA分子鉴定,共分离15株乳酸菌,被鉴定为1个属4个种,分别为1株类布氏乳杆菌、3株植物乳杆菌、4株短乳杆菌和7株副干酪乳杆菌。该研究拟为内蒙古传统乳制品的工业化生产及优良发酵剂的研发提供理论基础和菌种资源。  相似文献   

胡萝卜汁双歧杆菌发酵乳饮料的加工技术   总被引：2，自引：0，他引：2  

丁武寇莉苹  宋社果王丽 《西北农林科技大学学报(自然科学版)》2002,30(Z1):47-49

对双歧杆菌发酵乳饮料中胡萝卜汁、蔗糖的添加量进行了研究。结果表明 ,胡萝卜汁的添加量以10 0 g/ kg,蔗糖以 80 g/ kg为宜。按设定工艺生产 ,最终产品风味口感良好 ,无胡萝卜的不良风味 ,其活菌数达到 10 6m L- 1 ,β-胡萝卜素≥ 3.1mg/ L ,保质期 1个月  相似文献