Effect of Sporulation Medium Content in Carbohydrates, Lipids, and Proteins on Outgrowth of Bacillus spp Spores Activated with Heat and Ethanol Solution

孢子 发芽 枯草芽孢杆菌 蜡样芽孢杆菌 食品科学 拉伤 营养物 作文(语言) 孢子萌发 蜡样体 生物 蔗糖 化学 碳水化合物 微生物学 生物化学 植物 细菌 生态学 语言学 哲学 遗传学 解剖
作者
Abraham Nkoue Tong,Sylvain Leroy Sado Kamdem,H. Djeudjeu Ngougue,F. X. Etoa
出处
期刊:Journal of advances in microbiology [Sciencedomain International]
卷期号:: 91-112 被引量:1
标识
DOI:10.9734/jamb/2022/v22i12697
摘要

Aims: evaluate the effect of the nutrient content of the medium on the sporulation percentage and the efficiency of ethanolic activation on the outgrowth of Bacillus spp. Place and Duration: Department of Microbiology of the University of Yaoundé I between june 2020 and September 2021. Methodology: In order to contribute to the understanding of the effect of the environment of spore origin on the ability to sporulate and outgrow in foods, spores of Bacillus cereus and Bacillus subtilis were produced in different media differenciated by the carbohydrates, lipids and proteins composition. Mathematical models predicting sporulation rates and germination yields of heat- and ethanol-activated spores were evaluated as a function of the factors selected. The reliability of these models was assessed by comparing the predicted values with those obtained in real food. Results: It was found that spores originating from high carbohydrates and proteins media had high sporulating and germination rates. It was found that the origin of the spores, mainly the carbohydrate and protein content, resulted in high sporulation rates and that spores from nutrient-rich media germinated faster than those from nutrient-poor media. Germination efficiency varied from strain to strain depending on the method of activation and the composition of the medium in which the spores were produced. The mathematical models obtained were validated in food matrices with correlation of predicted and observed values higher than 0.85. Conclusion: The ethanolic activation of spore varies depending on the strain and the nutrient content especially the fat content in sporulating medium. The proteins and carbohydrates have significant content for thermal activation.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
皮皮虾完成签到,获得积分10
刚刚
Russell完成签到 ,获得积分10
1秒前
nusiew完成签到,获得积分10
2秒前
mailgo完成签到,获得积分10
4秒前
Ricky完成签到,获得积分10
7秒前
我就想看看文献完成签到 ,获得积分10
7秒前
海丽完成签到 ,获得积分10
9秒前
zenabia完成签到 ,获得积分10
10秒前
yihuifa完成签到 ,获得积分10
13秒前
不安的晓灵完成签到 ,获得积分10
18秒前
尹沐完成签到 ,获得积分10
19秒前
自然亦竹完成签到,获得积分10
19秒前
等待香寒完成签到 ,获得积分10
20秒前
courage完成签到 ,获得积分10
22秒前
乐乐应助黑球采纳,获得10
24秒前
Jasper应助阳光的傲儿采纳,获得10
25秒前
刘秀完成签到 ,获得积分10
28秒前
王一生完成签到,获得积分10
31秒前
伯爵完成签到 ,获得积分10
34秒前
36秒前
38秒前
缓慢的绿草完成签到,获得积分10
38秒前
39秒前
元神完成签到 ,获得积分10
40秒前
41秒前
FashionBoy应助甜甜晓露采纳,获得10
47秒前
忆韶完成签到,获得积分10
47秒前
圆圆酱完成签到 ,获得积分10
48秒前
小不完成签到 ,获得积分10
50秒前
wp4455777完成签到,获得积分10
54秒前
思源应助科研通管家采纳,获得10
1分钟前
薰硝壤应助科研通管家采纳,获得10
1分钟前
薰硝壤应助科研通管家采纳,获得10
1分钟前
薰硝壤应助科研通管家采纳,获得10
1分钟前
sunzhou2008完成签到,获得积分10
1分钟前
雷锋完成签到 ,获得积分10
1分钟前
聪慧语山完成签到 ,获得积分10
1分钟前
和平使命应助请叫我鬼才采纳,获得10
1分钟前
golfgold完成签到,获得积分10
1分钟前
xz完成签到 ,获得积分10
1分钟前
高分求助中
좌파는 어떻게 좌파가 됐나:한국 급진노동운동의 형성과 궤적 2500
Sustainability in Tides Chemistry 1500
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Cognitive linguistics critical concepts in linguistics 800
Threaded Harmony: A Sustainable Approach to Fashion 799
Livre et militantisme : La Cité éditeur 1958-1967 500
氟盐冷却高温堆非能动余热排出性能及安全分析研究 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3052652
求助须知:如何正确求助?哪些是违规求助? 2709891
关于积分的说明 7418319
捐赠科研通 2354494
什么是DOI,文献DOI怎么找? 1246122
科研通“疑难数据库(出版商)”最低求助积分说明 605951
版权声明 595921