Journal of Fermentation Technology最新文献_第2页

Production of xylitol from D-xylulose by Mycobacterium smegmatis 耻垢分枝杆菌用d -木糖糖生产木糖醇的研究

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90126-4

Ken Izumori, Keiji Tuzaki

引用次数: 47

Stability of plasmid-bearing microorganisms in batch and continuous cultures 含质粒微生物分批培养和连续培养的稳定性

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90131-8

Pi-Chao Wang, Hisao Ohtake, Kiyoshi Toda

{"title":"Stability of plasmid-bearing microorganisms in batch and continuous cultures","authors":"Pi-Chao Wang, Hisao Ohtake, Kiyoshi Toda","doi":"10.1016/0385-6380(88)90131-8","DOIUrl":"10.1016/0385-6380(88)90131-8","url":null,"abstract":"<div>The stability of five microbial strains bearing a domestic and/or exotic plasmid was investigated in continuous culture to obtain basic information on the fate of genetically engineered microorganisms released in the natural environment.The three strains with an exotic plasmid were constructed by the conjugal or mobilized transfer of conjugative plasmid R100-1 and non-conjugative plasmid RSF2124. Plasmid loss occurred only at the declining growth phase of batch culture of the transconjugants; the ratio of plasmid-free cells was 40–50% at the end of the culture, independent of the strains, whereas the plasmid in the native host cells was maintained at almost 100% of stability.In continuous culture of the transconjugant cells, the population ratio of plasmid-free cells at the pseudo-steady state was between 5–80% depending on the strain. The plasmid-bearing cells were not washed out of the continuous fermentor for 43 generations but maintained their quasi-stable concentration with some degree of oscillation. Simultaneous loss and retransfer of the plasmid from and to its host cells is suggested for the explanation.</div>","PeriodicalId":15702,"journal":{"name":"Journal of Fermentation Technology","volume":"66 1","pages":"Pages 63-70"},"PeriodicalIF":0.0,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0385-6380(88)90131-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86636879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Culture conditions of Aspergillus oryzae for production of enzyme preparation 米曲霉生产酶制剂的培养条件

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90085-4

Tadanobu Nakadai, Seiichi Nasuno

引用次数: 21

Grain spirits making with use of uncooked maize and its flavor components 用未煮熟的玉米及其风味成分酿造谷物酒

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90076-3

Akira Nose, Kimio Iwano, Satoshi Shinoki, Mitsuo Hirai, Kiyoshi Yoshizawa

引用次数: 0

Ethanol production in simultaneous saccharification and fermentation of cellulose with temperature profiling 同时糖化和发酵纤维素的乙醇生产与温度分布

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90083-0

Shih Yow Huang, Jyn Chern Chen

{"title":"Ethanol production in simultaneous saccharification and fermentation of cellulose with temperature profiling","authors":"Shih Yow Huang, Jyn Chern Chen","doi":"10.1016/0385-6380(88)90083-0","DOIUrl":"10.1016/0385-6380(88)90083-0","url":null,"abstract":"<div>The effects of temperature on enzymatic saccharification of cellulose and simulataneous saccharification and fermentation (SSF) were investigated with 100 g·l−1 Solka Floc, 5g·l−1Trichoderma reesei cellulase, and Zymomonas mobilis ATCC 29191. The following results were obtained: 1) Ethanol fermentation under glucose dificient conditions can proceed for more than 100 h at 30°C but gradually ceases after 50 h of operation at 40°C. 2) Equivalent glucose yield based on cellulose for SSF operated at its optimum temperature (37°C) is higher than that for enzymatic saccharification of cellulose at the same temperature by 32%. However, the same equivalent glucose yields were obtained for both processes if they were operated at their respective optimum temperature. 3) SSF with temperature cycling increased the ethanol productivity but gave similar ethanol yield to SSF at 37°C. 4) SSF with temperature profiling gave an ethanol yield of 0.32 g·g−1 and cellulose use of 0.86 g·g−1 which were increased by 39% and 34% over SSF with temperature cycling and at 37°C.</div>","PeriodicalId":15702,"journal":{"name":"Journal of Fermentation Technology","volume":"66 5","pages":"Pages 509-516"},"PeriodicalIF":0.0,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0385-6380(88)90083-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89804384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Oxidation of Hydroxylamine by Pseudomonas putida 恶臭假单胞菌氧化羟胺

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90097-0

引用次数: 0

Author and subject index 作者和主题索引

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90098-2

引用次数: 0

Cooling aspects of solid-state cultures of mesophilic and thermophilic fungi 中温和嗜热真菌固态培养的冷却方面

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90072-6

W. Grajek

引用次数: 25

Continuous CH4 Production from H2 and CO2 by Methanobacterium thermoautotrophicum in a fixed-bed reactor 热自养甲烷菌在固定床反应器中由H2和CO2连续生成CH4的研究

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90054-4

Hae Sung Jee, Naomichi Nishio, Shiro Nagai

引用次数: 47

Production of d-tagatose from d-galactitol by Mycobacterium smegmatis 耻垢分枝杆菌用d-半乳糖醇生产d-塔格糖

Journal of Fermentation Technology Pub Date : 1988-01-01 DOI: 10.1016/0385-6380(88)90052-0

Ken Izumori, Keiji Tsuzaki

引用次数: 53