{"title":"Azospirillum. III. Genetics, Physiology, Ecology. Proceedings of the Third Bayreuth Azospirillum. Berlin, Heidelberg, New York, Tokyo: Springer‐Verlag 1985. 102 figs., 274 pp., 78 DM","authors":"E. Spanier","doi":"10.1002/ABIO.370070212","DOIUrl":"https://doi.org/10.1002/ABIO.370070212","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"83 1","pages":"156-156"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84245443","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}
A framework for modelling microbial growth is given in which the biological properties of the regulation of cell growth and proliferation are taken as a basis. Some stages on the way of formulating state-structure models are discussed. The resulting delay-differential equations are both comprehensible and suitable for a mathematical treatment.
{"title":"State‐structure models of microbial growth","authors":"T. Bley","doi":"10.1002/ABIO.370070216","DOIUrl":"https://doi.org/10.1002/ABIO.370070216","url":null,"abstract":"A framework for modelling microbial growth is given in which the biological properties of the regulation of cell growth and proliferation are taken as a basis. Some stages on the way of formulating state-structure models are discussed. The resulting delay-differential equations are both comprehensible and suitable for a mathematical treatment.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"134 1","pages":"173-177"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77862883","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}
M. Zeltina, M. Leite, J. Vanags, A. Apine, U. Viesturs
The review characterizes the submerged and solid state fermentation processes (SF and SSF) for obtaining of microbial biomass protein (MBP) on cellulose- and lignin-containing (CL) agricultural wastes (straw, wine, branches of fruit trees). There are discussed other alternatives as well. The main technological parametres are presented (protein (biomass) yield, degree of available substrate utilization, process efficiency, etc.). The use of a special stirring system of the authors' design for mycelial cultures results in an increase of CL substrate concentration in the initial nutrient medium from 2% to 8%of dry matter (DM) and in a threefold increase of the specific productivity (from 0.07 g biomass/l · h to 0.21 g biomass/l · h). The technological parametres can be increased also in the processes with substrate addition. The obtained preparations are analyzed as to their usefulness for the feeds of ruminants.
{"title":"Submerged fermentation of cellolignin materials (compared with solid‐state fermentation and other alternatives)","authors":"M. Zeltina, M. Leite, J. Vanags, A. Apine, U. Viesturs","doi":"10.1002/ABIO.370070214","DOIUrl":"https://doi.org/10.1002/ABIO.370070214","url":null,"abstract":"The review characterizes the submerged and solid state fermentation processes (SF and SSF) for obtaining of microbial biomass protein (MBP) on cellulose- and lignin-containing (CL) agricultural wastes (straw, wine, branches of fruit trees). There are discussed other alternatives as well. The main technological parametres are presented (protein (biomass) yield, degree of available substrate utilization, process efficiency, etc.). The use of a special stirring system of the authors' design for mycelial cultures results in an increase of CL substrate concentration in the initial nutrient medium from 2% to 8%of dry matter (DM) and in a threefold increase of the specific productivity (from 0.07 g biomass/l · h to 0.21 g biomass/l · h). The technological parametres can be increased also in the processes with substrate addition. The obtained preparations are analyzed as to their usefulness for the feeds of ruminants.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"72 1","pages":"157-166"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91066878","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}
{"title":"Bergey's manual of systematic bacteriology – Volume 2. baltimore, London, Los Angeles, Sidney: Williams and Wilkins, 1986. pp. 965–1599, 75 $","authors":"K. Karbaum","doi":"10.1002/ABIO.370070621","DOIUrl":"https://doi.org/10.1002/ABIO.370070621","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"19 1","pages":"568-569"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73220166","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}
A. Atev, C. Panayotov, L. G. Bobareva, L. Damyanova, U. D. Nicolova
The biosynthesis of cellulases and xylanase by the mould strain Trichoderma sp. M7 on submerged and solid-state cultivation conditions has been studied. The effect of different inducers on the enzyme biosynthesis on the conditions used was determined. The relation between the enzyme biosynthesis and the morphological state of the producing strain was studied. The advantages of the submerged cultivation conditions with regards to the efficiency of the enzyme inducer are shown.
{"title":"Studies on biosynthesis of hydrolases by trichoderma sp. M7 on submerged and solid‐state cultivation conditions","authors":"A. Atev, C. Panayotov, L. G. Bobareva, L. Damyanova, U. D. Nicolova","doi":"10.1002/ABIO.370070103","DOIUrl":"https://doi.org/10.1002/ABIO.370070103","url":null,"abstract":"The biosynthesis of cellulases and xylanase by the mould strain Trichoderma sp. M7 on submerged and solid-state cultivation conditions has been studied. The effect of different inducers on the enzyme biosynthesis on the conditions used was determined. The relation between the enzyme biosynthesis and the morphological state of the producing strain was studied. The advantages of the submerged cultivation conditions with regards to the efficiency of the enzyme inducer are shown.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"63 1","pages":"9-16"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83052397","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}
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