{"title":"Biotechnology. An industry comes of age. Washington: Academic Press, 1986, 10.50 Ł","authors":"M. Prause","doi":"10.1002/ABIO.370070305","DOIUrl":"https://doi.org/10.1002/ABIO.370070305","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"14 1","pages":"226-226"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82052096","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":"Progress in industrial microbiology. Vol. 23 Microorganisms in the Production of Food, Amsterdam: Elsevier Science Publ., 1986, 316 S., 76 $","authors":"W. Bechstedt","doi":"10.1002/ABIO.370070513","DOIUrl":"https://doi.org/10.1002/ABIO.370070513","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"2 1","pages":"440-440"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90841021","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}
Production of D-amino acid oxidase, L-aromatic aminotransferase and aromatic lactate dehydrogenase by several yeast species was examined. Of 16 strains tested, Trigonopsis variabilis and Rhodosporidium toruloides were found to be most suitable for D-amino acid oxidase production, T. variabilis and Brettanomyces anomalus for L-aromatic aminotransferase production, and Hansenula polymorpha, Cryptococcus terreus, and Candida maltosa for aromatic lactate dehydrogenase production. This selection is based on a high amount of enzyme activity as well as a broad enzyme specificity. The data will be reported here.
{"title":"D‐amino acid oxidase, aromatic L‐amino aminotransferase, and aromatic lactate dehydrogenase from several yeast species: Comparison of enzyme activities and enzyme specificities","authors":"R. Bode, D. Birnbaum","doi":"10.1002/ABIO.370070304","DOIUrl":"https://doi.org/10.1002/ABIO.370070304","url":null,"abstract":"Production of D-amino acid oxidase, L-aromatic aminotransferase and aromatic lactate dehydrogenase by several yeast species was examined. Of 16 strains tested, Trigonopsis variabilis and Rhodosporidium toruloides were found to be most suitable for D-amino acid oxidase production, T. variabilis and Brettanomyces anomalus for L-aromatic aminotransferase production, and Hansenula polymorpha, Cryptococcus terreus, and Candida maltosa for aromatic lactate dehydrogenase production. This selection is based on a high amount of enzyme activity as well as a broad enzyme specificity. The data will be reported here.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"12 1","pages":"221-225"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77031089","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}
Strains of Cellulomonas isolated from enrichment cultures with cellulose powder were cultivated with hempstalk wastes as the sole carbon source in a mineral medium. The yields of protein were not significantly different using the crude or alkali pretreated substrate in flasks experiments. Up to 12.5% protein was obtained on the untreated substrate with the best strain cultivated in a small fermenter.
{"title":"Production of single‐cell protein with cellulomonas sp. on hempstalk wastes","authors":"H. Jeder, A. Deschamps, J. Lebeault","doi":"10.1002/ABIO.370070202","DOIUrl":"https://doi.org/10.1002/ABIO.370070202","url":null,"abstract":"Strains of Cellulomonas isolated from enrichment cultures with cellulose powder were cultivated with hempstalk wastes as the sole carbon source in a mineral medium. The yields of protein were not significantly different using the crude or alkali pretreated substrate in flasks experiments. Up to 12.5% protein was obtained on the untreated substrate with the best strain cultivated in a small fermenter.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"54 1","pages":"103-109"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73016507","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":"An essay on the importance of being nonlinear. Lecture Notes in Biomathematics, Vol. 62. Berlin, Heidelberg, New York, Tokyo: Springer‐Verlag, 1985. 204 S., 36 DM","authors":"T. Bley","doi":"10.1002/ABIO.370070203","DOIUrl":"https://doi.org/10.1002/ABIO.370070203","url":null,"abstract":"","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"51 6 1","pages":"110-110"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80226898","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}
In recent years there have been a lot of works on the accumulation and removal of heavy metals from aqueous solutions and industrial waste waters by different kinds of microorganisms. A variety of microorganisms are known to be tolerant to mercury, copper, chromium, silver, cadmium etc., or to have a high accumulation capacity for these elements. But nothing is known about the interactions between microorganisms and REE*-ions in aqueous solutions. The objectives of our experiments were to determine the ability of various microorganisms to accumulate REE and to determine what possible effects, in terms of growth, different REE-ion concentrations may have on the bacteria cultures. Experiments on the accumulation of La and Pr by a freeze dried bacteria mixed culture, carried out with model solutions, showed that the accumulation process is completed few minutes after contact. The uptake is independent on pH-value and temperature and amounts up to 63 mg REE/g biomass in both cases. A gram+ bacterium spec., isolated from an industrial waste water, accumulates large quantities of REE in dependence on the pre-treatment of the cells, e.g. in the case of resting or freeze dried cells up to 100 mg/g biomass and in the case of heat treated cells up to 40 mg/l.
{"title":"Wechselwirkungen zwischen seltenen Erdmetallen und Mikroorganismen","authors":"M. Bullmann, U. Iske, F. Glombitza, B. Dittrich","doi":"10.1002/ABIO.370070506","DOIUrl":"https://doi.org/10.1002/ABIO.370070506","url":null,"abstract":"In recent years there have been a lot of works on the accumulation and removal of heavy metals from aqueous solutions and industrial waste waters by different kinds of microorganisms. A variety of microorganisms are known to be tolerant to mercury, copper, chromium, silver, cadmium etc., or to have a high accumulation capacity for these elements. But nothing is known about the interactions between microorganisms and REE*-ions in aqueous solutions. The objectives of our experiments were to determine the ability of various microorganisms to accumulate REE and to determine what possible effects, in terms of growth, different REE-ion concentrations may have on the bacteria cultures. Experiments on the accumulation of La and Pr by a freeze dried bacteria mixed culture, carried out with model solutions, showed that the accumulation process is completed few minutes after contact. The uptake is independent on pH-value and temperature and amounts up to 63 mg REE/g biomass in both cases. A gram+ bacterium spec., isolated from an industrial waste water, accumulates large quantities of REE in dependence on the pre-treatment of the cells, e.g. in the case of resting or freeze dried cells up to 100 mg/g biomass and in the case of heat treated cells up to 40 mg/l.","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"1 1","pages":"409-412"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83592292","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}
This paper deals with fermenters with energy introduced by gas phase (FG), having contacting devices, of laboratory, pilot and industrial scale. It is an attempt to state the possible use of such apparata in view of the rheological properties of the culture and intensity of mass transfer. There has been proved the necessity to introduce additional energy to speed up the circulation, determined by requirements of rational construction and definite demands set forth by the very process of microorganism cultivation (prevention of oxygen limitation, flotation, foam regulation etc.).
{"title":"Development of the design of fermenters with energy introduced by aerating gas, having contacting devices","authors":"V. D. Prokopenko, U. Viesturs","doi":"10.1002/ABIO.370060404","DOIUrl":"https://doi.org/10.1002/ABIO.370060404","url":null,"abstract":"This paper deals with fermenters with energy introduced by gas phase (FG), having contacting devices, of laboratory, pilot and industrial scale. It is an attempt to state the possible use of such apparata in view of the rheological properties of the culture and intensity of mass transfer. There has been proved the necessity to introduce additional energy to speed up the circulation, determined by requirements of rational construction and definite demands set forth by the very process of microorganism cultivation (prevention of oxygen limitation, flotation, foam regulation etc.).","PeriodicalId":7037,"journal":{"name":"Acta Biotechnologica","volume":"8 1","pages":"325-338"},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87354482","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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