Variation kinetics of chemical and bacterial contaminations of water containing yeast cells

Autor:	V. M. Kislenko, V. L. Starchevskii, N. L. Maksymiv, I. Z. Koval
Rok vydání:	2009
Předmět:	Biochemical oxygen demand chemistry.chemical_classification Autolysis (biology) biology Kinetics General Chemistry biology.organism_classification Yeast chemistry Biochemistry Oxidizing agent Organic matter Food science Anaerobic exercise Bacteria Water Science and Technology
Zdroj:	Journal of Water Chemistry and Technology. 31:269-273
ISSN:	1934-936X 1063-455X
Popis:	The article has investigated the variation in the concentration of yeast and saprogenic bacteria, the COD and pH of dispersions over time in aerobic and anaerobic conditions. It has been shown that under aerobic conditions the death and decay of yeast cells are described by the first order equation. The water COD in the surface layer is determined by the concentration of live yeast cells at the initial period and that of water-soluble products of heir decay 3–4 days after depending on the preparation time for yeast dispersions. Saprogenic bacteria start to actively propagate on 3–4th day from the beginning of the experiment. A medium for their propagation is water-soluble organic matter formed as a result of autolysis and oxidizing destruction of yeast cells. Upon the end of four days the amount of saprogenic bacteria remains constant over two months.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f827d9927688dc25850193ea3ed5ae5e https://doi.org/10.3103/s1063455x09040109 Zobrazit plný text záznamu Full text from SpringerLink