1969
DOI: 10.1016/0043-1354(69)90020-7
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The proteolytic bacteria present in the anaerobic digestion of raw sewage sludge

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Cited by 34 publications
(11 citation statements)
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“…This occurs under intensive protein degradation that involves the use of one amino acid as electron donor and another as electron acceptor, thus resulting in deamination and decarboxylation of the amino acid (Atlas, 1996). The predominant presence of Clostridium in anaerobic sludge samples taken from a domestic sewage treatment plant was previously reported by Siebert and Torien (1968). In fact, according to The Merck Index (1996), approximately 70% of the gelatin composition is due to the presence of only five amino acids (glycin, alanin, prolin, glutamate and arginin).…”
Section: Resultsmentioning
confidence: 87%
“…This occurs under intensive protein degradation that involves the use of one amino acid as electron donor and another as electron acceptor, thus resulting in deamination and decarboxylation of the amino acid (Atlas, 1996). The predominant presence of Clostridium in anaerobic sludge samples taken from a domestic sewage treatment plant was previously reported by Siebert and Torien (1968). In fact, according to The Merck Index (1996), approximately 70% of the gelatin composition is due to the presence of only five amino acids (glycin, alanin, prolin, glutamate and arginin).…”
Section: Resultsmentioning
confidence: 87%
“…1 a). Proteobacteria are frequently reported to be present at high proportion in anaerobic sludge [ 24 ]. Groups of Proteobacteria as Rhizobiales, Rhodobacterales, Sphingomonadales and Burkholderiaels – Comamonadaceae found in this work have been also reported in studies related to microalgae-based wastewater treatment [ 25 ].…”
Section: Resultsmentioning
confidence: 99%
“…This trait has been widely investigated in saccharolytic clostridia (McInerney, 1988;Paster et al, 1993;Attwood et al, 1998) but not in asaccharolytic clostridia (Nanninga et al, 1987;Guangsheng et al, 1992;Zindel et al, 1988). Published data indicate that such bacteria may play an important role in the cycling of nitrogen, sulfur and carbon in diverse ecosystems such as the rumen (Attwood et al, 1998), human colon (Smith & Macfarlane, 1997) and waste digesters (Siebert & Toerien, 1969). We have recently initiated studies on understanding the role of obligate amino-acidoxidizing and/or -fermenting anaerobic bacteria in dairy waste digesters.…”
Section: Introductionmentioning
confidence: 99%