484:
Alexiou, I.E. and Panter, K. (2004). A review of two phase applications to define best practice for the treatment of various waste streams. Anaerobic
Digestion 10th World Congress, September 2004. Montreal, Quebec,
519:
Laroche, M. (1983). Metabolisme intermediaire des acides gras volatils en fermentation methanique. These de
Docteur – Ingenieur en Sciences Alimentaires_Fermentations. Institut National de la Recherche Agronomique,
497:
CairĂł, J.J. and ParĂs, J.M. (1988). MicrobiologĂa de la digestiĂłn anaerobia, metanogĂ©nesis. 4o
Seminario de DepuraciĂłn Anaerobia de Aguas Residuales. Valladolid. F.F. Polanco, P.A. GarcĂa y S. Hernándo. (Eds.) pp.
242:
By its side, the acidogenic activity was found in the early 20th century, but it was not until the mid-1960s that the engineering of phases separation was assumed in order to improve the stability and
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Dinopolou, G., Rudd, T. and Lester, J.N. (1987). Anaerobic acidogenesis of a complex wastewater: I. The influence of operational parameters on reactor performance. Biotech. And Bioeng. 31: 958 – 968.
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which inhabilite the hydrogen use, so they can produce three molecules of acetate from fructose. Acetic acid is equally a co-
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and methane by syntrophic cultures of
Acetobacterium woodii y Methanosarcina barkeri. Arch. Microbiol. 121: 97 – 102.
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produced are metabolized to acetate, hydrogen and carbonic gas by the three main groups of bacteria:
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Acidogenesis: A biological reaction where simple monomers are converted into volatile
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Winter, J.U. and Wolfe, R.S. (1979). Complete degradation of carbohydrates to CO
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into methane and carbon dioxide. It is a stabilization process, reducing odor,
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286:). The hydrolyzed compounds are fermented into volatile fatty acids (acetate,
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418:, etc.) by diverse groups of microorganisms which produce different acids:
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is one of the main reactions of this stage, in this, the intermediary
58:: A biological reaction where volatile fatty acids are converted into
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are able to reduce the carbonic gas to acetate, but they do not have
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Marchaim, U. (1992). FAO Agricultural
Services Bulletin – 95:
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Hetero-fermentative bacteria (acetate, propionate, butyrate,
192:. The reduced end-products of glucose fermentation are
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132:. One fundamental question that arises concerns the
343:production are considered three kind of bacteria:
475:of the United Nations, ISSN 1010-1365 (1/9/2003).
181:bacterium because it forms molecular hydrogen (
83:and carbon dioxide, while hydrogen is consumed.
266:into soluble compounds by hydrolytic enzymes (
8:
16:Second of four stages of anaerobic digestion
471:process for sustainable development, FAO –
372:Winter y Wolfe, in 1979, demonstrated that
200:, via the following mechanisms: lactate by
144:flow to a given reduced end-product during
22:is the second stage in the four stages of
386:, instead of three molecules of acetate.
406:of the organic substrates fermentation (
382:produce methane and carbon dioxide from
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165:, hydrolytic bacterium, which ferments
95:mediated reactions by a consortium of
7:
188:), in addition to lactic acid and
14:
473:Food and Agriculture Organization
87:Anaerobic digestion is a complex
376:in syntrophic association with
306:, hydrogen and carbon dioxide.
298:), neutral compounds (ethanol,
365:Clostridium termoautotrophicum
171:Embden–Meyerhof Parnas Pathway
75:: A biological reaction where
1:
33:: A chemical reaction where
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37:are solubilized and large
395:Clostridium formiaceticum
246:. In this phase, complex
244:waste digesters treatment
443:(acetate + lactate); and
158:Thermoanaerobium brockii
155:of hydrolytic bacteria.
41:converted into simpler
389:Moorella thermoacetica
177:is an atypical hetero-
136:features that control
124:end-products from the
560:Biochemical reactions
437:(butyrate + acetate);
237:alcohol dehydrogenase
214:lactate dehydrogenase
349:Clostridium aceticum
161:is a representative
550:Anaerobic digestion
79:are converted into
24:anaerobic digestion
357:Acetobacter woodii
227:; and ethanol via
120:form a variety of
216:; H2 by pyruvate
101:organic compounds
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379:Methanosarcina
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272:hemicellulases
221:oxidoreductase
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97:microorganisms
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73:Methanogenesis
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64:carbon dioxide
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194:enzymatically
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555:Bacteriology
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495:(in Spanish)
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400:hydrogenases
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310:Acetogenesis
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212:) activated
202:fructose 1-6
196:formed from
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163:thermophilic
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150:methanogenic
146:pure culture
126:fermentation
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93:biologically
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56:Acetogenesis
35:particulates
20:Acidogenesis
19:
18:
517:(in French)
434:Clostridium
429:+ acetate);
416:lactic acid
341:acetic acid
314:metabolites
225:hydrogenase
179:lactic acid
128:of a given
107:, and mass
99:to convert
91:process of
89:biochemical
60:acetic acid
50:fatty acids
544:Categories
455:References
427:propionate
425:bacteria (
404:metabolite
327:syntrophes
288:propionate
268:cellulases
218:ferredoxin
175:T. brockii
169:, via the
148:and mixed
115:Hydrolytic
31:Hydrolysis
423:Propionic
374:A. woodii
284:proteases
248:molecules
206:phosphate
134:metabolic
130:substrate
109:reduction
105:pathogens
450:, etc.).
448:valerate
412:glycerol
384:fructose
339:For the
300:methanol
292:butyrate
276:amylases
260:proteins
235:-linked
198:pyruvate
153:cultures
142:electron
118:bacteria
77:acetates
68:hydrogen
43:monomers
39:polymers
520:France.
485:Canada.
304:ammonia
296:lactate
280:lipases
190:ethanol
167:glucose
122:reduced
81:methane
498:41–51.
469:Biogas
408:sugars
294:, and
262:) are
258:, and
256:lipids
231:- and
138:carbon
66:, and
360:; and
329:; and
233:NADPH
392:and
282:and
229:NADH
223:and
204:all-
140:and
302:),
210:F6P
546::
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290:,
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239:.
173:.
111:.
62:,
26::
531:2
368:.
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335:.
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250:(
208:(
185:2
183:H
52:;
45:;
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