Mountfort D O, Asher R A
Appl Environ Microbiol. 1978 Apr;35(4):648-54. doi: 10.1128/aem.35.4.648-654.1978.
In an anaerobic digestor which was fed daily with bovine waste, during the early stages after feeding (4 to 7 h) acetate (via the methyl group) accounted for almost 90% of the methane produced. As time after feeding increased, acetate declined as a precursor so that in the 12- to 14-h and 21- to 23-h periods, after feeding the methyl group accounted for 80 and 73% of the methane produced, respectively. Measurements of methane production from CO2 reduction showed that in the 2- to 12-h period after feeding, CO2 accounted for 14% of the methane produced, whereas in the 12- to 24-h period it accounted for 27-5%. These results show that the percentages of methane accounted for by acetate and CO2 vary with time after feeding the digestor.
在一个每日投喂牛粪的厌氧消化器中，投喂后的早期阶段（4至7小时），乙酸盐（通过甲基）产生的甲烷占所产生甲烷总量的近90%。随着投喂后时间的增加，乙酸盐作为甲烷前体的比例下降，以至于在投喂后的12至14小时以及21至23小时期间，甲基产生的甲烷分别占所产生甲烷的80%和73%。对由二氧化碳还原产生甲烷的测量表明，在投喂后的2至12小时期间，二氧化碳产生的甲烷占所产生甲烷的14%，而在12至24小时期间，这一比例为27%至5%。这些结果表明，乙酸盐和二氧化碳产生的甲烷比例会随消化器投喂后的时间而变化。
