己酸菌LⅡ己酸发酵过程中生理及代谢特点

在了解了产己酸细菌ＬＩＩ的发酵最适条件的基础上，进一步对己酸发酵过程中的生理及代谢特性作了较详细的分析。结果表明，在己酸发酵过程中除产生正常代谢产物己酸外，还产生丁酸、乙酸、戊酸等其它酸类和甲烷，氢气和ＣＯ_２等气体。用１—^１３Ｃ－乙酸钠和未标记的乙醇作为底物发酵，用色质联用仪（ＧＣ／ＭＳ）分析，结果表明：在己酸合成中碳的来源为乙醇和乙酸，中间代谢产物为丁酸。

MORE STUDIES ON CAPROATE-PRODUCING BACTERIALII

on the detection of the optimum condihons of the caproate fermentahon,we analyzed thePhysiology and metabolism characteristic in the process of the fermentation.The results showsthat the metabolite concerns acetate,butyrate,CH4,CO2 and so on exact caproate.Using thestable isotope 1-13C sodium acetate and ethanol as the substrate we analysis the fermented fluid by thetechnology of the GC/MS.It shows that the butyrate is the medium in the synthesis of caproate andthe consuming rate of ethanol and acetate is 2.5:1 approximately.