Study on Pit Mud Lixivium from Different Years Pits by Gas Chromatography Mass Spectrometry

Abstract

This thesis analyzed pit mud lixivium of 20 years, 100 years, 200 years, and 300 years pit age by gas chromatography-mass spectrometry technology. Through analyzing experimental results, 20 kinds of substances were obtained, and 10 kinds of substances were mutual in all pit mud samples. After carefully analyzing many substances in every pit age, the conclusion was obtained that the longer the pit mud had been stored, the more substances it had, the more complicated components were in pit mud, the higher metabolize diversity microorganism had, and the better quality the liquor had.

Development of a real-time PCR for quantification of the family Syntrophomonadaceae in pit mud from ChineseLuzhou-flavour liquor distilleries

“…In this oxidation process, products such as acetate and H 2 can be used as substrates for the growth of methanogens, which are the dominant archaea in the pit mud . Fatty acids were detected in both the pit mud and liquors by gas chromatography , and long‐chain fatty acids could cause substrate toxicity in microbes owing to physical interactions with the cell wall . For this reason, the oxidation of long‐chain fatty acids could be conducive to the growth of microbes.…”