Relationship of microbial population with pit mud thickness of construction pits of Luzhou-flavor liquor

The relationship of microbial population and pit mud thickness of construction pits about Luzhou-flavor liquor was studied.The results showed that: the order of quantity of aerobic bacteria and aerobic zygotomere in wall pit mud is 150mm50mm100mm.The quantity of anaerobic bacteria and anaerobic zygotomere in wall pit mud were gradually increased with pit mud thickness.The quantity of aerobic bacteria,aerobic zygotomere in bottom pit mud were gradually decreased with pit mud thickness increased,while the quantity of anaerobic bacteria and anaerobic zygotomere in bottom pit mud were not significantly related to pit mud thickness.The quantity of mold and yeast was at low level in different thickness of pit mud.