Fig 8From: Effects of carbon concentration, oxygen, and controlled pH on the engineering strain Lactiplantibacillus casei E1 in the production of bioethanol from sugarcane molassesRT-qPCR analysis of key enzyme gene expression under pH control and non-pH control . INV, invertase; GK, glucokinase; PFK, phosphofructokinase. a 4Â h; b 8Â h; c 12Â h; d 16Â h; e 24Â hBack to article page