Selection of the Strain Lactobacillus acidophilus ATCC 43121 and Its Application to Brewers’ Spent Grain Conversion into Lactic Acid

Figure 2

Time courses of glucose concentration (), dry biomass concentration (), and lactic acid concentration () during fermentation of Lactobacillus acidophilus ATCC 43121 in (a) acid-alkaline treated brewer’s spent grain 1 hydrolysate, (b) acid-alkaline treated brewer’s spent grain 1 hydrolysate + yeast extract, (c) aqueous ammonia soaking treated brewer’s spent grain 2 hydrolysate, and (d) aqueous ammonia soaking treated brewer’s spent grain 2 hydrolysate + yeast extract. All values are media of three replications.

(a)

(b)

(c)

(d)