The application belongs to the technical field of biological
resource utilization, and more particularly relates to a method for biological
resource utilization of seafood waste. The method specifically comprises the following steps: 1)
drying and crushing seafood waste for standby; 2) inoculating
lactic acid bacteria into a
fermentation medium, adding the seafood waste obtained in step 1) in an amount of 10-30 g / 100 mL, at a temperature of 40-45 DEG C, a rotation speed of 50-200 rpm, and fermenting for 36-72 h; when the
sugar concentration of the
fermentation broth is reduced to 10 g / L or less, start
sugar supplementing, and the total
sugar consumption in the
fermentation process is not more than 150 g / L; 3) when the pH value of the
fermentation broth is reduced to 4.5-5.0, the fermentation is completed, and the obtained precipitate is used for preparing
chitin; and the filtered
fermentation broth is used for extracting
lactic acid or lactate. The
lactic acid fermentation coupled with the seafood waste decalcification and deproteinization method established in the application does not need to add other organic
nitrogen sources in the
lactic acid fermentation process, and the fermentation medium and crab shells can not be sterilized, thereby effectively saving the treatment cost.