Application of Lactobacillus plantarum ATCC 8014 for Wastewater Treatment in Fisheries Industry Processing

Abstract

In the present study, the bacterial inoculation and colonization of marine food wastewater with inoculated Lactobacillus plantarum ATCC 8014 was analyzed. Firstly, an inoculation standardization procedure of the bacteria in sterile wastewater, and examined the effect of this inoculation testing for pH kinetics, acidity, soluble proteins and bacterial growth were conducted. The results demonstrate that the inoculated strains have a tendency to decrease pH and to increase acidity, whereas non-inoculated strains had a tendency to keep or decrease acidity. Soluble proteins from the inoculated strains reached a maximum peak before non-inoculated strains. Colonization growth from the non-inoculated strains had a significant higher mortality compared to the inoculated bacteria. The effect of the inoculated L. plantarum on the raw wastewater colonization, with inoculum percentages of 1% and 5%, both with and without molasses were investigated. The results suggested that for both pH and acidity, the most effective inoculums were at 1%, whereas 5% inoculums proved to be effective in decreasing MPN of fecal coliforms and in BOD removal.