Comparison of the Strength of Biodegradation of Pyrene between Symbiont Bacteria of Marine Sponges and Bacteria Isolated from Seawater

Abstract

PAHs contaminants have toxic, carcinogenic, and even mutagenic properties. Screening bacteria from different sources capable of carrying out the biodegradation of PAHs is important for mapping and mobilization purposes and applying them to polluted hydrocarbon environments. The study aimed to compare the biodegradation power of two types of bacteria isolated from different sources against PAHs. The method applied is the interaction between bacterial suspension and pyrene contaminated waste for 30 days. Biodegradation products in organic compounds were analyzed using GC-MS and FTIR. The analysis results found several indications of the performance of bacterial biodegradation, namely: the aggressiveness of biodegradation of Bl bacteria against pyrene was relatively more dominant than Sb bacteria. Percentage of total bacterial biodegradation product type Sb (39.00 %), while the product of bacterial degradation type Bl (38.29 %); the biodegradation products of the test bacteria (Bl and Sb) were relatively similar to pyrene, in the form of alcohol and carboxylic acid organic compounds. It was concluded that there was no significant difference in biodegradation performance between Bl and Sb bacteria on pyrene. Both types of bacterial isolates from different sources can carry out the function of biodegradation of Pyrene.