Biodiversity of Cellulolytic Bacteria Isolated from the Solid Wastes of Agar Seaweed Processing Industry
Abstract: Agar is
polysaccharide extracted from the seaweed Gracilaria sp. It is commonly used
for food, medical, pharmaceutical and biotechnology industries. The red seaweed
Gracilaria verrucosa is the most common material used for the extraction of
agar, processed into sheet and powder. A total of 7169 tons solid waste is
produced from the agar industry in Indonesia which can further result in 4301.4
tons per year of cellulose. However, solid wastes from agar seaweed processing
industry have not been managed and used optimally, and therefore seaweed solid
wastes can be used as one of alternative source of cellulose and cellulolytic
bacteria. In this research, we reported the isolation of cellulose-producing
bacteria from seaweed processing industry wastes using specific media 1 % LIA
(Limbah Industri Agar, waste of seaweed processing industry). Sequencing and
subsequent phylogenetic analysis of the 16S rRNA genes amplified from the
obtained 7 isolates identified them as Serratia marcescens, Chryseobacterium
indovlogenes, Bacillus pumilus, Bacillus cereus, Strenatrophomonas maltophila,
and Pseudomonas aeruginosa.
Keywords: solid waste, seaweed
processing, cellulolytic bacteria
Author: Ifah Munifah, Titi
Candra Sunarti, Hari Eko Irianto, Anja Meryandini
Journal Code: jpperikanangg150034
