Budi Putri Ayu Andina, Budi Putri Ayu
Chemistry Department, Faculty of Sciences and Technology Airlangga University

Published : 1 Documents Claim Missing Document
Claim Missing Document

Found 1 Documents

Exploration of Lipase Enzyme from Soil through Metagenomic Approach Sumarsih, Sri; Baktir, Afaf; Andina, Budi Putri Ayu
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UNEJ e-Proceeding

Show Abstract | Download Original | Original Source | Check in Google Scholar


This research aimed to explore lipase enzyme from soil through metagenomic approach. The DNA was extracted directly from the topsoil and river sediment by SDS-based lysis method. The soil genomic DNA was sheared into approximately 40-kb fragments The construction of genomic library was carried out by cloning the fragment DNA into  fosmid pCC2FOS vector and host E. coli EPI300-T1R accordance with the protocols of CopyControl™ Fosmid production library kit. Screening of lipase-producing clones was performed based on its lipolytic activity using Luria-Bertani agar plate 12.5 µg/ ml chloramphenicol, 10 µg/ml Rhodamine B and 1 % olive oil as a substrate. The assay plates were incubated at 550 C. The lipolytic activity was identified as an orange around colonies. There were 5 (five) clones of 32 screened-clones that expressed lipolytic activity. The next research will characterize the enzyme and determine the sequence of the enzyme-encoding gene. Keywords: Lipase, soil, metagenomic, fosmid vector, pCC2FOS, E. coli EPI300-T1R