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Asian Journal of Biological and Life sciencesNOW IN
Article

Isolation and Identification of Bacteria Producing Extracellular Protease from Port Dickson Seashore, Negeri Sembilan and Kelana Jaya Lake, Selangor

Abdullah Yahya1, Mohammed Razip Samian2, Aida Baharuddin1★★ Corresponding author

  1. 1Department of Biotechnology, Faculty of Science, Lincoln University Collage MALAYSIA, Kelana Jaya Campus, No 2, Jalan Stadium SS7/15, Kelana Jaya, 47301, Selangor, MALAYSIA.
  2. 2School of Biological Sciences, University Sains Malaysia, 11800 Minden, Pulau Pinang, MALAYSIA.

CORRESPONDENCE

Aida Baharuddin

Department of Biotechnology, Faculty of Science, Lincoln University Collage MALAYSIA, Kelana Jaya Campus, No 2, Jalan Stadium SS7/15, Kelana Jaya, 47301, Selangor, MALAYSIA.

envelope910@gmail.com

Received: 22-04-2017; Revised: 19-05-2017; Accepted: 20-06-2017.

Volume 6, Issue 2 · pp. 321–329 · PUBLISHED 30 August 2017 · DOI:

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ABSTRACT

This study was conducted to isolate extracellular protease producing bacteria from the Port Dickson seashore and Kelana Jaya Lake using clear zone formation assay on skim milk agar medium. The extracellular protease producing bacteria identifications were based on morphological examination, Gram staining, oxidase test, lactose fermentation test, catalase test, hemolysis test and bioMérieux's API® identification system. Nine isolates, namely S1, S19, S25, L20, L21, L30, L40, L41, L44, exhibited hydrolysis capacity (HC) between 1.5 to 2.3 when incubated at 30°C for 24, 48, and 72 hour periods. The sea isolate, namely S19, exhibited the highest HC after 24, 48, and 72 h at 30ºC. S19 was identified as Bacillus cereus 2 by API 50 CHB/20E. The second-best HC was represented by lake isolate L20 and identified as Pseduomonas aeruginosa by the API 20NE system.

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    Yahya, A., Samian, M. R., & Baharuddin, A. (2017). Isolation and Identification of Bacteria Producing Extracellular Protease from Port Dickson Seashore, Negeri Sembilan and Kelana Jaya Lake, Selangor. Asian Journal of Biological and Life sciences, 6(2), 321–329.