Bioreactor operated production of lipase: castor oil hydrolysis using partially-purified lipase.

Abstract:

:A highly stable lipase from Pseudomonas aeruginosa KKA-5 was produced by batch cultivation technique employing shake flask and 5 L-bioreactor. The bioreactor was run at different airflow rates. Low airflow rates (1 and 3 L/min), did not lead to effective growth and lipase production. Growth increased by about one order and lipase production increased by about 6 times, at an airflow rate of 5 L/min. Lipase production occurred during decelerated cell growth. A highly stable lipase was produced which retained its activity in the running bioreactor, even after a period of one month. This stable lipase was partially-purified using ammonium sulphate precipitation technique. Castor oil was hydrolyzed using 300U crude and partially-purified lipase, each. Approximately 21-fold, partially-purified lipase could hydrolyze 81% castor oil within a period of 96 hr, where as only 63% hydrolysis was obtained, in 216 hour, when crude lipase was used.

journal_name

Indian J Exp Biol

authors

Sharon C,Nakazato M,Ogawa HI,Kato Y

keywords:

subject

Has Abstract

pub_date

1999-05-01 00:00:00

pages

481-6

issue

5

eissn

0019-5189

issn

0975-1009

journal_volume

37

pub_type

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