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Enhanced production of lipase by the thermophilic Geobacillus stearothermophilus strain-5 using statistical experimental designs

Paper ID Volume ID Publish Year Pages File Format Full-Text
33824 44992 2010 7 PDF Available
Title
Enhanced production of lipase by the thermophilic Geobacillus stearothermophilus strain-5 using statistical experimental designs
Abstract

Statistically based experimental designs were applied to optimize the cultural conditions for the production of a glycerol-inducible lipase from the thermophilic Geobacillus stearothermophilus strain-5. The effect of nineteen culture conditions on enzyme production was evaluated using Plackett–Burman factorial design. Tween 80, K2HPO4, glycerol and glucose were the most significant factors in improving enzyme production. The selected parameters were then further investigated using central composite design to define the optimal process conditions. Maximal enzyme activity (578 U/ml) was reached under the following conditions: glycerol, 2.24% (v/v); Tween 80, 0.76% (v/v); glucose, 0.76% (w/v) and K2HPO4, 0.38% (w/v) which is about five folds the activity in basal medium. A verification experiment was carried out to examine model validation and revealed more than 98% validity.

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Enhanced production of lipase by the thermophilic Geobacillus stearothermophilus strain-5 using statistical experimental designs
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 27, Issue 4, 30 September 2010, Pages 330–336
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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