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Optimized synthesis of citronellyl flavour esters using free and immobilized lipase from Rhizopus sp.

Paper ID Volume ID Publish Year Pages File Format Full-Text
36642 45139 2005 5 PDF Available
Title
Optimized synthesis of citronellyl flavour esters using free and immobilized lipase from Rhizopus sp.
Abstract

Microbial lipase produced by Rhizopus sp. was tested for the synthesis of citronellyl butyrate and citronellyl valerate. Lipase showed more ability to catalyze the synthesis of citronellyl butyrate. This process was optimized using response surface methodology (RSM) based on a five-level, two variable central composite rotatable design (CCRD). The optimum conditions were molar ratio of 2.41:1 (alcohol: acid) and lipase amount of 6.12% (w/w) and the yield achieved 100% (molar conversion) in 48 h. Lipase was also immobilized onto celite and its activity improved, leading to 100% molar conversion in 24 h. However, immobilized lipase did not exhibited operational stability after a few reaction cycles.

Keywords
Enzymatic synthesis; Rhizopus sp. lipase; Citronellyl butyrate; Enzyme immobilization; Esterification; Central composite rotatable design (CCRD); Response surface methodology (RSM)
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Optimized synthesis of citronellyl flavour esters using free and immobilized lipase from Rhizopus sp.
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 10, October 2005, Pages 3181–3185
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
Full-text PDF Download
Online Support
Any Questions? feel free to contact us