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Release of ferulic acid from corn cobs by alkaline hydrolysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
4521 230 2008 7 PDF Available
Title
Release of ferulic acid from corn cobs by alkaline hydrolysis
Abstract

The process of corn cobs alkaline hydrolysis to produce solutions with high hydroxy-cinnamic acids content was investigated. In particular the attention was focused on the solubilisation of ferulic acid (FA) and related compounds, mainly p-coumaric acid (p-CA). Although these compounds have applications as antioxidants, the purpose of this work was to obtain FA solutions that can be used as feedstock for the biotechnological production of vanillin in future studies. The effects of different concentrations of NaOH (0.2 ≤ Ca ≤ 2.0N) and solid/liquid ratios (0.028 ≤ S/L ≤ 0.168 g/g) on the solubilisation of FA versus time have been investigated at room temperature. Optimal hydrolysis conditions (Ca = 0.5N, S/L = 0.084 g/g after 6 h) ensured the production of hydrolysates with relatively high contents of both FA (1171 ± 34 mg/L) and p-coumaric acid (2156 ± 64 mg/L), which can be used in future studies for the microbial transformation into vanillin.

Keywords
Corn cobs; Alkaline hydrolysis; Ferulic acid; Coumaric acid; Phenolic compounds; Oligosaccharides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 40, Issue 3, 1 July 2008, Pages 500–506
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
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Any Questions? feel free to contact us