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Vanillin: Bio-Synthetic Flavour Production from Paddy Straw

Lignocellulosic materials are important natural renewable resources. This is because it is low in cost, renewable and it requires low processing energies. Agricultural residues, such as paddy straw are sources for lignocellulosic materials. Paddy straws are unique in their chemical compositions a...

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Main Authors: A. Abdul Malek, M.N. Erni Faridah, M.A.G Hamilah
Format: Conference Paper
Language:English
Published: 2013
Subjects:
Lignocellulosics materials
Paddy straw
Ferulic acid
Vanilic acid
Vanillin
Online Access:http://ddms.usim.edu.my/handle/123456789/6138
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spelling my.usim-61382015-07-03T01:00:47Z Vanillin: Bio-Synthetic Flavour Production from Paddy Straw A. Abdul Malek M.N. Erni Faridah M.A.G Hamilah Lignocellulosics materials Paddy straw Ferulic acid Vanilic acid Vanillin Lignocellulosic materials are important natural renewable resources. This is because it is low in cost, renewable and it requires low processing energies. Agricultural residues, such as paddy straw are sources for lignocellulosic materials. Paddy straws are unique in their chemical compositions as well as their chemical, physical and mechanical properties. It consisting mainly of cellulose, hemicelluloses, lignin and a small amount of extractives. Vanillin (3-methoxy-4-hydroxybenzaldehyde) is the major component responsible for the characteristic of vanilla bean extracts. Due to the high cost of vanilla flavour, bio-synthetic flavour from lignocellulosic materials has been found to be new potential substrate for vanillin production rather than extraction from vanilla pod. A number of pretreatment methods of lignocellulosic materials to release lignin, cellulose and hemicelluloses are addressed such as chemical and stream pretreatment. Alkaline hydrolysis was chosen as the most suitable method to release ferulic acid for low lignin content biomass. Optimum conditions for vanillic acid obtained from alkaline hydrolysis using Sodium Hydroxide, NaOH of paddy straw at different temperature (80%. 90°C and 100°C) and NaOH concentration (3M, 4M and 5M) were 4M NaOH, 120°C for 2 hours which yielded 6.56 mglg of ferulic acid. The result obtained showed that lower concentration of NaOH, high temperature and longer reaction time have favored the ferulic acid formation. Bioconversion of ferulic acid to vanilic acid using an optimum condition using Aspergillus niger as the fermentative organism are then being used to vanillin production using Pycnoporus cinnabarinus. 2013-01-04T08:41:19Z 2013-01-04T08:41:19Z 2013-01-04 Conference Paper http://ddms.usim.edu.my/handle/123456789/6138 en
institution Universiti Sains Islam Malaysia
building USIM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universit Sains Islam i Malaysia
content_source USIM Institutional Repository
url_provider http://ddms.usim.edu.my/
language English
topic Lignocellulosics materials
Paddy straw
Ferulic acid
Vanilic acid
Vanillin
spellingShingle Lignocellulosics materials
Paddy straw
Ferulic acid
Vanilic acid
Vanillin
A. Abdul Malek
M.N. Erni Faridah
M.A.G Hamilah
Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
description Lignocellulosic materials are important natural renewable resources. This is because it is low in cost, renewable and it requires low processing energies. Agricultural residues, such as paddy straw are sources for lignocellulosic materials. Paddy straws are unique in their chemical compositions as well as their chemical, physical and mechanical properties. It consisting mainly of cellulose, hemicelluloses, lignin and a small amount of extractives. Vanillin (3-methoxy-4-hydroxybenzaldehyde) is the major component responsible for the characteristic of vanilla bean extracts. Due to the high cost of vanilla flavour, bio-synthetic flavour from lignocellulosic materials has been found to be new potential substrate for vanillin production rather than extraction from vanilla pod. A number of pretreatment methods of lignocellulosic materials to release lignin, cellulose and hemicelluloses are addressed such as chemical and stream pretreatment. Alkaline hydrolysis was chosen as the most suitable method to release ferulic acid for low lignin content biomass. Optimum conditions for vanillic acid obtained from alkaline hydrolysis using Sodium Hydroxide, NaOH of paddy straw at different temperature (80%. 90°C and 100°C) and NaOH concentration (3M, 4M and 5M) were 4M NaOH, 120°C for 2 hours which yielded 6.56 mglg of ferulic acid. The result obtained showed that lower concentration of NaOH, high temperature and longer reaction time have favored the ferulic acid formation. Bioconversion of ferulic acid to vanilic acid using an optimum condition using Aspergillus niger as the fermentative organism are then being used to vanillin production using Pycnoporus cinnabarinus.
format Conference Paper
author A. Abdul Malek
M.N. Erni Faridah
M.A.G Hamilah
author_facet A. Abdul Malek
M.N. Erni Faridah
M.A.G Hamilah
author_sort A. Abdul Malek
title Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
title_short Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
title_full Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
title_fullStr Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
title_full_unstemmed Vanillin: Bio-Synthetic Flavour Production from Paddy Straw
title_sort vanillin: bio-synthetic flavour production from paddy straw
publishDate 2013
url http://ddms.usim.edu.my/handle/123456789/6138
_version_ 1645151817438330880
score 13.226497

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