| Biosynthesis of vanillin via ferulic acid in Vanilla planifolia. | |
| | |
MedLine Citation:
|
PMID: 19817415 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
(14)C-Labeled phenylalanine, 4-coumaric acid, 4-hydroxybenzaldehyde, 4-hydroxybenzyl alcohol, ferulic acid, and methionine were applied to disks of green vanilla pods 3 and 6 months after pollination (immature and mature pods), and the conversion of these compounds to vanillin or glucovanillin was investigated. In mature green vanilla pods, radioactivities of 11, 15, 29, and 24% from (14)C-labeled phenylalanine, 4-coumaric acid, ferulic acid, and methionine, respectively, were incorporated into glucovanillin within 24 h. In the incorporation processes of methionine and phenylalanine into glucovanillin, some of the (14)C labels were also trapped by the unlabeled ferulic acid. However, (14)C-labeled 4-hydroxybenzaldehyde and 4-hydroxybenzyl alcohol were not converted to glucovanillin. On the other hand, in immature green vanilla pods radioactivities of the above six compounds were not incorporated into glucovanillin. Although 4-coumaric acid, ferulic acid, 4-hydroxybenzaldehyde, and 4-hydroxybenzyl alcohol were converted to the respective glucose esters or glucosides and vanillin was converted to glucovanillin, their conversions were believed to be from the detoxication of the aglycones. These results suggest that the biosynthetic pathway for vanillin is 4-coumaric acid --> --> ferulic acid --> --> vanillin --> glucovanillin in mature vanilla pods. |
| | |
Authors:
|
Osamu Negishi; Kenji Sugiura; Yukiko Negishi |
Related Documents
:
|
22290395 - Disruption of phospholipid and bile acid homeostasis in mice with nonalcoholic steatohe... 19071305 - Determination of phenolic acids using trametes versicolor laccase. 16080715 - Modification of high-lignin kraft pulps with laccase. part 2. xylanase-enhanced strengt... 15030215 - Phenolic composition of strawberry genotypes at different maturation stages. 11302165 - Molecular cloning, dna sequence, and expression of the gene encoding for thermostable p... 15056975 - Suppression of the bitterness of enteral nutrients using increased particle sizes of br... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of agricultural and food chemistry Volume: 57 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2009 Nov |
Date Detail:
|
Created Date: 2009-11-05 Completed Date: 2010-02-17 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
|
Languages: eng Pagination: 9956-61 Citation Subset: IM |
Affiliation:
|
Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan. negishi@sakura.cc.tsukuba.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Benzaldehydes
/
chemistry,
metabolism* Biosynthetic Pathways* Coumaric Acids / chemistry, metabolism* Vanilla / chemistry, metabolism* |
| Chemical | |
Reg. No./Substance:
|
0/Benzaldehydes; 0/Coumaric Acids; 0/glucovanillin; 1135-24-6/ferulic acid; 121-33-5/vanillin; 7400-08-0/4-coumaric acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Study on the Role of Precursors in Coffee Flavor Formation Using In-Bean Experiments.
Next Document: Emerging Opportunities for Flavor Analysis through Hyphenated Gas Chromatography (dagger).