FERULIC ACID SUBSTITUTION OF CELL WALL POLYSACCHARIDES OF WHEAT BRAN

1981 ◽  
Vol 9 (2) ◽  
pp. 165P-165P ◽  
Author(s):  
M. M. Smith ◽  
R. D. Hartley ◽  
T. Galliard
Keyword(s):  
Cell Wall ◽  
Ferulic Acid ◽  
Wheat Bran ◽  
Cell Wall Polysaccharides

scholarly journals Regulation of the Feruloyl Esterase (faeA) Gene from Aspergillus niger

1999 ◽  
Vol 65 (12) ◽  
pp. 5500-5503 ◽  
Author(s):  
Ronald P. de Vries ◽  
Jaap Visser
Keyword(s):  
Cell Wall ◽  
Aspergillus Niger ◽  
Ferulic Acid ◽  
Methoxy Group ◽  
Plant Cell Wall ◽  
Ring Structure ◽  
Feruloyl Esterase ◽  
Cell Wall Polysaccharides ◽  
Aromatic Residues ◽  
Encoding Gene

ABSTRACT Feruloyl esterases can remove aromatic residues (e.g., ferulic acid) from plant cell wall polysaccharides (xylan, pectin) and are essential for complete degradation of these polysaccharides. Expression of the feruloyl esterase-encoding gene (faeA) fromAspergillus niger depends on d-xylose (expression is mediated by XlnR, the xylanolytic transcriptional activator) and on a second system that responds to aromatic compounds with a defined ring structure, such as ferulic acid and vanillic acid. Several compounds were tested, and all of the inducing compounds contained a benzene ring which had a methoxy group at C-3 and a hydroxy group at C-4 but was not substituted at C-5. Various aliphatic groups occurred at C-1. faeA expression in the presence of xylose or ferulic acid was repressed by glucose. faeA expression in the presence of ferulic acid and xylose was greater thanfaeA expression in the presence of either compound alone. The various inducing systems allow A. niger to produce feruloyl esterase not only during growth on xylan but also during growth on other ferulic acid-containing cell wall polysaccharides, such as pectin.

scholarly journals Phenolic compounds as cross-links of plant derived polysaccharides

2004 ◽  
Vol 22 (SI - Chem. Reactions in Foods V) ◽  
pp. S64-S67 ◽  
Author(s):  
M. Bunzel ◽  
J. Ralph ◽  
H. Steinhart
Keyword(s):  
Cell Wall ◽  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Sinapic Acid ◽  
Cell Wall Polysaccharides ◽  
The Past ◽  
Maize Bran ◽  
Cross Links

Plant cell wall polysaccharides are partially cross-linked via phenolic compounds. As shown in the past, the most important phenolic compounds to cross-link plant cell-wall polysaccharides are ester-linked ferulic acid dimers, but p-coumarate dimers were also shown to be potential cross-linking compounds. Recently, ferulic acid dimers were identified and quantified in a range of cereal grains. The isolation of 8-O-4-dehydrodiferulic aciddiarabinoside from maize bran shows that diferulic acids are able to form intermolecular cross-links between arabinoxylans. The more recently identified sinapic acid dehydrodimers and ferulic acid dehydrotrimers provide additional contributions to building up a strong network of plant cell wall polysaccharides.

Relationships between Soybean Seed Cell Wall Polysaccharides, Yield, and Seed Traits

Crop Science ◽  
2003 ◽  
Vol 43 (2) ◽  
pp. 571 ◽  
Author(s):  
S. K. Stombaugh ◽  
J. H. Orf ◽  
H. G. Jung ◽  
D. A. Somers
Keyword(s):  
Cell Wall ◽  
Soybean Seed ◽  
Seed Traits ◽  
Cell Wall Polysaccharides ◽  
Seed Cell
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