Ferulic add

Coghe, S., Benoot, K., Delvaux, R, Vanderhaegen, B., Delvaux, F.R. (2004). Ferulic add Release and 4-Vinylguaiacol formation during brewing and fermentation Indications for feru-loyl esterase activity in Saccharomyces cerevisiae. J. Agric. Food Chem., 52, 602-608. 

In order to O-demethylate ferulic acid linked to arabinoxylans, the cellular extract of SR 3 was sonicated to release its demethylase activity. The consumption of free ferulic acid and the production of caffeic add by the sonicated SR3 cellular extract are presented in Table 2. After 18 h of reaction, the totality of ferulic acid has been used. Caffeic acid production was proportional to the consumption of ferulic acid during the first 5 h then caffeic acid concentration remained constant while ferulic add was still consumed. Caffeic acid was probably degraded by oxidation phenomena. Indeed, the use of a reducing agent (cysteine) can reduce the caffeic acid loss from 40% to 15%. With cysteine (ferulic acid/cysteine = 0.01), the final amount of caffeic acid yielded 84% of the initial free ferulic acid content after 18 h of reaction. 

Identification, Cloning and Expression of a Ferulic Add Esterase from Neurosporacrassa 31... 

Fig. 3 Effect of fenilic acid on the cellulase activities of H. jecorina after grown on untreated bermudagrass. The activities tested were FPAase (filled triangle) and P-glucosidase filled square). The CMCase activity was reduced to almost 0% in the presence of 0.02% (w/v) ferulic add. Standard deviations are presented by error bats...

Propenoio acid, 3-(3-hydroxy-4-methoxyphenyl)- cinnamic acid, 3-hydroxy-4-methoxy- ferulic acid The following numerous reports describe the identification of the cis- or trans- isomers of ferulic add 3712 ... 

The use of multicomponent matrices with accelerated sample drying along with a modified instrumental set-up was also considered when preparing samples for quantitative MALDI analysis. This method has been shown to improve the measured relative standard deviation (RSD) to better than 10% of analyte to internal standard (IS) intensity ratio [18]. Both, signal reproducibility and precision of the standard curve slope were improved by a factor of two when a DHB/fucose/5-methoxysaHcyUc acid multicomponent matrix was used compared to DHB alone. Similar results were observed when a feruhc acid/fucose multicomponent matrix was used compared to the use of ferulic add alone. 

Our laboratory used a number of different MALDI matrices (e.g., HCCA, sinapinic acid, ferulic add) for this work. HCCA is considered a hot matrix and favors the lower mass range generating singly, doubly. 

Minami S, Nomura E.Tanigucji H.TsunoT. Ferulic add ester antioxidant/UVabsorbent 1999. Patent US... 

Grotty BA, ZnaidenAP, Johnson AW. Improved cosmetic composition containing ferulic add esters 1999. Patent CA 2293800 Al. 

Fig. 2.23 Effects of ferulic add on absolute growth rates (cm /2 days) of cucumber seedlings growing in Portsmouth A soil as modified by pH (a) and corresponding percent inhibition (b) calculated from data in (a). Figures based on data from Blum et al. (1989). Plenum Publishing Corporation, data used with permission of Springer Science and Business Media...

Katase T (1981 a) Stereoisomerization of />-coumaric and ferulic acid during incubation in peat soU extract solution by exposure to fluorescent light. SoU Sci Plant Nutr 27 421-427 Katase T (1981b) The different forms in which -hydroxybenzoic, vanUlic, and ferulic adds exist in a peat soU. SoU Sci 132 436- 43... 

Lehman ME, Blum U (1999a) Influence of pretreatment stresses on inhibitory effects of feriUic acid, an allelopathic phenolic add. J Chem Ecol 25 1517—1529 Lehman ME, Blum U (1999b) Evaluation of ferulic add uptake as a measurement of aUelochemictil dose effective concentration. J Chem Ecol 25 2585-2600 Lehman ME, Blum U, Geiig TM (1994) Simultaneous effects of fetuhe and p-coumaric adds on cucumber leaf expansion in spht-root experiments. J Chem Ecol 20 1773-1782... 

Origin of Some Central Trivial Names. Some names were chosen according to the discovery of the corresponding compounds such as cinnamic acid [Cinnamomum verum Presl., cinnamon tree (Lauraceae)], coumaric acids/ coumarin [Dipterix odorata (Aubl.) Wu-ld. sub nom. Coumarouna odorata Aubl. (Fabaceae)], caf-feic acid [Coffea arabica L., coffee tree (Rubiaceae)], and ferulic add (Ferula spp., Apiaceae). Quinic acid is named according to its discovery as a constituent of cinchona bark [Cinchona L. spp. (Rubiaceae)] this compound was named according to the German Chinarinde (cinchona bark) - corrupted from quina (Spanish... 

Negrel J, PoUet B, Lapierre C (1996) Ether-linked ferulic add amides in natural and wound periderms of potato tubers. Phytochemistry 43 1195-1199 Nelson EK (1919) The constitution of capsaicin, the pungent prindple of Capsicum. J Am Chem Soc 41 1115-1121... 

A spedal feature is the presence of ferulic acid (its cis- and trans isomers in a ratio of about 1 1), which is 0.1-0.2% by weight of arabinoxylans. Ferulic acid is bound by an ester linkage at C-5 of the arabinose residue, which is connected to the C-3 of the xylose residue. In the secondary cell wads, ferulic add forms ethers, C-C dimers and addition products with thiol residues of proteins, which play an important role in the development of cross-Hnks between arabinoxylan molecules and other components of cell walls (Figure 4.18). Ferulic acid in Ugnified cells is bound to Hgnin. Proteins are also present (0.9-3.9% by weight) as in a number of other polysaccharides. 

The preservative BHT has been shown to have adverse effects on the liver and limgs [68, 69]. When mixed with another preservative, BHA, the BHA/BHT mixture enhances the limg toxicity. In another study, it was shown that BHA, eugenol methyl paraben, vanillin, gnaiacol, ferulic add, and other phenolic compounds used in food products enhanced the in vitro peroxidase-catalyzed covalent bonding of BHT to microsomal protein and the formation of BHT-qninone methide [70]. 

Methyl ferulate Ferulic add Esterase Lact. acidophilus... 

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