Results 211 to 220 of about 62,850 (256)
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Synthesis of benzyl cinnamate by enzymatic esterification of cinnamic acid
Bioresource Technology, 2015In this study, lipase catalysis was successfully applied in synthesis of benzyl cinnamate through esterification of cinnamic acid with benzyl alcohol. Lipozyme TLIM was found to be more efficient for catalyzing this reaction than Novozym 435. In order to increase the yield of benzyl cinnamate, several media, including acetone, trichloromethane ...
Yun, Wang +3 more
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Decarboxylative functionalization of cinnamic acids
Organic & Biomolecular Chemistry, 2015Decarboxylative functionalization of α,β-unsaturated carboxylic acids is an emerging area that has been developed significantly in recent years.
Arun Jyoti, Borah, Guobing, Yan
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THE MICROBIAL METABOLISM OF CINNAMIC ACID
Canadian Journal of Microbiology, 1964A strain of Pseudomanas isolated from soil with cinnamic acid as a sole carbon source was found to be simultaneously adapted to the utilization of cinnamic acid and phenylpropionic acid. During growth on either of these compounds, o-hydroxyphenylpropionic acid and 2,3-dihydroxyphenylpropionic acid were produced in the culture medium. The organism, when
E R, BLAKLEY, F J, SIMPSON
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Metabolism of Cinnamic Acid and Hydroxy-Cinnamic Acids by Lactobacillus pastorianus var. quinicus
Nature, 1959PREVIOUS work has shown that caffeic acid, 3 : 4 dihydroxy-cinnamic acid is metabolized by Lactobacillus pastorianus var. quinicus 1,2 with the formation of dihydrocaffeic acid and ethyl catechol3. A pure culture of this organism was inoculated into a basal medium1 with the addition of 0.025 per cent cinnamic acid and 0.25 per cent fructose.
G C, WHITING, J G, CARR
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Treatment of cinnamic acids with polyphosphoric acid
Journal of the Chemical Society, Chemical Communications, 1978Polyphosphoric acid has been found to isomerize cis-p-methoxycinnamic acid to trans-p-methoxycinnamic acid and to cleave a benzyl ether; however, there is no evidence for the previously reported trans- to cis-isomerization of cinnamic acids.
James Quick, Clifford Meltz
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Enzymatic Synthesis of Cinnamic Acid Derivatives
Biotechnology Letters, 2006Using Novozym 435 as catalyst, the syntheses of ethyl ferulate (EF) from ferulic acid (4-hydroxy 3-methoxy cinnamic acid) and ethanol, and octyl methoxycinnamate (OMC) from p-methoxycinnamic acid and 2-ethyl hexanol were successfully carried out in this study. A conversion of 87% was obtained within 2 days at 75 degrees C for the synthesis of EF.
Lee, G.-S., Widjaja, A., Ju, Y.-H.
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Reduction of cinnamic acid to cinnamaldehyde and alcohol
Biochemical and Biophysical Research Communications, 1968Abstract The reduction of the carboxylgroup of phenylacrylic acids to form aldehydes and primary alcohols has long been inferred in the formation of lignin. In spite of the fact, that the stepwise reduction of ferulic acid (3-methoxy-4-hydroxycinnamic acid) to coniferylaldehyde and alcohol during the formation of lignin has been demonstrated in ...
G G, Gross, K H, Bolkart, M H, Zenk
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Photodegradation of Cinnamic Acid in Different Media
Journal of Dispersion Science and Technology, 2008The photodegradation of cinnamic acid under UVB irradiation was evaluated in different vehicles, such as water solutions at different pH values, Tween‐20 micelles, liposomes, and O/W emulsions prepared with Xalifin 15 or Montanov 68 as emulsifiers. The increase of pH decreases the photodegradation of cinnamic acid in all the vehicles studied.
UGAZIO, Elena +5 more
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Biotechnology and Bioprocess Engineering, 2012
To perform the lipase-catalyzed synthesis of L-ascorbic acid derivatives from plant-based compounds such as cinnamic and ferulic acid under mild reaction conditions, the activities of immobilized Candida ntarctica lipase with different cinnamic acid esters and substituted cinnamic acids were compared. As a result, immobilized C.
Yung-Hun Yang +10 more
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To perform the lipase-catalyzed synthesis of L-ascorbic acid derivatives from plant-based compounds such as cinnamic and ferulic acid under mild reaction conditions, the activities of immobilized Candida ntarctica lipase with different cinnamic acid esters and substituted cinnamic acids were compared. As a result, immobilized C.
Yung-Hun Yang +10 more
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Non-natural cinnamic acid derivatives as substrates of cinnamate 4-hydroxylase
Phytochemistry, 2007Cinnamate 4-hydroxylase (C4H), a monooxygenase in the plant phenylpropanoid pathway, was assayed for its ability to hydroxylate 29 substrate analogues. Nine of the tested analogues with various aromatic side chains, including 3-coumaric acid, were metabolized by C4H.
Hao, Chen +2 more
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