Free and bound phenolic acids of lucerne (Medicago sativa cv europe)

Newby, Vilas K.; Sablon, Rose-Marie; Synge, R. L. M.; Casteele, Karel Vande; Sumere, C. F. Van

doi:10.1016/0031-9422(80)87032-4

Cited by 55 publications

(22 citation statements)

References 12 publications

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“…Vanillic acid, syringaldehyde, and acetovanillone were not identified in the chloroform extract, while they appeared as major components in the methanol-toluene and ethanol-toluene extracts. These data agreed with those in the study of Newby et al (1980) in which only small amounts of free phenolic monomers were isolated from alfalfa. However, during an investigation of alfalfa hay, soybean stover, smooth bromegrass hay, and corn stalk, Jung et al (1983) established that no free phenolic monomers could be extracted from the above materials using ether as a solvent and state that the phenolic monomers generally occur in the bound form in plant cells.…”

Section: Resultssupporting

confidence: 93%

Fractional Characterization of Wheat Straw Lignin Components by Alkaline Nitrobenzene Oxidation and FT-IR Spectroscopy

Lawther

Sun

Banks

1996

J. Agric. Food Chem.

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A method was developed for the isolation and fractional characterization of phenolic monomers in wheat straw lignin using (a) methanol/toluene, ethanol/toluene, or chloroform extraction for isolation of free phenolic monomers; (b) treatments with various alkalis and hydrogen peroxide for different lengths of time to extract loosely bound phenolic acids and aldehydes; and (c) alkaline nitrobenzene oxidation of lignin in the residue of alkali-treated wheat straw, extracted hemicellulose, and cellulose for determination of tightly bound phenolics. The yield of free phenolic monomers ranged from 0.007 to 0.031% of dry straw. The predominant components of the alkali-labile free monomers were found to be ferulic and p-coumaric acid, which together comprised 65?82% of the total. The results of alkaline nitrobenzene oxidation indicated a high guaiacyl content in the original wheat straw and a high relative syringyl content in treated wheat straw. A comparison of FT-IR spectroscopic data of untreated and treated wheat straw illustrated that the most obvious features in the spectra of alkaline treated wheat straw were the disappearance of the ester linkage absorption and reduced lignin content in treated wheat straw

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Section: Resultssupporting

confidence: 93%

Fractional Characterization of Wheat Straw Lignin Components by Alkaline Nitrobenzene Oxidation and FT-IR Spectroscopy

Lawther

Sun

Banks

1996

J. Agric. Food Chem.

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“…Plants can also contain free or nonesterified aromatic compounds, such as ferulic acid, p-coumaric acid, vanillic acid, and p-hydroxybenzoic acid in water extracts of alfalfa (Newby, Sablon, Synge, Casteele, & van Sumere, 1980), and ferulic acid, p-coumaric acid, and caffeic acid in various grasses and legumes (Cherney, Anliker, Albrecht, & Wood, 1989) ( Figure 5). In addition, b-glucosides of o-coumaric acid, coumarinic acid and melilotic acid have been identified in plants as well as their metabolic product, coumarin (Kosuge & Conn, 1959;Kosuge & Conn, 1961) ( Figure 5).…”

Section: Other Aromatic Plant Compoundsmentioning

confidence: 98%

Aromatic Metabolism of Filamentous Fungi in Relation to the Presence of Aromatic Compounds in Plant Biomass

Mäkelä

Marinovíc

Nousiainen

et al. 2015

Advances in Applied Microbiology

106

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“…VAM colonization can increase accumulation of isoflavonoid phytoalexins, 43 ' but showed no consistent pattern for other phenolics. 443 Purified extracts containing pisatin from pea seedlings infected with Fusarium solani showed no inhibitory effect to Glomus mosseae when added up to 50(xl/ml of medium, but reduced germination by nearly 50% when applied at 100 ixl/ml.…”

Section: Vesicular-arbuscular Mycorrhiza (Vam)mentioning

confidence: 98%

Significance of phenolic compounds in plant‐soil‐microbial systems

Siqueira¹,

Nair²,

Hammerschmidt³

et al. 1991

Critical Reviews in Plant Sciences

269

139

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Numerous reports have been published on the occurrence, isolation, and characterization of phenolic compounds in plant-soil systems. The low molecular weight phenolics are of great interest because of their effects as allelopathic compounds and plant growth regulators, and they have traditionally been considered as defense molecules in plant-pathogen interactions. More recently, their role as signal molecules in plantmicrobe systems has become evident. Specific molecules can act either as inducers for virulent genes in plantpathogen systems, such as Agrobacterium, or as inducers and "repressors" in Rhizobium-legumc and probably other symbiosis. The overall regulation role of these compounds in compatible and incompatible host-microbe interactions is discussed in this review.

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Free and bound phenolic acids of lucerne (Medicago sativa cv europe)

Cited by 55 publications

References 12 publications

Fractional Characterization of Wheat Straw Lignin Components by Alkaline Nitrobenzene Oxidation and FT-IR Spectroscopy

Fractional Characterization of Wheat Straw Lignin Components by Alkaline Nitrobenzene Oxidation and FT-IR Spectroscopy

Aromatic Metabolism of Filamentous Fungi in Relation to the Presence of Aromatic Compounds in Plant Biomass

Significance of phenolic compounds in plant‐soil‐microbial systems

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