Flavonol Changes in Seedlings of Vigna mungo During Growth

Mato, Masami; Ishikura, Nariyuki

doi:10.1016/s0176-1617(11)80896-5

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Both hotand cold-water extracts prepared contained detectable amounts of six flavonoids, i.e., robinin, rutin, kaempfer-ol, quercetin, isoquercitrin, and kaempferol-7-O-rhamnoside (Figure 3), which were identified by HPLC (Figure 4). This result was consistent with the report by Mato and Ishikura (1993). We further examined the changes in flavonoid contents in the extracts during the germination phase of mung beans.…”

Section: Roosupporting

confidence: 93%

“…Isolation and Identification of Flavonoids from Mung Bean Sprouts. Flavonoids from mung bean sprouts (Japanese moyashi) were isolated according to the literature (Mato and Ishikura, 1993). Mung beans were germinated at 25 °C on water-soaked cotton in Petri dishes, and the beans or the sprouts were illuminated at 10 klx for 18 h/day under a white fluorescent lamp.…”

Section: Methodsmentioning

confidence: 99%

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Alkylperoxyl Radical-Scavenging Activity of Various Flavonoids and Other Phenolic Compounds: Implications for the Anti-Tumor-Promoter Effect of Vegetables

Sawa

Nakao

Akaike

et al. 1998

J. Agric. Food Chem.

305

173

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We recently reported that alkylperoxyl radical (ROO(*)) enhanced carcinogenesis in rats treated with carcinogen (Sawa et al. Cancer Epidemiol. Biomarkers Prev. 1998, 7, 1007-1012), and the tumor promoting action of ROO(*) could be reduced by addition of hot-water extracts of vegetables (Maeda et al. Jpn. J. Cancer Res. 1992, 83, 923-928). Here we described the ROO(*)-scavenging activity of flavonoids and nonflavonoid phenolics and their role in anti-tumor-promoter effects. A model molecular species, ROO(*), was generated from tert-butyl hydroperoxide (t-BuOOH) and heme iron, and the scavenging of t-BuOO(*) was determined by (a) bioassay based on the bactericidal action of ROO(*), (b) luminol-enhanced chemiluminescence, and (c) electron spin resonance. Of 17 authentic plant phenolics tested, 9 compounds (including rutin, chlorogenic acid, vanillin, vanillic acid, neohesperidin, gallic acid, shikimic acid, rhamnetin, and kaempferol) showed remarkably high ROO(*)-scavenging activity. Some of them were detected and quantified in hot-water extracts of mung bean sprouts, used as the model vegetable, and their contents increased after germination, which paralleled very well to the ROO(*)-scavenging capacity of the vegetable extracts. Thus, a diet rich in these radical scavengers would reduce the cancer-promoting action of ROO(*). Consequently, the carcinogenic potentials of oxygen-related radicals may be suppressed.

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Section: Roosupporting

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Alkylperoxyl Radical-Scavenging Activity of Various Flavonoids and Other Phenolic Compounds: Implications for the Anti-Tumor-Promoter Effect of Vegetables

Sawa

Nakao

Akaike

et al. 1998

J. Agric. Food Chem.

305

173

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“…Despite sequence homology with enzymes of the flavonoid pathway, neither of the two major dihydroflavonols found in Vigna radiata (Ishikura et al . 1981;Mato & Ishikura 1993), namely dihydroquercitin and dihydromyricetin, were found to be substrates for VR‐ERE. Therefore, the VR‐ERE protein cannot be considered as either a CAD or a DFR, although well‐conserved regions are shared by all three proteins (Fig.…”

Section: Resultsmentioning

confidence: 97%

A novel NADPH‐dependent aldehyde reductase gene fromVigna radiataconfers resistance to the grapevine fungal toxin eutypine

et al. 1998

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SummaryEutypine, 4-hydroxy-3-(3-methyl-3-butene-1-ynyl) benzyl aldehyde, is a toxin produced by Eutypa lata, the causal agent of eutypa dieback of grapevines. It has previously been demonstrated that tolerance of some cultivars to this disease was correlated with their capacity to convert eutypine to the corresponding alcohol, eutypinol, which lacks phytotoxicity. We have thus purified to homogeneity a protein from Vigna radiata that exhibited eutypinereducing activity and have isolated the corresponding cDNA. This encodes an NADPH-dependent reductase of 36 kDa that we have named Vigna radiata eutypine-reducing enzyme (VR-ERE), based on the capacity of a recombinant form of the protein to reduce eutypine into eutypinol. The strongest homologies (86.8%) of VR-ERE at the amino acid level were found with CPRD14, a drought-inducible gene of unknown function, isolated from Vigna unguiculata and with an aromatic alcohol dehydrogenase (71.7%) from Eucalyptus gunnii. Biochemical characterization of VR-ERE revealed that a variety of compounds containing an aldehyde group can act as substrates. However, the highest affinity was observed with 3-substituted benzaldehydes. Expression of a VR-ERE transgene in Vitis vinifera cells cultured in vitro conferred resistance to the toxin. This discovery opens up new biotechnological approaches for the generation of grapevines resistant to eutypa dieback.

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“…Hypocotyl and stem tissues of black gram form all three quercetin glycosides, thus their flavonol composition is quite different from that of young leaves. [8] Milled fractions of black gram shows distribution of Cglycosyl flavones and higher concentrations of C-glycosyl flavones are present in husk fractions. These compounds were identified as vitexin and isovitexin.…”

Section: Bioactive Components Of the Plant 21 Flavonoidsmentioning

confidence: 96%

A Review Bioactive Components of Vigna mungo

Dhumal

Chaudhari²,

Chavan

2019

J. Drug Delivery Ther.

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The bioactive compound is secondary plant metabolites eliciting pharmacological or toxicological effects in man and animals. Legumes are a valuable source of proteins and nutrients for the majority of the world population. Vigna mungo is one of the important legume crops extensively cultivated in India and other parts of the world. Pulses and legumes have been gaining interest because they are an excellent source of bioactive compounds. The objective of this present review is to compile all relevant information published regarding bioactive components from the Vigna mungo. Various bioactive components reported in Vigna mungo were found and it includes flavonoids, isoflavonoids, phytoestrogens, phenolic acids, enzymes, fibers, starches, trypsin inhibitors, phytic acid, lectins, saponins, tocopherols, fatty acids and proteins. This review clearly demonstrates that Vigna mungo is rich in bioactive components and these components are located in various organs of the plant.

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Flavonol Changes in Seedlings of Vigna mungo During Growth

Cited by 7 publications

References 4 publications

Alkylperoxyl Radical-Scavenging Activity of Various Flavonoids and Other Phenolic Compounds: Implications for the Anti-Tumor-Promoter Effect of Vegetables

Alkylperoxyl Radical-Scavenging Activity of Various Flavonoids and Other Phenolic Compounds: Implications for the Anti-Tumor-Promoter Effect of Vegetables

A novel NADPH‐dependent aldehyde reductase gene fromVigna radiataconfers resistance to the grapevine fungal toxin eutypine

A Review Bioactive Components of Vigna mungo

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