Distribution of isoflavones and coumestrol in neglected tropical and subtropical legumes

Leuner, Olga; Havlík, Jaroslav; Hummelova, Jana; Prokudina, E.A.; Nový, Pavel; Kokoška, Ladislav

doi:10.1002/jsfa.5835

Cited by 22 publications

(10 citation statements)

References 38 publications

(40 reference statements)

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“…The Soxhlet method has also been used for the extraction of isoflavones from solid samples of soybeans, soy products, and legumes. The extraction is performed using 90% aqueous MeOH (Klejdus and others ; Leuner and others ) or 80% aqueous ethanol (Xiao and others ; Yatsu and others ) as the solvents. Klejdus and others () proposed a modified Soxhlet extraction method consisting of a 2‐step temperature program.…”

Section: Sample Preparationmentioning

confidence: 99%

Analysis of Isoflavones in Foods

Bustamante-Rangel

Delgado-Zamarreño

Pérez‐Martín

et al. 2018

Comp Rev Food Sci Food Safe

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In recent years the nutritional and bioactive properties of foods are being intensively investigated with a view to control, in addition to food quality, their possible influence on human health. Because of this, there is a growing demand for rapid, selective, sensitive, and validated methods for analysis and quantification. Bioactive plant compounds include those with weak estrogenic activity (phytoestrogens), among which are the isoflavones. Some of the beneficial activities that have been attributed to isoflavones are anticarcinogenic activity, the prevention of cardiovascular disease, the improvement of bone health, and antioxidant activity. The objective of this work is to provide an updated review of the methods used in sample preparation and subsequent analysis for the determination of isoflavones in food samples, including both soybean and soy products, as well as other foods with low isoflavone contents. The review focuses on the most common sample preparation techniques used during the last 10 years, including both conventional solvent extraction and other more recent extraction techniques. Separation and detection methods, including current trends in liquid chromatography analysis, such as the use of monolithic columns or ultra-high-pressure liquid chromatography, are also discussed.

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Section: Sample Preparationmentioning

confidence: 99%

Analysis of Isoflavones in Foods

Bustamante-Rangel

Delgado-Zamarreño

Pérez‐Martín

et al. 2018

Comp Rev Food Sci Food Safe

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“…The unique ability of legumes (including many rainforest N 2 -fixing legume trees [ 62 , 63 ]) to synthesize and exude isoflavonoids [ 64 ] may also impact weathering rates. Isoflavonoids enhance phosphorus (P) and iron (Fe) solubilization from the mineral vivianite by acting as soil chelators (electronic supplementary material, figure S1) as well as by decreasing organic acid decomposition [ 65 ].…”

Section: Mechanisms Of N 2 -Fixing Legume-driven Ementioning

confidence: 99%

N₂-fixing tropical legume evolution: a contributor to enhanced weathering through the Cenozoic?

et al. 2017

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Fossil and phylogenetic evidence indicates legume-rich modern tropical forests replaced Late Cretaceous palm-dominated tropical forests across four continents during the early Cenozoic (58-42 Ma). Tropical legume trees can transform ecosystems via their ability to fix dinitrogen (N 2 ) and higher leaf N compared with non-legumes (35-65%), but it is unclear how their evolutionary rise contributed to silicate weathering, the long-term sink for atmospheric carbon dioxide (CO 2 ). Here we hypothesize that the increasing abundance of N 2 -fixing legumes in tropical forests amplified silicate weathering rates by increased input of fixed nitrogen (N) to terrestrial ecosystems via interrelated mechanisms including increasing microbial respiration and soil acidification, and stimulating forest net primary productivity. We suggest the high CO 2 early Cenozoic atmosphere further amplified legume weathering. Evolution of legumes with high weathering rates was probably driven by their high demand for phosphorus and micronutrients required for N 2 -fixation and nodule formation.

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“…Polyphenols may be classified into different groups on the basis of the number of phenol rings they contain and structural elements that bind these rings to one another. The main classes include phenolic acids [211,233], flavonoids [234][235][236][237][238][239][240][241][242], stilbenes [243], and lignans [244,245], ranging from simple molecules, such as phenolic acids, to highly polymerized compounds, such as proanthocyanidins [246][247][248][249].…”

Section: Biological Effects Of Polyphenolsmentioning

confidence: 99%

Management of reproduction and pregnancy complications in maternal obesity: Which role for dietary polyphenols?

et al. 2013

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Obesity is a global and dramatic public health problem; maternal obesity represents one of the main risk factors of infertility and pregnancy complications as it is associated with adverse maternal and offspring outcomes. In the last few years, adipose tissue dysfunction associated with altered adipocytokine secretion has been suggested to play a critical role in all the phases of reproductive process. Obesity is a nutrition-related disorder. In this regard, dietary intervention strategies, such as high intake of fruit and vegetables, have shown significant effects in both preserving health and counteracting obesity-associated diseases. Evidence has been provided that polyphenols, important constituents of plant-derived food, can influence developmental program of oocyte and embryo, as well as pregnancy progression by modulating several cellular pathways. This review will examine the controversial results so far obtained on adipocytokine involvement in fertility impairment and pregnancy complications. Furthermore, the different effects exerted by polyphenols on oocyte, embryo, and pregnancy development will be also taken in account.

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Distribution of isoflavones and coumestrol in neglected tropical and subtropical legumes

Abstract: None of the samples tested was richer overall source of soy isoflavones and coumestrol than soybean; nevertheless several species (C. mucunoides or A. macrothyrsa) may serve as a promising source of individual compounds.

Cited by 22 publications

References 38 publications

Analysis of Isoflavones in Foods

Analysis of Isoflavones in Foods

N₂-fixing tropical legume evolution: a contributor to enhanced weathering through the Cenozoic?

Management of reproduction and pregnancy complications in maternal obesity: Which role for dietary polyphenols?

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Distribution of isoflavones and coumestrol in neglected tropical and subtropical legumes

Abstract: None of the samples tested was richer overall source of soy isoflavones and coumestrol than soybean; nevertheless several species (C. mucunoides or A. macrothyrsa) may serve as a promising source of individual compounds.

Cited by 22 publications

References 38 publications

Analysis of Isoflavones in Foods

Analysis of Isoflavones in Foods

N2-fixing tropical legume evolution: a contributor to enhanced weathering through the Cenozoic?

Management of reproduction and pregnancy complications in maternal obesity: Which role for dietary polyphenols?

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Product

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N₂-fixing tropical legume evolution: a contributor to enhanced weathering through the Cenozoic?