The saponin content and sapogenol composition of the seed of 13 varieties of legume

Price, K.R.; Curl, Caralyn L.; Fenwick, G. R.

doi:10.1002/jsfa.2740371206

Cited by 73 publications

(39 citation statements)

References 16 publications

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“…Soyasapogenol B is a plant metabolite belonging to the group of triterpenoid saponins whose physiological properties in vegetable foodstocks are of significant medical and agricultural importance 29–32. Saponins were isolated from different plant sources,30 being present in most legume species, including soya,33 alfalfa ( Medicago sativa L.)34 and other Medicago spp 35.…”

Section: Resultsmentioning

confidence: 99%

Soyasapogenol B and trans‐22‐dehydrocam‐ pesterol from common vetch (Vicia sativa L.) root exudates stimulate broomrape seed germination

Evidente

Cimmino

Fernández‐Aparicio

et al. 2011

Pest Management Science

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BACKGROUND: Orobanche and Phelipanche species (the broomrapes) are root parasitic plants, some of which represent serious weed problems causing severe yield losses on important crops. Control strategies have largely focused on agronomic practices, resistant crop varieties and herbicides, albeit with marginal success. An alternative control method is the induction of suicidal seed germination with natural substances isolated from root exudates of host and non‐host plants.RESULTS: Soyasapogenol B [olean‐12‐ene‐3,22,24‐triol(3β,4β,22β)] and trans‐22‐dehydrocampesterol [(ergosta‐5,22‐dien‐3‐ol, (3β,22E,24S)] were isolated from Vicia sativa root exudates. They were identified by comparing their spectroscopic and optical properties with those reported in the literature. Soyasapogenol B was very specific, stimulating the germination of O. minor seeds only, whereas trans‐22‐dehydrocampesterol stimulated P. aegyptiaca, O. crenata, O. foetida and O. minor.CONCLUSION: Soyasapogenol B and trans‐22‐deydrocampesterol were isolated for the first time from Vicia sativa root exudates, and their biological activity as stimulants of Orobanche or Phelipanche sp. seed germination was reported. Copyright © 2011 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Soyasapogenol B and trans‐22‐dehydrocam‐ pesterol from common vetch (Vicia sativa L.) root exudates stimulate broomrape seed germination

Evidente

Cimmino

Fernández‐Aparicio

et al. 2011

Pest Management Science

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“…DDMP saponins and their derivative group B and E saponins are widely distributed in aerial, subterranean, and reproductive tissues of legume plants (Price et al, 1986;Shiraiwa et al, 1991a;Oleszek and Stochmal, 2002;Huhman et al, 2005). By contrast, group A saponins are found only in seed hypocotyls of soybean and its wild relatives, Glycine soja Sieb.…”

Section: Discussionmentioning

confidence: 99%

The Sg-1 Glycosyltransferase Locus Regulates Structural Diversity of Triterpenoid Saponins of Soybean

et al. 2012

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Triterpene saponins are a diverse group of biologically functional products in plants. Saponins usually are glycosylated, which gives rise to a wide diversity of structures and functions. In the group A saponins of soybean (Glycine max), differences in the terminal sugar species located on the C-22 sugar chain of an aglycone core, soyasapogenol A, were observed to be under genetic control. Further genetic analyses and mapping revealed that the structural diversity of glycosylation was determined by multiple alleles of a single locus, Sg-1, and led to identification of a UDP-sugar-dependent glycosyltransferase gene (Glyma07g38460). Although their sequences are highly similar and both glycosylate the nonacetylated saponin A0-ag, the Sg-1 a allele encodes the xylosyltransferase UGT73F4, whereas Sg-1 b encodes the glucosyltransferase UGT73F2. Homology models and site-directed mutagenesis analyses showed that Ser-138 in Sg-1 a and Gly-138 in Sg-1 b proteins are crucial residues for their respective sugar donor specificities. Transgenic complementation tests followed by recombinant enzyme assays in vitro demonstrated that sg-1 0 is a loss-of-function allele of Sg-1. Considering that the terminal sugar species in the group A saponins are responsible for the strong bitterness and astringent aftertastes of soybean seeds, our findings herein provide useful tools to improve commercial properties of soybean products.

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“…While Jack beans have been reported to be free from saponins (Price et al, 1986), Acamovic (1987), Udedibie et al (19881, SECAB (1990) and Belmar and Morris (1994a, b) reported that saponins were detectable in Jack beans (3-O-P-~-xylanopyranosyl (1-4) P-0-P-D-glucopyranosyl lupeol according to SECAB). This apparent lack of agreement across laboratories may be attributable in part to differences among the varieties examined or to sample treatment.…”

Section: Saponinsmentioning

confidence: 99%

Jack bean (Canavalia ensiformisL. DC) in poultry diets: antinutritional factors and detoxification studies – a review

Belmar

Nava-Montero

Sandoval-Castro

et al. 1999

World's Poultry Science Journal

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A review is given on the effects of the inclusion of Jack beans (Canavalia ensifomis L. DC) in poultry diets. Their use is restricted by the presence of a number of antinutritional factors which affect performance when consumed by poultry. The principals of these are identified as concanavalin-A (a lectin), canavanine and canaline (so-called non-protein amino acids), urease and saponins. The mechanisms of their toxicity and the rationale behind the methods that have been used to detoxify Jack beans are described. These mainly involve heat processing, but other approaches such as ensiling, fermentation and addition of chemicals have been applied. It is concluded that, although substantial improvements in nutritional value can result from a number of such treatments, processed Jack beans still contain a residual toxic component which results in depressions in growth rate, food intake and food conversion efficiency when they are included in poultry diets.

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The saponin content and sapogenol composition of the seed of 13 varieties of legume

Cited by 73 publications

References 16 publications

Soyasapogenol B and trans‐22‐dehydrocam‐ pesterol from common vetch (Vicia sativa L.) root exudates stimulate broomrape seed germination

Soyasapogenol B and trans‐22‐dehydrocam‐ pesterol from common vetch (Vicia sativa L.) root exudates stimulate broomrape seed germination

The Sg-1 Glycosyltransferase Locus Regulates Structural Diversity of Triterpenoid Saponins of Soybean

Jack bean (Canavalia ensiformisL. DC) in poultry diets: antinutritional factors and detoxification studies – a review

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