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Differences in the seed protein composition of genus arachis


Canadian Journal of Botany 62(1): 105-108
Differences in the seed protein composition of genus arachis
Seed proteins from various Arachis spp. [including peanut, A. hypogaea] were extracted and fractionated by gel filtration on a Sephacryl S-300 column. Comparison of the protein profiles revealed the presence of wide variations in their protein composition. Major differences were observed in the amounts of methionine-rich proteins, arachin and the high MW proteins among the various species. Additionally, differences in the total amino acid composition (histidine, threonine, proline, glycine, cystine, valine, methionine and tyrosine) were also detected. The defatted meals of the nonnodulating line contained the lowest amount (36%) of protein, while the other species ranged 49-57%. Leucine aminopeptidase and acid phosphatase activities were highest in A. villosulicarpa and lowest in A. monticola.


Accession: 005151583

DOI: 10.1139/b84-018



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