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OLIGOSACCHARIDES OF 13 AMERICAN CULTIVARS OF COWPEAS (Vigna sinensis)
Author(s) -
AKPAPUNAM MAURICE A.,
MARKAKIS PERICLES
Publication year - 1979
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1979.tb06428.x
Subject(s) - stachyose , raffinose , vigna , cultivar , sucrose , chemistry , food science , botany , horticulture , biology
Mature dry seeds of 13 American cowpea ( Vigna sineilsis ) cultivars were subjected to proximate analysis with the following results: moisture 9.6%; crude protein 23.9%; crude fat 1.6%; crude fiber 4.1%; ash 3.3%; and nonfiber carbohydrates by difference 57.7%. The sugars of these cultivars were extracted with 70% ethanol and separated by paper chromatography. On the basis of R G and R f values, and several confirming tests, sucrose, raffinose, stachyose and verbascose were identified in these extracts. On a dry basis the average content of the cowpeas in these sugars was: sucrose 2.2%; raffinose 1.2%; stachyose 3.4%; and verbascose 0.9%.