Dry roasted whole, hull, and air-classified Phaseolus vulgaris (pinto bean) flour fractions were analyzed for thiamin content using a fluorometric procedure. On a 100 g dry weight basis, the mean thiamin values of each pinto bean flour fraction were whole bean, 0.80 mg; hull, 0.65 mg; intermediate s
The protein composition of air-classified flour fractions
β Scribed by C. W. Wrigley
- Publisher
- John Wiley and Sons
- Year
- 1963
- Tongue
- English
- Weight
- 356 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0022-5142
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β¦ Synopsis
Abstract
The possibility of uneven distribution of individual proteins as a result of air classification was investigated by examining the protein composition of three sets of airβclassified flour fractions by fractional extraction, and chromatography of the proteins soluble in acetic acid. Both techniques showed that fine, medium and coarse particle fractions were similar to the corresponding parent flour samples in protein composition.
π SIMILAR VOLUMES
## A BS TRA CT The effect of changing the cut point of a laboratory air classifier on the protein fractionation into the fines was studied on the flour of two varieties each of cowpea (Vigna unguiculata), faba bean (Vicia faba) and pigeonpea (Cajanus cajan). Of the three species, the highest fines
## Abstract The study of chemical composition and dough rheology changes in sieveβclassified two fractions (up to 60 and 60β240 ΞΌm particles) of wheat flour was the subject of this study. The straight grade flours were obtained by the milling of three Polish varieties of spring wheat, differing in
Fractions of markedly different protein contents may be obtained by air-classifying flour (in the sub-sieve range) a t cut sizes of about 17 and 35 p respectively. Of these fractions, the fine, 1 (of high protein content), contains fragments of interstitial endosperm protein and small starch granule