CONDITIONS FOR THE AUTOLYSIS OF ALPHA-GALACTOSIDES AND PHYTIC ACID IN CALIFORNIA SMALL WHITE BEANS

Autor:	Michael R. Gumbmann, Robert Becker, Doris P. Frederick, Samuel Kon, Joseph R. Wagner, Alfred C. Olson
Rok vydání:	1974
Předmět:	Hydrolysis chemistry.chemical_compound Autolysis (biology) Phytic acid Sucrose Chromatography chemistry Galactose food and beverages Inositol Raffinose Food Science Stachyose
Zdroj:	Journal of Food Science. 39:766-769
ISSN:	1750-3841 0022-1147
DOI:	10.1111/j.1365-2621.1974.tb17975.x
Popis:	The conditions for the autolysis of stachyose, raffinose and phytic acid in California small white beans were determined. It was found that initially the beans contain about 3.7% stachyose, 0.4% raffinose and no detectable verbascose. Optimum conditions for autolysis of these sugars are pH 5 and 45–65°C. Approximately 30% of the sugars are hydrolyzed in 9 hr, 50% in 24 hr and 70% in 48 hr. Disappearance of the oligosaccharides is accompanied by corresponding increases in galactose and sucrose. Other changes occur during incubation, including the hydrolysis of phytic acid with the production of inorganic phosphate and inositol. Optimum conditions for the production of inorganic phosphate and inositol are pH 5 and 35–45°C. When fed to rats incubated preparations of beans produced less hydrogen than nonincubated preparations.
Databáze:	OpenAIRE
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