REFRACTOMETRIC METHOD FOR EVALUATION OF SOYBEAN PROTEIN SOLUBILITY

RODICA CĂPRIŢĂ, A. CĂPRIŢĂ, IULIANA CREŢESCU, VALERIA NICU

Abstract


During the manufacture of soybean meal a quick control is essential, so that simple and rapid methods, to enable an immediate decision to be made, are of value A simple and rapid method for estimating soybean protein solubility on the basis of changes in the refractive index of dilute potassium hydroxide solution extracts was tested and we found to be highly correlated with the usual protein solubility test in KOH (r = 0.9382). Determination of biophysical parameters instead of chemical indices has two great advantages: the methods are nonpolluting since they don’t use chemical substances, and the methods are very rapid.


Keywords


soybean meal; KOH protein solubility; refractive index

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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