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Animal Products
Asian-Australasian Journal of Animal Sciences 2000;13(12): 1770-1774.
DOI: https://doi.org/10.5713/ajas.2000.1770    Published online December 1, 2000.
Decolorization of Porcine Red Blood Cell Globin With Ion Exchanger Method and Modification of Its Protein Functionalities
Jeng-Huh Yang, Chin-Wen Lin
Abstract
Extended use of porcine blood in food ingredients depends on the decolorization of red blood cell concentrates and the modification of its functional properties. The purpose of this study is to compare the relative effect of cation ion exchanger for decolorization of porcine red blood globin. The globin extract is freeze-dried for determination of various functional properties, such as solubility, emulsion capability and foaming ability. Since the isoelectric point of blood globin is located at pH 6.8, which is the neutral pH ranges (6-8), so its functionalities are inferior around these pHs. This weakness has been the main reason, which limit the extended use of blood globin in food industry. Acetylation and succinylation of blood globin can be an alternative way to improve its functionalities. These results may provide new information to understand the decolorization mode by cation ion exchanger for the blood globin. With chemical, the functionalities of blood globin could be obviously improved. The above findings could enable food industry to extend the use of blood globin as a food ingredient.
Keywords: Porcine RBC; Globin; Decolorization; Ion Exchanger; Functionalities; Modification
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