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Issue 4 (2) 2005 pp. 111 - 118

Piotr Konieczny, Waldemar Uchman, Krystyna Krysztofiak, Jarosław Przyborski

SOME SELECTED PROPERTIES OF PROTEIN PREPARATIONS MADE BY ENZYMATIC TREATMENTS OF ANIMAL BLOOD RED CELL FRACTION

Abstract Products prepared from animal blood intended for human consumption and collected in accordance with GHP rules are considered as of high nutritional value for their use for food purposes. The properties of a globin protein prepared from red cell fraction by an enzymatic method were studied. The efficiency of process as well as functional and nutritional characteristics of hydrolysates were evaluated. Liquid preparation obtained commercially from a culture of Bacillus subtilis contained a complex of proteolytic and some amylolitic enzymes was used in the experiment. Both, time of hydrolysis (6-48 h) and enzyme concentration significantly affected the degree of decolouration of red cell fraction and all properties of preparations obtained. The preparations demonstrated vari-ous molecular weight composition. The extinction of some hydrolysates at 540 nm was lower than 0.05. When compared with spray dried blood plasma or sodium caseinate, the globin preparation obtained under chosen conditions (18 h of hydrolysis, 10 ml of enzyme solution per 100 g of red cells) and freeze dried showed good solubility. Having very good emulsifying and foaming properties, the examined preparations indicate the poten-tial as a valuable agent for incorporation into food formulations.
Keywords: animal blood, red cells, enzymatic hydrolysis
pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.food.actapol.net/issue2/volume/11_2_2005.pdf

For citation:

MLA Konieczny, Piotr, et al. "SOME SELECTED PROPERTIES OF PROTEIN PREPARATIONS MADE BY ENZYMATIC TREATMENTS OF ANIMAL BLOOD RED CELL FRACTION." Acta Sci.Pol. Technol. Aliment. 4.2 (2005): 111 - 118.
APA Konieczny P.,Uchman W.,Krysztofiak K.,Przyborski J. (2005). SOME SELECTED PROPERTIES OF PROTEIN PREPARATIONS MADE BY ENZYMATIC TREATMENTS OF ANIMAL BLOOD RED CELL FRACTION. Acta Sci.Pol. Technol. Aliment. 4 (2), 111 - 118
ISO 690 KONIECZNY, Piotr, et al. SOME SELECTED PROPERTIES OF PROTEIN PREPARATIONS MADE BY ENZYMATIC TREATMENTS OF ANIMAL BLOOD RED CELL FRACTION. Acta Sci.Pol. Technol. Aliment., 2005, 4.2: 111 - 118.