Differences in functional properties of mungbean protein concentrate and the effect of incorporation into fish sausages
The physico-chemical and functional properties of mungbean protein concentrate prepared by (i) calcium sulphate precipitation (MBC-Ca) and (ii) isoelectric point precipitation (MBG-pI) containing 21.6 and 67.3% protein respectively, were compared. The solubility of the concentrates was positively...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
1996
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| Online Access: | http://psasir.upm.edu.my/id/eprint/3556/1/Differences_in_Functional_Properties_of_Mungbean_Protein_Concentrate_and.pdf |
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| Summary: | The physico-chemical and functional properties of mungbean protein concentrate prepared by (i) calcium sulphate
precipitation (MBC-Ca) and (ii) isoelectric point precipitation (MBG-pI) containing 21.6 and 67.3% protein
respectively, were compared. The solubility of the concentrates was positively correlated with pH within the range of 4-7. The foaming ability was closely correlated with percentage ofsoluble N (r2 = 0.98) and pH (r2 = 0.88) while
the foam stability was correlated with the hydrophilicity (l = 0.98) of the concentrates. All concentrates were able
to reduce the weight loss, shrinkage and increase the firmness of cooked fish sausages. The weight loss and shrinkage
were negatively correlated with the soluble protein, pH and foaming ability of the concentrates. The functional
properties of the concentrates, when added at a level of 1-2%, influenced the texture of the fish sausages. In
organoleptic evaluations, fish sausages incorporating the plant proteins scored higher for overall acceptability, even
though there was no significant difference in flavour or texture and a decrease in juiciness of the product compared to
the control. |
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