Volume 12, Issue 46 (fall 2009)
jwss 2009, 12(46): 221-229 |
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Mousavi Nasab M, Mesbahi G, Maghsodi L. Investigation of The Cryoprotective Effect of Pectin on Frozen Surimi. jwss 2009; 12 (46) :221-229
URL: http://jstnar.iut.ac.ir/article-1-1120-en.html
URL: http://jstnar.iut.ac.ir/article-1-1120-en.html
Abstract: (24190 Views)
Pectin is a hydrocolloid with different characteristics and applications. In this study, the cryoprotective effect of pectin on frozen surimi was investigated. In this research, Kapoor surimi was made for the first time in Iran. Surimi was mixed with 1% pectin solution with the ratio of 1 to 3 (w/v). Then, pectin-containing surimi samples and control samples were packaged, frozen and stored at -20oC. Water binding capacity (WBC), salt extractable protein and drip loss of samples were measured at after 0, 2 and 4 months of storage. The results showed that the loss of WBC in pectin-containing surimi and control samples was 20% and 58%, respectively, after 4 months storage at -20oC. It means pectin could improve the WBC up to 38% in the frozen product. The loss of SEP in pectin containing surimi samples was 21% and in control samples was 25% after 4 month frozen storage, indicating pectin was again effective in maintaining the quality of frozen products. Furthermore, the increase in drip loss in pectin containing surimi was about 7% and in control samples 37%. In this case pectin also helped to decrease the loss of water soluble nutrients. Overall, the results indicate that pectin as a cryoprotectant can improve the quality of frozen surimi.
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