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Effect of Setting Temperatures and Time on the Gelation Properties (Suwari and Modori Phenomena) of Surimi from Mechanically Deboned Chicken Meat |
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Sung Ki Lee, Byung Jin Min |
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| Abstract |
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This study was carried out to investigate gel forming and degradation properties (suwari and modori phenomena) of chicken surimi from mechanically deboned chicken meat (MDCM) at various setting temperatures and time. Chicken surimi was manufactured by a continuous process including chopping of MDCM, washing with 5% NaCl solution or pure water, standing, straining and centrifuging etc. Total process of washing for the MDCM from chopping to centrifuging was repeated over 3 cycles. Gel from prepared surimi were formed at 90째C for 30 min after various setting treatments. The textural properties of gels were measured at the temperature ranges of low (10째C), medium (25째C and 30째C) and high (45 to 70째C). The compressive force (CF), hardness and fracturability of surimi gel at 10째C increased as setting time increased, and showed the highest value at 30 h of setting time. The CF and hardness of chicken surimi gel at 25째C and 30째C showed the highest values at 10 h of setting time. Most of gel strengths including CF, and texture profile analysis (TPA) values showed the highest levels in the range 47.5 to 52.5째C (p<0.05). The gel strength at 60째C increased slightly at 30 min, but then continued to decrease with longer setting times. There was no increase of gel strength at 70째C, but only a continuous decrease over setting time. In conclusion, suwari (gel setting) and modori (gel degradation) phenomena occur during the gel formation of surimi from MDCM. The temperature range in chicken surimi was 47.5 to 52.5째C for suwari and 60 to 70째C for modori. |
| Keywords:
Surimi; Mechanically Deboned Chicken Meat (MDCM); Suwari; Modori; Setting Temperature; Setting Time |
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