Journal of Biological Sciences1727-30481812-5719Asian Network for Scientific Information10.3923/jbs.2010.499.506PhuNgo Van MoriokaKatsuji ItohYoshiaki 62010106The role of non-covalent aggregation of protein in the gelation of white croaker surimi during heating process, as well as the difference in the gel formation of white croaker and walleye pollack surimi were investigated by the examination of microstructure of white croaker surimi gels under the inhibition of the polymerization and degradation of protein myosin heavy chain (MHC). In the inhibitory condition, the gel strength of 1-step heating and 2-step heating gels set at 40°C increased with setting time and reached maximum value for 180 min-setting gel. The gel strength of 2-step heating gels set at 50°C reached the maximum value for 20 min-setting. Furthermore, the internal structure of gels set at 40°C was regular and compact in both 1-step and 2-step heating gels. A regular, dense and compact gel network with thick strands was formed in gels set at 50°C. Thus, it was concluded that the non-covalent thermal aggregation of white croaker surimi protein during setting could form a fine and compact gel network with thick strands and this gel network was maintained or reinforced by non-covalent bonding during subsequent heating at 80°C for 20 min under the inhibition of the polymerization and degradation of MHC.]]>Alvarez, C., I. Couso and M. Tejada,199979839844Cao, M.J., K. Hara, K. Osatomi, K. Tachibana, T. Izumi and T. Ishihara,199964644647Chang-Lee, M.V., R. Pacheco-Aguilar, D.L. Crawford and L.E. Lampila,1989Merluccius productus) and heat-set gel texture.]]>5411161119Funatsu, Y., H. Hosokawa, S. Nanbu and K. Arai,19935915991607Hossain, M.I., Y. Itoh, K. Morioka and A. Obatake,200167718725Hossain, M.I., K. Morioka, F.H. Shikha and Y. Itoh,20102010Jafarpour, A. and E.M. Gorczyca,2008Cyprinus carpio).]]>73415424Jafarpour, A. and E.M. Gorczyca,2009Cyprinus carpio) surimi and kamaboko gel.]]>4172179Itoh, Y., R. Yoshinaka and S. Ikeda,197945455458Iwasaki, T., M. Washio, K. Yamamoto and K. Nakamura,200570432436Kamath, G.G., T.C. Lanier, E.A. Foegeding and D.D. Hamann,19925910181023Katoh, N., H. Nozaki, K. Komatsu and K. Arai,19794510271032Kishi, A., Y. Itoh and A. Obatake,199567580Kubota, S., Y. Tamura, T. Matsui, K. Morioka and Y. Itoh,200641459463Kubota, S., Y. Tamura, K. Morioka and Y. Itoh,200368307311Lanier, T.C., T.S. Lin, Y.M. Liu and D.D. Hamanm,19824719211924Lowry, O.H., N.J. Rosebrough, A.L. Farr and R.J. Randall,1951193265275Makinodan, Y., Y. Yokoyama, M. Kinoshita and H. Toyohara,19878710411046Nowsad, A.K.M., E. Katoh, S. Kanoh and E. Niwa,1996629497Okada, M. and M. Migita,195622265271Phu, N.V., K. Morioka and Y. Itoh,20102010Saeki, H., Z. Iseya, S. Sugiura and N. Seki,199560917921Sankar , T.V., and A. Ramachandran,20028210211027Sano, T., F. Noguchi, T. Tsuchiya and J.J. Matsumoto,198853924928Sato, S. and T. Tsuchiya,19921992Seki, N.,199062149150Shimizu, Y., R. Machida and S. Takanemi,19814795104Shikha, F.H., M.I. Hossain, K. Morioka, S. Kubota and Y. Itoh,20067211271129Tsukamasa, Y. and Y. Shimizu,199157535540Wan, J., I. Kimura, M. Satake and N. Seki,199460107113Weber, K. and M. Osborn,196924444064412Yamada, A. and K. Yoshioka,199931223228Yamaguchi, A., Y. Abe, M. Ishioroshi and K. Samejima,2000422532Yasui, T., M. Ishiroshi and K. Samejima,198046178