title: Effects of nano-scaled fish bone on the gelation properties of Alaska pollock surimi.
abstract: Gelation properties of Alaska pollock surimi as affected by addition of nano-scaled fish bone (NFB) at different levels (0%, 0.1%, 0.25%, 0.5%, 1% and 2%) were investigated. Breaking force and penetration distance of surimi gels after setting increased significantly as NFB concentration increased up to 1%. The first peak temperature and value of storage modulus (G'), which is known to relate to the unfolding and aggregation of light meromyosin, increased as NFB concentration increased. In addition, 1% NFB treatment demonstrated the highest G' after gelation was completed. The activity of endogenous transglutaminase (TGase) in Alaska pollock surimi increased as NFB calcium concentration increased. The intensity of myosin heavy chain cross-links also increased as NFB concentration increased indicating the formation of more ε-(γ-glutamyl) lysine covalent bond by endogenous TGase and calcium ions from NFB.
authors.affiliation: College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province 430070, PR China; Oregon State University Seafood Research and Education Center, 2001 Marine Drive #253, Astoria, OR 97103, United States.
authors.forename: Tao
authors.initials: T
authors.lastname: Yin
authors.affiliation: Oregon State University Seafood Research and Education Center, 2001 Marine Drive #253, Astoria, OR 97103, United States. Electronic address: Jae.Park@oregonstate.edu.
authors.forename: Jae W
authors.initials: JW
authors.lastname: Park
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000737:chemistry*; D005396:Fish Products / Q000032:analysis*; D029941:Fish Proteins / Q000737:chemistry; D005503:Food Additives / Q000737:chemistry*; D005511:Food Handling; D048388:Gadiformes; D005782:Gels / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D013696:Temperature; D011503:Transglutaminases / Q000737:chemistry
chemical_list: D029941:Fish Proteins; D005503:Food Additives; D005782:Gels; D011503:Transglutaminases
keywords: Gelation; Nano-scaled fish bone; SDS–PAGE; Surimi; Transglutaminase