title: Emulsion properties of pork myofibrillar protein in combination with microbial transglutaminase and calcium alginate under various pH conditions.
abstract: In this study, the effects of microbial transglutaminase (MTG) and calcium alginate (CA) systems in combination with soybean oil on the emulsion properties of porcine myofibrillar protein (MP) were evaluated under various pH conditions. MTG was shown to improve emulsifying capacity and creaming stability, which increased with increasing pH values up to 6.5. The CA did not influence emulsifying capacity, but it improved the creaming stability of the MP-stabilized emulsions. Both MTG and CA enhanced the rheological properties, but their effects on the physical characteristics of the protein evidenced an opposite trend in relation to pH, i.e., the MTG system improved both the emulsion and gelling properties with increasing pH, whereas the CA system was effective when the pH was lowered. By combining the two MP gelling systems, a stable and pH-insensible emulsion could be produced.
authors.affiliation: Department of Animal Science and Biotechnology Research Institute, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors.forename: Geun Pyo
authors.initials: GP
authors.lastname: Hong
authors.forename: Sang-Gi
authors.initials: SG
authors.lastname: Min
authors.forename: Koo Bok
authors.initials: KB
authors.lastname: Chin
mesh_terms: D000464:Alginates / Q000737:chemistry*; D000818:Animals; D004655:Emulsions; D005504:Food Analysis; D005511:Food Handling; D005782:Gels; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D008461:Meat Products / Q000032:analysis*; D009210:Myofibrils / Q000737:chemistry*; D012212:Rheology; D013024:Soybean Oil / Q000737:chemistry; D013552:Swine; D011503:Transglutaminases / Q000737:chemistry* / Q000378:metabolism
chemical_list: D000464:Alginates; D004655:Emulsions; D005782:Gels; D006603:Hexuronic Acids; D013024:Soybean Oil; D020723:Glucuronic Acid; D011503:Transglutaminases