title: Protein properties of mackerel viscera extracted by supercritical carbon dioxide.
abstract: The extraction of mackerel viscera using supercritical carbon dioxide (SCO2) was performed under the conditions of temperature range from 35 to 45 degrees C, and constant pressure 25 MPa. The digestive enzyme activities were determined in comparison of untreated and treated SCO2 and solvent treatment. Activities were maintained with high level compared to that of solvent extraction. Also from result of SDS-PAGE, the protein denaturation was minimized when using SCO2 extraction. The major amino acids in the mackerel viscera were determined as glutamic acid, aspartic acid, glycine, leucine, lysine and the free amino acids were taurine, L-alanine, L-leucine, 1-methyl-L-histamine, 3-methyl-L-histidine.
authors.affiliation: Institute of Food Science, Faculty of Food Science and Technology, Pukyong National University-599-I, Daeyeon dong, Busan, 608-737, Korea.
authors.forename: Ji Yeon
authors.initials: JY
authors.lastname: Park
authors.forename: Sung Sin
authors.initials: SS
authors.lastname: Back
authors.forename: Byung Soo
authors.initials: BS
authors.lastname: Chun
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002245:Carbon Dioxide / Q000737:chemistry*; D025924:Chromatography, Supercritical Fluid; D004591:Electrophoresis, Polyacrylamide Gel; D010473:Perciformes / Q000033:anatomy & histology*; D011506:Proteins / Q000032:analysis* / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013696:Temperature; D013997:Time Factors
chemical_list: D000596:Amino Acids; D011506:Proteins; D012997:Solvents; D002245:Carbon Dioxide