title: Effects of Mechanically Deboned Chicken Meat (MDCM) and Collagen on the Quality Characteristics of Semi-dried Chicken Jerky.
abstract: This study was conducted to determine the effects of using mechanically deboned chicken meat (MDCM) and collagen on quality characteristics of semi-dried chicken jerky. In experiment I, semi-dried chicken jerky was prepared with the replacement of chicken breast with MDCM (0, 10, 20, and 30%). The pH value of the jerky formulated with only chicken breast was 5.94, while the replacement of chicken breast with MDCM significantly increased the pH (p<0.05). The protein content and shear force of the jerkies decreased with increasing amounts of MDCM, whereas the fat, ash content and processing yield showed the opposite tendency (p<0.05). Replacement with up to 10% MDCM had no adverse effects on the sensory characteristics of the semi-dried chicken jerky. In experiment II, four levels of pork collagen (0, 1, 2, and 3%) were added to the semi-dried chicken jerky formulated with 90% chicken breast and 10% MDCM. The addition of collagen increased the moisture content, but decreased the ash content of the jerkies produced (p<0.05). The processing yield of the jerkies increased with increasing added amounts of collagen (p<0.05). It was found that the jerkies formulated with 0-2% collagen had significantly higher overall acceptance score than those prepared with 3% collagen (p<0.05). In conclusion, MDCM and collagen could be useful ingredients to reduce the production cost and improve the processing yield of semi-dried chicken jerky. The optimal levels of MDCM and collagen which could be added without adverse effects on the sensory characteristics were up to 10% and 2%, respectively.
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Dong-Heon
authors.initials: DH
authors.lastname: Song
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Ji-Hun
authors.initials: JH
authors.lastname: Choi
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea; Research Group of Convergence Technology, Korea Food Research Institute, Seongnam 463-746, Korea.
authors.forename: Yun-Sang
authors.initials: YS
authors.lastname: Choi
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Hyun-Wook
authors.initials: HW
authors.lastname: Kim
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Ko-Eun
authors.initials: KE
authors.lastname: Hwang
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Yong-Jae
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Youn-Kyung
authors.initials: YK
authors.lastname: Ham
authors.affiliation: Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 143-701, Korea.
authors.forename: Cheon-Jei
authors.initials: CJ
authors.lastname: Kim
keywords: collagen; mechanically deboned chicken meat (MDCM); semi-dried chicken jerky