title: Combined Effects of Mugwort Herb and Vitamin C on Shelf-Life of Vacuum-Packed Seasoned Pork.
abstract: This study was performed to investigate the possibility of the addition of mugwort herb extract (MH) and vitamin C (VC) alone (0.05%) and in combination (0.05% each) on shelf-life of seasoned pork. The combination of VC+MH demonstrated a significant reduction in thiobarbituric acid reactive substances, and volatile basic nitrogen in seasoned pork. Also, the pH values, total lactic acid concentration, lactic acid bacteria count, and the sensory properties (discoloration, flavor, and overall acceptability) of seasoned pork were not significantly affected by adding MH and/or VC. All seasoned pork were rejected by sensory panel when LAB count reached levels of 5-6 Log CFU/g, TLA concentration has been above a level of 3.6-3.9 mg lactic acid/g, and pH values ranged from 5.31-5.51 (15 d). Therefore, the findings showed that spoilage of seasoned pork does not appear to be the result of lipid oxidation, but is caused by lactic acid producing bacteria which result in sour odor.
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: Food Processing Research Center, Korean Food Research Institute, Seongnam 463-746, Korea.
authors.forename: Yun-Sang
authors.initials: YS
authors.lastname: Choi
authors.affiliation: Meat Science and Muscle Biology Lab, Purdue University, West Lafayette, IN 47907, USA.
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: Min-Sung
authors.initials: MS
authors.lastname: Choi
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: 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: lactic acid bacteria; mugwort; seasoned meat; shelf-life; vitamin C