title: Antioxidant activities of distiller dried grains with solubles as protein films containing tea extracts and their application in the packaging of pork meat.
abstract: Distiller dried grains with solubles (DDGS) as protein (DP) films were prepared. Additionally, to prepare anti-oxidant films, green tea extract (GTE), oolong tea extract (OTE), and black tea extract (BTE) were incorporated into the DP films. Consequently, the incorporation of the tea extracts did not alter the physical properties of the films much, whereas the antioxidant activities, such as ABTS and DPPH radical scavenging activities were observed. To apply the DP films containing tea extracts to food packaging, pork meat was wrapped with the films and stored at 4 °C for 10 d. During storage, the pork meat wrapped with the DP films containing GTE, OTE, and BTE had less lipid oxidation than did the control. Among the tea extracts, the DP film containing GTE had the greatest antioxidant activity. These results indicate that the DP films containing green tea extracts can be utilized as an anti-oxidative packaging material for pork meat.
authors.affiliation: Department of Food Science and Technology, Chungnam National University, Daejeon 305-764, Republic of Korea.
authors.forename: Hyun-Ju
authors.initials: HJ
authors.lastname: Yang
authors.affiliation: Department of Food Science and Technology, Chungnam National University, Daejeon 305-764, Republic of Korea.
authors.forename: Ji-Hyeon
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Biomedical Genomics Research center, KRIBB, Daejeon 305-806, Republic of Korea.
authors.forename: Misun
authors.initials: M
authors.lastname: Won
authors.affiliation: Department of Food Science and Technology, Chungnam National University, Daejeon 305-764, Republic of Korea. Electronic address: kbsong@cnu.ac.kr.
authors.forename: Kyung Bin
authors.initials: KB
authors.lastname: Song
mesh_terms: D000975:Antioxidants / Q000032:analysis*; D018857:Food Packaging; D015227:Lipid Peroxidation; D010936:Plant Extracts / Q000737:chemistry*; D000069466:Red Meat; D013662:Tea
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D013662:Tea
keywords: Antioxidant activity; Distiller dried grains with solubles; Physical property; Tea extract