Akuru Eunice A, Oyeagu Chika E, Mpendulo Thando C, Rautenbach Fanie, Oguntibeju Oluwafemi O
Department of Livestock and Pasture Science, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa.
Department of Animal Science, University of Nigeria, Nsukka, 410001, Nigeria.
Heliyon. 2020 Dec 16;6(12):e05709. doi: 10.1016/j.heliyon.2020.e05709. eCollection 2020 Dec.
This study examined the antioxidant status and quality of breast meat in broiler birds fed diets supplemented with pomegranate peel powder meal (PPPM). During the 35-d feeding trial, broiler birds were fed six experimental diets: diet with 0% additives (negative control; NEGCON); diet with α-Tocopherol acetate at 200 g/tonne (positive control; POSCON); and four levels (2, 4, 6 and 8 g/kg) of PPPM, designated as PPPM, PPPM, PPPM, and PPPM. Breast muscle pH was determined 15mins and 24hrs postmortem. The breast muscles were then stored at 4 °C to determine shelf-life attributes (pH, colour, hue angle, and chroma) for 16 days. Meat from the 8 g/kg PPPM had the highest thawing loss, whereas cooking loss was lowest at 2 g/kg PPPM inclusion. The meat of birds fed 2 g/kg and 4 g/kg PPPM had the highest (P<0.05) ability to scavenge the ABTS [(2, 2-azinobis (3ethylbenzothiazoline-6 sulfonic acid))] radical cation (ABTS), whereas, catalase activity was increased at 8 g/kg PPPM. The results obtained in this study indicate that 2 g/kg supplementation of pomegranate peel powder meal significantly improved the water-binding capacity of broiler breast meat, owing to the reduced cooking loss of the meat, and meat from the PPPM (2 g/kg) group had the highest ability to scavenge ABTS.
本研究检测了在日粮中添加石榴皮粉末（PPPM）的肉鸡胸脯肉的抗氧化状态和品质。在为期35天的饲养试验中，给肉鸡饲喂六种试验日粮：含0%添加剂的日粮（阴性对照；NEGCON）；含200克/吨乙酸α-生育酚的日粮（阳性对照；POSCON）；以及四个水平（2、4、6和8克/千克）的PPPM，分别指定为PPPM、PPPM、PPPM和PPPM。宰后15分钟和24小时测定胸脯肌肉的pH值。然后将胸脯肌肉在4℃下储存，以测定16天的货架期属性（pH值、颜色、色调角和色度）。8克/千克PPPM组的肉解冻损失最高，而在日粮中添加2克/千克PPPM时烹饪损失最低。饲喂2克/千克和4克/千克PPPM的肉鸡的肉清除ABTS [（2, 2-偶氮二（3-乙基苯并噻唑啉-6-磺酸））] 自由基阳离子（ABTS）的能力最高（P<0.05），而在8克/千克PPPM时过氧化氢酶活性增加。本研究获得的结果表明，添加2克/千克石榴皮粉末显著提高了肉鸡胸脯肉的水结合能力，这是由于肉的烹饪损失降低，并且PPPM（2克/千克）组的肉清除ABTS的能力最高。
