Department of Animal Sciences, Oregon State University, Corvallis, OR 97331, USA.
Poult Sci. 2010 Dec;89(12):2711-8. doi: 10.3382/ps.2009-00548.
Camelina sativa is an oilseed crop of the Brassica (Cruciferae) family that has gained increased popularity as a biofuel source. The present study was conducted to investigate the effects of feeding C. sativa meal to broiler birds on phenolic compounds, tocopherols, flavonoids, antioxidant capacity, and lipid peroxidation in chicken thigh meat during short (4°C for 2 or 7 d) or long-term (-20°C for 90 d) storage and cooking. One hundred sixty 1-d-old Cobb chicks were fed a corn-soybean meal-based diet with added Camelina meal at 0% (control), 2.5% (CAM2.5), 5% (CAM5), and 10% (CAM10). The experimental diets were fed for a period of 42 d. Feeding Camelina meal at 5 or 10% led to a 1.6-fold increase in γ-tocopherols in the thigh meat when compared with control birds (P < 0.05). No effect of diet on γ-tocopherols in the breast meat and α-tocopherols in the thigh and breast meat was observed (P > 0.05). Antioxidant activity measured as 2,2-azino-bis [3-ethylbenzo-thiazoline-6-sulfonic acid] radical scavenging capacity in the thigh meat from CAM2.5, CAM5, and CAM10 was higher than control birds (P < 0.05). In the breast meat, 2,2'-azino-bis (3-ethylbenzo-thiazoline-6-sulfonic acid) diammonium salt radical scavenging capacity was highest in CAM10 (P < 0.05). Feeding Camelina meal at 5 or 10% led to reductions in thigh TBA reactive substances (TBARS) during short-term (2 d) and long-term storage (P < 0.05). The TBARS of thigh meat from CAM5 and CAM10 were reduced up to 49 or 36% during 2- or 90-d storage, respectively, when compared with control (P < 0.05). However, no effect of diet on thigh meat TBARS at 7 d of storage was observed among treatment groups. Overall, TBARS were highest in the thigh meat from control and CAM2.5 birds (P < 0.05). Upon cooking, TBARS were lowest in thigh meat from CAM10 birds, which was over 48% lower than in meat from birds fed the control diet (P < 0.05). The current study showed that Camelina meal could be effective in inhibiting lipid oxidation and enhancing antioxidant capacity. However, the effect was more prominent in the thigh than breast meat.
荠蓝是十字花科（芸薹属）的一种产油作物，作为生物燃料来源，其受欢迎程度日益提高。本研究旨在探讨在短期（4°C 贮藏 2 或 7 d）或长期（-20°C 贮藏 90 d）贮藏和烹饪过程中，向肉鸡投喂荠蓝饲料对鸡胸肉和鸡腿肉中酚类化合物、生育酚、类黄酮、抗氧化能力和脂质过氧化的影响。160 只 1 日龄科宝鸡被喂食基于玉米-豆粕的日粮，添加 0%（对照）、2.5%（CAM2.5）、5%（CAM5）和 10%（CAM10）的荠蓝粉。实验日粮喂饲期为 42 d。与对照组相比，在鸡腿肉中，当投喂 5%或 10%的荠蓝粉时，γ-生育酚增加了 1.6 倍（P<0.05）。荠蓝粉对鸡胸肉中的γ-生育酚和鸡腿肉及鸡胸肉中的α-生育酚没有影响（P>0.05）。荠蓝粉对鸡腿肉中 2,2-氮-二（3-乙基苯并噻唑啉-6-磺酸）自由基清除能力的抗氧化活性测定值高于对照组（P<0.05）。在鸡胸肉中，10%的荠蓝粉（CAM10）的 2,2'-氮-二（3-乙基苯并噻唑啉-6-磺酸）二铵盐自由基清除能力最高（P<0.05）。投喂 5%或 10%的荠蓝粉可降低短期（2 d）和长期（90 d）贮藏期间鸡腿肉的 TBA 反应物质（TBARS）（P<0.05）。与对照组相比，在 2-90 d 贮藏期间，5%和 10%的荠蓝粉使鸡腿肉中的 TBARS 分别降低了 49%或 36%（P<0.05）。然而，在 7 d 的贮藏期内，各组之间的饮食对大腿肉 TBARS 没有影响。总的来说，TBARS 在对照组和 CAM2.5 组的鸡腿肉中最高（P<0.05）。经烹调后，CAM10 组鸡腿肉中的 TBARS 最低，比对照组低 48%以上（P<0.05）。本研究表明，荠蓝粉能有效抑制脂质氧化，提高抗氧化能力。然而，这种效果在大腿肉中比在鸡胸肉中更为显著。
