用植物性料添加剂或没有植物性料添加剂食肉的氧化脂质的生长性能和抗氧化反应
Fernando Sevillano1, Alexis J Maldonado-Ortiz1, Javier Herrero-Encinas2
1Departamento de Producción Agraria, Universidad Politécnica de Madrid, ETS Ingeniería Agronómica Alimentaria y de Biosistemas, 28040 Madrid, Spain.
Poultry science
|February 7, 2026
概括
植物性添加剂,如橄果汁提取物 (OE) 和香料,改善了 brojler 对氧化脂的抗氧化能力. OE减弱了酶反应,表明更好的氧化应激控制,而SPICY提高了抗氧化剂基因表达的调节.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 氧化压力研究研究 氧化压力研究
背景情况:
- 氧化脂等料污染物的氧化应激是肉生产中的一个问题.
- 植物性添加剂为减轻家禽的氧化损伤提供了潜在的解决方案.
- 了解特定添加剂的体内抗氧化能力对于有效的料配方至关重要.
研究的目的:
- 评估橄果汁提取物 (OE) 和香料混合物 (Capsicum sp.,黑胡,生) 在受氧化脂质挑战的 brojlers 中的体内抗氧化能力.
- 研究这些植物性添加剂对肉关键抗氧化剂标记物和基因表达的影响.
- 为了确定OE和SPICY在过氧化大豆油诱导的氧化应激管理中的有效性.
主要方法:
- 一个2x2x2的因数设计研究,涉及720只雄性Cobb 500肉在21天内.
- 治疗包括脂肪来源 (大豆油与过氧化大豆油),SPICY (0或250ppm) 和OE (0或3077ppm).
- 评估的性能参数,血铁减少抗氧化能力 (FRAP),催化酶 (CAT) 活性,以及肝脏中的CAT和热冲击蛋白70 (HSP70) 基因表达.
主要成果:
- 过氧化油增加了血FRAP和CAT活性,但OE补充维持了这些水平,表明酶反应减少.
- 在应对氧化压力时,OE补充导致了较低的CAT基因表达和调节的HSP70基因表达.
- 香料补充剂调高了CAT和降低了HSP70基因表达,增强了抗氧化剂防御系统.
结论:
- 肉的过氧化大豆油并没有对生产参数产生负面影响,但诱导了抗氧化反应.
- 橄果汁提取物 (OE) 显示出减弱酶的抗氧化反应的能力,这表明氧化应激控制优越.
- 香料有效地提高了抗氧化剂基因表达的调节,有助于肉的整体氧化剂/抗氧化剂平衡.
相关概念视频
Conjugate Addition (1,4-Addition) vs Direct Addition (1,2-Addition)
4.4K
α,β-Unsaturated carbonyl compounds with two electrophilic sites, the carbonyl carbon, and the β carbon, are susceptible to nucleophilic attack via two modes: conjugate or 1,4-addition and direct or 1,2-addition.
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
4.4K
Oxidation Numbers
42.9K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
42.9K
What are Lipids?
220.8K
Overview
220.8K
Lipid Digestion
99.6K
Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
99.6K
Structure of Lipids
99.1K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
99.1K
Conjugate Addition of Enolates: Michael Addition
3.6K
The attack of a nucleophile at the β carbon of an α,β-unsaturated carbonyl compound is called conjugate addition. Conjugate addition reactions of active methylene compounds, such as β-diketones, β-keto esters, β-keto nitriles, and α-nitro ketones, are called Michael addition reactions.
3.6K


