Ban Lan, Narasimhamoorthy Brindha, Zhao Liuqing, Greaves John A, Schroeder William D
Kemin Industries, Inc., 2100 Maury Street, Des Moines, IA 50317, United States.
Kemin Industries, Inc., No 25, Qinshi Road, Sanzao town, 519040 Zhuhai, China.
Food Chem. 2016 Jun 15;201:259-63. doi: 10.1016/j.foodchem.2016.01.082. Epub 2016 Jan 22.
Rosemary extract is widely used in food industry and carnosic acid is reported to be the major component that is responsible for its antioxidant activities. However, it is unclear how the numerous plant metabolites interact and contribute to the overall antioxidant activity. In this study, with poultry fat as the model food system, rosemary extract from six clonal lines were evaluated that each represented a different genetic variant. As expected, rosemary extract with higher carnosic acid content had higher antioxidant activity. However, rosemary extract which had carnosic acid removed retained a significant amount of activity. Furthermore, when the individual contributions of carnosic acid and the portion without carnosic acid were evaluated separately, neither was shown to be responsible for the overall level of its stabilization effect from rosemary extract as a whole entity. The interactions among different plant metabolites have a major impact on the overall antioxidant capabilities of rosemary extract.
迷迭香提取物广泛应用于食品工业，据报道，鼠尾草酸是其具有抗氧化活性的主要成分。然而，目前尚不清楚众多植物代谢产物是如何相互作用并对整体抗氧化活性产生影响的。在本研究中，以家禽脂肪作为模型食品体系，对来自六个克隆系的迷迭香提取物进行了评估，每个克隆系代表一种不同的遗传变异。正如预期的那样，鼠尾草酸含量较高的迷迭香提取物具有较高的抗氧化活性。然而，去除了鼠尾草酸的迷迭香提取物仍保留了相当程度的活性。此外，当分别评估鼠尾草酸和不含鼠尾草酸部分的单独贡献时，二者均未显示对迷迭香提取物作为一个整体实体的稳定效果的总体水平负责。不同植物代谢产物之间的相互作用对迷迭香提取物的整体抗氧化能力有重大影响。
