Abstract

The rich bioactive compounds of medicinal rosemary, as well as their antioxidant activity has led to its wider application in the pharmaceutical, cosmetic and food industries. In the present work, seasonal variations of phenolic, flavonoid content and antioxidant activity were evaluated. This experiment was performed based on a complete randomised design with three replications. The total content of flavonoids and some phenolic compounds (caffeic acid and quercetin) increased when plants received sunlight for a longer period of time than the colder seasons. On the other hand, the highest antioxidant activity was observed in rosemary, which was accompanied by an increase in the important phenolic composition of rosmarinic acid in the cold season. Overall, this study can provide useful information about the best harvest period for rosemary to produce the desired compounds for use in the food, pharmaceutical and plant industries.

摘要

药用迷迭香丰富的生物活性化合物及其抗氧化活性使其在制药、化妆品和食品行业得到更广泛的应用。在目前的工作中，评估了酚类、类黄酮含量和抗氧化活性的季节性变化。该实验基于具有三个重复的完整随机设计进行。当植物接受阳光的时间比寒冷季节更长时，类黄酮和一些酚类化合物（咖啡酸和槲皮素）的总含量会增加。另一方面，在迷迭香中观察到最高的抗氧化活性，伴随着迷迭香酸的重要酚类成分在寒冷季节的增加。全面的，