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The Effect of Storage Conditions on the Essential Oil of Ziziphora clinopodiodes
Journal of Essential Oil Bearing Plants ( IF 2.4 ) Pub Date : 2020-05-03 , DOI: 10.1080/0972060x.2020.1756424
Zahra Ghasemifar 1 , Akram Arianfar 2 , Ameneh Mohammadi 3
Affiliation  

Abstract Ziziphora clinopodioides is an edible medicinal plant (belongs to the family Lamiaceae) that widespread all over Iran. In Iranian folklore, the dried aerial parts of this plant have been frequently used for culinary and also in cold and cough treatments. Present work aimed to evaluate the effect of storage conditions on essential oil composition, antimicrobial and antioxidant activities. Treatments were three levels of storage temperatures including room temperature (21°C), refrigerator temperature (4°C) and freezer temperature (-20°C) in 10 days. Essential oils after extraction with hydrodistillation were analyzed by GC-MS and their antioxidant and antibacterial activities were evaluated by DPPH and DISC diffusion methods. The results showed that in each of three storage temperatures, some compounds such as pulegone and menthone were main compounds in essential oil, but some of them were reduced in essential oil at room temperature. In antioxidant activity assay, freezing essential oil was stronger than other essential oils. The strongest antimicrobial activity against S. aureus, E. coli, and C. albicans was observed from room temperature essential oil; It can be due to the presence of a higher amount of 1,8-cineol, isomenthone and p-menth-4-en-3-one in this essential oil. In conclusion, the storage of secondary plant products especially essential oils, is an interesting research area which needs further studies with different aromatic plants essential oils.

中文翻译:

贮藏条件对银杏精油的影响

摘要 Ziziphora clinopodioides 是一种可食用的药用植物(属于唇形科),广泛分布于伊朗各地。在伊朗民间传说中,这种植物的干燥地上部分经常用于烹饪以及感冒和咳嗽治疗。目前的工作旨在评估储存条件对精油成分、抗菌和抗氧化活性的影响。处理为三个级别的储存温度,包括室温 (21°C)、冷藏温度 (4°C) 和冷冻温度 (-20°C) 10 天。水蒸馏提取后的精油通过GC-MS分析,并通过DPPH和DISC扩散方法评估其抗氧化和抗菌活性。结果表明,在三种储存温度下,一些化合物如胡叶酮和薄荷酮是精油中的主要化合物,但其中一些在室温下在精油中被还原。在抗氧化活性测定中,冷冻精油比其他精油更强。室温下的精油对金黄色葡萄球菌、大肠杆菌和白色念珠菌的抗菌活性最强;这可能是由于这种精油中存在更多的 1,8-桉树脑、异薄荷酮和 p-menth-4-en-3-one。总之,次生植物产品特别是精油的储存是一个有趣的研究领域,需要对不同的芳香植物精油进行进一步研究。冷冻精油比其他精油强。室温下的精油对金黄色葡萄球菌、大肠杆菌和白色念珠菌的抗菌活性最强;这可能是由于这种精油中存在更多的 1,8-桉树脑、异薄荷酮和 p-menth-4-en-3-one。总之,次生植物产品特别是精油的储存是一个有趣的研究领域,需要对不同的芳香植物精油进行进一步研究。冷冻精油比其他精油强。室温下的精油对金黄色葡萄球菌、大肠杆菌和白色念珠菌的抗菌活性最强;这可能是由于这种精油中存在更多的 1,8-桉树脑、异薄荷酮和 p-menth-4-en-3-one。总之,次生植物产品特别是精油的储存是一个有趣的研究领域,需要对不同的芳香植物精油进行进一步研究。
更新日期:2020-05-03
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