I am asking your experiences, sorry for misused word ``and`` instead of ``have``.

I know some sterogenic material( such as drug that regulate periodic cycle in women(  can affect this item 

Depending on the source, essential oil can have antimicrobial actions in the vase solution. Rosemary is an example. 

Thank you all for your responses. 

If crop is grown for essential oil extraction, it should be freshly harvested and should be taken to extraction unit early so that there is no loss to volatile compounds. 

Because of their antiseptic properties such as Thyme plant, they can prolong the shelf life of cut flower.

Check this link maybe useful

https://barefut.com/the-biological-role-of-essential-oils-within-plants/

regards

Essential oils are highly concentrated oils extracted from aromatic plants such as lavender and rosemary. There are 700 different types of plants that contain useful aromatic oils. There are many ways to extract these oils, and the most famous of these methods are distillation. The distillation of essential oils in the home is relatively cheap since the purchase of ready-made essential oils is very high . Specify plant harvesting time. The amount of oil extracted from the plant depends on the plant's current location in its life cycle, so it is important to harvest each type of plant at the right time. You need to do some research to find out the best time to harvest the plants you wish to distill. For example, the tulip must be harvested after nearly half of the leg has been wilted. The rosemary must be harvested on the other hand after its full flowering.

Harvest the plants the right way. In the same way you know the optimum time to harvest plants, you also need to know the best way to do it. Improper handling or harvesting of plants at wrong times or use of defective parts may reduce the quantity and quality of essential oils. For example, you should use only flowering upper parts of rosemary when extracting rosemary oil. Dispose of other plant parts or use them differently.

Most aromatic oils are found in the oil glands, and in the very fragile vessels and capillaries. You will get less oil if you break these capillaries and vessels. Treat the plant gently and do not manipulate it as much as possible.