These are unprecedented times. The following are photos taken to capture the Covid-19 pandemic and how it affected our communities and the people that live in them.
By Jade Shutes, New York Institute of Aromatic Studies
The International Organization for Standardization (ISO) in their Vocabulary of Natural Materials (ISO/D1S9235.2) defines an essential oil as a product made by distillation with either water or steam or by mechanical processing of citrus rinds or by dry distillation of natural materials. Following the distillation, the essential oil is physically separated from the water phase.
According to Dr. Brian Lawrence “for an essential oil to be a true essential oil, it must be isolated by physical means only. The physical methods used are distillation (steam, steam/water and water) or expression (also known as cold pressing, a unique feature for citrus peel oils). There is one other method of oil isolation specific to a very limited number of essential oil plants. This is a maceration/distillation. In the process, the plant material is macerated in warm water to release the enzyme-bound essential oil. Examples of oils produced by maceration are onion, garlic, wintergreen, bitter almond, etc.”.2
- Explore different methods of extracting essential oils here
This is an excerpt taken directly from the National Association for Holistic Aromatherapy. You can read the entire, very interesting article here.
Essential oil is concentrated hydrophobic liquid containing chemical compounds from plant material such as, seeds, wood, flowers, leaves and resins. The liquid is extracted through several methods of distillation including steam, expression, solvent extraction and absolute extraction.
The chemical compounds found in the liquids assist plants in fighting off pests and diseases and protect the plants during droughts and extreme weather conditions. The use of essential oils for medical, spiritual and emotional support in humans dates back to ancient times. More recently, studies within the pharmaceutical and medical communities confirm that these same constituents can be beneficial to humans in fighting certain bacteria, fungi and viruses as well as supporting the brain in emotional responses, depression and anxiety.
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