Methods of Botanical Extraction Flashcards
what are tinctures
extraction method that uses alcohol or glycerin to extract compounds from a plant
what is the most common form of plant extraction
tinctures
how is a tincture made
plant material is placed in alcohol or glycerin, then after a specified amount of time the material is removed.
if the compound is soluble in alcohol it will remain in the alcohol and tincture.
what are dried herbs used in
in medicine or skin care
what limits the use of dried herbs
the plant material is in its most whole form and natural state.
how are dried herbs used
because they will not dissolve, the dried herbs must be left on for long periods of time and then removed; masks and wraps are good options.
what is the most historically common extraction method
infusions
how are infusions made
the plant material is soaked in hot water (cold water can be used) for a specific period of time, resulting in an infusion.
examples of infusions
tea, vegetable oil, juices, vinegar, and glycerin
what are expeller-pressed oils
these are oils that have been mechanically pressed from seeds, nuts, or plant materials; this produces oils of the purest quality and a high therapeutic strength.
what is a nonvolatile (fixed) oil
a fatty oil derived from vegetables and fruits that does not evaporate.
examples of nonvolatile (fixed) oils
olive oil, grapeseed oil, and jojoba oil
what extraction method produces “organic, natural, or clean” oils for skin care
expeller-pressed
what is the supercritical carbon dioxide extraction method
this method is newer, it involves placing plant material in a high-pressure container with supercritical carbon dioxide
what does the supercritical carbon dioxide method produce
this process produces fragrance that is truer to the plant. this process is gentle and does not cause evaporation
