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O c t o b e r 1 9 - 2 0 , 2 0 1 8 | T o k y o , J a p a n
Materials Summit 2018 & Separation Summit 2018
Note:
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ADVANCED MATERIALS AND POLYMER SCIENCE
SEPARATION TECHNIQUES
&
International Conference on
International Conference and Expo on
Joint Event on
Materials Science and Nanotechnology | Volume 2
OF EXCELLENCE
IN INTERNATIONAL
MEETINGS
YEARS
Monica Butnariu, Mater Sci Nanotechnol 2018, Volume 2
EXTRACTION OF ESSENTIAL OILS FROM
MEDICINAL PLANTS
In antiquity and the middle ages for the extraction of essential oils the method
of extraction with animal fats was used, although the history of the orient
mention’s knowledge by the Arabs of hydro distillation extraction method. In
the epochs that marked the beginnings of civilization and epoch modern, the
only method, the majority used was the hydro distillation method with water
vapor, which is still used today. In the last years, extraction was attempted
essential oils with microwave. The method of microwave extraction of
essential oils is also a method of hydrodynamics but heating of the medicinal
plants/processing mass uses microwave pumping which results in rapid and
simultaneous heating. That is, a temperature gradient that is propagating from
the inside to the outside of the processing mass is very fast, due to the water
molecules existing in the processed medicinal plants. Water is a microwave
absorber over other materials, that allowmicrowaves to pass without absorbing
their energy. The non-absorbent material is used to build processing facilities
in microwave extraction facilities. The absorption of water from the microwave
by water is since water molecules in the electric field of microwave train are
electrical dipoles that vibrate with the frequency of incident microwaves. In this
situation, water dipoles collide with the molecules of the substances that make
up the essential oils, resulting in heat, and thus transform the electromagnetic
energy of the microwaves into thermal energy, used for the extraction with
water of the essential oils of the medicinal plants.
Biography
Monica Butnariu has completed her PhD in 2005
(Banat University, RO), since 2013 is habilitated doc-
tor/Cluj-Napoca University, RO. She is the Professor
of University of Agricultural Sciences and Veterinary
Medicine of Banat “King Mihai I of Romania” in Ti-
misoara, Romania. She has been serving as an ed-
itorial board member of journals and she has peer
reviewactivity. So far, she has written several books/
book chapters in different areas of Chemistry. She
received Romanian Academy Award for chapter
Chemical Composition of vegetables and their prod-
ucts in book handbook of food chemistry.
Monica Butnariu
Banat’s University of Agricultural Sciences and
Veterinary Medicine “King Michael I of Romania”
from Timisoara, Romania