Article | REF: J4922 V1

The six principles of Green extraction of natural products

Authors: Farid CHEMAT, Anne-Sylvie FABIANO-TIXIER, Maryline ABERT-VIAN

Publication date: November 10, 2018, Review date: March 10, 2021

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6. Principle 6: give priority to naturalness

6.1 Context

The concept of naturalness is rather difficult to define, particularly in the case of plant extracts where the definition of a truly natural extract is unclear. According to the REACH legislation , a natural substance is "a natural substance, as such, unprocessed or processed only by manual mechanical or gravitational means, by dissolution in water, by flotation, by extraction with water, by steam distillation or by heating solely to remove water, or which is extracted from air by any means". This definition includes that the substance must not be chemically modified; in other words, its molecular structure...

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Principle 6: give priority to naturalness