Plant extracts are extremely complex, multicomponent mixtures and the degree of difficulty in accurate quantification of plant hormones is determined mainly by their low concentration in extracts (Hooykaas et al., 1999).As we know, endogenous plant hormones are present at trace amounts in plants, usually at the level of 0.1–50 ng/g fresh weight (FW).
May 12, 2014· Extract (Science: pharmacology) a concentrated preparation of a vegetable or animal drug obtained by removing the active constituents therefrom with a suitable menstruum, evaporating all or nearly all the solvent and adjusting the residual mass or powder to a prescribed standard.
Plant Extracts - definition. Definition: Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.: coordinate with specific plant and PLANT STRUCTURES term; for use in therapy coordinate IM or NIM with phytotherapy (IM) + disease/drug ther (IM) + specific .
May 12, 2014· Plant extracts. plant extracts. Concentrated pharmaceutical preparations of plants obtained by removing the active constituents therefrom with a suitable menstruum, evaporating all or nearly all the solvent, and adjusting the residual mass or powder to a prescribed standard.
An extract is a substance that has been obtained from something else, for example by means of a chemical or industrial process. Blend in the lemon extract, lemon peel and walnuts. ..agrances taken from plant extracts.
Define Plant extract. Plant extract synonyms, Plant extract pronunciation, Plant extract translation, English dictionary definition of Plant extract. n. 1. Herbal medicine. 2. The study of the use of medicinal herbs around the world. 3. The business of growing, collecting, and distributing herbal.
Jul 11, 2012· For example, rosemary is an aromatic plant well known for its antioxidant properties due to polyphenolic compounds such as carnosol and rosmarinic and carnosic acids. After distillation of the essential oil, the residue can be re-processed to extract natural antioxidants, in very high demand by the agro food and cosmetics industries.
May 12, 2014· Medicinal plant. Definition. noun. Any plant whose roots, leaves, seeds, bark, or plant part is used for therapeutic, tonic, purgative, or other health-promoting purposes. Supplement. Humans using plants for medical or therapeutic purposes can be traced back in the earliest times believing that these plants can cure, treat, or prevent illnesses.
For example, scientists can take the gene for the Bt pesticidal protein and introduce the gene into the plant's own genetic material. Then the plant, instead of the Bt bacterium, manufactures the substance that destroys the pest. The protein and its genetic material, but not the plant itself, are regulated by EPA.