Extraction 21.1 Introduction One area in food and chemical processing industries that is receiving increasing attention is extraction. Extraction or solvent extraction is the process of separating a component substance (the solute) from a solid or liquid mixture by dissolving it in a liquid solvent. This separation process involves two phases. The solvent is the material added to form a phase different from that where the material to be separated originally was present. Separation is achieved when the compound to be separated dissolves in the solvent while the rest of the components remain where they were originally. The two ...
Extraction The process of extraction is a generally accepted method of the active constituents. • Extraction will remove only those substances which can be dissolved in the liquid known as solvent. Extraction • The undissolved portion of the drug that remains after the extraction process is completed is known as the marc. • The product of the extraction process is known as the extractive and is usually a mixture of substances. Extraction • Usually drugs are grinded before extraction to decrease particle size and increase surface area available for solvent to extract the material, and hence increasing the efficiency of ...
P. R. GOVERNMENT COLLEGE (A), KAKINADA B. Sc. (Analytical Chemistry) SEMESTER – III Paper - III (ANALYTICALCHEMISTRY-3) 60 hrs. (4h/w) SEPARATION METHODS - I UNIT–I 12hrs SOLVENTEXTRACTION: Introduction, principle, techniques, factors affecting solvent extraction. Different types of Solvent extraction techniques- Batch extraction, continuous extraction and counter current extraction. Application - Determination of Iron (III) UNIT–II 12hrs CHROMATOGRAPHY: A. Classification of chromatographic methods: Principle of differential migration, description of the chromatographic process, distribution coefficients. B. Chromatography – theory and practice: Introduction, the chromatograph (elution time and volume), capacity factor, column efficiency and resolution UNIT–III 12hrs A. Techniques of ...
International Journal of Applied Pharmaceutics ISSN - 0975 - 7058 Vol 12, Special Issue 1, 2020 Research Article APPLICATION OF GREEN EXTRACTION METHODS TO RESVERATROL EXTRACTION FROM PEANUT (ARACHIS HYPOGAEA L.) SKIN 1 1 1 2 1 REZI RIADI SYAHDI , RATNA NADYANA , RIZQI HERU PUTRI , ROSEDIANA SANTI , ABDUL MUN’IM * 1Department of Pharmacognosy Phytochemistry, Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia. 2Department of Biomedical Computation, Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia. Email: munim@farmasi.ui.ac.id Received: 02 October 2019, Revised and Accepted: 24 December 2019 ABSTRACT Objective: This study compared the maceration extraction method with non-conventional ...
PDF | 0.46 MB | Free Download
