PROCESS AND ADSORBING MATERIAL FOR REDUCING PESTICIDE RESIDUES IN VEGETAL EXTRACTS

PROCESS AND ADSORBING MATERIAL FOR REDUCING PESTICIDE RESIDUES IN VEGETAL EXTRACTS

The invention relates to an adsorbing material used for reducing the pesticide level in alcoholic vegetal extracts, which are active intermediaries in the pharmaceutical and cosmetic industry, and to a process for preparing the same. According to the invention, the material is a polysaccharide extra...

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Hauptverfasser: OLARIU LAURA, DRUMEA VERONICA, ZGLIMBEA LENUŢA, NIŢĂ ROXANA
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Sprache:eng ; rum
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CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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creator OLARIU LAURA
DRUMEA VERONICA
ZGLIMBEA LENUŢA
NIŢĂ ROXANA
description The invention relates to an adsorbing material used for reducing the pesticide level in alcoholic vegetal extracts, which are active intermediaries in the pharmaceutical and cosmetic industry, and to a process for preparing the same. According to the invention, the material is a polysaccharide extract of fenugreek (Trigonella foenum graecum) seeds having the following characteristics: hydro-soluble polymer with a content of 50...60% mannose and 30...40% galactose, maximum 6% total proteinaceous substances, maximum 2% ash, maximum 10% loss on drying, minimum 80% soluble fibers. As claimed by the invention, the process consists in hydrating, for 1...4 h, at the temperature of 20...80°C, the polysaccharide extract of fenugreek seeds in 1...10% purified water, to which glutaraldehyde aqueous solution 25% is added for reticulation, the reticulated gel being suspended in a solution of calcium chloride, and kept at the room temperature for 4...48 h, from which sphere- or ovoid-shaped particles are formed and washed with distilled water in order for them to be used as adbsorbing material for retaining pesticide residues.
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subjects CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
title PROCESS AND ADSORBING MATERIAL FOR REDUCING PESTICIDE RESIDUES IN VEGETAL EXTRACTS
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