A Suitable Method for Polyphenols Complexes with Copper
Journal Title: BULETINUL INSTITUTULUI POLITEHNIC DIN IASI, CHIMIE SI INGINERIE CHIMICA - Year 2018, Vol 64, Issue 3
Abstract
Polyphenols represent a class of natural compounds with significant bioactive attributes. One of the important property of polyphenols is the complexing of ion metals. Following this process, some complexes with impressive antioxidant properties could be obtained. The literature lists several methods considering different polyphenols, ion metals and reaction solution as well as experimental conditions including concentration, pH and temperature. This great variety of possibilities requires an analysis to establish the suitable reaction solution and the main parameters as well as their range of variation. Withal, some polyphenols model molecules have to be proposed.
Authors and Affiliations
ROXANA-PETRONELA DAMASCHIN, Valentin I. Popa, Irina Volf
Microcrystalline Cellulose as Adsorbent for Removal of Dyes from Wastewaters
Batch adsorption studies were carried out for the adsorption of some dyes (Brilliant Red HE-3B, Orange 16, Rhodamine B and Methylene Blue) onto a new versatile cellulose-based product (Cellet), to be a new adsorbent. Stu...
ANALYTICAL METHODS FOR ANALYZING SOME OILSUSED IN COSMETICS
In this paper three different oils have been analysed: sesame, olive and jasmine. For their analyses standard methods for oils and fats described by American Oil Chemists Society (AOCS, 1993) and pharmacopoeia assays (Br...
Rheological Behaviour of Some Gels Based on Gelatin
Gelatin is used as an ingredient in many foods and pharmaceuticals as a gelling and thickening agent. The rheological properties are very important in the study of gelatin solutions. The change in the rheological behavio...
Simple and Rapid Spectrophotometric Method for Phenol Determination in Aqueous Media
Simple and selective determination of phenol from aqueous media was spectrophotometrically examined using ferric chloride as colour reagent. The reaction between phenol and FeCl3 occurs rapidly (1-2 min), without to be n...
Experimental Equipment Used in the Study of Carbon Dioxide Absorption (I)
The continuing increase demand in global energy has led a faster raw material depletion and increased exploitation of hydrocarbon fuels. Before using natural gas, it is necessary to remove acid gases (H2S and CO2), to in...