In this article, the effect of potassium on structure and anticorrosion properties of zinc phosphate pigments has been investigated. The co-precipitation method was selected as synthesis method of potassium zinc phosphate pigment. Then the synthesized pigment was characterized by x-ray diffraction XRD, Fourier transform infrared FTIR and Raman spectroscopy. Morphology of the powders was investi...

lycopene is a natural and dominant pigment in tomato with coloring and antioxidant properties, which nowadays the demands for its extraction enhancement from tomato and tomato products are increasing. in this study, the effect of pectinase enzyme pre-treatment at 2- 10 ml/kg and also washing with 94% ethanol at 60°c for 5 seconds was studied. in these conditions, treating with 10 ml/kg enzyme c...

Anthocyanin is the natural pigment which can easily extract from plants such as blackberry, mulberry and Karanda. Karanda (Carissa carandas Linn.) had the fully ripe dark violet fruit contains the large amount of natural anthocyanin. The effect of extraction conditions on anthocyanin content, total phenolic content, and antioxidant activity in the extract was investigated. The extract with high...

Visual neural representation is constrained by the statistical properties of the environment. Prior analysis of cone pigment excitations for natural images revealed three principal components corresponding to the major retinogeniculate pathways identified by anatomical and physiological studies in primates. Here, principal component analyses were conducted on the excitations of rhodopsin, cone ...

Due to the awareness of impact synthetic dye on human health and environment, natural lake pigment have attracted considerable attention from researcher. Herein, pink−red sappanwood was prepared using adsorption approach. The effects initial pH, pH concentration brazilein solution, dosage aluminium hydroxide, time were also explored. Results showed that maximum capacity 30 mg g-1 achieved when ...