Colour plays a vital role in marketing any product such as cosmetics, food additives, pharmaceutical products etc. It gives the attractiveness for product. also helps to get attention of customers. Early days synthetic dyes were used colorants these products. The carcinogenic effect and toxic made impact thirst on use natural dyes. Natural are obtained from pigments produced by microorganisms p...

Traditional low-molecular weight colorants that are widely applied in textile coloration, for printing purposes and nonlinear optics, now afford bulk heterojunction solar cells in combination with soluble C(60) fullerene derivative PCBM with power conversion efficiencies up to 1.7% under standard solar radiation.

Mazeyar Parvinzadeh Gashti , Farbod Alimohammadi, Guowen Song, Amir Kiumarsi 1 Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland 2 Young Researchers Club, Textile Department, Islamic Azad UniversitySouth Tehran Branch, Tehran, Iran 3 Department of Human Ecology, University of Alberta, Canada 4 Department of Organic Colorants, Institute for C...

Recent and ongoing developments in the area of food biotechnology could help us meet at least some of these challenges: Among many other topics, current efforts include the development of plants having an enhanced nutritional value or the design and construction of microbial strains for the environmental-friendly production of food and feed additives, such as flavors, colorants, amino acids and...

HIGHLIGHTS Crab apples that could not be consumed were evaluated. Turkish delight is colored with crab apple anthocyanins instead of synthetic colorants. phenolics have added functional properties to Rose-flavored delight.

Many works of art have undergone undesirable changes in color since initial creation. The use of spectral or colorimetric imaging, optical models such as Kubelka-Munk turbid-media theory, sample creation using colorants with similar optical behavior to the artist’s materials, and color-image processing has enabled the simulation of a work of art before the color change. This paper describes thi...