The demand for natural colors is increasing day by day due to harmful effects of some synthetic dyes. Bacterial and fungal pigments provide a readily available alternative source of naturally derived pigments. In contrast to other natural pigments, they have enormous advantages including rapid growth, easy processing, and independence of weather conditions. Apart from colorant, bacterial and fu...

This experimental study was focused on the study of assimilatory pigments and nucleic acid levels in young plants intended for agricultural use (Zea mays) in presence of water based magnetic fluid in culture medium. The water based magnetic fluid was constituted by coating the small magnetic nanoparticles with perchloric acid and further dispersion in water. Saturation magnetization of our magn...

in this experiment, the possibility of growth promoting of exogenous salicylic acid during two growth stags on chlorophyll content, yield and yield components of canola plant was investigated. for the purpose of improving above traits, salicylic acid was applied in four concentrations (0, 100, 200 and 400 µm) during two different growing stages (first time; when temperature was close to 7-10 °c...

In recent years pigments have been identified in human nutrition to have a positive effect on human health and reduction to oxidative stress exposure. In the media it has become common wisdom that colourful food is naturally better to consume for humans and animals. Now recently it has been shown that pigments aid microbial species as well, and conversely these microbial pigments may result in ...

In the present study, the effect of seed priming with magnetic field (MF; 45, 90, 200 and 250mT for 5, 10, 20 and 30 min) was evaluated in 60-day-old Hyssopus officinalis plants grownunder 8 days irrigation intervals. The assessments were consisted of biomass, membranestability, photosynthetic pigments concentrations, polyphenols content, antioxidant enzymesactivities an...

The secretion from the hippopotamus’ skin changes its color from colorless to red, and then brown by polymerization of its pigments. The responsible pigments for the coloring reaction were isolated and denoted as hipposudoric acid (the red pigment) and norhipposudoric acid (the orange pigment). The syntheses of these pigments and the related derivatives were performed, and the latter were of us...

BACKGROUND AND PURPOSE The edible blue pigments produced by gardenia fruits have been used as value-added colorants for foods in East Asia for 20 years. However, the biological activity of the blue pigments derived from genipin has not been reported. METHODOLOGY/PRINCIPAL FINDINGS The anti-inflammatory effect of blue pigments was studied in lipopolysaccharide (LPS) stimulated RAW 264.7 macrop...

Johan Lindgren introduces fossil pigments.