Curcuma longa L. essential oil and anthocyanin extracts contain bioactive compounds such as antioxidant properties their pigments are able to change color when exposed different pH or ammonium gas. In this context, the objective of present work was develop pH-sensitive intelligent films by adding curcuma (composed oils pigments) a chitosan matrix reinforced with alpha-chitin nanocrystals. The i...

Climate is a major selective force in nature. Exploring patterns of inter- and intraspecific genetic variation in functional traits may explain how species have evolved and may continue evolving under future climate change. Photoprotective pigments play an important role in short-term responses to climate stress in plants but knowledge of their long-term role in adaptive processes is lacking. I...

Color is the first feature of foods noticed by consumers; It one essential sensory properties that directly affect acceptance foods. Although have unique colors, there are losses due to external factors such as temperature, acidity, and light during processing. Today, artificial coloring agents frequently used preserve color Scientific studies revealed adverse effects colorants on health, numbe...

Betalain pigments are unique to the Caryophyllales and structurally and biosynthetically distinct from anthocyanins. Two key enzymes within the betalain synthesis pathway have been identified: 4,5-dioxygenase (DODA) that catalyzes the formation of betalamic acid and CYP76AD1, a cytochrome P450 gene that catalyzes the formation of cyclo-DOPA. We performed phylogenetic analyses to reveal the evol...

Development of a phenotyping platform capable of noninvasive biochemical sensing could offer researchers, breeders, and producers a tool for precise response detection. In particular, the ability to measure plant stress in vivo responses is becoming increasingly important. In this work, a Raman spectroscopic technique is developed for high-throughput stress phenotyping of plants. We show the ea...

Passive optical hyperspectral remote sensing of plant pigments offers potential for understanding plant ecophysiological processes across a range of spatial scales. Following a number of decades of research in this field, this paper undertakes a systematic meta-analysis of 85 articles to determine whether passive optical hyperspectral remote sensing techniques are sufficiently well developed to...

the objective of this work was to study the responses of two baby lettuce (lactuca sativa l.) cultivars, namely, green paris island and red sanguine, to different nacl concentrations (0, 5, 10, and 20 mm). the study was conducted in a floating system and plants were harvested at the stage of 5-6 leaves, outside leaf 6-10 cm in length (25 and 31 days after sowing for green and red lettuce, respe...

Anthocyanin pigments from varieties of black, red and wild rice were identified and quantified to evaluate their potential as nutritional function, natural colorants or functional food ingredients. Anthocyanin extraction was conducted with acidified methanol with 0.1M HCl (85:15, v/v) and identification of anthocyanin, aglycone and sugar moieties was conducted by comparison with purified standa...

Rice (Oryza sativa L.) is the primary staple food for half of world population. It generally classified based on grain color into black, red, purple, brown, green, and white. These colored rice are determined by composition concentration anthocyanin pigments in different layers aleurone, pericarp, seed coat. Anthocyanins also accumulated various tissues plants, mostly grain, but presents leaves...