Carotenoids (carotenes and xanthophylls) are ubiquitous constituents of living organisms. They are protective agents against oxidative stresses and serve as modulators of membrane microviscosity. As antioxidants they can protect photosynthetic organisms from free radicals like reactive oxygen species that originate from water splitting, the first step of photosynthesis. We summarize the structu...

Algae taxa are notably diverse regarding pigment diversity and composition, red seaweeds (Rhodophyta) being a valuable source of phycobiliproteins (phycoerythrins, phycocyanin, allophycocyanin), carotenes (carotenoids xanthophylls), chlorophyll a. These pigments have considerable biotechnological potential, which has been translated into several registered patents commercial applications. Howev...

In this work, COSMO-SAC was used to calculate infinite dilution activity coefficients (??) of carotenoids in CO2+ethanol mixtures as a theoretical approach evaluate the effect solvent composition on solute solubility. an experimental approach, central composite design employed use supercritical extract chlorophylls and from microalga Chlorella sorokiniana. The carotenoid profiles extracts were ...

Microalgae are described as a potential alternative source of bioactive compounds that environmentally friendly. Dunaliella on its own is well known due to accumulate large amounts carotenoids, especially β-carotene. Green and orange biomasses from new salina strain DunaDZ1 isolated an Algerian Salt Lake were evaluated for carotenoids composition antioxidant activity. Ultrasound-Assisted Extrac...

The number of determinations of tocopherols in muscle tissue reported in the literature is small. This may be due to the complexity and timeconsuming technique of both the chemical and biological methods, as well as to the poor agreement between the two assays. An accurate account of the chemical assay of vitamin E has recently been compiled in Dr. K. C. D. Hickman’s 1aboratory.l The fact that ...

Major chloroplast pigments in five leafy vegetables (chicory-Cichorium intybus, cv. 'Anivip' and cv. 'Monivip', dandelion-Taraxacum officinale, garden rocket-Eruca sativa and wild rocket-Diplotaxis tenuifolia), commonly consumed in Mediterranean countries, have been separated by high-performance liquid chromatography (HPLC) on a reversed-phase column. Three classes of pigments were identified a...