This study uses derivative spectroscopy to assess qualitative and quantitative information regarding seafloor types that can be extracted from hyperspectral remote sensing reflectance signals. Carbonate sediments with variable concentrations of microbial pigments were used as a model system. Reflectance signals measured directly over sediment bottoms were compared with remotely sensed data from...

The production of fucoxanthin from microalgae is rapidly gaining popularity due to its exceptional productivity, lack contamination, and straightforward extraction process. However, the optimal conditions for increasing biomass concentration and/or content through manipulation light carbon sources are context specific. This study explored metabolism in Nitzschia laevis under heterotrophic mixot...

Anti-oxidative activities of mytiloxanthin, a metabolite of fucoxanthin in shellfish and tunicates, were investigated. Mytiloxanthin showed almost the same activities for quenching singlet oxygen and the inhibition of lipid peroxidation as those of astaxanthin, which is a well-known singlet oxygen quencher. Furthermore, mytiloxanthin showed excellent scavenging activity for hydroxyl radicals an...

Chaetoceros sp. has been found to possess significant amounts of valuable fucoxanthin, phenolics, and flavonoids, with enormous nutraceutical antioxidant potential. The aim this study was employ ultrasound-assisted extraction determine the properties extracts prepared from tenuissimus using different solvents: Propylene glycol (PG), acetone (AC), methanol (ME), difference ultrasonication times ...