Abstract
Analysis of Bioactive Compounds from Different Algae Samples Extracted with Ultrasound: Characterizations, Phytochemical Contents and Antioxidant Potentials
Highlights
Algae are a significant bioactive compounds source, with variation in biological functions including antioxidant, anti-inflammatory and antiviral
The improvement in yield for the ultrasound method resulted from the acoustic cavitation by ultrasound through the liquid which increased the rupturing of algae cell wall when the bubbles violently collapse creating intense pressure about 103 bar.[25] at the surface of the solid matrix and increased contact between compounds and solvent resulting in solubility of compounds and their transport into medium.[25]
The extraction medium provides an additional extraction power to the whole extraction process with its ability to leach compounds, both ethanol and water-soluble compounds were accessed after the rupturing of cell wall content for all algae samples as compared to the conventional method and this can be attributed to the impact cavitation had on the cell containing compounds and their solubility in the extraction solvents (Table 2) The possible redox of phenol composites enables them to function as reducing agents, as hydrogen donors, as singlet oxygen quencher and as a metal chelator.[29]
Summary
Algae are a significant bioactive compounds source, with variation in biological functions including antioxidant, anti-inflammatory and antiviral Both microalgae and macroalgae biomass are a rich source of high value nutraceuticals and other bio products of commercial value, making algae worth investigating into. Algae are ubiquitous in nature with various types, mostly found in fresh water, seawater, hot springs, saline and hypersaline lakes, desert and even in the arctic ecosystem.[1,2] Algae contains chlorophyll like other plants but lacks the well-defined plant features like leaves, roots, vascular tissue, and stems They are a complex group that can manifest themselves in a variety of species and strains that are almost infinite and are classified under microalgae and macroalgae. Algae are ecologically important in waterways and have a direct effect on the benefits people receive from these habitats
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