Processing of biomass materials for the extraction of useful chemicals in the nature of polyphenols, alginate, and fucoidan; Processing of seaweed and fish waste for the extraction of useful chemicals in the nature of polyphenols, alginate, and fucoidan; Treatment of biomass materials by the means of sequential extraction process for the purpose of extracting useful chemicals in the nature of polyphenols, alginate, and fucoidan; Treatment of seaweed and fish waste by the means of sequential e...