Optical properties and radiation stability of extracts of the marine diatom Cylindrotheca closterium (Ehrenb.) Reimann et Lewin

Abstract

For wider implementation of the seafood and obtaining drugs with a definite content of biologically active compounds necessary technological methods of their extraction, stabilization and detection of functional activity. This work is devoted to study of optical properties and radiation stability of alcohol extracts, acetone extracts and selected bioactive compounds from microalgae diatom Cylindrotheca closterium (Sevastopol). Important compounds from brown seaweed Cystoseira are the carotenoid fucoxanthin and chlorophyll, which according to studies of our and foreign scientists have high antioxidant and anticarcinogenic activity. Fucoxanthin concentration (FC) in cells cultured algae diatom Cylindrotheca closterium is 78%. In the work we investigated the content of biologically active compounds, for example, carotenoid and chlorophyll fractions in the extracts of Cylindrotheca closterium. To expand the use of preparations from brown algae it is necessary to know the effect of the nature of algae, methods of cultivation and the nature of solvents on the allocation of valuable biologically-active compounds. Special attention was paid to radiation-chemical stability, as in medicine, is often used for radiation sterilization of feedstock, and obtained from his medical drugs.