نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیارگروه بیوتکنولوژی، دانشکده علوم زیستی، دانشگاه الزهرا، تهران، ایران
2 دانشجوی کار شناسی ارشد گروه بیوتکنولوژی، دانشکده علوم زیستی، دانشگاه الزهرا، تهران، ایران
3 استادیار بیوتکنولوژی، دانشکده علوم زیستی، دانشگاه الزهرا، تهران، ایران
4 استادیار گروه بیوتکنولوژی، دانشکده علوم زیستی، دانشگاه الزهرا، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Microalgae are one of the rich sources of antioxidant compounds with health benefits. The synthesis of such compounds in microalgae cells can be increased under stress conditions. The aim of this study was to investigate the effect of heavy metals on antioxidant compounds production. For this purpose, both Monoraphidium and Scenedesmus strains were first cultured in BBM medium and after reaching the appropriate growth, they were treated with mercury chloride under stress conditions. Total antioxidant activity was measured by FRAP and DPPH methods, also photosynthetic pigments and superoxide dismutase activity were examined. The growth rates and the amount of antioxidant compounds decreased in both Monoraphidium and Scenedesmus microalgae under different concentrations of mercury chloride stress. However, the activity of superoxide dismutase increased while mercury chloride concentration increased. The results of this study showed that by removing heavy metals from algae medium, a suitable environment is provided to increase the specific compounds and these microalgae compounds cab be used in the pharmaceutical, medical and food supplements industries.
کلیدواژهها [English]