Anthocyanins of red colored leaves of Cercis canadensis L. were found to be 3-glucosides of five common anthocyanidins-of delphinidin, cyaniding, petunidin, peonidin and malvidin with overall accumulation more than 350 mg per 100 g of FW in early summer. The content of anthocyanins gradually drops to total disappearance at the late September. Extract of anthocyanins may content a large amount of flavonoids that are not separated during solid phase extraction (SPE) on C18-silica syringe cartridges. In the paper, the ability of bentonite clay as a sorbent for SPE of anthocyanins was investigated. Non-charged flavonoids were shown to compete with anthocyanins during sorption. Meanwhile sorption ability of anthocyanins markedly exceeds that of non-charged flavonoids. The method for anthocyanins and non-charged flavonoids is proposed.
The textbook contains 15 topics that reveal the specifics of the discipline Economic security". The systems of quantitative and qualitative indicators for assessing economic security are considered; the methodological principles of assessing financial and monetary policy as a sphere of economic security are studied; the conceptual foundations of the regional economic security program are formed; the theoretical foundations of economic security of enterprises are considered. The main problems of economic security are described in the light of national security issues. Security aspects such as the role of the financial system, foreign economic aspects, social security, and the impact of scientific and technical security on economic security are considered. Special attention is paid to the role of law enforcement agencies in ensuring economic security. Methods of ensuring economic security are described that allow combining the analysis of theoretical positions with real practice and providing a higher level of material assimilation by cadets and students. Meets the requirements of the Federal state educational standard of higher education of the latest generation in the specialty 38.05.01 "Economic security (specialty level)".
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.