Abstract
Urgency of the research. One of the priority issues facing the modern institutions of the restaurant business is the creation of fundamentally new technologies, wide and comprehensive application of high quality foods, which have a health improving impact on the human body.In this context, using herbal ingredients which are rich in flavonoids (vitamin P) and have powerful antioxidant effects on the human body and tonic effect on the blood circulatory system is promising for the creation of health improving foodstuffs.Target setting. To use shiitake mushrooms in the health improving food technology, it is necessary to conduct researches aimed at detecting vitamin P activity in the domestic shiitake powder.Actual scientific researches and issues analysis. Over the past few decades more than hundreds various researches regarding food and therapeutic properties of the higher fungi including shiitake mushrooms have been conducted in Japan, China, the United States and the United Kingdom of Great Britain.Uninvestigated parts of general matters defining. In spite of a great number of studies on the chemical composition of shiitake mushrooms and their powders, there is a lack of data on the qualitative and quantitative flavonoid content in the powders produced from the shiitake mushrooms grown in Ukraine.The research objective. The thesis covers the results of the efficient detection of the flavonoid substances in the powders produced from the shiitake mushrooms grown in Ukraine.The statement of basic materials. The extraction of shiitake mushroom powder (Lentinus edodes) and further study on its ability to cause the vitamin P activity have been conducted. The ethanol extracts of shiitake mushrooms cultivated in Ukraine are found to contain phenolic compounds. When 70% aqueous solution of ethanol is used as an extractant, the output of of the extractive substance is twice as much as when 96% ethanol is used. 70% ethanol extract contains phenolic compounds which have the similar structure as flavonoid quercetinConclusions. The powder of shiitake mushrooms grown in Ukraine contains flavonoid substances, similar to quercetin, so it is capable of the vitamin P activity, which makes it a promising ingredient to create new health improving foodstuffs.
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