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Type of publication: conference paper
Type of publication (PDB): Tezės kituose recenzuojamuose leidiniuose / Theses in other peer-reviewed publications (T1e)
Field of Science: Farmacija / Pharmacy (M003);Biologija / Biology (N010)
Author(s): Dūdėnas, Mantas;Kaškonienė, Vilma;Maruška, Audrius;Ragažinskienė, Ona;Obelevičius, Kęstutis
Title: Biologically active compounds of hop (Humulus lupulus L.) plant and cones
Is part of: Vital nature sign : 11th international scientific conference, 19-20 October, 2017, Vilnius, Lithuania : abstract book / editors Nicola Tiso, Vilma Kaškonienė. Kaunas : Vytautas Magnus University, 2017, [no. 11]
Extent: p. 39-39
Date: 2017
Note: Financial support from Research Council of Lithuania project 09.3.3-LMT-K-712-03-0133 is acknowledged
Keywords: Humulus lupulus;Biologically active compounds;Phytochemical composition;Spectrophotometry
Abstract: Hop (Humulus lupulus L.) is a plant which is probably the best known for being used in the brewery as its cones are responsible for the characteristic bitter taste of beer. Bitter α- and β-acids found in hops cones have antibacterial properties, which in part provides resistance against beer-spoiling microorganisms. Also, other studies show that there are more biologically active compounds (i.e. xanthohumol, 8-prenylnaringenin and others) found in hops that have anti-cancer, radical scavenging, peroxide reducing and antioxidant properties [1-3]. It is very likely that biologically active compounds are accumulated not only in the cones of hops but also in other parts of the plant. There are little data about biologically active compounds in other parts of the hop plant. Identification and optimization of purification processes of biologically active compounds in other parts of the hop plant would probably allow finding more diverse applications of hop harvest. The distribution of biologically active compounds depends on the part of the plant, variety, phase of vegetation and geographical location of the plant. The purpose of this study was to evaluate and compare the phytochemical composition of biologically active compounds in different parts of H. lupulus L. plant growing in Kaunas Botanical Garden of Vytautas Magnus University, Lithuania. To our knowledge, it is the first study about antioxidant activity of different parts of hops collected in Lithuania. The phytochemical composition was analyzed using spectrophotometric methods. The total amount of phenolic compounds, the total content of flavonoids and antiradical activity (using 1,1-diphenyl-2-picrylhydrazyl (DPPH)) were determined [4]. Results were expressed as rutin equivalents mg/g of the plant. The results of the assays will be presented during the conference
Affiliation(s): Biochemijos katedra
Botanikos sodas
Gamtos mokslų fakultetas
Instrumentinės analizės APC
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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