Fruit maturity stage in relation to content of polyphenols, flavonoids and antioxidant activity of selected clones of Lonicera kamtschatica (Sevast.) Pojark

Abstract

The article is dealing with evaluation of four fruit maturity stages of 6 selected clones (LKL-3, LKL-14, LKL-19, LKL-33, LKL-96 and LKL-103) of Lonicera kamtschatica (Sevast.) Pojark in relation to total polyphenols, flavonoids content and antioxidant activity of berries. The experiment in 5 replications of each clones has been established in the conditions of Botanical Garden in Nitra (Slovak republic)in 2016. The results of analyses proved that in respect of the total polyphenols content (TPC), the content of flavonoids (FC) and the antioxidant activity the most valuable clones at the stage of full ripened fruit were following: LKL-14 (8.77; 2.57 g/kg FW; 9.07 g/kg), LKL-33 (6.77; 2.84 g/kg FW; 9.16 g/kg) and LKL -3 (8.19; 2.61 g/kg FW; 8.94 g/kg). The results of statistical analyses by one-way analysis of variance proved significant differences among assayed clones in total flavonoids and antioxidant activity of fruit but no differences among content of total polyphenols and assayed stages of fruit maturity.

Metabolomic profiles of <i>Ribes nigrum</i> L. and <i>Lonicera caerulea</i> L. from the collection of the N.I. Vavilov Institute in the setting of Northwest Russia

“…We identified only hydroxyproline and leucine in the group of free amino acids, which disagrees with the study by Sochor et al (2014). The composition of organic acids and sugars in the honeysuckle fruit samples studied by us corresponds to the data from the works by Rop et al (2011), Sochor et al (2014, Senica et al (2018), Gołba et al (2020), andJuríková et al (2020).…”

“…A comparative analysis of the data obtained by us with the results of other researchers revealed a number of discrepan cies associated with differences in conditions for the material regeneration and methodological approaches chosen for the study. In the papers mentioned above, the authors underline the dependence of the biochemical composition of fruits on growing conditions (region), which confirms the relevance of our work (Rop et al, 2011;Sochor et al, 2014;Lee et al, 2015;Mattila et al, 2016;Senica et al, 2018;Tian et al, 2019;Gołba et al, 2020;Juríková et al, 2020).…”

How to Keep University Active during COVID-19 Pandemic: Experience from Slovakia

“…The result is a number of common publication outputs in databases: [50,51]. In 2020, significant international cooperation was also developed with scientists from Turkey, Bulgaria, and Poland [52][53][54]…”