Page 88 - Zbornik_Konf_2019

https://doi.org/10.15414/2019.9788055220703

4 International Scientific Conference Abstracts Book
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CONTENT OF POLYPHENOLS, FLAVONOIDS AND ANTIOXIDANT ACTIVITY OF FRESH
FRUITS AND JELLIES PREPARED FROM DIFFERENT LESS KNOWN FRUIT SPECIES
Eva Ivanišova , Olga Grygorieva , Svitlana Klymenko , Olena Vergun ,
1
2
1
1
Ján Mareček , Ján Brindza
1
1
1 Slovak University of Agriculture in Nitra, Faculty of Biotechnology and Food Sciences, Department of
Technology and Quality of Plant Products, Slovakia; E-mail.: eva.ivanisova@uniag.sk
2 M.M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine,
Kyiv, Ukraine
Fruits, especially less known species start to be very popular nowadays in gastronomy,
medicine, and pharmacy due to the bioactive compounds but also for specific sensory
properties. It can be consumed fresh, but it is possible to prepare different kind of products,
including jellies. The aim of the study was to determine total antioxidant activity (DPPH and
phosphomolybdenum method) and the content of phenolic compounds of the fresh fruits and
jellies made from one species (Actinidia chinensis Planch Cornus mas L., Diospyros virginiana
L., Chaenomeles japonica (Thunb.) Lindl. Ex Spach, Lonicera caerulea L., Mespilus germanica L.,
Prunus cerasus L., Pseudocydonia sinensis C.K.Schneid., Schisandra chinensis (Turcz.) Baill.,
Viburnum opulus L.) and jellies from two species (Pseudocydonia sinensis + A. chinensis;
P. sinensis + C. mas; P. sinensis + D. virginiana; P. sinensis + Ch. japonica; P. sinensis +
L. caerulea; P. sinensis + M. germanica; P. sinensis + P. cerasus; P. sinensis + Sch. chinensis;
P. sinensis + V. opulus).
Significant variability was observed in phenolic compounds content and total
antioxidant activity. Total polyphenol content of the fresh fruits and jellies made from one
species ranged from 6.02 (A. chinensis) to 12.30 (V. opulus) mg GAE/g (gallic acid equivalent)
and from 5.90 (D. virginiana) to 12.39 (P. sinensis) mg GAE/g; total flavonoid content from
0.06 (C. mas) to 3.33 (L. caerulea) mg QE/g (quercetin equivalent) and from 0.06 (C. mas) to
2.29 (L. caerulea) mg QE/g, respectively. The total polyphenol and flavonoid content in jellies
made from two species ranged from 7.40 (P. sinensis + Ch. japonica) to 11.88 (P. sinensis +
A. chinensis) mg GAE/g and from 0.10 (P. sinensis + P. cerasus) to 0.32 (P. sinensis + L. caerulea)
mg QE/g, respectively. All tested samples exhibited DPPH• radical scavenging activity of the
fresh fruits and jellies made from one species with values from 1.76 (M. germanica) to 6.46–
6.47 (L. caerulea and V. opulus) mg TEAC/g (Trolox equivalent antioxidant activity) and from
1.52–1.57 (M. germanica and A. chinensis) to 6.43 (C. mas) mg TEAC/g, respectively.
Antioxidant activity of tested samples made from one fruit species evaluated by
phosphomolybdenum method ranged from 27.69 (P. sinensis) to 84.04.95 (D. virginiana) mg
TEAC/g and from 78.34 (P. sinensis) to 264.18 (P. cerasus) mg TEAC/g DM, respectively. In
samples made from two fruit species values of antioxidant activity (DPPH method and
phosphomolybdenum method) oscillated from 2.75 (P. sinensis + M. germanica) to 5.51
(P. sinensis + D. virginiana) mg TEAC/g and from 107.17–108.39 (P. sinensis + M. germanica
and P. sinensis + A. chinensis) to 161.64–163.40 (P. sinensis + Ch. japonica and P. sinensis +
Sch. chinensis) mg TEAC/g, respectively. Differences between the tested samples were
significant in all observed parameters.
Thus, results showed that investigated less known fresh fruits exhibited high
antioxidant activity as well as jellies from them. These data can be used for the food
production industry and for pharmacological investigations.
Keywords: non-traditional fruits, bioactive compounds, reducing power, DPPH
•
Acknowledgments
The publication was prepared with the active participation of researchers in international network
AgroBioNet, within the project ITEBIO-ITMS (26220220115) and also with financially supported by
scholarships from International Visegrad Fund (51910148), National Scholarship Programme of the
Slovak Republic, and Polish National Commission for UNESCO.

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September 11–13, 2019