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Geographic Variability of Berry Phytochemicals with Antioxidant and Antimicrobial Properties.
Georgescu, Cecilia; Frum, Adina; Virchea, Lidia-Ioana; Sumacheva, Anastasiia; Shamtsyan, Mark; Gligor, Felicia-Gabriela; Olah, Neli Kinga; Mathe, Endre; Mironescu, Monica.
  • Georgescu C; Faculty of Agriculture Science, Food Industry and Environmental Protection, "Lucian Blaga" University of Sibiu, 550012 Sibiu, Romania.
  • Frum A; Faculty of Medicine, "Lucian Blaga" University of Sibiu, 550012 Sibiu, Romania.
  • Virchea LI; Faculty of Medicine, "Lucian Blaga" University of Sibiu, 550012 Sibiu, Romania.
  • Sumacheva A; Saint Petersburg State Institute of Technology, 190013 St. Petersburg, Russia.
  • Shamtsyan M; Saint Petersburg State Institute of Technology, 190013 St. Petersburg, Russia.
  • Gligor FG; Faculty of Medicine, "Lucian Blaga" University of Sibiu, 550012 Sibiu, Romania.
  • Olah NK; Faculty of Pharmacy, "Vasile Goldis" Western University of Arad, 310045 Arad, Romania.
  • Mathe E; Faculty of Pharmacy, "Vasile Goldis" Western University of Arad, 310045 Arad, Romania.
  • Mironescu M; Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, H-4032 Debrecen, Hungary.
Molecules ; 27(15)2022 Aug 05.
Article in English | MEDLINE | ID: covidwho-1994118
ABSTRACT
The aim of this study was to determine the variability of several chemical compounds and the antioxidant and antimicrobial activities of eight types of berries harvested from two different geographical regions in the same year. The analyses were performed on bilberry, black currant, gooseberry, red currant, raspberry, sea buckthorn, strawberry and sour cherry, which were handpicked during the summer of 2019, in the same periods when they are typically harvested for consumer purposes. Total anthocyanins content (TAC), total flavonoids content (TFC), total polyphenolic compounds (TPC), determination of the Ferric-Reducing Antioxidant Power (FRAP), determination of the DPPH free radical scavenging assay (RSA), determination of nine phenolic compounds by HPLC-UV assay and antimicrobial activity were determined for undiluted hydroalcoholic extracts of all the studied berries. The results showed that the berries from Romania were richer in antioxidant compounds than the berries from Russia. The TPC content varied between 4.13-22.2 mg GAE/g d.w., TFC between 3.33-8.87 mg QE/g d.w. and TAC between 0.13-3.94 mg/g d.w. The highest variability was determined for TPC. Regarding the antioxidant activity assessed by FRAP assay, values were between 6.02-57.23 µmols TE/g d.w. and values for the RSA method between 18.44-83.81%. From the eight types of berries analyzed, bilberries and raspberries had the highest antioxidant activity considering both regions and both determination methods. Not only the type, but also the environmental and cultivation conditions in which the berries grow, can lead to variations in their chemical composition. The extracted polyphenolic compounds from the studied berries showed antibacterial properties on pathogens, such as Escherichia coli, Bacillus subtilis and Staphyloccocus aureus. The inhibitory action on Salmonella typhi and fungi Candida albicans and Aspegillus niger was absent to very low. The antimicrobial activity of the hydroalcoholic extracts was dependent on the provenance of the berries, too.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccinium myrtillus / Ribes / Anti-Infective Agents Topics: Vaccines Language: English Journal subject: Biology Year: 2022 Document Type: Article Affiliation country: Molecules27154986

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccinium myrtillus / Ribes / Anti-Infective Agents Topics: Vaccines Language: English Journal subject: Biology Year: 2022 Document Type: Article Affiliation country: Molecules27154986