Evaluation of phenolic compound composition of Sambucus nigra berries grown in Latvia
Laen...
Kuupäev
2024
Kättesaadav alates
Autorid
Avena, A.
Ozola, L.
Keke, A.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Phenolic compounds in agricultural raw materials can vary within a species and can be
affected by a combination of such factors as growing region, weather conditions and fruit
ripeness. Climatic differences between the southern, central and northern parts of Europe can
cause differences in the phenolic compounds present in the plant. The research was aimed to
investigate the phenolic compounds of berries of Sambucus nigra varieties grown for commercial
production in Latvia. During the study four elderberry varieties were analysed - ‘Haidegg 17’,
‘Korsör’, ‘Haschberg’ and ‘Emma’. All samples were analysed for total phenolic compound
content (TPC), DPPH free radical scavenging activity and individual phenolic compounds. In
addition, sample pH and total soluble solids (TSS) were measured. Results showed that ‘Emma’
berry samples had the highest value of TSS content - 10.5% (°Bx) and the lowest pH value - 3.65.
The variety ‘Korsör’ showed the lowest TSS content - 8.1% (°Bx) as well as the lowest TPC and
DPPH free radical scavenging activity, the variety ‘Haschberg’ showed the highest pH value. The
variety ‘Haidegg 17’ stood out with a high TPC. In total six phenolic compounds were identified
and quantified in the analysed samples - gallic acid, catechin, chlorogenic acid, p-coumaric acid,
sinapic acid and 3,5-dihydroxybenzoic acid. According to the obtained results, it was evident that
the indicators for some parameters differ from the information available in the literature about
the composition of berries of crops grown in other regions. This suggests that it is worth further
researching elder tree varieties grown in northern climate.
Kirjeldus
Received: January 31st, 2024 ; Accepted: April 4th, 2024 ; Published: April 11th, 2024 ; Correspondence: anita.avena@gmail.com
Märksõnad
DPPH, elderberry, HPLC-PDA, polyphenols, soluble solids, articles