Chemical properties in the fruits of plum cultivars grown in western Serbia

The objective of this study was to examine the chemical properties (soluble solids, total sugars, invert sugars, proteins, sucrose, titratable acidity, and pH) in the fruits of 10 introduced plum cultivars (‘Katinka’, ‘Opal’, ‘Viktorija’, ‘Hanita’, ‘Jubileum’, ‘Valor’, ‘Stanley’, ‘Jojo’, ‘Presenta‘, and ‘Tegera’), 13 plum cultivars developed within the breeding programme at the Fruit Research Institute in Čačak (‘Čačanska Rana’, ‘Boranka’, ‘Čačanska Lepotica’, ‘Valerija’, ‘Timočanka’, ‘Čačanska Najbolja’, ‘Zlatka’, ‘Valjevka’, ‘Mildora’, ‘Nada’, ‘Krina’, ‘Pozna Plava’, and ‘Čačanska Rodna’), as well as myrobalan plum (Prunus cerasifera Ehrh.). During the three-year experimental period, significant differences were observed among the cultivars in the tested parameters.
Soluble solids content was highest in ‘Mildora’, and the lowest in Prunus cerasifera. ‘Mildora’ also exhibited the highest values of total sugars and pH, as well as the lowest level of titratable acidity.
In contrast, the highest invert sugar contents were determined in ‘Krina’ and ‘Hanita’. The difference in protein content between the cultivars with the highest and lowest values was 1.89-fold, while the difference in sucrose content was 2.89-fold.
Generally, a high content of protein was found in the myrobalan plum, whereas ‘Stanley’ and ‘Mildora’ exhibited a high content of sucrose.
The results indicated that the tested cultivars are rich in primary metabolites, and that the genetic background of each cultivar plays a significant role in determining their composition and content in plum fruits.

EHC2024: International Symposium on Postharvest and Horticultural Products Quality

S.M. Paunović, M. Milinković, Ž. Karaklajić-Stajić, J. Tomić, B. Rilak

Prunus domestica L., cultivar, primary metabolites

https://doi.org/10.17660/ActaHortic.2026.1458.25