Work

Rowanberry Nectar—The Effect of Preparation Method, Sweetener Addition, and Storage Condition on Bioactive Compounds

Year: 2025

Type: article

Abstract: Rowanberries (Sorbus aucuparia) are valued for their high content of bioactive compounds. This study examined the effects of sweeteners (sucrose, xylitol, erythritol, steviol glycosides), fruit pulp preparation (fresh vs. steamed), and storage conditions (4 °C and 30 °C, 3 months) on the composition of rowanberry nectars. Polyphenols were quantified using LC-PDA-QTOF/MS and UPLC-PDA-FL, and carotenoids, organic acids, antioxidant capacity (FRAP), and physicochemical properties were also determined. Steaming increased total polyphenol levels in nectars by 13–52%, with the highest values observed in formulations containing steviol glycosides (up to 1833 mg/100 mL). Changes in carotenoid content during storage varied depending on the sweetener type. In steamed nectars with erythritol stored at 4 °C, carotenoid levels remained close to those measured in the corresponding unsweetened steamed sample. Storage influenced turbidity and viscosity in all variants, with the largest viscosity increases recorded in stevia- and erythritol-sweetened nectars. Overall, the combined effects of fruit preparation, sweetener type, and storage determined the final composition and stability of rowanberry nectars.

Source: Applied Sciences

DOI: 10.3390/app152312674

Authors: Marta Wilk, Mirosława Teleszko, Paulina Nowicka, Przemysław Seruga, Aneta Wojdyło

Institutions: Wroclaw University of Economics and Business, Wrocław University of Environmental and Life Sciences

Language: English

Topic: Phytochemicals and Antioxidant Activities

Subfield: Biochemistry

Field: Medicine

Domain: Health Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,896