Effect of the packaging type on the quality parameters of sea buckthorn syrup

Sea buckthorn syrup is a product that derives from the sea buckthorn fruits, an alternative crop for the Subcarpathian region of Moldova and Muntenia, Romania. The purpose of this study is to analyze a series of physico-chemical parameters of home-made sea buckthorn syrup stored in three kinds of packaging (glass (symbolized G), PET plastic (symbolized PET) and aluminized cardboard symbolized (AC)), in order to highlight the influence of packaging on product quality and shelf life. The duration of the study was six months, from September 2022 to February 2023, with measurements of the physico-chemical parameters being performed approximately every 30 days. The effect of storage period on the quality parameters, pH, (o)Brix, density, titratable acidity, electrical conductivity, antioxidant activity (ascorbic acid content), and sensory attributes was investigated. Significant variations were observed for the content of total soluble solids (degrees Brix), which reflects the sugar content, and antioxidant activity.