Organic Acids Sea buckthorn berries contain organic acids, mainly malic acid and quinic acid, which together compose approximately 90% of all fruit acids of different origins. Large variations exist between the concentrations of sea buckthorn acids of different origins. The subspecies of Hippophaë rhamnoides L. from Russia showed relatively low concentrations of total acidity (2.1–3.2 g/100 mL), the Finnish were at [...]