Effects of different factors on the content of phenolics, anthocyanins, antioxidants and colour parameters in two varieties of Aronia and three varieties of Saskatoon berries were evaluated. The berries were extracted by dynamic solvent extraction using three different solvents (water, 50% ethanol ( v /v) and dimethyl sulfoxide) and subsequently analysed by ultraviolet visible near infrared spectroscopy and electron paramagnetic resonance followed by chemometric analysis. The results obtained show that, dimethyl sulfoxide was the most appropriate for berries functional components isolation, and among the studied berries, Aronia exhibited the highest contents of phenolics. Besides that, varieties of Aronia melanocarpa Viking and of Amelanchier lamarckii Ballerina were selected as the cultivars with high contents of functional components. Satisfactory differentiation of berries was achieved according to extraction solvent, fruit type, variety and production years. The results obtained reveal that, phytochemical composition of Aronia and Saskatoon berries may vary depending on genotypic factors, climate, growing conditions as well as on extraction method used for their assessment. Sample processing, genotypic and seasonal factors had significant effect on the concentration of naturally occurring compounds in berries.

中文翻译：

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不同因素对野樱莓和萨斯卡通浆果功能成分浓度的影响

评价了不同因素对两个品种的野樱莓和三个品种的萨斯卡通浆果中酚类物质、花青素、抗氧化剂和颜色参数的影响。使用三种不同的溶剂（水、50% 乙醇 (v/v) 和二甲亚砜）通过动态溶剂萃取提取浆果，然后通过紫外可见近红外光谱和电子顺磁共振进行分析，然后进行化学计量分析。所得结果表明，二甲基亚砜最适合浆果功能成分的分离，在所研究的浆果中，山梨果酚类物质的含量最高。此外，还选择了黑果野樱莓和芭蕾舞姬两个品种作为功能成分含量高的品种。根据提取溶剂、果实类型、品种和生产年份，对浆果进行了令人满意的区分。获得的结果表明，野樱莓和萨斯卡通浆果的植物化学成分可能因基因型因素、气候、生长条件以及用于评估的提取方法而异。样品处理、基因型和季节性因素对浆果中天然化合物的浓度有显着影响。