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A comprehensive profiling of phenolic compounds and antioxidant activities of 24 varieties of red raspberry cultivated in Northeast China
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DOI：10.1111/1750-3841.17623.png)
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Abstract
En 中文
Red raspberries, valued for their nutrients and bioactive compounds, have broad uses in processing and healthy products. However, limited comprehensive research focused on the comparison of phenolic compounds of red raspberry, especially species cultivated in Northeast China, has been reported. This study aimed to conduct a thorough investigation of 24 red raspberry varieties in Northeast China for the first time, evaluating their phenolic compounds and antioxidant capacities. The results showed that 'DNS1' had the highest total phenolic content (TPC), 'Willamette' had the highest total flavonoid content (TFC), and 'Boyne' had the highest total anthocyanin content (TAC). Phenolic compounds in red raspberries were predominantly found in esterified form, while glycosylated phenolics should not be overlooked. Chlorogenic acid, cryptochlorogenic acid, ellagic acid, and arbutin were the main phenolic compounds, and the distribution of their contents varied between varieties. The antioxidant activity in the red raspberry had a close association with the content of phenolic compounds. Principal component analysis (PCA) showed that phenolic compounds and antioxidant activities were higher in samples from 'DNS1', 'Boyne', 'Beijing10', 'DNS5', and 'Willamette' varieties. These varieties should be given priority in breeding programs that aim to boost the utility and bioactive profile of red raspberries. Practical Application Red raspberry is becoming a desirable commercially grown fruit species and is viewed as a new functional food. In this context, this research offers strong support for confirming the quality of 24 varieties of red raspberry and plays a critical role in the food industry. It also indicates the potential sources of superior varieties of red raspberry, which are advantageous for growers and consumers in search of high-quality red raspberry varieties.
Keywords:
antioxidant activities
phenolic compounds
red raspberry
varieties
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