The aim of this study was to investigate the quality of defatted walnut kernel derived from oil extraction by Soxhlet method, to walnut genotypes. Antioxidant activity, total phenol and individual phenolic compounds were determined. Total phenolic content ranged from 3791.13–9408.6 mg GAE/100 g and antioxidant activity from 35.03–75.89 mmol Trolox/100 g, depending on the genotypes. Fifteen phenolic compounds were detected. The data provides evidence on high phenolic contents and high antioxidant potential of defatted walnut kernel and can be a basic ingredient in the food industry.

中文翻译：

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不同品种核桃脱脂籽粒的总酚含量，抗氧化能力和个别酚类化合物

这项研究的目的是研究通过索氏提取法从油脂中提取的脱脂核桃仁的品质，以分析核桃的基因型。测定了抗氧化活性，总酚和单个酚类化合物。总酚含量范围为3791.13–9408.6 mg GAE / 100 g，抗氧化活性范围为35.03–75.89 mmol Trolox / 100 g，具体取决于基因型。检测到十五种酚类化合物。数据提供了脱脂核桃仁高酚含量和高抗氧化潜力的证据，并且可以是食品工业中的基本成分。