Abstract The goji-berry (Lycium barbarum) is an oval-shaped orange-red fruit with a slightly sweet flavor. This berry has a high antioxidant potential and presents interesting nutritional and therapeutic properties. Irradiation is a safe method that has long used to reduce the microbiological contamination of dried and dehydrated food products. This study aimed to evaluate the irradiation effects on the bioactive compounds of goji berries by irradiating samples with an electron beam at doses of 2.5, 5.0, 7.5, and 10.0 kGy. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity and oxygen radical absorbance capacity (ORAC) were assessed by analyzing the hydroalcoholic extracts. The total phenolic compounds determined by the Folin-Ciocalteu assay. Doses up to 10.0 kGy did not significantly affect the antioxidant activity in the DPPH assay, and electron beam irradiation improved the total antioxidant activity of the samples in ORAC, as well as a total flavonoid and phenolics assays.

中文翻译：

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电子束辐照对枸杞生物活性成分的影响

摘要 枸杞（Lycium barbarum）是一种椭圆形的橙红色果实，味微甜。这种浆果具有很高的抗氧化潜力，并具有有趣的营养和治疗特性。辐照是一种安全的方法，长期以来一直用于减少干燥和脱水食品的微生物污染。本研究旨在通过用 2.5、5.0、7.5 和 10.0 kGy 剂量的电子束照射样品来评估对枸杞生物活性化合物的照射效果。通过分析水醇提取物来评估 2,2-二苯基-1-苦基肼 (DPPH) 清除活性和氧自由基吸收能力 (ORAC)。Folin-Ciocalteu 测定法测定的总酚类化合物。高达 10.0 kGy 的剂量不会显着影响 DPPH 测定中的抗氧化活性，