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Effects of atmospheric pressure plasma jet on the physicochemical, functional, and antioxidant properties of flaxseed protein
Journal of Food Science ( IF 3.2 ) Pub Date : 2020-06-11 , DOI: 10.1111/1750-3841.15184
Xiao Yu 1 , Shasha Huang 1 , Chengzhen Nie 1 , Qianchun Deng 2 , Yafei Zhai 1 , Ruiling Shen 1
Affiliation  

The aim of this study was to explore the effect of atmospheric pressure plasma jet (APPJ) on the physicochemical, functional, and antioxidant properties of flaxseed protein following APPJ treatment (0 to 240 s). The results showed that the pH value continuously dropped with the minimum value of 3.45 ± 0.15 after 240 s of APPJ treatment (-61.7%, P < 0.05). The relative protein solubility significantly declined after 15 s of APPJ treatment (-43.1%, P < 0.05), which was accompanied by the evident increase in mean particle size of flaxseed protein in aqueous solution (+157%, P < 0.05). Moreover, the surface hydrophobicity and contents of disulfide bonds gradually raised when the APPJ exposure time extended from 30 to 240 s. Notably, the foaming, emulsifying, and in vitro antioxidant properties of flaxseed protein were significantly improved following short time of APPJ treatment (5 to 15 s), which was paralleled with the changes of spatial conformation, mild protein oxidation, as well as the release of phenolic acids and flavonoids from naturally occurring protein-phenolic complex. Our findings elucidated that APPJ may be considered as an effective strategy to improve the functionality and antioxidant activities of flaxseed protein. PRACTICAL APPLICATION: We had evaluated the effect of APPJ treatment on the physicochemical, functional, and antioxidant properties of flaxseed protein, which was conducive to tailor flaxseed protein with the optimal techno-functionality and antioxidant activities as a potential nano-delivery vehicle.

中文翻译:

大气压等离子体射流对亚麻籽蛋白理化、功能和抗氧化特性的影响

本研究的目的是探讨大气压等离子体射流 (APPJ) 对 APPJ 处理(0 至 240 秒)后亚麻籽蛋白的理化、功能和抗氧化特性的影响。结果表明,APPJ处理240 s后pH值持续下降,最小值为3.45±0.15(-61.7%,P < 0.05)。APPJ处理15 s后相对蛋白质溶解度显着下降(-43.1%,P < 0.05),同时亚麻籽蛋白在水溶液中的平均粒径明显增加(+157%,P < 0.05)。此外,当 APPJ 暴露时间从 30 秒延长至 240 秒时,表面疏水性和二硫键含量逐渐升高。值得注意的是,起泡、乳化、APPJ 处理短时间(5 至 15 秒)后,亚麻籽蛋白的体外抗氧化性能显着提高,这与空间构象的变化、蛋白质轻度氧化以及天然酚酸和黄酮类物质的释放相平行。产生蛋白质-酚复合物。我们的研究结果阐明了 APPJ 可能被认为是改善亚麻籽蛋白功能和抗氧化活性的有效策略。实际应用:我们评估了 APPJ 处理对亚麻籽蛋白理化、功能和抗氧化特性的影响,这有助于定制具有最佳技术功能和抗氧化活性的亚麻籽蛋白作为潜在的纳米递送载体。这与空间构象的变化、温和的蛋白质氧化以及天然存在的蛋白质-酚复合物中酚酸和黄酮类化合物的释放同时发生。我们的研究结果阐明了 APPJ 可能被认为是改善亚麻籽蛋白功能和抗氧化活性的有效策略。实际应用:我们评估了 APPJ 处理对亚麻籽蛋白理化、功能和抗氧化特性的影响,这有助于定制具有最佳技术功能和抗氧化活性的亚麻籽蛋白作为潜在的纳米递送载体。这与空间构象的变化、温和的蛋白质氧化以及天然存在的蛋白质-酚复合物中酚酸和黄酮类化合物的释放同时发生。我们的研究结果阐明了 APPJ 可能被认为是改善亚麻籽蛋白功能和抗氧化活性的有效策略。实际应用:我们评估了 APPJ 处理对亚麻籽蛋白理化、功能和抗氧化特性的影响,这有助于定制具有最佳技术功能和抗氧化活性的亚麻籽蛋白作为潜在的纳米递送载体。我们的研究结果阐明了 APPJ 可能被认为是改善亚麻籽蛋白功能和抗氧化活性的有效策略。实际应用:我们评估了 APPJ 处理对亚麻籽蛋白理化、功能和抗氧化特性的影响,这有助于定制具有最佳技术功能和抗氧化活性的亚麻籽蛋白作为潜在的纳米递送载体。我们的研究结果阐明了 APPJ 可能被认为是改善亚麻籽蛋白功能和抗氧化活性的有效策略。实际应用:我们评估了 APPJ 处理对亚麻籽蛋白理化、功能和抗氧化特性的影响,这有助于定制具有最佳技术功能和抗氧化活性的亚麻籽蛋白作为潜在的纳米递送载体。
更新日期:2020-06-11
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