Evaluation of Physiological Activity of Traditional Welsh Onion (Allium fistulosum L.)

Hyeon-Jeong Lee, Ae-Jung Kim
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Abstract

Purpose: This study was conducted to evaluate physiological activities, such as antioxidant activity and enzyme activity, of hot water extract of the four parts (flower, leaf and pseudostem, stem, and root) of traditional Welsh onion (Allium fistulosum L.) and then to provide basic data on traditional Welsh onion to support future research.Methods: Four parts of traditional Welsh onion plant were extracted with water heated at 80℃. Antioxidative and enzymatic activities, such as total polyphenol content, total flavonoid content, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2'-azino-bis-3-ethylbenzothiazoline–6-sulfonic acid (ABTS) radical scavenging activity, and the inhibitory activity on α-glucosidase, tyrosinase, and elastase enzymes, were measured.Results: Out of the hot water extract of the different parts, Allium fistulosum flower (AFF) extract had the highest content of antioxidants. In the Allium fistulosum leaf and pseudostem (AFLP), Allium fistulosum stem (AFS), and Allium fistulosum root (AFR) extracts, the total polyphenol content and DPPH radical scavenging activity of the root were high, and AFS had high total flavonoid content and ABTS radical scavenging activity. Regarding enzyme activity, α-glucosidase and elastase inhibitory activities were the highest in AFR, and tyrosinase inhibitory activity was the highest in AFS.Conclusion: We confirmed the physiological activity of the hot water extract of four parts of traditional Welsh onion. Our findings provide basic data for research into traditional Welsh onion, and can facilitate its future development as a functional material.
传统威尔士葱(Allium fistulosum L.)生理活性评价
目的:对传统威尔士洋葱(Allium fistulosum L.)的花、叶、假茎、茎、根四部分热水提取物的抗氧化活性、酶活性等生理活性进行评价,为传统威尔士洋葱的研究提供基础数据,为后续研究提供依据。方法:用80℃加热的水提取传统洋葱的4个部分。测定了其抗氧化和酶活性,如总多酚含量、总黄酮含量、1,1-二苯基-2-苦酰肼(DPPH)自由基清除活性、2,2'-氮基-双-3-乙基苯并噻唑啉- 6-磺酸(ABTS)自由基清除活性,以及对α-葡萄糖苷酶、酪氨酸酶和弹性酶的抑制活性。结果:不同部位热水浸提物中,薤白花浸提物抗氧化剂含量最高。在Allium fistulosum叶片及假茎(AFLP)、Allium fistulosum茎(AFS)和Allium fistulosum根(AFR)提取物中,根的总多酚含量和DPPH自由基清除活性较高,其中AFS具有较高的总黄酮含量和ABTS自由基清除活性。酶活性方面,α-葡萄糖苷酶和弹性酶抑制活性在AFR中最高,酪氨酸酶抑制活性在AFS中最高。结论:我们证实了传统威尔士洋葱四部分热水提取物的生理活性。我们的发现为传统威尔士洋葱的研究提供了基础数据,并可以促进其作为功能材料的未来发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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