A.M. Al-Zabt, H. J. Hamad, M. S. Pak‐Dek, N. Ramli, Y. Rukayadi
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引用次数: 0
摘要
众所周知，Jambu bol [Syzygium malaccense (L.) Merr. and Perry] 被用于民间医药，有报告证明这种植物的每个部分都具有生物活性。本研究旨在确定 S. malaccense L. 叶提取物的抗氧化活性。本研究采用的方法包括总酚含量（TPC）测定法、2,2-二苯基-1-苦基肼（DPPH）测定法、2,2'-偶氮-双（3-乙基苯并噻唑啉-6-磺酸）（ABTS-）自由基清除活性测定法和铁还原抗氧化力（FRAP）测定法。结果表明，提取物中 TPC 的含量为 44.10±0.06 mg GAE/g。DPPH和ABTS-的IC50清除活性分别为0.0334 mg抗坏血酸E/g和0.1352 mg TE/g，抗氧化还原力为1013.50±0.07mM Fe2+ /g。总之，S. malaccense L. 叶提取物具有抗氧化活性，该提取物具有作为天然抗氧化剂用于食品中的潜力。
Antioxidant activity of jambu bol [Syzygium malaccense (L.) Merr. and Perry]
leaf extract
Jambu bol [Syzygium malaccense (L.) Merr. and Perry] is well known to be used in folk
medicine and reports are proving the biological activity of each part of this plant. This
study aimed to determine the antioxidant activity of S. malaccense L. leaf extract. The
methods used in this study were total phenolic content (TPC) assay, 2,2-Diphenyl-1-
picrylhydrazyl (DPPH) assay, 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)
(ABTS•) radical scavenging activity assay and ferric reducing antioxidant power (FRAP)
assay. The results showed that the extract contained TPC of 44.10±0.06 mg GAE/g. The
IC50 scavenging activities of DPPH and ABTS• were 0.0334 mg of Ascorbic acid E/g and
0.1352 mg of TE/g, respectively, while the antioxidant reducing power was 1013.50±0.07
mM Fe2+ /
g. In conclusion, S. malaccense L. leaf extract was found to possess antioxidant
activity, and this extract has potential to be developed to be used in food as a natural
antioxidant agent.
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