ANTIOXIDANT ACTIVITY OF DIFFERENT EXTRACTS OF RED PITAYA (HYLOCEREUS POLYRHIZUS) SEED
ANTIOXIDANT ACTIVITY OF DIFFERENT EXTRACTS OF RED PITAYA (HYLOCEREUS POLYRHIZUS) SEED
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DOI：
10.1080/10942911003592787
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发表时间：
2011-01-01
影响因子：
2.9
通讯作者：
Hamid, Azizah Abdul
中科院分区：
文献类型：
--
作者：
Adnan, Liana;Osman, Azizah;Hamid, Azizah Abdul
采用自由基清除法、亚油酸模型体系和硫氰酸铁（FTC）法测定了红肉火龙果种子乙醇、氯仿和正己烷3种不同提取物的抗氧化活性。乙醇提取物在1000 μ g/mL时对自由基的抑制率为74.76%，而氯仿提取物在亚油酸模型体系和FTC法中的抑制率最高，分别为98.90%和96.34%。总酚和抗坏血酸含量分别为13.56 +/- 2.04和0.36 +/- 0.01 mg/g，而儿茶素是检测到的主要类黄酮。总之，研究表明，极性和非极性化合物都有助于测量的抗氧化活性。
Antioxidant activity of three different extracts (ethanolic, chloroformic, and hexanic) of red flesh pitaya (Hylocereus polyrhizus) seed using free radical scavenging assay, linoleic acid model system, and ferric thiocyanate (FTC) method was determined. Ethanolic extract inhibit 74.76% of free radicals at 1000 mu g/mL, while chloroformic extract gave the highest inhibition using linoleic acid model system (98.90% at 100 mu g/mL) and FTC (96.34%) method. Total phenolic and ascorbic acid contents of the seed were 13.56 +/- 2.04 and 0.36 +/- 0.01 mg/g, respectively, while catechin was the major flavonoid detected. In conclusion, the study showed that both polar and non-polar compounds contribute to the antioxidative activity measured.