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Evaluation of antioxidant potential of mango after formalin treatment during preservation

机译：福尔马林保存后芒果抗氧化能力的评价。

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Free radicals are producing continuously inside the living cell as a part of normal metabolic process and responsible for the generation of various types of disease such as cancer, cardiovascular disease, neurological disease, pulmonary disease, rheumatoid arthritis, nephropathy, ocular disease etc. Antioxidants are continuously counterbalancing the oxidative radical by breakdown or neutralizing the free radical. Various fruits and plant parts possesses antioxidant activity for example our studied sample mango has antioxidant property but when it treated with formalin it markedly reduces antioxidant potential of it. In phosphomolybdate assay it is found that normal mango peel contains more antioxidant activity than mango flesh, but treatment with formalin, antioxidant potential decreases in both peels and fleshes. Similar result was found in iron reducing power assay and DPPH radical scavenging assay where it is found that normal mango peel has almost similar scavenging property as compared to standard BHT. Normal mango peel (NP) exhibits very high radical scavenging activity (IC 50 is 4.2). At 100 μg/ml radical scavenging activity of normal mango peel (NP) is 93.79%, but formalin treated mango peel (FP) at same concentration possess scavenging property 76.36%, where as standard antioxidant scavenges about 93.95%. Scavenging power of normal mango flesh (NF) is 39.57% and in formalin treated mango flesh (FF) scavenging potential is only 7.12% at 100 μg/ml.
机译：自由基是正常代谢过程的一部分，在活细胞内不断产生自由基，并导致各种疾病的产生，例如癌症，心血管疾病，神经系统疾病，肺部疾病，类风湿性关节炎，肾病，眼病等。抗氧化剂是通过分解或中和自由基来连续平衡氧化自由基。各种水果和植物的各个部分具有抗氧化作用，例如我们研究的样品芒果具有抗氧化作用，但是当用福尔马林处理后，芒果的抗氧化能力明显降低。在磷钼酸盐测定中，发现正常的芒果果皮比芒果果肉具有更高的抗氧化活性，但是用福尔马林处理后，果皮和果肉中的抗氧化能力均下降。在铁还原能力测定和DPPH自由基清除测定中发现了相似的结果，发现正常的芒果皮与标准BHT相比具有几乎相似的清除特性。普通芒果皮（NP）表现出很高的自由基清除活性（IC 50为4.2）。在100μg/ ml时，正常芒果皮（NP）的自由基清除活性为93.79％，但在相同浓度下经福尔马林处理的芒果皮（FP）的清除性能为76.36％，而标准抗氧化剂的清除性能约为93.95％。正常芒果果肉（NF）的清除能力为39.57％，而在福尔马林处理过的芒果果肉（FF）中，100μg/ ml的清除能力仅为7.12％。

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