不同水果的总酚含量、抗坏血酸及抗氧化潜力

N. Akhtar, N. Ahmad, K. Hussain, M. Sarfraz, Muhammad Abubakar Siddique, W. Ahmad
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引用次数: 1

摘要

该试验于2017-18年在巴基斯坦费萨拉巴德Ayub农业研究所生物化学处进行,以评估芒果、葡萄、香蕉、番石榴、桑葚、草莓、枇杷、甜瓜、杏和蝴蝶花的总酚和抗氧化剂潜力。水果样品从巴基斯坦费萨拉巴德市场获得,清洗,室温干燥,提取果汁/果肉。果汁保存在4°C,以便进一步分析。对果汁样品进行维生素C、pH、TSS、总酚类物质和总抗氧化能力的测定。结果表明,10种水果中维生素C含量最高的是芒果(24.33 mg/100 mL),其次是仙人掌(19.74 mg/100 mL)和葡萄(11.25 mg/100 mL),次之的是甜瓜(3.3 mg/100 mL)和枇杷(3.4 mg/100 mL)。其他水果的维生素C含量介于两者之间。除甜瓜(5.82)和番石榴(5.38)的酸性较弱外,其他水果的鲜汁pH值均为高酸性。蝴蝶花、桑树和芒果的TSS比例较高(分别为13.8%、13.5和13.9%),甜瓜的TSS比例较低(5.6%)。葡萄(91.9%)和芒果(91.2%)的抗氧化能力(DPPH还原%)与甜瓜(90.9%)相当,而桑葚(51.6%)的抗氧化能力较低。葡萄中总酚含量最高(1266.4µg GAE/mL),而甜瓜中酚含量最低(4.1µg GAE/mL)。因此,葡萄比其他水果更有营养,更健康。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Total Phenolic Contents, Ascorbic Acid and Antioxidant Potential of Different Fruits
The experiment was conducted at Biochemistry Section, Ayub Agricultural Research Institute, Faisalabad Pakistan, during the year 2017-18 to assess the total phenols and antioxidants potential of mango, grapes, banana, guava, mulberry, strawberry, loquat, melon, apricot and phalsa. Fruits samples were obtained from the market of Faisalabad Pakistan, washed, dry at room temperature, extracted their juice/pulp. The juice was stored at 4 °C for further analysis. Juice samples were processed for Vitamin- C, pH, TSS, total phenolics and total antioxidant capacity. The results showed that among all the ten fruits vitamin C was higher in mango (24.33 mg/100 mL) followed by phalsa (19.74 mg/100 mL) and Grapes (11.25 mg/100 mL), whereas lower value was observed in melon (3.3 mg/100 mL) and loquat (3.4 mg/100 mL). Vitamin C for other fruits lies between these. Highly acidic pH of fresh juices of all the fruits was observed except in melon (5.82) and guava (5.38) which is less acidic. Percentage of TSS was higher in phalsa, mulberry and mangoes (13.8, 13.5 and 13.9% respectively) and lesser in melon (5.6%). Antioxidant capacity (% DPPH reduction) was found higher in grapes (91.9%) and mango (91.2%) which was statistically at par with melon (90.9%), while lesser value was observed in mulberry (51.6%). Total phenolics were significantly higher in grapes (1266.4 µg GAE/mL), whereas minimum phenolic contents were found in melon (4.1 µg GAE/mL). Therefore, it was concluded that grapes are more nutritious and healthy fruit than other.  
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