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首页> 外文期刊>Journal of King Saud University >A comparative study on phytochemical screening, quantification of phenolic contents and antioxidant properties of different solvent extracts from various parts of Pistacia lentiscus L
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A comparative study on phytochemical screening, quantification of phenolic contents and antioxidant properties of different solvent extracts from various parts of Pistacia lentiscus L

机译： Pistacia lentiscus L的不同部位的植物化学筛选，酚含量定量和抗氧化性能的比较研究

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Within the framework of discovering new antioxidants from natural sources, this work focus on screening of phytochemical constituents, the variation in the total phenolic content and the antioxidant capacities from different parts (fruits, twigs and leaves) ofPistacia lentiscusL., from two different regions of Morocco; Moulay Idriss Zerhoun (MIZ) and Melloussa (MLS) was studied. Thirty extracts were prepared from fruits, twigs, and leaves using solvents of different polarity (hexane, ethyl acetate, methanol, ethanol and water). The tests of antioxidant activities were assessed by employing two different assays the 1,1-diphenyl-2-picrylhydrazyl (DPPH) and phosphomolybdenum (TAC). The screening tests showed the existence of tannins, flavonoids, saponins, sterols, triterpenes, oses, holosides, reducing sugars and mucilages. The quantitative analysis has proved that the whole plant contains a high amount of total phenolic, this wealth increases as and when the polarity of extraction solvents used increases. The whole plant served as a great source of naturally occurring antioxidants, this study provides that the aqueous extract ofPistacia lentiscus(leaves and twigs) from MIZ is a great natural antioxidant compared to quercetin standard. The results show a very significant positive correlation between the TAC and DPPH assays in relation to the amount of total phenolic.
机译：在从自然资源中发现新的抗氧化剂的框架内，这项工作侧重于从黄连木的两个不同区域中提取不同部位（水果，树枝和树叶）的黄连木的植物化学成分，总酚含量变化和抗氧化能力。摩洛哥对Moulay Idriss Zerhoun（MIZ）和Melloussa（MLS）进行了研究。使用不同极性的溶剂（己烷，乙酸乙酯，甲醇，乙醇和水）从水果，树枝和树叶中提取三十种提取物。抗氧化剂活性的测试是通过两种不同的测定方法评估的：1,1-二苯基-2-吡啶并肼基（DPPH）和磷钼（TAC）。筛选试验表明存在单宁，类黄酮，皂角苷，固醇，三萜，糖，糖化物，还原糖和黏液。定量分析证明，整个植物中都含有大量的总酚，随着萃取溶剂极性的增加，这种酚的含量也随之增加。整个植物是天然抗氧化剂的重要来源，这项研究提供了与槲皮素标准品相比，MIZ的黄连木（叶子和细枝）的水提物是一种天然的抗氧化剂。结果显示，TAC和DPPH分析之间相对于总酚含量非常显着正相关。

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