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Valeriana dioscoridis aerial parts' extracts - A new source of phytochemicals with antioxidant and enzyme inhibitory activities
Industrial Crops and Products ( IF 5.6 ) Pub Date : 2020-02-29 , DOI: 10.1016/j.indcrop.2020.112273
Cengiz Sarikurkcu , Magdalena Jeszka-Skowron , Mehmet Sabih Ozer

Valeriana root extracts are used in herbal medicine for treating sleep disorders. There is a lack of information of phytochemical composition of Valeriana dioscoridis aerial parts’ extracts. The aim of the study was to measure antioxidant activity, determine the phenolic compounds from different groups such as phenolic acids and polyphenolic compounds: verbascoside or eriodictyol, and enzyme inhibitory activities in ethyl acetate, methanol and water extracts. The methanol extract showed the highest antioxidant activity almost in all assays (excluding ferrous ion chelating activity). Moreover, the concentrations of the determined phytochemicals mainly chlorogenic acid content (21.4 ± 0.7 mg/g), hesperidin (2.10 ± 0.05 mg/g) and protocatechuic acid (0.94 ± 0.02 mg/g) were the greatest for this extract. It was also the richest in all determined compounds – 21 phytochemicals were identified and water extract was the second most abundant in analytes (20 phytochemicals). The predominant compounds in water extract were the following: chlorogenic acid (20.3 ± 0.12 mg/g), protocatechuic acid (0.83 ± 0.02 mg/g) and caffeic acid (0.72 ± 0.01 mg/g). Protocatechuic acid was prevailing in ethyl acetate extract (0.59 ± 0.01 mg/g). In addition, in this extract the highest inhibitory activity of α-amylase was found and the highest amount of verbascoside was determined in comparison to other extracts (0.53 ± 0.01 mg/g). The tyrosinase inhibitory effect especially of methanol extract was also shown. Pearson correlation confirmed that the strong biological activity of methanol extract from V. dioscoridis resulted mainly from its high content of chlorogenic acid.



中文翻译:

缬草地上部分提取物-具有抗氧化剂和酶抑制活性的植物化学物质的新来源

草根提取物用于治疗睡眠障碍的草药。缺乏缬草缬草的植物化学组成信息空中零件的摘录。该研究的目的是测量抗氧化剂的活性,确定不同组中的酚类化合物,例如酚酸和多酚类化合物:马齿co甙或雌三醇,以及乙酸乙酯,甲醇和水提取物中的酶抑制活性。甲醇提取物几乎在所有测定中均显示出最高的抗氧化活性(不包括亚铁离子螯合活性)。此外,确定的植物化学物质的浓度主要为绿原酸含量(21.4±0.7 mg / g),橙皮苷(2.10±0.05 mg / g)和原儿茶酸(0.94±0.02 mg / g)最大。在所有确定的化合物中,它也是最丰富的–鉴定出21种植物化学物质,水提取物在分析物中的含量第二高(20种植物化学物质)。水提取物中的主要化合物如下:绿原酸(20.3±0.12 mg / g),原儿茶酸(0.83±0.02 mg / g)和咖啡酸(0.72±0.01 mg / g)。原儿茶酸在乙酸乙酯提取物中占主导地位(0.59±0.01 mg / g)。此外,与其他提取物相比,在该提取物中发现了最高的α-淀粉酶抑制活性,并确定了最高的马齿bas苷含量(0.53±0.01 mg / g)。还显示出酪氨酸酶抑制作用,尤其是甲醇提取物。皮尔逊相关性证实,甲醇提取物具有很强的生物活性。在此提取物中,与其他提取物相比,发现了最高的α-淀粉酶抑制活性,并确定了最高的马齿co苷含量(0.53±0.01 mg / g)。还显示出酪氨酸酶抑制作用,尤其是甲醇提取物。皮尔逊相关性证实,甲醇提取物具有很强的生物活性。在该提取物中,与其他提取物相比,发现了最高的α-淀粉酶抑制活性,并确定了最高的马齿bas苷含量(0.53±0.01 mg / g)。还显示出酪氨酸酶抑制作用,尤其是甲醇提取物。皮尔逊相关性证实,甲醇提取物具有很强的生物活性。盘尾弧菌主要是由于其绿原酸含量较高。

更新日期:2020-03-02
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