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首页> 美国卫生研究院文献>Molecules >Biological Activities and Chemical Constituents of Essential Oils from Piper cubeba Bojer and Piper nigrum L.
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Biological Activities and Chemical Constituents of Essential Oils from Piper cubeba Bojer and Piper nigrum L.

机译：胡椒（Piper cubeba Bojer）和胡椒（Piper nigrum L.）精油的生物活性和化学成分。

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In this study, we evaluated antioxidant, antihyperuricemic, and herbicidal activities of essential oils (EOs) from Piper cubeba Bojer and Piper nigrum L.; two pepper species widely distributed in tropics, and examined their chemical compositions. Dried berries of P. cubeba and P. nigrum were hydro-distilled to yield essential oil (EO) of 1.23 and 1.11% dry weight, respectively. In the antioxidant assay, the radical scavenging capacities of P. cubeba EO against DPPH and ABTS free radicals were 28.69 and 24.13% greater than P. nigrum, respectively. In the antihyperuricemic activity, P. cubeba EO also exhibited stronger inhibitory effects on xanthine oxidase (IC50 = 54.87 µg/mL) than P. nigrum EO (IC50 = 77.11 µg/mL). In the herbicidal activity, P. cubeba EO showed greater inhibition on germination and growth of Bidens pilosa and Echinochloa crus-galli than P. nigrum EO. Besides, P. cubeba EO decreased 15.98–73.00% of photosynthesis pigments of B. pilosa and E. crus-galli, while electrolyte leakages, lipid peroxidations, prolines, phenolics, and flavonoids contents were increased 10.82–80.82% at 1.93 mg/mL dose. Gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS) analyses revealed that P. nigrum and P. cubeba EOs principally possessed complex mixtures of monoterpenes and sesquiterpenes. Terpinen-4-ol (42.41%), α-copaene (20.04%), and γ-elemene (17.68%) were the major components of P. cubeba EO, whereas β-caryophyllene (51.12%) and β-thujene (20.58%) were the dominant components of P. nigrum EO. Findings of this study suggest both P. cubeba and P. nigrum EOs were potential to treat antioxidative stress and antihyperuricemic related diseases. In addition, the EOs of the two plants may be useful to control B. pilosa and E. crus-galli, the two invasive and problematic weeds in agriculture practice.
机译：在这项研究中，我们评估了Piper cubeba Bojer和Piper nigrum L.精油（EOs）的抗氧化，抗高尿酸和除草活性。两种胡椒物种广泛分布于热带地区，并对其化学成分进行了研究。将水松（P. cubeba）和黑松（P. nigrum）的干燥浆果进行水蒸馏，分别得到干重为1.23％和1.11％的精油（EO）。在抗氧化剂测定中，立方体假单胞菌对DPPH和ABTS自由基的自由基清除能力分别比黑僵菌高28.69％和24.13％。在抗高尿酸作用中，立方体黑斑病菌对黄嘌呤氧化酶（IC50 = 54.87 µg / mL）的抑制作用也比黑斑病菌EO（IC50 = 77.11 µg / mL）更强。在除草活性方面，立方体黑斑病菌对黑毛比目鱼和棘壳E的发芽和生长的抑制作用比黑斑病菌对毛发的抑制更大。此外，在1.93 mg / mL的条件下，P。cubeba EO降低了B. pilosa和E. crus-galli光合作用色素的15.98-73.00％，而电解质泄漏，脂质过氧化，脯氨酸，酚类和类黄酮含量增加了10.82-80.82％。剂量。气相色谱-质谱（GC-MS）和液相色谱-电喷雾电离-质谱（LC-ESI-MS）分析显示，黑假单胞菌和 P。立方戊醚主要具有单萜和倍半萜的复杂混合物。萜品醇-4-醇（42.41％），α-可可烯（20.04％）和γ-榄香烯（17.68％）是 P的主要成分。立方米 EO，而β-石竹烯（51.12％）和β-thujene（20.58％）是​​ P的主要成分。黑色 EO。这项研究的结果表明，两者都是 P。立方和 P。黑色素EOs具有治疗抗氧化应激和抗高尿酸血症相关疾病的潜力。另外，两种植物的EO可能对控制B很有帮助。 pilosa 和 E。 crus-galli ，这是农业实践中的两种入侵性和有问题的杂草。

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