Urbizu-González Ana Lucía, Castillo-Ruiz Octelina, Martínez-Ávila Guillermo Cristian Guadalupe, Torres-Castillo Jorge Ariel
Universidad Autónoma de Tamaulipas, Instituto de Ecología Aplicada, División del Golfo 356, Col. Libertad, 87019, Ciudad Victoria, Tamaulipas, Mexico.
Universidad Autónoma de Tamaulipas, Unidad Académica Multidisciplinaria Reynosa Aztlán, Calle 16 y Lago de Chápala s/n Col. Aztlán, C.P. 88740, Reynosa, Tamaulipas, Mexico.
Asian Pac J Trop Med. 2017 Feb;10(2):121-125. doi: 10.1016/j.apjtm.2017.01.013. Epub 2017 Jan 20.
To evaluate differences in yield and composition of the essential oil and antioxidant contents in Turnera diffusa plants from localities in central region of Tamaulipas.
Samples were collected in Tamaulipas, Mexico in the arid zone. Essential oil was obtained through steam distillation and analyzed using GC-MS. Polyphenol contents, antioxidant activities using ABTS and ferric reducing antioxidant power (FRAP) methods also were evaluated.
A total of 21 compounds were identified in the essential oils; nevertheless, only Eucalyptol, 1,4-Methanocycloocta[d]pyridazine, 1,4,4a,5,6,9,10,10a-octahydro-11,11-dimethyl-, (1à,4à,4aà,10aà) y Ethanone, 1-(1,3-dimethyl-3-cyclohexen-1-yl) were detected in the three sites. Highest contents were registered in the sample from Padrón y Juárez with phenolic content of 33.85 mg GAE/g of dry material and antioxidant activities with ABTS 72.32% and with FRAP 21.33 mg GAE/g of dry material. Statistical differences were observed in essential oil, phenolics and antioxidants contents between populations.
Results suggest that climatic differences and origin influence the phytochemicals in the medicinal plant Turnera diffusa, and thus, it is worth to consider such effects for industrial and medicinal purposes.
评估来自塔毛利帕斯州中部地区不同地点的白花蛇舌草植物中精油产量、成分及抗氧化剂含量的差异。
在墨西哥塔毛利帕斯州的干旱地区采集样本。通过水蒸气蒸馏法获得精油，并采用气相色谱 - 质谱联用仪进行分析。还评估了多酚含量、使用ABTS法和铁还原抗氧化能力（FRAP）法测定的抗氧化活性。
在精油中总共鉴定出21种化合物；然而，仅在三个地点检测到桉叶油素、1,4 - 亚甲基环辛并[d]哒嗪、1,4,4a,5,6,9,10,10a - 八氢 - 11,11 - 二甲基 - ，(1α,4α,4aα,10aα)和1 - (1,3 - 二甲基 - 3 - 环己烯 - 1 - 基)乙酮。来自帕德龙和华雷斯的样本中含量最高，酚类含量为33.85毫克没食子酸当量/克干物质，ABTS抗氧化活性为72.32%，FRAP抗氧化活性为21.33毫克没食子酸当量/克干物质。在不同种群之间观察到精油、酚类和抗氧化剂含量存在统计学差异。
结果表明，气候差异和产地影响药用植物白花蛇舌草中的植物化学物质，因此，出于工业和药用目的考虑这些影响是值得的。
