Essien Emmanuel E, Thomas Paul S, Oriakhi Kelly, Choudhary Mohammad I
Department of Chemistry, University of Uyo, Uyo 520101, Nigeria.
Hussain Ebrahim Jamal Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
Medicines (Basel). 2017 May 10;4(2):29. doi: 10.3390/medicines4020029.
is used in ethno-medicine for the treatment of several ailments and as a traditional food spice. The hydro-distilled leaf, stem, seed, rhizome and pod volatile oils of were subjected to gas chromatography-mass spectrometry (GC-MS) analysis. Free radical scavenging capacity of the volatile oils was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays. Thirty-nine (39) volatile compounds were identified in the oils of , accounting for 85.33 to 96.03% of the total oil composition. The leaf, stem, rhizome and pod volatile oils were dominant in β-pinene (30.94-47.55%), while the seed oil contained a high amount of 1,8-cineole (eucalyptol) (53.44%). The seed oil showed higher radical inhibitory activity in the DPPH assay (IC value, 45.5 µg/mL) and the rhizome oil was the most effective in the FRAP assay. The characterization of the leaf, stem, rhizome and pod volatile oils of is reported for the first time. seed and rhizome oils elicit promise as potential plant resource and warrant further biological exploitation.
在民族医学中用于治疗多种疾病,并作为传统的食用香料。对其水蒸馏得到的叶、茎、种子、根茎和豆荚挥发油进行了气相色谱-质谱(GC-MS)分析。使用2,2-二苯基-1-苦基肼(DPPH)和铁还原抗氧化能力(FRAP)测定法测定挥发油的自由基清除能力。在其挥发油中鉴定出39种挥发性化合物,占总油成分的85.33%至96.03%。叶、茎、根茎和豆荚挥发油中β-蒎烯含量较高(30.94-47.55%),而种子油中1,8-桉叶素(桉油精)含量较高(53.44%)。种子油在DPPH测定中表现出较高的自由基抑制活性(IC值,45.5μg/mL),根茎油在FRAP测定中最有效。首次报道了其叶、茎、根茎和豆荚挥发油的特性。种子油和根茎油有望成为潜在的植物资源,值得进一步进行生物学开发。