Jena Sudipta, Ray Asit, Banerjee Anwesha, Sahoo Ambika, Nasim Noohi, Sahoo Suprava, Kar Basudeba, Patnaik Jeetendranath, Panda Pratap Chandra, Nayak Sanghamitra
a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
b Department of Anaesthesia , IMS and SUM Hospital, Siksha 'O' Anusandhan University , Bhubaneswar , India.
Nat Prod Res. 2017 Sep;31(18):2188-2191. doi: 10.1080/14786419.2017.1278600. Epub 2017 Jan 9.
The essential oil extracted from rhizome and leaf of Curcuma angustifolia Roxb. (Zingiberaceae) was characterised by gas chromatography-mass spectrometry (GC-MS). The GC-MS analysis revealed the presence of 32 and 35 identified constituents, comprising 92.6% and 92% of total leaf and rhizome oil, respectively. Curzerenone (33.2%), 14-hydroxy-δ-cadinene (18.6%) and γ-eudesmol acetate (7.3%) were the main components in leaf oil. In rhizome oil, curzerenone (72.6%), camphor (3.3%) and germacrone (3.3%) were found to be the major constituents. Antioxidant capacities of oil were assessed by various methods, 2, 2-diphenyl-1-picrylhydrazyl (DPPH), 2, 2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and reducing power ability (RPA). Based on the results, the leaf oil showed more antioxidant potential as compared to rhizome oil and reference standards (ascorbic acid and butylated hydroxytoluene (BHT)). Thus, the leaf essential oil of C. angustifolia can be used as an alternative source of natural antioxidant.
采用气相色谱 - 质谱联用（GC - MS）技术对狭叶姜黄（姜科）根茎和叶片中提取的精油进行了表征。GC - MS分析显示，分别鉴定出32种和35种成分，占叶片和根茎精油总量的92.6%和92%。叶片精油的主要成分是莪术二酮（33.2%）、14 - 羟基 - δ - 杜松烯（18.6%）和γ - 桉叶醇乙酸酯（7.3%）。在根茎精油中，莪术二酮（72.6%）、樟脑（3.3%）和吉马酮（3.3%）是主要成分。通过多种方法评估了精油的抗氧化能力，包括2,2 - 二苯基 - 1 - 苦基肼（DPPH）、2,2 - 联氮 - 双 -（3 - 乙基苯并噻唑啉 - 6 - 磺酸）（ABTS）和还原能力（RPA）。结果表明，与根茎精油及参考标准品（抗坏血酸和丁基化羟基甲苯（BHT））相比，叶片精油具有更强的抗氧化潜力。因此，狭叶姜黄叶精油可作为天然抗氧化剂的替代来源。
