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      Metabolite Profiling of Temulawak Rhizome Using Gas Chromatography-Mass Spectroscopy

      Pemrofilan Rimpang Temulawak Menggunakan Kromatografi Gas-Spektroskopi Massa

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      Date
      2012
      Author
      Septiani, Rizki
      Heryanto, Rudi
      Darusman, Latifah Kosim
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      Abstract
      The aim of this study was to identify metabolites in temulawak rhizome and to discriminate the spread of temulawak rhizome from 5 central production areas in Java: Bogor, Karanganyar, Sukabumi, Ngawi, and Wonogiri. The samples were extracted by SPME (solid phase micro extraction) then were analyzed using GC-MS (gas chromatography mass spectroscopy). Compounds that have been identified and confirmed to Bogor, Karanganyar, Sukabumi, Ngawi, and Wonogiri were 36, 40, 44, 44, 47 components, respectively, and the dominant compounds were α-Cedrene (18-21%), α-Curcumene (15-19%), Xanthorrhizol (6-9%), and Germacrone (5-7%). The metabolites that suspected as markers were α-Cedrene and β–Sesquiphellandrene. Antioxidant activity assay using DPPH (2,2-diphenyl-1-picrylhydrazil) method to ethyl acetate extract of temulawak rhizome fell into 4 groups, while the discrimination from different geographical origins using PCA (principal component analysis) fell into 3 groups. Therefore, metabolite composition of the temulawak rhizome could not be related with its antioxidant activity.
       
      Penelitian ini bertujuan mengidentifikasi metabolit pada rimpang temulawak dan mendiskriminasi penyebaran rimpang temulawak dari 5 daerah sentral produksi di Jawa: Bogor, Karanganyar, Sukabumi, Ngawi, dan Wonogiri. Sampel diekstraksi dengan SPME (ekstraksi mikro fase padat) kemudian dianalisis menggunakan GC-MS (kromatografi gas-spektroskopi massa). Senyawa yang berhasil diidentifikasi dan dikonfirmasi untuk daerah Bogor, Karanganyar, Sukabumi, Ngawi, dan Wonogiri berturut-turut sebanyak 36, 40, 44, 44, 47 senyawa dengan komponen dominannya adalah α-Cedrene (18-21%), α-Curcumene (15-19%), Xanthorrhizol (6-9%), dan Germacrone (5-7%). Metabolit yang diduga sebagai penanda adalah α-Cedrene dan β–Sesquiphellandrene. Pengujian aktivitas antioksidan dengan metode DPPH (2,2-diphenyl-1-picrylhydrazil) terhadap ekstrak etil asetat rimpang temulawak membagi sampel menjadi 4 kelompok, sedangkan diskriminasi rimpang temulawak dari asal geografis berbeda menggunakan PCA (analisis komponen utama) membagi sampel menjadi 3 kelompok. Oleh karena itu, komposisi metabolit rimpang temulawak tidak dapat dikaitkan dengan aktivitas antioksidannya.
       
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      http://repository.ipb.ac.id/handle/123456789/60681
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      • UT - Chemistry [2295]

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