Penetapan Kadar Kofein Daun Kopi Kawa ( Coffea Robusta ,Lind )
DOI:
https://doi.org/10.52689/higea.v5i2.85Keywords:
Coffein, Coffea robusta, Spectrometri UV –VisAbstract
Research has been done on the determination of caffeine that leaves Kawa Coffee ( Coffea robusta Linden ex DE Wildem ) by using Soxlhetation method. Coffein from extraction purified by preparative TLC mobile phase solution chloroform : methanol ( 9:1 ).The constration of pure Coffein from preparative TLC has been determinedby using Spectrophotometer Uv-Vis T -70 .The result Coffea Kawa leaves (Coffea robusta Limden ex De Wildem ) is 0.7 % w/wReferences
Abraham.(2010).Isolasi kofein dari daun teh. Laboratorium Pengembangan Unit Kimia, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Haluoleo. Kendari
Armita,(1980). Penentuan kadar kofein pada pucuk, daun tua dan ranting tanaman Teh (camellia Sanensis .Linn). Skripsi .Padang , UniversitasAndalas
Ashraful Islam , SM , Shultana, S, Muhammad Shahdaat Bin Sayeed and Irin ( 2012 ).UV-Spectrophotometric and RP-HPLC Methods for the Simultaneus Estimation of Acetaminophen and Caffein : Validation Comparision and Application for Marketed Tablet analisis.Ashraful, et al. Int J Pharm 2012; 2(1): 39-45
Depertemen kesehatan Republik Indonesia-.(2000). Parameter Standar Umum Ekstrak Tumbuhan Obat. Edisi I. Jakarta. Direktorat jendral pengawasan Obat dan Makanan , Direktorat Pengawas Obat Tradisional
Fang,Y,F,Yan ,X, Yue R,L Xin,Q,Z, Devajit ,B. andJian ,L,L,( 2011 ).Isolation and characterization of high caffeine – tolerantbacterium strains from the soilof tea garden. African Journal of Microbiology Research Vol. 5(16), pp.22782286
Fitri, N,S. (2009).Pengaruh berat waktu Penyeduhan terhadap kadar kafein daun teh. Skripsi. Medan , Universitas Sumatra Utara
Khursheed,T, Ansari, M,Y,K, Shahab ,D,( 2009 ).Studies on the effect of caffeine on growth and yield parameters in Helianthus annuus L. variety ModernBiology and Medicine, 1 (2): 56-60, 2009
Nawrot, P , Jordan ,S, Eastwood, J , Rostein ,A,Hugenholtz and. Feeley , M, ( 2003 ).Effects of caffeine on human.Food Additives and Contaminants, 2003, Vol. 20, No. 1, 1–30
Wanyika .H.N, Gatebe,E.G , Ngumba, E,K. dan Maritim, C.W,(2010).Determination ofcaffeinecontent ofteaandinstantcoffeebrand are foundin the marketKenya.African Journal of Food ScienceVol. 4 (6), pp 353-358
Widya , R . (2011). Analisa Kofein Pada Kopi Bubuk Instan yang Beredar dipasar secara Spektrofotometer Ultraviolet. Skripsi. Padang: Sekolah Tinggi Ilmu Farmasi Indonesia
