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      OPTIMASI EKSTRAKSI POLIFENOL DARI TEH HIJAU SECARA BATCH

      Date
      2008
      Author
      Srijanto, Bambang; Pusat Teknologi Farmasi dan Medika-BPPT
      Purwatiningsih, Purwatiningsih; Dept. Kimia, Fak. MIPA, Institut Pertanian Bogor
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      Abstract
      Green tea is one of tea that has been consumed by people for health care. Re­search have been undertaken related to polyphenol compound extracted from green tea mainly for its used aspect. This research was conducted to optimize the polyphenol extraction process of green tea. The extraction was carried out by using free mineral water solution at 800C. Extraction optimation used response surface methodology (RSM). Box-Behnken design was choosen as an experimental design with three factors and three levels. Independent variable were granule size, solu­tion-raw material ratio and extraction time. Dependent variable was extracted polyphenol concentration; it was determined by Follin Ciocalteau reagent and galat acid as a standard and measured with spectrophotometer at 725 nm. The result showed that granule size, solution-raw material ratio and extraction time affected extracted polyphenol concentration. Extraction with 18,  40 and 60 mesh raw material resulted the maximum extracted polyphenol concentration 20.5%, 19.6%, and 22.25% respectively. Those percentage were obtained on the range of solu­tion-raw material ratio and extra tion time 12-15.5 v/w and 22-30 minutes, 13.5-14.5 v/w and 17-25 minutes, 12.75-16 v/w and 12-20 minutes consecutively. Polyphenol extraction process of green tea with batch method by using minimum raw material 18 mesh, solution-raw material ratio 12-15.54 v/w and extraction time range 22-30 minutes was suggested for practical and reliable result.   Key  word: green tea, extraction optimation, polyphenol, batch process
      URI
      http://ejournal.litbang.depkes.go.id/index.php/toi/article/view/1268
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      • (eJournal 1) Jurnal Tumbuhan Obat Indonesia [163]

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      Copyright © Badan Litbangkes - Kementerian Kesehatan RI
      Jl. Percetakan Negara no.29, Jakarta Pusat 10560, Indonesia
      All rights reserved. 2019
      Contact Us | Send Feedback