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Aspiyanto, -
Research Center for Chemistry – Indonesian Institute of Sciences, Kawasan PUSPIPTEK, Serpong - 15314, South Tangerang, Banten, Indonesia.
Computer Science & IT

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AKTIVITAS INHIBISI ?-GLUKOSIDASE GRANULAR TEH HIJAU (Camellia sinensis) GRADE Arraca Yabukita HASIL DIAFILTRASI MENGGUNAKAN MEMBRAN NANOFILTRASI Widiyarti, Galuh; Susilowati, Agustine; Aspiyanto, -
Teknologi Indonesia Vol 35, No 1 (2012)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v35i1.176

Abstract

The activity of ?-glucosidase inhibition test of local granular green tea (Camellia sinensis) grade of Arraca Yabukita has been done. Granular green tea obtained by vacuum drying of the concentrate of the diafiltration process using nanofiltration membrane (DF-NF) at 50C for 0-80 hours. Every 8 hours of drying time, the analysis of water content, total polyphenols, and ?-glucosidase inhibitory activity of granular green tea were conducted. The?-glucosidase inhibitory activity test was performed by by Kim Yong-Mu method and compared to quercetin as standard. The results showed that, the drying process increases the ?-glucosidase inhibitory activity of granular green tea. At the optimum drying time 72 hours, the ?-glucosidase inhibitory activity of granular green tea is about 18 times higher than quercetin.
Co-Authors Agustine Susilowati Galuh Widiyarti