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All Journal JFA (Jurnal Fisika dan Aplikasinya)
Sriati Wahyudi Sriati Wahyudi
Department of Biotechnology, Faculty of Graduate School, Universitas Padjadjaran, Bandung
Physics

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Analysis of Glucomannan Molecule in Porang (Ammorphophallus Muelleri Blume) Flour using Nuclear Magnetic Resonance: Ivan Rizoputra, Sriati Wahyudi, Niniek Fajar Puspita, Risdiana Risdiana, Darminto Darminto Ivan Rizoputra Ivan Rizoputra; Sriati Wahyudi Sriati Wahyudi; Niniek Fajar Puspita Niniek Fajar Puspita; Risdiana Risdiana; Darminto Darminto
Jurnal Fisika dan Aplikasinya Vol 20 No 3 (2024): October 2024 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v20i3.21753

Abstract

The porang tuber (Ammorphophallus Muelleri Blume) is a bulb plant belonging to the Araceae family, which contains the polysaccharide substance of glucomannan. In this work, the porang flour has been purified from tubers by a centrifugation method. To study the content of compounds and types of molecules that make up glucomannan, characterization was carried out using 1H and 13C nuclear magnetic resonance (NMR). The analysis on chemical shift data from both NMR spectra can be concluded that glucomannan in porang is more dominantly constructed by glucose molecules rather than mannose. From these results, it is also known that the toxic compound Ca-oxalate which is part of the porang compound has been reduced during the centrifugation process.
Co-Authors Darminto Darminto Ivan Rizoputra Ivan Rizoputra Niniek Fajar Puspita Niniek Fajar Puspita Risdiana Risdiana