Isolation and characterization of cellulose from the yellow saba banana blossom (Musa balbisiana Colla)
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Abstract
Abstract. Salama SZ, Firdaus M, Suryanti V. 2023. Isolation and characterization of cellulose from the yellow saba banana blossom (Musa balbisiana Colla). Pros Sem Nas Masy Biodiv Indon 9: 80-85. Indonesia has a high biodiversity of flora, fauna, and microbes. The diversity of flora in Indonesia, including the banana plant, is very abundant. Banana plants have high production value with various species. Yellow kepok banana is often found and preferred by the public because it has a sweet taste with soft fruit flesh. The reddish-purple banana heart has about 10-13 petals; humans can consume these flower layers, but not many people use them. Meanwhile, cellulose has a high chemical component in the heart of the banana, and this abundant polymer is the main component of plant cell walls. The aim of this study was to isolate cellulose from the heart of the yellow kepok banana. Cellulose isolation was carried out through alkalization with NaOH and bleaching with NaOCl. The cellulose obtained was in the form of a white powder. The success of this research was available through FTIR spectroscopy which showed the loss of specific absorption in lignin and hemicellulose at wave numbers 1740 cm-1 (C=O), 1515 cm-1 (C=C) and 1240 cm-1 (C-O). Moreover, the SEM characterization showed a rough and independent fiber surface. Further, TGA characterization showed three high thermal degradations at ?214.3°C, 214-555°C, and >555°C.