Preliminary Study of Glucose Removal Using Biosorbents from <i>Ananas comosus </i>Leaves

Abstract

The usefulness of Ananas comosus (pineapple) is not limited its fruits. This study aims to explore the removal of glucose, which are present in clinical waste by pineapple leaf biosorbents derived through three pre-treatment methods. Particle size analysis showed the smallest particle were from the steam pre-treated biosorbents and largest particles were from the 5% alkali pre-treated biosorbents. Fourier Transform Infrared Spectroscopy showed that lignin, hemicellulose, and cellulose remained unchanged in both the used and unused biosorbents. Despite the large particle size of the alkali pre-treated biosorbents, up to 70% of glucose was removed which might be due the improvement of the interfacial adhesion during the alkali treatment process.

Effects of Cupric Ion Adsorption onto the Modified Pineapple Pulp as a Biochar Adsorbent

“…Some research did not use adsorbents from natural wastes to cupric adsorption [8][9]. To save the world by decreasing solid wastes, many raw and modified lignocellulosic materials [10][11] i.e., Thumbai (Leucus aspera) leaves [12], grape bagasse [13], and Carnauba straw powder [14], Sugarcane [15], pineapple leave [16][17] and pineapple crown [18] have been already used for cupric ion adsorption. Pineapple is very interesting since its component contains high cellulose to a good characteristic of an adsorbent.…”