Cellulose-based hydrogel as halal agricultural medium

Sarah Husnaini Zainal, and Rica Nofrianti, and Azwan Mat Lazim, and Rizafizah Othaman, (2019) Cellulose-based hydrogel as halal agricultural medium. Malaysian Applied Biology, 48 (2). pp. 109-113. ISSN 0126-8643


Official URL: http://www.mabjournal.com/index.php?option=com_con...


Waste paper has been thrown away and caused environmentally problem. Preparation of cellulose-based hydrogel from waste paper has been developed to decrease the pollution since waste paper contains more than 60% of cellulose. Cellulose-based hydrogel is produced from the waste paper solution. To make into hydrogel, the addition of crosslinking agent is needed since hydrogel is defined as a 3D network structure that is crosslinked either chemically or physically. In this study, the waste paper will be treated first to remove impurities. Sodium hydroxide/urea (NaOH/Urea) has been used as a solvent for waste paper dissolution. As hydrogel needed crosslinking to remain the network structure, we used citric acid (CA) as a chemical crosslinking agent and the heating at 60°C and 70°C before and after swelling was studied. The aim of this study is to produce halal soilless agricultural medium using cellulose-based hydrogel media from the waste paper by using non-toxic and environmental friendly solvents and CA as crosslinking agent. Waste paper hydrogel will be characterized via swelling ratio where the highest swelling is about 19% at 70°C heating temperature. Fourier-transform infrared (FTIR) shows a broad band of OH at 3339 cm-1 and another band was shown at 3432 cm-1 for 70°C heating temperature represent OH from the solvent.

Item Type:Article
Keywords:Waste paper; Cellulose; Hydrogel; Crosslinking
Journal:Malaysian Applied Biology Journal
ID Code:14674
Deposited By: ms aida -
Deposited On:19 May 2020 00:57
Last Modified:27 May 2020 01:14

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