Abstract
Preparation of cellulose hydrogel from sago pith waste as a medium for seed germination
Highlights
Malaysia produces 168 million tonnes of biomass yearly.[1]
sago pith waste (SPW) cellulose hydrogel was obtained through the crosslinking of polymer chains of the cellulose with ECH catalysed by NaOH
It could be said that pure cellulose was extracted from SPW after pre-treatment and subsequently interacted with ECH to cause shifting of peak observed in the hydrogel spectrum
Summary
Malaysia produces 168 million tonnes of biomass yearly.[1]. Sago industry, for instance, exported approximately 47,000 tonnes of refined sago starch monthly in 2015 alone.[2]. A hydrogel is a three dimensional and cross-linked polymer hydrophilic polymeric material that shows gelling properties in the presence of an aqueous medium.[6] The hydrophilic nature of hydrogel gives rise to its ability to absorb water and contributes to its high swelling ratio.[7] its insolubility is due to its cross-linked network chains.[8] Another property of hydrogel is its capability to swell by absorbing a large amount of water.[5,9] Even though it swells and absorbs a large amount of water, the hydrogel will preserve its physical structure This hydrogel property is influenced by its hydrophilicity, crosslink density, ion content, temperature and the ionic strength of the swelling medium. The potential application of SPW cellulose-based hydrogel potential medium for seed germination was evaluated
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