A green biorefinery platform for cost-effective nanocellulose production: investigation of hydrodynamic properties and b
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ORIGINAL ARTICLE
A green biorefinery platform for cost-effective nanocellulose production: investigation of hydrodynamic properties and biodegradability of thin films R. Reshmy 1 & Philip Eapen 1 & Paul A. Sherely 1 & Madhavan Aravind 2 & Sindhu Raveendran 3 & Binod Parameswaran 3 & Pandey Ashok 4 Received: 23 May 2020 / Revised: 31 July 2020 / Accepted: 13 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Non-degradable plastics are a global crisis that has a detrimental effect on human life and all living systems. Normally, extraction of nanocellulose passes through several tedious processing including a number of steam explosions. This paper is demonstrating an easy method for the extraction of nanocellulose by using a cheaper, effective and modified acid hydrolysis route from sugarcane bagasse. The films were characterised using FT-IR, XRD, FESEM and DLS techniques. The effects of acid, alkali and salt on the thin films and the various hydro-dynamic and tensile properties were also analysed. The degradation of nanocellulose thin films in three types of soils having different moisture-holding capacities using soil burial method (ASTM D 2216) was studied. This study revealed that degradation has a direct correlation to water retention capacity of soils. Also, these thin films could be effectively degradable in soils, salt, acidic and alkaline environments. So, these fall under the category of biobased, biodegradable and compostable bag class. Keywords Nanocellulose . Sugarcane bagasse . Thin film . Biodegradation . Acid hydrolysis
1 Introduction One of the major challenges faced by the present world is to find an effective method to tackle the environmental problems created by non-degradable plastic waste. Non-degradable
plastics are inexpensive and durable, but their accumulation terribly affects the existence of human beings, wildlife and the entire ecosystem. So, it is high time to replace non-degradable plastics by biodegradable ones that disintegrate into organic matter and compost at a particular time [1–5]. The only
Highlights • Cost-effective acid hydrolysis strategy for nanocellulose production. • Water retention capacity of soils has a direct impact on effective degradation. • Easily degradable bioplastic in sea water, acidic or alkaline water environment. • An alternative for non-degradable fossil fuel-based plastics. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s13399-020-00961-1) contains supplementary material, which is available to authorized users. * R. Reshmy [email protected] 1
2
Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, Kerala 690 110, India Rajiv Gandhi Centre for Biotechnology, Jagathy, Thiruvananthapuram, Kerala 695 014, India
3
Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala 695 019, India
4
Centre for Innovation and Translational Research, CSIR -
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