Valorisation of Pineapple Peel Feedstock as a Source of Glucose for Bioethanol and Biochemical Production: Kinetic and Thermodynamic Insights into Cellulose Hydrolysis
نویسندگان
1 Department of Medicine and Surgery, University of Ibadan, Oyo State, Nigeria
2 Department of Analytical Chemistry, Imo State University, Nigeria
3 Department of Physiology, University of Lagos, Lagos, Nigeria
4 Department of public health, Western Illinois University, Macomb, Illinois, USA
5 Department of Chemical Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
6 Department of Nutrition and Dietetics, University of Ghana, Ghana
7 Department of Agricultural and Bioresources Engineering, University of Nigeria, Nsukka, Nigeria
8 Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Nigeria Nsukka, Nigeria
9 Department of Mining and Mineral Engineering, University of Bamenda, Bamenda, Cameroon
10 Department of Chemical Engineering, University of Benin, Benin, Nigeria
11 Department of Chemical Engineering, Ahmadu Bello University, Zaria, Nigeria
12 Department of Electrical Electronics Engineering, University of Ibadan, Nigeria
13 Department of Chemical Engineering, University of Strathclyde, Glasgow UK
14 Department of Chemical Engineering, University of Lagos, Lagos, Nigeria
15 Department of Chemical Engineering, Federal University of Technology, Owerri, Nigeria
16 Department of Civil Engineering, University of New Haven, West Haven, USA
17 Department of Chemical Engineering, Chukwuemeka Odumegwu Ojukwu University Uli, Atughobi, Nigeria
18 Department of Environmental Management Technology, Federal University of Technolology, Owerri, Nigeria
doi
10.48309/pcbr.2024.435556.1333چکیده
The serious environmental and public health problems caused by the overconsumption of fossil fuels necessitate the development of sustainable and eco-friendly alternatives. Promising approaches to achieve these goals include bioethanol and biochemicals derived from plant biomass. However, their production requires efficient cellulose hydrolysis, which is the primary component of lignocellulosic waste. In this study, the potential of pineapple peel- a widely consumed fruit and a source of lignocellulosic waste- was evaluated as a feedstock for glucose production. Simultaneously, we addressed the issue of environmental litter generated by discarded pineapple peels. Cellulose was isolated from pineapple peel using thermogravimetric analysis, followed by hydrolysis with 0.5 M H2SO4 at different temperatures (40-80 °C) and times (0-30 min). Glucose yield was measured using UV-Vis spectrophotometry, and the kinetics and thermodynamics of the hydrolysis reaction were modelled. The glucose yield increased with temperature, reaching 72.3 ± 2.1% at 80 °C and 30 min. The hydrolysis reaction followed a pseudo-first-order kinetic model with an activation energy of 5.4 ± 0.3 kJ/mol. The cellulose content of pineapple peel was 30.1 ± 0.5%. Our findings demonstrate the feasibility and potential of pineapple peel as a sustainable source of glucose for bioethanol and biochemical.
