Bioethanol Production from Residual Tobacco Stalks
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 24, Issue 6
Abstract
Aims: In this work, bioethanol production from residual tobacco stalks was investigated. Place and Duration of Study: Stalks sampling was in South Brazil crops and experiments in chemistry laboratories at Unisc, after tobacco leaf harvest. Methodology: Pretreatments were conducted with sulfuric acid solution (1 to 3%) in an autoclave (121°C) for 30 to 90 min. Enzymatic hydrolysis was performed with two enzymes, CTec2 and HTec2 (Novozymes). Fermentation (Saccharomyces cerevisiae) was conducted with hydrolysate obtained in selected conditions of acid pretreatment and enzymatic hydrolysis. Results: In enzymatic hydrolysis, 38.1% glucose was obtained from the pretreated solid. The ethanol yield was 0.06 to 0.19 g of ethanol per g of dried and milled tobacco stalk. The results showed that it is possible to use this biomass for the ethanol production; however, some saccharification variables can still be modified to increase the conversion. Conclusion: Thus, tobacco stalk, which has no economic value, appears to be a source of monosaccharides for the fermentation and production of bioethanol. Furthermore, the exploitation of tobacco stalks may be of great importance to agriculture and industry as currently over 300,000 ha of land in Southern Brazil is used for tobacco production, and after harvesting, the stalks simply remain unused in the soil.
Authors and Affiliations
Rosana de Cassia de Souza Schneider, Leonardo Amonte Anacker, Mateus da Silva Szarblewski, Lilian de Fátima Ferreira da Silva, Maria Silvana Aranda Moraes, Valeriano Antônio Corbellini
Keywords
Related Articles
- EP ID EP319158
- DOI 10.9734/CJAST/2017/37948
- Views 101
- Downloads 0
Evaluation of Stem Biomass and Carbon Density of Four Deciduous Tree Species in Northern Plains of India Using Regression Modeling
Assessment of carbon stock in trees is generally based on allometric equations relating either volume, or biomass, or carbon to DBH. The carbon density of different tree parts is not often measured directly, but generall...
Effect of Metakaolin on the Strength Properties of Sisal Fibre Reinforced Concrete
This paper presents the results of the investigation into the effect of metakaolin on the strength properties of sisal fibre reinforced concrete. Plain control concrete and binary concrete mixes (containing 5, 10, 15, 20...
An Analysis of the Potential, Constraints and Strategies for Development of Marirangwe Farm (A Project of the Women’s University in Africa)
Aims: The aim of the study was to conduct an analysis of the potential, constraints and strategies for development of Marirangwe Farm. Marirangwe Farm is a project of the Women’s University in Africa (WUA) in Mashonaland...
Jute Production: The Need for Linkage among Research, Farmers and Industries in West Bengal, India
The research study was conducted in four major jute growing districts of West Bengal to analyse the problems in jute sector as a whole and to develop a model to frame for the effective functioning of the jute sector. The...
Time Period in Which Radiation Workers Completed the 20 mSv Annual Limit
Background: Nuclear Institute of Medicine and Radiotherapy Jamshoro, an institute of Pakistan Atomic Energy Commission provides the facilities of diagnosis and treatment to cancer patients of encasement areas of Jamshoro...