In this study, bacterial cellulose (BC) was synthesized by Acetobacter xylinum ATCC 23767 using tobacco waste extract (TWE) as a carbon source. Nicotine was found to be an inhibitory factor for BC synthesis, but it can be removed at pH 9.0 by steam distillation. After removing nicotine, the BC production was 2.27 g/L in TWE prepared with solid-liquid (S-L) ratio at 1:10. To further enhance the BC production, two fermentation stages were performed over 16 days by re-adjusting the pH to 6.5 at 7 days, after the first fermentation stage was completed. Using this two-stage fermentation, the BC production could reach 5.2 g/L. Structural and thermal analysis by FE-SEM, FT-IR, XRD and TGA showed the properties of BC obtained from TWE were similar to that from Hestrin-Schramm (HS) medium. Considering the huge disposal tobacco waste in China, the present study provides an alternative methodology to synthesize BC.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2018.12.028 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Estimating the accumulation and re-accumulation of commercial tobacco, electronic cigarette, and cannabis waste based on a stratified random sample of census blocks.
PLoS One
January 2025
Center for Tobacco and the Environment, San Diego State University, San Diego, California, United States of America.
We investigated the amount and distribution of waste generated by commercial tobacco, electronic cigarette, and cannabis (TEC) use to inform policy options aimed at mitigating the environmental harm caused by these products. Using disproportionate stratified random sampling, we selected 60 census blocks from the eight largest cities in San Diego County, California. We twice surveyed publicly accessible areas in these blocks to quantify TEC waste accumulation and its re-accumulation.
View Article and Find Full Text PDFImproved bacterial cellulose production by Acetobacter oryzoeni MGC-N8819 in tobacco waste extract coupled with nicotine removal by Pseudomonas sp. JY-Q/5∆.
Int J Biol Macromol
December 2024
College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang Province, PR China. Electronic address:
As the substrate, tobacco waste extract (TWE) can produce bacterial cellulose (BC), a biobased material. However, nicotine inhibits BC production (adding 0.8 g/L nicotine to the HS medium had a negative effect on BC synthesis) and needs to be removed.
View Article and Find Full Text PDFPreliminary analysis of the presence of metals and metalloids in cigarette butts and fibers discarded on a tourist beach in Cartagena, Colombia.
Environ Monit Assess
December 2024
Faculty of the Sea and Environment, Universidad Del Pacífico, Guayaquil, Ecuador.
Cigarette butts are classified as plastic waste due to their composition of cellulose acetate fibers and are commonly found in beach sand. Their persistence in the environment, low biodegradability, and potential to interact with metals and metalloids during the aging process make them a significant subject of interest for research on coastal marine ecosystems. The aim of this study is to investigate the presence of metals such as hexavalent chromium Cr (VI), cadmium (Cd), and the metalloid arsenic (As) in cigarette butts (CBs), cigarette butt fibers (CBFs), and sand on a tourist beach in Cartagena, Colombia.
View Article and Find Full Text PDFReduction of nicotine content in tobacco through microbial degradation: research progress and potential applications.
Biotechnol Biofuels Bioprod
December 2024
School of Life Sciences, Taizhou University, Taizhou, 318000, Zhejiang, People's Republic of China.
Originally native to South America, tobacco and is now distributed worldwide as a major cash crop. Nicotine is the main harmful component of tobacco leaves, cigarette smoke and tobacco waste, which severely affects not only the flavor of the tobacco leaf, but also causes great damage to human health. As the anti-smoking movement continued to grow since the 1950s, and consumers become more aware of their health and environmental protection, the world tobacco industry has been committed to research, develop and produce low nicotine cigarette products with relatively low risk to human health.
View Article and Find Full Text PDFIdentification of emerging contaminants in greywater emitted from ships by a comprehensive LC-HRMS target and suspect screening approach.
Environ Pollut
December 2024
Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003, Girona, Spain; Universitat de Girona (UdG), Girona, Spain. Electronic address:
The increase in maritime traffic has led to substantial greywater discharges into the marine environment. Greywater, originating from sinks, showers, kitchen, and laundry facilities, contains a wide array of chemical contaminants influenced by on-board activities, ship size, and management practices. The lack of comprehensive regulations for greywater management, along with limited research on its chemical composition, highlights the need to characterize these waste streams.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!