Affiliation:
1. Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50010, USA
2. Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50010, USA
3. Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
Abstract
Agricultural byproducts such as corn stover are widely available sources for preparation of nanocellulose, which is an emerging green chemical with versatile applications. In this study, corn stover-derived nanocellulose was prepared via bleaching, alkaline treatment, 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) oxidation, and ultrasonication. The as-prepared TEMPO-oxidized cellulose nanofibril (TEMPO-CNF) was characterized by transmission electron microscopy, UV-Vis spectrophotometry, rheometry, and zeta potential measurement. Droplet size, phase behavior, and thermodynamic stability of TEMPO-CNF stabilized oil-in-water emulsions were investigated. Results show that TEMPO-CNF with a width of 4 nm, length of 353 nm, and surface charge of 1.48 mmol/g COO- can be prepared from corn stover. In addition, TEMPO-CNF can be used as an emulsion stabilizer for lemongrass essential oil loaded oil-in-water emulsion. This study is among the first to report that TEMPO-CNF improved the freeze-thaw stability of oil-in-water emulsions stabilized by small molecular weight surfactants (e.g., Tween 80).
Funder
farm families of Minnesota and their corn checkoff investment
Iowa State University Faculty Startup Fund
Subject
Polymers and Plastics,General Chemistry
Reference51 articles.
1. Nano-cellulose as promising biocarrier;Ioelovich;Advanced Materials Research,2008
2. Recent advances in nanocellulose for biomedical applications;Jorfi;J. Appl. Polym. Sci.,2015
3. Spray-dried nanofibrillar cellulose microparticles for sustained drug release;Kolakovic;Int. J. Pharm.,2012
4. Nanocellulose in biomedicine: Current status and future prospect;Lin;Eur. Polym. J.,2014
5. Minko, S., Sharma, S., Hardin, I., Luzinov, I., Daubenmire, S.W., Zakharchenko, A., Saremi, R., and Kim, Y.S. (2016). Textile Dyeing Using Nanocellulosic Fibers. (No. 9,506,187), U.S. Patent.
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