000			02297nam a22002657a 4500
005			20231106095349.0
008			231030b ||||| |||| 00| 0 eng d
022			_a0021-9584
037			_bRIEBPL Library
082			_a540.7
100			_aLauren I. Austen et al ...
245			_aByproduct Valorization: From Spent Coffee Grounds to Fatty Acid Ethyl Esters _b(Journal Article) _c
260			_aWashington, United States _b:American Chemical Society _c,January 10, 2023
300			_a327-335p.
490			_aAmerican Chemical Society, Volume 100, Issue 1
505			_a***______{For Hard Copy, Please visit Library.}________***
520			_aAbstract:- A laboratory experiment was designed to provide students with an introduction to byproduct valorization by producing an analogue of biodiesel (fatty acid ethyl esters, FAEE) via lipid extraction and subsequent transesterification from spent coffee grounds (SCG). Valorization is the process of upgrading underutilized or discarded wastes or byproducts into chemicals, materials, and (bio)energy. Upon isolation of the intermediate and FAEE, students analyzed the respective spectroscopic characteristics using infrared and nuclear magnetic resonance spectroscopy as well as evaluated gas chromatography spectra that were provided. Associated green metrics for the reaction were determined to obtain a quantitative measure of the “greenness” of the experiment. In this laboratory experiment, students are introduced to key concepts such as whole systems thinking and the United Nations Sustainable Development Goals where they apply these frameworks to real-world problems such as consumption and waste disposal. In addition to providing a greener alternative to traditional methods for biodiesel analogue production from SCG by solvent alterations, this experiment demonstrates the value of waste that would otherwise be overlooked to generate products that can help reduce the continued use of finite fossil fuels.
650			_aGreen Chemistry Second-Year
650			_aUndergraduate Analytical
650			_aChemistry Laboratory Instruction
650			_aHands-on Learning/Manipulatives
650			_aFatty Acids Lipids
856			_uhttps://pubs.acs.org/doi/epdf/10.1021/acs.jchemed.2c00728
942			_cPER
999			_c44689 _d44688