Extraction of Maltol from Fraser Fir: A Comparison of Microwave-Assisted Extraction and Conventional Heating Protocols for the Organic Chemistry Laboratory

Autor:	Allan K. Hovland, Allison N. Berg, Jean-Paul Spencer, Farah D. Mughal, Andrew S. Koch, Leah R. Eller, Clio A. Chimento, Douglas E. Hovland, Bessie Mbadugha
Rok vydání:	2014
Předmět:	Green chemistry Fraser fir biology Extraction (chemistry) Maltol General Chemistry Aqueous ethanol biology.organism_classification Microwave assisted Education Solvent chemistry.chemical_compound chemistry Organic chemistry Dichloromethane
Zdroj:	Journal of Chemical Education. 92:170-174
ISSN:	1938-1328 0021-9584
DOI:	10.1021/ed500213f
Popis:	Two methods for the extraction of maltol from Fraser fir needles are performed and compared in this two-week experiment. A traditional benchtop extraction using dichloromethane is compared to a microwave-assisted extraction using aqueous ethanol. Students perform both procedures and weigh the merits of each technique. In doing so, students see a trade-off between the ease of working with a highly volatile organic solvent and the selectivity that can be achieved with the greener solvent combination. This experiment combines multiple lab techniques, highlights the connections between chemistry and biology, and provides straightforward 1H NMR spectra to support the introduction of spectroscopy in first-semester organic chemistry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cdd5f60fe56186b3b51769fe8ef541d1 https://doi.org/10.1021/ed500213f Zobrazit plný text záznamu