Journal Articles: 11 results
Molecular Models of Natural Products  William F. Coleman
This month¬Ěs Featured Molecules focus on natural products and include blattellquinone, a sex pheromone secreted by female German cockroaches to attract males, and (R)-limonene, a secondary metabolite found in citrus fruit peels.
Coleman, William F. J. Chem. Educ. 2008, 85, 1584.
Molecular Modeling |
Molecular Properties / Structure |
Natural Products
Identification of Secondary Metabolites in Citrus Fruit Using Gas Chromatography and Mass Spectroscopy  Jean-Michel Lavoie, Esteban Chornet, and André Pelletier
Using a simple extraction and a gas chromatograph coupled with a mass spectrometer, this protocol allows students in analytical or organic chemistry to quantify and qualify monoterpenes from the peels of limes, grapefruits, and oranges.
Lavoie, Jean-Michel; Chornet, Esteban; Pelletier, André. J. Chem. Educ. 2008, 85, 1555.
Alkenes |
Food Science |
Gas Chromatography |
Mass Spectrometry |
Natural Products |
Plant Chemistry |
Qualitative Analysis |
Quantitative Analysis
Identifying Softwoods and Hardwoods by Infrared Spectroscopy  Brady Barker and Noel L. Owen
Infrared spectra of 45 softwoods and hardwoods have been recorded. The wavenumber values of the carbonyl stretching vibration and one of the ring-breathing modes of lignin are used to distinguish softwoods from hardwoods. The differences between the absorption bands for the softwoods and hardwoods in each instance are shown to be statistically significant.
Barker, Brady; Owen, Noel L. J. Chem. Educ. 1999, 76, 1706.
Carbohydrates |
Instrumental Methods |
IR Spectroscopy |
Plant Chemistry |
Molecular Properties / Structure
Chem-Is-Tree  Dana M. Barry
Trees are woody plants that contain chemicals and undergo chemical reactions. They consist of cellulose, volatile oils, fatty acids, and more.
Barry, Dana M. J. Chem. Educ. 1997, 74, 1175.
Plant Chemistry |
Natural Products
Identification of Volatile Flavor Components by Headspace Analysis: A Quick and Easy Experiment for Introducing GC/MS  Richard Kjonaas, Jean L. Soller, and Leslee A. McCoy
By placing a piece of chewing gum (Wrigley's) or a crushed piece of hard candy (LifeSavers or Runts) into a vial, followed by GC/MS analysis of a five microliter sample of the headspace, students are able to identify several of the volatile flavoring components which are present.
Kjonaas, Richard; Soller, Jean L.; McCoy, Leslee A. J. Chem. Educ. 1997, 74, 1104.
Instrumental Methods |
Food Science |
Mass Spectrometry |
Natural Products |
Quantitative Analysis |
Gas Chromatography
Hot and Spicy versus Cool and Minty as an Example of Organic Structure-Activity Relationships  Doris R. Kimbrough
Structures of substances found in spices and food that we normally associate with "hot" (or spicy) and "cool" (or minty) flavors are presented and discussed. Functional group similarities within the two groups provide an interesting example of the relationship between molecular structure and molecular function.
Kimbrough, Doris R. J. Chem. Educ. 1997, 74, 861.
Molecular Properties / Structure |
Natural Products |
Plant Chemistry |
Applications of Chemistry
Monoterpenes: An easily accessible but neglected class of natural products  Glidewell, Christopher
The class of products is structurally and spectroscopically straightforward and many in this group are key components of familiar flavors and odors. I.e., extraction of orange peel.
Glidewell, Christopher J. Chem. Educ. 1991, 68, 267.
Natural Products |
Separation Science
The geochemistry of coal. Part II. The components of coal  Schobert, Harold H.
The formation of peat represents the end of the biochemical phase of coalification. The subsequent events are referred to as the geochemical phase, or metamorphosis.
Schobert, Harold H. J. Chem. Educ. 1989, 66, 290.
Natural Products |
Natural products. An independent study project  Griffin, Rodger W., Jr.
This paper provides leading references and describes in detail an independent project suitable for students with at least one year of general chemistry.
Griffin, Rodger W., Jr. J. Chem. Educ. 1974, 51, 601.
Natural Products |
Undergraduate Research
Structural variety of natural products  Roderick, William R.
Classes of natural products examined includes alkynes; quinones; benzpyrones; small and large rings; sulfur, nitrogen, and halogen-containing compounds; and new amino acids.
Roderick, William R. J. Chem. Educ. 1962, 39, 2.
Natural Products |
Amino Acids |
Alkynes |
Aromatic Compounds
Chemistry of citrus fruits  Joseph, Glenn H.
This discussion endeavors to show the structures and characteristic reactions of typical compounds of citrus fruits, illustrating the diverse fields of chemistry that are involved with commercial products.
Joseph, Glenn H. J. Chem. Educ. 1957, 34, 513.
Consumer Chemistry |
Applications of Chemistry |
Plant Chemistry