Journal Articles: 7 results
Mineral Analysis of Whole Grain Total Cereal  Paul Hooker
This article describes the quantitative analysis of the elements iron, zinc, and calcium in Whole Grain Total Cereal, a cereal product that claims to contain 100% of the daily value of several vitamins and minerals. This experiment can be implemented at several instructional levels including chemistry courses for science and nonscience majors, and in more advanced chemistry courses such as quantitative or instrumental analysis.
Hooker, Paul. J. Chem. Educ. 2005, 82, 1223.
Consumer Chemistry |
Food Science |
Nutrition |
Quantitative Analysis |
UV-Vis Spectroscopy |
Nonmajor Courses
Determination of Minerals in Apples by ICP–AES  Mark Duxbury
A laboratory experiment is described that involves the elemental analysis of apples by inductively coupled plasmaatomic emission spectroscopy (IICPAES). The results of the experiment allow students to predict the cold-storage stability of apples.
Duxbury, Mark. J. Chem. Educ. 2003, 80, 1180.
Agricultural Chemistry |
Atomic Properties / Structure |
Consumer Chemistry |
Food Science |
Instrumental Methods |
Nutrition |
Atomic Spectroscopy
Kinetics of Papain: An Introductory Biochemistry Laboratory Experiment  Kathleen Cornely, Eric Crespo, Michael Earley, Rachel Kloter, Aime Levesque, and Mary Pickering
In this experiment, we investigate the kinetics of the thiol protease papain. A specific substrate, Na-benzoyl-arginine-p-nitroanilide (BAPNA), is used, which takes advantage of the fact that papain interacts with a phenylalanine residue two amino acids away from the peptide bond cleaved. Upon hydrolysis by papain, a bright yellow product is released, p-nitroaniline. This allows the reaction to be monitored spectrophotometrically by measuring the rate of formation of the p-nitroaniline product as a function of the increase in absorbance of the solution at the lmax of p-nitroaniline (400 nm) over time at various substrate concentrations. These data are used to plot a Lineweaver-Burk plot from which the vmax and KM are obtained.
Cornely, Kathleen; Crespo, Eric; Earley, Michael; Kloter, Rachel; Levesque, Aime; Pickering, Mary. J. Chem. Educ. 1999, 76, 644.
Enzymes |
Kinetics |
UV-Vis Spectroscopy
A Fast Restriction Enzyme Experiment for the Undergraduate Biochemistry Lab  Farrell, Shawn O.
The article describes a rapid experiment using restriction enzymes. It can be done in one three-hour lab and yields reliable results.
Farrell, Shawn O. J. Chem. Educ. 1994, 71, 1095.
Biochemistry for nutrition/dietetics students: Course content  Sirota, Lorraine Handler
Results regarding surveys of biochemistry resources and content for nutrition/dietetics students.
Sirota, Lorraine Handler J. Chem. Educ. 1984, 61, 430.
Nutrition |
Medicinal Chemistry |
Nonmajor Courses
The metabolism of carbohydrates  
Traces the metabolism of carbohydrates and the flow of materials among the various resource pools in living systems.
J. Chem. Educ. 1979, 56, 534.
Carbohydrates |
Metabolism |
A space-filling model of the active site region of carboxypeptidase A  Sebastian, John F.; Butkus, John C.
A three-dimensional CPK space-filling model of the active site of carboxypeptidase A.
Sebastian, John F.; Butkus, John C. J. Chem. Educ. 1975, 52, 660.
Molecular Properties / Structure |
Molecular Modeling |
Enzymes |
Amino Acids