| Journal Articles: 10 results |
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A New Colorimetric Assay of Tabletop Sweeteners Using a Modified Biuret Reagent Christopher J. Fenk, Nathan Kaufman, and Donald G. Gerbig, Jr.
Presents a new, fast and effective colorimetric analysis of aspartame that incorporates a less caustic biuret reagent and visible spectroscopic analysis for selective detection in aqueous solutions using readily available instrumentation.
Fenk, Christopher J.; Kaufman, Nathan; Gerbig, Donald G., Jr. J. Chem. Educ. 2007, 84, 1676.
Consumer Chemistry |
Coordination Compounds |
Crystal Field / Ligand Field Theory |
Food Science |
Qualitative Analysis |
Quantitative Analysis |
UV-Vis Spectroscopy |
Amino Acids
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Fluorous Compounds and Their Role in Separation Chemistry Maria Angeles Ubeda and Roman Dembinski
Reviews fluorous technology and outlines strategies towards organic synthesis.
Ubeda, Maria Angeles; Dembinski, Roman. J. Chem. Educ. 2006, 83, 84.
Amino Acids |
Catalysis |
Esters |
Green Chemistry |
Separation Science |
Synthesis
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Chemical Modification of Papain and Subtilisin: An Active Site Comparison. An Undergraduate Biochemistry Experiment Mireille St-Vincent and Michael Dickman
This experiment demonstrates the specific chemistry of cysteine and serine residues in the active sites of papain and subtilisin.
St-Vincent, Mireille; Dickman, Michael. J. Chem. Educ. 2004, 81, 1048.
Amino Acids |
Bioorganic Chemistry |
Enzymes
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Protein Design Using Unnatural Amino Acids Basar Bilgiçer and Krishna Kumar
Using examples from the literature, this article describes the available methods for unnatural amino acid incorporation and highlights some recent applications including the design of hyperstable protein folds.
Bilgiçer, Basar; Kumar, Krishna. J. Chem. Educ. 2003, 80, 1275.
Amino Acids |
Bioorganic Chemistry |
Biotechnology |
Proteins / Peptides |
Synthesis |
Molecular Properties / Structure
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Amino acid chromatography: The "best" technique for student labs Helser, Terry L.
Comparisons of linear, conical, and circular chromatograms, as well as media and elutants.
Helser, Terry L. J. Chem. Educ. 1990, 67, 964.
Amino Acids |
Chromatography |
Separation Science
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Qualitative amino acid analysis of small peptides by GC/MS Mabbott, Gary A.
Besides being appealing to students the exercise described here gives them experiences in derivation methods that are often necessary in order to make nonvolatile samples amenable to gas chromatography separation.
Mabbott, Gary A. J. Chem. Educ. 1990, 67, 441.
Amino Acids |
Qualitative Analysis |
Gas Chromatography |
Mass Spectrometry |
Instrumental Methods
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Microscale synthesis and analysis of a dipeptide Blatchly, Richard A.; Allen, Timothy R.; Bergstrom, Dirk T.; Shinozaki, Yuji
The synthesis of a dipeptide from its component amino acids and its analysis by chiral-phase thin-layer chromatography.
Blatchly, Richard A.; Allen, Timothy R.; Bergstrom, Dirk T.; Shinozaki, Yuji J. Chem. Educ. 1989, 66, 965.
Microscale Lab |
Synthesis |
Proteins / Peptides |
Thin Layer Chromatography |
Amino Acids
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The synthesis of a dipeptide from its component amino acids: Protecting groups in the elementary organic laboratory Young, Paul E.; Campbell, Andrew
A three-step procedure for synthesizing a dipeptide from its component amino acids.
Young, Paul E.; Campbell, Andrew J. Chem. Educ. 1982, 59, 701.
Synthesis |
Amino Acids |
Proteins / Peptides
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Photooxidation of methionine. An integrated organic-analytical-biochemistry laboratory experiment Lewis, Catherine; Scouten, William H.
The experiments presented here familiarize the student with the organic reactions necessary to prepare the starting material; introduces the use of glass beads for immobilizing a catalyst; demonstrates the use of light and methylene blue as oxidizers; requires the implementation of an important analytical technique, thin layer chromatography; provides the student with a good example of the reactivity of one amino acid, methionine.
Lewis, Catherine; Scouten, William H. J. Chem. Educ. 1976, 53, 395.
Thin Layer Chromatography |
Amino Acids |
Laboratory Equipment / Apparatus |
Catalysis
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The resolution of DL-histidine: An organic chemistry experiment using an ion exchange resin Bosch, Arthur J.
This experiment involves the isolation of the amino acid, D-histidine, from DL-histidine, and gives a product with high optical purity while demonstrating the use of an ion exchange resin and mixed solvent recrystallization.
Bosch, Arthur J. J. Chem. Educ. 1969, 46, 691.
Ion Exchange |
Amino Acids |
Chirality / Optical Activity |
Enantiomers
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