| Gas chromatographic determination of glucono-delta-lactone in foods. | |
MedLine Citation:
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PMID: 6643369 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A method is described for the gas chromatographic (GC) determination of glucono-delta-lactone in foods. A sample was homogenized with 60-70 degrees C water and filtered. The filtrate was buffered with NH4OH-NH4Cl pH 10 solution, and was passed through a QAE-Sephadex A25 column. The column was washed with water and glucono-delta-lactone was eluted with 0.1N HCl. An aliquot of the eluate was evaporated to dryness and derivatized with pyridine, N,O-bis(trimethylsilyl)trifluoroacetamide, and trimethylchlorosilane at room temperature. GC separation of glucono-delta-lactone as the TMS derivative was performed on a 2% OV-17 column at 180 degrees C. Recoveries from bread, jelly, soybean curd, and other foods fortified with 0.1% glucono-delta-lactone ranged from 92 to 106%, with standard deviations from 2.2 to 9.8%. The detection limit was approximately 0.025%. |
Authors:
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T Tsuda; H Nakanishi |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal - Association of Official Analytical Chemists Volume: 66 ISSN: 0004-5756 ISO Abbreviation: J Assoc Off Anal Chem Publication Date: 1983 Nov |
Date Detail:
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Created Date: 1984-01-27 Completed Date: 1984-01-27 Revised Date: 2000-12-18 |
Medline Journal Info:
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Nlm Unique ID: 7505559 Medline TA: J Assoc Off Anal Chem Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1532-4 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Chromatography, Gas Food Analysis* Gluconates / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Gluconates; 90-80-2/beta-glucono-1,5-lactone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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