| Rapid analysis of methanol in grape-derived distillation products using near-infrared transmission spectroscopy. | |
| | |
MedLine Citation:
|
PMID: 12009965 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Samples of distillates derived from the production of wine-fortifying spirit were analyzed for methanol by gas chromatography (GC) and near-infrared spectroscopy (NIRS). NIRS calibration models were developed which could accurately predict methanol concentrations in samples of fortifying spirit that had been produced over a period of three years from four different commercial distillation facilities. The best accuracy of the predictive models, as measured by the standard error of prediction value, was 0.06 g/L methanol. Other distillation fractions, produced during preparation of commercial fortifying spirit, were also examined. The most useful NIRS calibration models used partial least squares regression on continuous spectra from a scanning instrument, but it was demonstrated that calibrations could also be developed with a smaller number of fixed wavelengths, using multiple linear regression models. NIRS offers the advantages of rapid analysis, with simple routine operation, and may offer the potential for in-line process control in the operation of a commercial distillation facility. |
| | |
Authors:
|
Robert G Dambergs; Ambrosias Kambouris; I Leigh Francis; Mark Gishen |
Related Documents
:
|
16822745 - A molecular time-scale for eukaryote evolution recalibrated with the continuous microfo... 10679735 - Determination of liposome size distribution by flow cytometry. 22350435 - Point process time-frequency analysis of dynamic respiratory patterns during meditation... 1517265 - Accuracy assessment and control point configuration when using the dlt for photogrammetry. 17375335 - Is the abundance of species determined by their functional traits? a new method with a ... 20392025 - Replicated sampling increases efficiency in monitoring biological populations. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of agricultural and food chemistry Volume: 50 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2002 May |
Date Detail:
|
Created Date: 2002-05-15 Completed Date: 2002-07-05 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
|
Languages: eng Pagination: 3079-84 Citation Subset: IM |
Affiliation:
|
The Australian Wine Research Institute, P.O. Box 197, Glen Osmond, SA 5064, Australia. bob.dambergs@awri.com.au |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Calibration Chromatography, Gas Ethanol / analysis Linear Models Methanol / analysis* Spectroscopy, Near-Infrared Vitis / chemistry* Wine / analysis |
| Chemical | |
Reg. No./Substance:
|
64-17-5/Ethanol; 67-56-1/Methanol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Transition metal-carbonyl labeling of biotin and avidin for use in solid-phase carbonyl metallo immu...
Next Document: Fractal analysis of ice crystals in frozen food.