搜索结果: 1-13 共查到“食品科学技术 gas chromatography”相关记录13条 . 查询时间(0.142 秒)
Determination of volatiles in beer using solid-phase microextraction in combination with gas chromatography/mass spektrometry
GC headspace technique solid phase microextraction volatile compounds
2014/7/10
Headspace solid phase microextraction and purge and trap analysis were used for the determination of volatiles in beer. These methods were compared with the analysis of unconcentrated gas phase and li...
Preparation of flaxseed for lignan determination by gas chromatography–mass spectrometry method
defatting extraction GC/MS hydrolysis lignans
2014/2/25
Since 1980s, several methods for the determination of lignans in food samples have been developed depending on the types of lignans and foods analysed, but mostly on flaxseed as a reference food. In t...
Flavor Design of Sesame-flavored Dressing Using Gas Chromatography/Olfactometry and Food Kansei Model
sesame-flavored dressing solid-phase microextraction (SPME) sensory analysis
2009/5/31
Instrumental and sensory analyses were carried out on sesame-flavored dressings to identify the odorants affecting their perceived quality. The sampling of the odor-active compounds was performed by s...
Determination of Amitraz Residue by Headspace Gas Chromatography in Honey and Beeswax Samples from Iran
Amitraz Residue Headspace Gas Chromatography
2016/5/31
In this study, 70 samples of honey and beeswax from different beehives (Eastern and Western Azerbaijan, Ardabil territory, Iran), markets and store shelves of (Tehran, Iran) were collected during 2006...
Determination of Reductones, Furans and Organic Acids in Aqueous Model Matrices Using Solid-Phase Extraction and Gas Chromatography/Mass Spectrometry
reductone furan organic acid
2009/5/31
A method using solid-phase extraction (SPE) and GC-MS was developed for the determination of a series of polar and unstable flavor compounds: reductones, furans and volatile organic acids, in aqueous ...
Determination of Amitraz Residue by Headspace Gas Chromatography in Honey and Beeswax Samples from Iran
Amitraz Residue Headspace Gas Chromatography Honey Beeswax Iran
2009/1/21
In this study, 70 samples of honey and beeswax from different beehives (Eastern and Western Azerbaijan, Ardabil territory, Iran), markets and store shelves of (Tehran, Iran) were collected during 2006...
Quantitative Analysis of in Traditional Egyptian Foods (Koushary and Foul Medams), Black Tea, Instant Coffee and Bottled Waters by Solid Phase Extraction-Capillary Gas Chromatography-Mass Spectroscopy
Phthalates Plasticizers Egyptian Foods
2016/5/31
In the present study, method of solid-phase extraction followed by capillary gas chromatography coupled to mass spectrometry (SPE-GC-MS) was used for quantitative analysis of trace levels of phthalate...
Rapid Determination of Cholesterol in Milk and Milk Products by Direct Saponification and Capillary Gas Chromatography
cholesterol milk products capillary gas chromatography
2008/3/28
A simple method is described for the determination of cholesterol in milk and milk products. Samples (0.2 g) are saponified in capped tubes with 0.5 M methanolic KOH solution by heating for 15 min at ...
Method for Assaying Volatile Compounds by Headspace Gas Chromatography and Application to Growing Starter Cultures
headspace gas chromatography diacetyl leuconostoc mixed culture
2008/3/22
Automatic headspace gas chromatography was used to assay volatile compounds in fermented milks, including diacetyl, which is of particular interest because of its aromatic properties. -Acetolactic aci...
The Use of Gas Chromatography to Measure Carbon Dioxide Production by Dairy Starter Cultures
carbon dioxide gas chromatography dairy starter cultures
2008/3/18
A gas chromatographic method was developed to quantify CO2 produced by dairy starter cultures. The procedure was used to measure CO2 production by Lactococcus lactis ssp. lactis KB, a lactic dehydroge...
Assessment of the authenticity of fruit spirits by gas chromatography and stable isotope ratio analyses
authenticity fruit spirits gas chromatography stable isotope ratio analysis IRMS SNIF-NMR linear discriminant analysis
2014/3/3
The gas chromatographic (GC) determination of volatile constituents and the determination of 13C/12C isotope ratios by isotope ratio mass spectrometry – IRMS analysis as well as SNIF–NMR analysis of (...
Determination of vinyl chloride monomer in food contact materials by solid phase microextraction coupled with gas chromatography/mass spectrometry
migration solid phase microextraction (SPME) vinyl chloride monomer
2014/3/19
The present study concerns the optimisation of the headspace solid phase microextraction (HS/SPME) combined with gas chromatography/mass spectrometry (GC/MS) for the vinyl chloride monomer determinati...
Determination of bisphenol A, bisphenol F, bisphenol A diglycidyl ether and bisphenol F diglycidyl ether migrated from food cans using Gas Chromatography-Mass Spectrometry
bisphenol A bisphenol F bisphenol A diglycidyl ether bisphenol F diglycidyl ether migration gas chromatography mass spectrometry
2014/3/19
Varnishes used for the inner coatings of food cans are mostly based on epoxy resins or vinylic organosols. The epoxy resins are produced from bisphenol A and bisphenol F and they also contain BADGE or...