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Fermentative Activity of Promising Yeasts for Cereal-based Beverages using CO2 Headspace Analysis
carbon dioxide modelling metabolic response
2015/3/4
This article proposes an approach based on the evaluation of CO2
produced by Saccharomyces cerevisiae var. boulardii,
Kluyveromyces lactis × Saccharomyces cerevisiae, Saccharomyces pastorianus var...
Determination of Amitraz Residue by Headspace Gas Chromatography in Honey and Beeswax Samples from Iran
Amitraz Residue Headspace Gas Chromatography
2009/5/31
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...
A Chemometrical Approach for Vinegar Classification by Headspace Mass Spectrometry of Volatile Compounds
headspace-mass spectrometry (HS-MS) vinegar chemometrics
2009/5/31
The volatile fraction of ninety-eight different vinegars was analysed using a head-space analysis instrument assembled in our laboratory. This instrument is formed by an automatic sample introduction ...
Modelling the Effect of Headspace Oxygen Level on the Degradation of Vitamin C in a Model Fruit Juice
oxygen permeability vitamin C fruit juice ascorbic acid dehydro ascorbic acid
2009/3/10
Fruit juices are a significant source of vitamin C in the human diet and therefore their nutritional value is mainly related to the amount vitamin C they contain (KABASAKALIS et al. 2000; MANSO et al....
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...
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...
Determination of chlorinated ethenes in water using headspace solid phase microcolumn extraction combined with thermal desorption in GC injection port
chlorinated ethenes vinyl chloride headspace solid phase microcolumn extraction thermal desorption
2004/12/30
A solvent-free sample preparation method is presented in which volatilized organic substances are extracted via solid phase microcolumn from an appropriate volume of headspace (tens of millilitres) wi...
Headspace Gas Analysis of Volatile Compounds of Light and Deep Roasted Sesame Seed Oil
aroma compounds volatiles headspace gas analysis
1997/5/15
Volatile compounds in the headspace gas of light and deep roasted sesame seed oil were analyzed by gas chromatography and gas chromatography-mass spectrometry. The present method resulted in good repr...
Comparison of Headspace Volatiles of Philippine Fish Sauces
fish sauce volatile compounds fish sauce odor
1996/7/3
Headspace gas chromatography (GC) analysis was used on three brands of Philippine fish sauces (patis) with a non-adjusted pH and pH 11.0. Under alkalized conditions, large amounts of trimethylamine an...
Dynamic Headspace Analysis of Volatile Aroma Compounds of Fresh and Deteriorated Mackerel (Scomber scombrus)
volatile aroma compounds aroma quality mackerel
1995/10/9
Volatile aroma compounds of mackerel samples (fresh, and frozen then stored for 5 days at 15±2°C (FR)) were analyzed by a dynamic headspace concentrator/gas chromatography/mass spectrometry (DHA/GC/MS...