Results 21 to 30 of about 25,474 (251)
A chromatographic approach to distinguish Gram-positive from Gram-negative bacteria using exogenous volatile organic compound metabolites [PDF]
, 2017 This paper utilized L-alanine aminopeptidase activity as a useful approach to distinguish between Gram-negative and Gram-positive bacteria. This was done using two enzyme substrates, specifically 2-amino-N-phenylpropanamide and 2-amino-N-(4-methylphenyl ...
Dean, John +6 more
core +2 more sources
Comparison between extraction methods to obtain volatiles from lulo (Solanum quitoense) pulp
Revista Colombiana de Química, 2016 Simultaneous Distillation-Solvent Extraction (SDE) and Headspace Solid Phase Micro-extraction (HS-SPME), coupled to Gas Chromatography-Mass Spectrometry (GC-MS), for the recovery of volatiles from lulo pulp (Solanum quitoense) were compared. A completely
Eduardo Javid Corpas Iguarán +3 more
doaj +1 more source
Frontiers in Nutrition, 2022 Pugionium cornutum (L.) Gaertn (also Pugionium) is a special Mongolian vegetable, belonging to the Cruciferous family, growing in arid and semi-arid areas of northern China, with a unique flavor and potential health benefits.
Haoyu Li +8 more
doaj +1 more source
Migration of mineral oil aromatic hydrocarbon (MOAH) from hot melt adhesives used in food packaging materials [PDF]
, 2022 This article studies the migration of MOAH from hot melt adhesives used in multilayer laminates into food simulants. First, the initial concentration of a group of compounds selected as MOAH markers in several adhesives was determined by headspace solid ...
Domeño, Celia +3 more
core +1 more source
Foods, 2022 Compared with spring tea, summer tea has the advantages of economy and quantity. However, research on the aroma characteristics of summer tea is currently limited. In this study, summer fresh tea leaves (castanopsis. sinensis, cv.
Jiyuan Xu +9 more
semanticscholar +1 more source
Food Chemistry: X, 2023 This study employs sensory evaluation, headspace gas chromatography–ion mobility spectrometry (HS-GC-IMS), and headspace solid-phase microextraction gas chromatography–mass spectrometry (HS-SPME-GC-MS) techniques to investigate the effect of different ...
Hongyu Zhou +3 more
doaj +1 more source
Proficiency Test on the Determination of Furan in Baby Food [PDF]
, 2008 The Institute for Reference Materials and Measurements (IRMM) of the European Commission's Joint Research Centre (JRC) was requested by the Directorate General Health and Consumer Protection (DG SANCO) to organise in 2008 a proficiency test on the ...
KARASEK Lubomir +2 more
core +1 more source
Foods, 2023 Volatile organic compounds (VOCs) make up milk flavor and are essential attributes for consumers to evaluate milk quality. In order to investigate the influence of heat treatment on the VOCs of milk, electronic nose (E-nose), electronic tongue (E-tongue)
Ning Yuan +4 more
semanticscholar +1 more source
Composition of antifungal volatile organic compounds in Sextonia rubra fruit by molecular networks
Comptes Rendus. Chimie, 2023 Sextonia rubra is a tropical tree exploited for its durable wood. Hydrodistillation of its fruit was performed for the first time and the resulting hydrolate was analyzed by headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS ...
Levasseur, Marceau +9 more
doaj +1 more source
Analyzing Volatile Compounds of Young and Mature Docynia delavayi Fruit by HS-SPME-GC-MS and rOAV
Foods, 2022 This study focused on the examination of the volatile compounds and fragrance properties of the young and mature fruit of Docynia delavayi. Headspace solid-phase microextraction combined with gas chromatography–mass spectrometry (HS-SPME-GC-MS) was ...
Yun-Jia Wang +3 more
semanticscholar +1 more source