Results 91 to 100 of about 1,345,257 (199)

Characterization of volatile compounds in Mentha spicata L. dried leaves

Advances in Horticultural Science, 2017
Gas chromatography-mass spectrometry (GC-MS) is one of the most common techniques used to measure and to characterize volatile organic compounds (VOCs).
E. Masi, S. Caparrotta, C. Taiti, F. Ieri, P. Fiume, N. Moselhy, S. Mancuso, A. Romani   +7 more
doaj   +1 more source

Understanding Dissolved Organic Matter Reactivity and Composition in Lakes and Streams Using Proton-Transfer-Reaction Mass Spectrometry (PTR-MS)

Environmental Science and Technology Letters, 2018
Here, we present a novel approach for investigating dissolved organic matter (DOM) composition using thermal desorption proton-transfer-reaction mass spectrometry (PTR-MS), a technique that provides insight into the molecular composition of DOM < m/z 500
M. Peacock, Dušan Materić, D. Kothawala, R. Holzinger, M. Futter   +4 more
semanticscholar   +1 more source

Comparative analysis of Volatile Compounds (potential aromatic ability) in the fruit of 15 olive Italian cultivars

Advances in Horticultural Science, 2018
Virgin olive oils (VOOs) are characterized by peculiar flavors appreciated by the consumers all over the world. Their organoleptic characteristics depend on the aromatic properties of the fruits of the different cultivars, which will originate the final ...
Cosimo Taiti, Mirvat Redwan, Elettra Marone, Giulia Atzori, Elisa Azzarello, Stefano Mancuso   +5 more
doaj   +1 more source

In-Depth Investigation of the Chemical Profile of Pelargonium odoratissimum (L.) L’Hér. Hydrolate by SPME-GC/MS, GC/MS, LVI-GC/MS and PTR-Tof-MS Techniques

Chemosensors
Hydrolates are aromatic aqueous solutions saturated with volatile water-soluble compounds of essential oil. Despite their potential, hydrolates remain less explored than essential oils. In this work, the hydrolate of Pelargonium odoratissimum (L.) L’Hér.
Cosimo Taiti, Vittorio Vinciguerra, Monica Mollica Graziano, Elisa Masi, Stefania Garzoli   +4 more
doaj   +1 more source

PTR-MS tekniğinin gıda analizlerinde kullanımı

, 2019
Gıda bilimi ve teknolojisi alanında uçucu organik bileşikler önemli bir konu başlığını teşkil etmektedir. Bu bileşikler gıdanın lezzetini oluşturan maddelerdir. Lezzet bileşenlerinin hızlı tespiti urun kalitesinin tespitini, temel ve endüstriyel işlemlerin izlenmesini kolaylaştırmaktadır.
openaire   +1 more source

Odor-active aroma compounds in traditional fermented dairy products: The case of mabisi in supporting food and nutrition security in Zambia

Current Research in Food Science
Aroma is a key sensory attribute that determines consumer preference and acceptability of foods. The aroma of fermented dairy products comprises the volatile organic compounds (VOCs) produced by the activity of fermenting microbes and the compounds ...
Thelma W. Sikombe, Anita R. Linnemann, Himoonga B. Moonga, Stefanie Quilitz, Sijmen E. Schoustra, Eddy J. Smid, Anna Alekseeva   +6 more
doaj   +1 more source

Rapid Identification of Carbapenem-Resistant Klebsiella pneumoniae and Carbapenemase Genes via PTR-MS

Infection and Drug Resistance
Xuan Teng,1,2 Kexue Yu,1,2 Qi Zhang,3 Chengcheng Ma,1,2 Wenwen Chu,2 Chengyin Shen,3 Zhou Liu1 1Department of Clinical Laboratory Center, Anhui Chest Hospital, Hefei, 230031, People’s Republic of China; 2Department of Clinical Laboratory, the Second ...
Teng X, Yu K, Zhang Q, Ma C, Chu W, Shen C, Liu Z   +6 more
doaj  

Sex-specific association of immunological markers in CS-delivered newborns with pre-pregnancy body mass index and gestational weight gain of mothers

Scientific Reports
Just as overweight and obesity may impair immunity, excessive body weight-related parameters of women in the pre-conception period and during pregnancy are possible detrimental factors for fetal programming of the immune system in their offspring.
Karolina Rak, Michaela Godyla-Jabłoński, Monika Bronkowska   +2 more
doaj   +1 more source

On-line detection in liquid phase with PTR-MS

, 2014
PTR-MS (Protonen-Tausch-Reaktion Massenspektrometrie) ist eine weit verbreitete Spurengasanalysemethode. Allerdings besitzt diese hochempfindliche Technologie einen nennenswerten Nachteil, da sie flüchtige Komponenten ausschließlich in der Gasphase detektieren kann.
openaire   +1 more source

Calculation of the sensitivity of proton-transfer-reaction mass spectrometry (PTR-MS) for organic trace gases using molecular properties

, 2017
K. Sekimoto, Shao-Meng Li, Bin Yuan, A. Koss, M. Coggon, C. Warneke, J. Gouw   +6 more
semanticscholar   +1 more source