« Previous AbstractSakuranetin protects rice from brown planthopper attack by depleting its beneficial endosymbionts    Next AbstractRevelation of volatile contributions in green teas with different aroma types by GC-MS and GC-IMS »

Food Chem

Title:		Portraying and tracing the impact of different production systems on the volatile organic compound composition of milk by PTR-(Quad)MS and PTR-(ToF)MS
Author(s):		Liu N; Koot A; Hettinga K; de Jong J; van Ruth SM;
Address:		"Wageningen University and Research, RIKILT Wageningen Research/Food Quality and Design Group, P.O. Box 230, 6700 AE Wageningen, The Netherlands. Wageningen University and Research, RIKILT Wageningen Research/Food Quality and Design Group, P.O. Box 230, 6700 AE Wageningen, The Netherlands. Electronic address: saskia.vanruth@wur.nl"
Journal Title:		Food Chem
Year:		2018
Volume:		20170620
Issue:
Page Number:		201 - 207
DOI:		10.1016/j.foodchem.2017.06.099
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"The aim of this study was to discover the unique volatile compositional traits of retail milk from different production systems. Forty-four retail milk samples were analyzed, including organic milk (n=10), conventional milk (n=14) and pasture milk (n=20) from winter (n=22) and summer (n=22). Proton transfer reaction quadrupole mass spectrometry (PTR-(Quad)MS) was utilized to obtain the mass-resolved fingerprints (76 masses per sample) of volatile organic compounds (VOCs). Principal component analysis (PCA) and analysis of variance (ANOVA) were performed to evaluate the differences between the groups. The production systems were characterized by six masses, while season showed larger differences, with twenty-two masses discriminating between the milks. For 2 masses, a significant interaction of systems and seasons was observed. The chemical formula of these VOC masses were tentatively identified by Proton Transfer Reaction Time-of-Flight Mass Spectrometric (PTR-(ToF)MS). These results illustrate that the type of feed is reflected in the VOC composition of milks"
Keywords:		Animals Mass Spectrometry *Milk Protons Spectrum Analysis Volatile Organic Compounds Organic milk PTR-(Quad)MS PTR-(ToF)MS Voc;
Notes:		"MedlineLiu, Ningjing Koot, Alex Hettinga, Kasper de Jong, Jacob van Ruth, Saskia M eng England 2017/09/07 Food Chem. 2018 Jan 15; 239:201-207. doi: 10.1016/j.foodchem.2017.06.099. Epub 2017 Jun 20"