Results 81 to 90 of about 25,474 (251)

Quantification of Volatile Compounds in Wines by HS-SPME-GC/MS: Critical Issues and Use of Multivariate Statistics in Method Optimization

open access: yesProcesses, 2021
The aim of this review is to explore and discuss the two main aspects related to a HeadSpace Solid Phase Micro-Extraction Gas-Chromatography/Mass-Spectrometry (HS-SPME-GC/MS) quantitative analysis of volatile compounds in wines, both being fundamental to
S. Pati   +5 more
semanticscholar   +1 more source

From freshness to preservation: insights into processing and storage impacts on purple passion fruit volatilome

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 4, Page 2139-2153, 15 March 2026.
Abstract BACKGROUND Purple passion fruit is highly appreciated for its distinctive sweet flavour, low acidity, and aromatic profile, making it a desirable choice for fresh consumption and juice production. To ensure microbiological safety and extend shelf life, juice products typically undergo thermal pasteurization, which can alter their ...
Alexandre MA Fonseca   +4 more
wiley   +1 more source

Analyzing Free-Base Nicotine Content in the Particulate Matter of Mainstream Tobacco Smoke Using a Headpace Solid-Phase Microextraction GC/MS Method [PDF]

open access: yes, 2015
The acid/base chemistry of cigarette smoke allows nicotine, the primary drug in mainstream tobacco smoke, to exist in protonated and free-base forms. Evidence suggests that most of the nicotine present in mainstream tobacco smoke is in the particle phase.
Motti, Christopher S.
core   +1 more source

Application of highly carboxylate resins in aqueous emulsion for leather coating avoiding the use of isopropyl alcohol [PDF]

open access: yes, 2016
Today, the first stages of the finishing processes of buffed cattle hides or full loose grain – known as impregnation – are largely carried out with acrylic resins and penetrating agents (typically, a mixture of surfactants and solvents).
Bacardit Dalmases, Anna   +4 more
core   +3 more sources

Microwave‐Assisted Recycling of Lithium‐Ion Batteries: Linking Process Optimization to Volatile Organic Compounds and Fluorinated Gases Emission Mitigation

open access: yesBattery Energy, Volume 5, Issue 2, March 2026.
Microwave‐assisted recycling of black mass from spent lithium‐ion batteries was optimized through a Design of Experiments approach, linking heating parameters to lithium recovery efficiency and volatile emissions. Combining GC–MS and multinuclear NMR analyses, the study identifies key conditions minimizing hazardous fluorinated and organic gas ...
Alberto Mannu   +7 more
wiley   +1 more source

Analysis of Five Earthy-Musty Odorants in Environmental Water by HS-SPME/GC-MS [PDF]

open access: yesInternational Journal of Analytical Chemistry, 2014
The pressing issue of earthy and musty odor compounds in natural waters, which can affect the organoleptic properties of drinking water, makes it a public health concern. A simple and sensitive method for simultaneous analysis of five odorants in environmental water was developed by headspace solid-phase microextraction (HS-SPME) coupled to ...
Zhen Ding   +5 more
openaire   +3 more sources

Assessment of Metabolites in Noni Fruit Slurry Fermented With Four Non‐Saccharomyces Yeasts

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
Dried noni fruit slurry (DNFS) was fermented for 14 days with selected non‐Saccharomyces yeasts. GCMS, HPLC and amino acid analysis showed that Pichia kluyveri Frootzen and Williopsis saturnus NCYC22 grew well, reduced off‐flavor fatty acids, generated fruity aroma compounds and preserved total phenolic content. ABSTRACT Noni products often suffer from
Zhuoran Zhang, Shao Quan Liu, Yuyun Lu
wiley   +1 more source

Characterization of volatile compounds in pickled and dried mustard (Brassica juncea, Coss.) using optimal HS-SPME-GC-MS

open access: yesCyTA - Journal of Food, 2018
Pickled and dried mustard (PDM; Brassica juncea, Coss) is a traditional fermented vegetable product that is widely consumed as a food ingredient with aromatic flavour in China.
Qing Shen   +7 more
doaj   +1 more source

Headspace - SPME as a screening system for yeast metabolic compounds: a case study [PDF]

open access: yes, 2008
Aim: This study aimed to identify and quantify the fusel alcohols secreted by the opportunistic yeasts Candida albicans and Candida dubliniensis to further get insights into the amino acid catabolism of those two organisms.
Azeredo, Joana   +3 more
core  

Comparative Analysis of the Volatile Profile of 20 Commercial Samples of Truffles, Truffle Sauces, and Truffle-Flavored Oils by Using HS-SPME-GC-MS

open access: yes, 2017
The aroma profile of raw truffles, of truffle sauces, and of natural and artificial truffle flavored oils made from or made to imitate Tuber magnatum, Tuber melanosporum, and Tuber aestivum was characterized by solid-phase microextraction-gas ...
Caprioli, Giovanni   +5 more
core   +1 more source

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