Solid-phase microextraction-gas chromatography and ultra-high performance liquid chromatography applied to the characterization of lemon wax, a waste product from citrus industry

2019 ◽  
Vol 1603 ◽  
pp. 262-268 ◽  
Author(s):  
Rosaria Costa ◽  
Ambrogina Albergamo ◽  
Sara Arrigo ◽  
Fausto Gentile ◽  
Giacomo Dugo
Keyword(s):  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solid Phase Microextraction ◽  
High Performance ◽  
Solid Phase ◽  
Waste Product ◽  
Citrus Industry

scholarly journals Analysis of Caffeine, Chlorogenic Acid, Trigonelline, and Volatile Compounds in Cold Brew Coffee Using High-Performance Liquid Chromatography and Solid-Phase Microextraction—Gas Chromatography-Mass Spectrometry

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1746
Author(s):  
JeongAe Heo ◽  
Koushik Adhikari ◽  
Kap Seong Choi ◽  
Jeehyun Lee
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Chlorogenic Acid ◽  
Volatile Compounds ◽  
Solid Phase Microextraction ◽  
High Performance ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry

This study investigated the non-volatile and volatile compounds in samples of cold brew (CB) coffee, coffee from a coffee shop (CS), ready-to-drink (RTD) coffee, and brewed coffee from a coffee maker (CM). The volatile compounds were identified using headspace solid-phase microextraction with gas chromatography-mass spectrometry, and the samples were treated with high-performance liquid chromatography for the quantification of caffeine, chlorogenic acid, and trigonelline. The results indicate that RTD coffee had the lowest amounts of non-volatile compounds. A total of 36 volatile compounds were semi-quantified; the contents of most volatile compounds in CS and Folgers samples were higher than those in CB and CM samples. The contents of 25 volatile compounds in the CM sample were higher than those in the CB sample. The consumer and instrumental data show that the bitterness intensity was correlated with pyrazines, pyrroles, and guaiacols, whereas the coffeeID intensity was correlated with phenols. Semi-quantification and principal component analysis results show that the extraction method and temperature could influence the volatile compound profiles.

Carbon aerogel as a solid-phase microextraction fiber coating for the extraction and detection of trace tetracycline residues in food by coupling with high-performance liquid chromatography

2021 ◽  
Author(s):  
Zong-Mu Dong ◽  
Lu Cheng ◽  
Tong Sun ◽  
Guang-Chao Zhao ◽  
Xianwen Kan
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solid Phase Microextraction ◽  
High Performance ◽  
Solid Phase ◽  
Carbon Aerogel ◽  
Performance Parameters ◽  
Fiber Coating ◽  
Tetracycline Residues ◽  
Tetracycline Detection

An efficient SPME method using the carbon aerogel as fiber coating was developed for tetracycline detection, and the performance parameters of the analysis are optimized via the BBD software.

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