scholarly journals Simple and Rapid Analysis for Quantitation of the Most Important Volatile Flavor Compounds in Yogurt by Headspace Gas Chromatography-Mass Spectrometry

2001 ◽  
Vol 39 (7) ◽  
pp. 297-300 ◽  
Author(s):  
L. Alonso ◽  
M. J. Fraga
2011 ◽  
Vol 396-398 ◽  
pp. 1570-1574 ◽  
Author(s):  
Yong Zuo ◽  
Shuai Ju ◽  
Li Ping Liu ◽  
Yang Li ◽  
Hui Xie

Simultaneous distillation and extraction (SDE), Gas chromatography-mass spectrometry (GC-MS) are used to analyze the volatile flavor compounds of bean sprouts, which are fermented with composite strains of different compatibility .The results showed that bean sprouts fermented by compound bacteria AN1: AE produced maximum flavor compounds. The number of the flavor compounds is 22, of which 5 were alcohols, 11 were esters and 6 others. Combined with organoleptic investigation, compound bacteria AN1: AE were preliminarily picked up as the best fermentation strain of bean sprouts


2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Yinzheng Ma ◽  
Yingying Wen ◽  
Jinping Chen ◽  
Yunxia Zhang ◽  
Haiying Zhang ◽  
...  

AbstractA rapid and sensitive headspace gas chromatography-mass spectrometry (HS-GC–MS) method was established for the determination of benzyl isothiocyanate (BITC) in the peel, pulp, and seeds of Carica papaya Linn. Tween 80 solution with a concentration of 0.002% (w/v) was chosen as a headspace medium for solving the poor solubility of BITC in water without using organic solvents and ensuring high headspace efficiencies. Extraction parameters had been evaluated and optimized by using an orthogonal design with an OA9(34) table. Optimal headspace conditions were obtained when vials were equilibrated at 80 °C for 20 min at a stirring speed of 375 rpm. The calibration curve obtained by using GC–MS was linear in a concentration range of 10–320 ng/mL. The recoveries of peel, pulp, and seeds ranged from 97.3 to 100.6% with RSDs less than 3.0%. The method is simple, rapid, sensitive, and environmentally friendly. It is suitable for analyzing BITC in papaya fruit and is expected to have important application potential in the extraction of water-insoluble volatile components in foods, plants, medicines, and other samples.


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