Analysis of Volatile Flavor Compounds in Huizhou Preserved Vegetable by GC-MS

2011 ◽  
Vol 140 ◽  
pp. 258-262
Author(s):  
Yu Ping Liu ◽  
Zhi Wei Miao ◽  
Jun Kai Yang ◽  
Wei Guan ◽  
Bao Guo Sun
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Dimethyl Disulfide ◽  
Ethyl Benzoate ◽  
Flavor Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Simultaneous Distillation Extraction ◽  
Aroma Characteristics

The volatile flavor compounds of Huizhou preserved vegetable were extracted by hydrodistillation (HD) and simultaneous distillation-extraction (SDE). The essential oils obtained were analyzed by gas chromatography-mass spectrometry, accompanying by comparison of the retention time of authentic samples and by calculation of retention index about the separated constituents. 50 volatile flavor compounds were identified in the essential oils of Huizhou preserved vegetable obtained by HD and SDE in all. 41 compounds were identified in the essential oil from HD and 36 compounds identified in the essential oil from SDE. The constituents which are very important to the odor of Huizhou preserved vegetable include 3-hydroxy-2-butanone, dimethyl disulfide, hexanal, furfural, 2-furanmethanol, 2-methylbutanoic acid, benzeneacetaldehyde, phenylethyl alcohol, 5-ethyldihydro-2(3H)-furanone, 5-pentyl-dihydro-2(3H)-furanone, etc. The exclusive compounds in the essential oil gained by HD consist of hexanol, heptanol, 1-(2-furanyl)-ethanone, 5-methyl-dihydro-2(3H)-furanone, benzaldehyde, phenol, benzyl alcohol, methyl benzoate, ethyl benzoate. The exclusive compounds obtained by SDE are 3-hydroxy-2-butanone, dimethyl trisulfide,trans-2-(2-pentenyl)-furan, camphor, vanillin, etc. The differences result in the two essential oils with a few distinctions on aroma characteristics.

Analysis of Volatile Compounds in Bean Sprout by Simultaneous Distillation Extraction and Gas Chromatography-Mass Spectrometry

2011 ◽  
Vol 396-398 ◽  
pp. 1570-1574 ◽  
Author(s):  
Yong Zuo ◽  
Shuai Ju ◽  
Li Ping Liu ◽  
Yang Li ◽  
Hui Xie
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Volatile Compounds ◽  
Flavor Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Flavor Compounds ◽  
Chromatography Mass Spectrometry ◽  
Volatile Flavor ◽  
Simultaneous Distillation Extraction ◽  
Bean Sprouts

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

scholarly journals Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 483 ◽  
Author(s):  
Xiao Guan ◽  
Depeng Ge ◽  
Sen Li ◽  
Kai Huang ◽  
Jing Liu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Salmonella Enteritidis ◽  
Antimicrobial Activities ◽  
Inhibitory Effect ◽  
Gas Chromatography Mass Spectrometry ◽  
High Yield ◽  
Agar Disc ◽  
Artemisia Argyi ◽  
Simultaneous Distillation Extraction

Artemisia argyi Lévl. et Vant essential oil could be used as a good antimicrobial flavouring agent and applied in the food industry. In this study, three methods, including simultaneous distillation-extraction (SDE), subcritical extraction and hydrodistillation, were applied to extract A. argyi essential oil. Compared with subcritical extraction (1%) and hydrodistillation (0.5%), SDE gave a higher yield (1.2%). Components of the essential oils were analysed with gas chromatography-mass spectrometry (GC-MS), and the most abundant ingredients were caryophyllene oxide, neointermedeol, borneol, α-thujone and β-caryophyllene. These five components accounted for 82.93%, 40.90% and 40.33% for SDE, subcritical extraction, and hydrodistillation, respectively. Based on agar disc diffusion and minimum inhibitory concentration (MIC) assays, SDE oil showed a significant inhibitory effect towards Listeria monocytogenes, Escherichia coli, Proteus vulgaris, Salmonella enteritidis and Aspergillus niger. Furthermore, electron microscope observations (SEM) confirmed that SDE oil could obviously deform cell morphology and destroy the structure of cell walls. Performances showed that SDE was a promising process for extracting A. argyi essential oil with both high yield and antimicrobial activity.

scholarly journals Production and analysis of volatile flavor compounds in sweet fermented rice (Khao Mak)

2018 ◽  
Vol 192 ◽  
pp. 03044
Author(s):  
Jittimon Wongsa ◽  
Vilai Rungsardthong ◽  
Tamaki Yasutomo
Keyword(s):  
Starter Culture ◽  
Acid Ethyl Ester ◽  
Soluble Solids ◽  
Flavor Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Rice Varieties ◽  
Total Soluble Solids ◽  
Volatile Flavor Compounds ◽  
Glutinous Rice ◽  
Volatile Flavor

Khao Mak is a sweet fermented rice-based dessert with a unique flavor profile commonly found throughout Thailand. The traditional starter culture (Look Pang) contains yeast, mold and herbs, which is used to ferment cooked glutinous rice. This research studied production of Khao Mak which resulted in volatile flavor compounds that were affected by rice varieties, including white glutinous rice (Kor Khor 6), Japanese rice (Hitomebore) and black glutinous rice (Kam Doi and Leum Phua). Total soluble solids (TSS) as degree Brix, pH, and alcohol concentrations were measured daily during the fermentation period. Volatile flavor compounds were separated and identified by gas chromatography mass spectrometry (GC-MS). At the end of the fermentation, samples had pH ranging from 3.91±0.16 to 4.30±0.09, total soluble solids of 32.65±1.65 to 44.02±1.72°Brix, and alcohol concentrations between 0.33±0.03 and 0.38±0.03% (v/v). The potent odors associated with Khao Mak were alcohol, wine-like, whiskey-like, solvent-like, sweet and fruity. The major volatile compounds, which have stimulant flavor in Khao Mak, included 1-propanal, 1-propanol-2-methyl, 1-butanal-3-methyl and acetic acid ethyl ester. Among all rice varieties tested, the white glutinous rice produced Khao Mak containing the highest TSS, alcohol concentrations followed by Hitomebore rice and black glutinous rice, respectively.

scholarly journals Composition and diurnal variation of floral scent emission in Rosa rugosa Thunb. and Tulipa gesneriana L.

2020 ◽  
Vol 18 (1) ◽  
pp. 1030-1040
Author(s):  
Lu Yang ◽  
Xiang Liao ◽  
Ping Cheng ◽  
Zhi-Gang Zhang ◽  
Hong Li
Keyword(s):  
Diurnal Variation ◽  
Methylene Chloride ◽  
Floral Scent ◽  
Flavor Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Rosa Rugosa ◽  
Tulipa Gesneriana ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Main Components

AbstractThis study was aimed to explore the composition and diurnal variation analyses of floral scent emission from Rosa rugosa Thunb. and Tulipa gesneriana L. The floral scent from the fresh flower were collected at different time points (9:00, 12:00, 15:00, 18:00, and 21:00) using dynamic headspace collection and were analyzed using autothermal desorber-gas chromatography/mass spectrometry (ATD-GC/MS). The results showed that a total of 62 volatile flavor compounds were detected from Rosa rugosa Thunb and a total of 70 volatile flavor compounds were detected from Tulipa gesneriana L. They were identified with eight functional categories: alcohols, fatty hydrocarbons, terpenes, aldehydes, ketones, esters, and other substances. The total release amount first decreased, and then increased with time, and arrived at the lowest at 15:00. The release amounts of different categories present distinct change patterns. Among the components, phenylethyl alcohol, citronellol, methylene chloride, hexane, and acetone showed relatively higher release amounts and were thought as the main components in floral scent of Rosa rugosa Thunb. Alpha-Farnesene, ethanol, pentadecane, beta-ocimene, longifolene, caryophyllene, and acetone showed relatively higher release amounts and were thought as the main components in floral scent of Tulipa gesneriana L. Research of roses and tulips in aromatic in the garden provides a theoretical basis and research and improvement of the aroma components of aroma.

scholarly journals Evolution Analysis of Free Fatty Acids and Aroma-Active Compounds during Tallow Oxidation

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 352
Author(s):  
Shiqing Song ◽  
Feiting Zheng ◽  
Xiaoyan Tian ◽  
Tao Feng ◽  
Lingyun Yao ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Flavor Compounds ◽  
Least Squares Regression ◽  
Active Compounds ◽  
Volatile Flavor Compounds ◽  
Evolution Analysis ◽  
Volatile Flavor ◽  
Flavor Precursors ◽  
Aroma Characteristics ◽  
Odor Activity Value

To explore the role of fatty acids as flavor precursors in the flavor of oxidized tallow, the volatile flavor compounds and free fatty acid (FFAs) in the four oxidization stages of tallow were analyzed via gas chromatography (GC)–mass spectrometry (MS), the aroma characteristics of them were analyzed by GC–olfactory (GC-O) method combined with sensory analysis and partial least-squares regression (PLSR) analysis. 12 common FFAs and 35 key aroma-active compounds were obtained. Combined with the results of odor activity value (OAV) and FD factor, benzaldehyde was found to be an important component in unoxidized tallow. (E,E)-2,4-Heptadienal, (E,E)-2,4-decadienal, (E)-2-nonenal, octanal, hexanoic acid, hexanal and (E)-2-heptenal were the key compounds involved in the tallow flavor oxidation. The changes in FFAs and volatile flavor compounds during oxidation and the metabolic evolution of key aroma-active compounds are systematically summarized in this study. The paper also provides considerable guidance in oxidation control and meat flavor product development.

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