scholarly journals Effect of adding essential oils of caraway and rosemary on volatile aroma compounds derived from stored vacuum packaged minced turkey meat

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Magdalena Michalczyk ◽  
Paweł Satora ◽  
Joanna Banaś ◽  
Grzegorz Fiutak
Keyword(s):  
Beneficial Effect ◽  
Essential Oils ◽  
Solid Phase ◽  
Control Sample ◽  
Acid Value ◽  
Fat Oxidation ◽  
Viable Count ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Viable Count ◽  
Turkey Meat

AbstractChanges in the odor of meat during its storage are one of the basic indicators affecting its assessment and possible disqualification. The aim of the study was to determine whether the addition of essential oils may affect the composition and concentration of volatile compounds included in the aroma of stored turkey meat. We investigated the effect of adding essential oil (EO) of caraway (0.02% v/w), rosemary (0.02% v/w) and a mixture of the two (0.01% each) on the composition of volatile compound fractions formed during 10-day storage of vacuum-packed minced turkey meat. The EOs used were also evaluated for their influence on microbial contamination (total viable count and lactic acid bacteria count), sensory quality (odor and taste) and the level of fat oxidation (acid value, peroxide value and p-anisidine value) and pH in chill-stored samples. In terms of sensory indicators, the greatest beneficial effect of adding oils was noted in the odor of raw meat. Use of the HS-SPME/GC-MS (headspace-solid phase microextraction/gas chromatography-mass spectrometry) method showed that the addition of oils significantly reduced the amounts of benzeneacetaldehyde, 2-octenal and ethyl 2-methyloctanoate compared with the control sample. In addition, in the presence of essential oils of rosemary and caraway, decreases were noted in benzaldehyde and 9-octadecenal, respectively. These changes may potentially affect the reception of the odor. There was a beneficial effect of the oils in reducing the levels of fat oxidation indicators, including peroxide. However, the oils at applied concentrations had no significant effect on the total viable count and LAB count.

scholarly journals Detection and Identification of Antibacterial and Antioxidant Components of Essential Oils by TLC-Biodetection and GC-MS

2016 ◽  
Vol 11 (11) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Ágnes M. Móricz ◽  
Györgyi Horváth ◽  
Andrea Böszörményi ◽  
Péter G. Ott
Keyword(s):  
Essential Oils ◽  
Solid Phase ◽  
Radical Scavenging ◽  
Gas Chromatography Mass Spectrometry ◽  
Cinnamon Bark ◽  
Scavenging Effect ◽  
Detection And Identification ◽  
Radical Scavenging Effect ◽  
Direct Bioautography ◽  
Layer Chromatography

Components of cinnamon bark, rosemary, clove and thyme essential oils were screened for antioxidant and antibacterial activity utilizing thin-layer chromatography (TLC) coupled with the DPPH• test and direct bioautography using Bacillus subtilis cells. The compounds in the active chromatographic zones were identified by solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) after their elution. Seven antibacterial components were found: cinnamaldehyde and eugenol in cinnamon bark oil, 1,8-cineole, camphor, borneol and α-terpineol in rosemary oil, eugenol in clove oil and thymol in thyme oil. Only two of them, thymol and eugenol displayed a free radical scavenging effect.

scholarly journals Colombian fusel oil

2016 ◽  
Vol 36 (2) ◽  
pp. 21 ◽  
Author(s):  
Natalia Montoya ◽  
Jairo Durán ◽  
Fernando Córdoba ◽  
Iván Darío Gil ◽  
Carlos Alexander Trujillo ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Physicochemical Properties ◽  
Solid Phase ◽  
Value Added ◽  
Acid Value ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Fusel Oil ◽  
Complementary Techniques ◽  
Main Components

By-products valorization in bio-fuels industry is an important issue for making the global process more efficient, more profitable and closer to the concept of biorefinery. Fusel oil is a by-product of bioethanol production that can be considered as an inexpensive and renewable raw material for manufacturing value-added products. In this work, results in terms of composition and physicochemical properties of six samples of fusel oil from industrial alcohol facilities are presented. Composition of the main components was established by gas chromatography. Complementary techniques, such as headspace solid-phase microextraction and gas chromatography–mass spectrometry (GC-MS), were used for detection of minor components. Fifty-five compounds were identified. Physicochemical properties such as density, acid value, moisture content and true boiling point curves were determined. Results are useful in the conceptual design of separation strategies for recovering higher alcohols, as well as to consider new options of valorization alternatives for fusel oil.

scholarly journals Chemical composition and antinociceptive activity of volatile fractions of the aerial parts of Solidago chilensis (Compositae)

Rodriguésia ◽  
2020 ◽  
Vol 71 ◽  
Author(s):  
Simone Sacramento Valverde ◽  
Stefânia Priscilla de Souza ◽  
Temistocles Barroso de Oliveira ◽  
Andressa Maia Kelly ◽  
Nathalia Ferreira Costa ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Antinociceptive Effect ◽  
Antinociceptive Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Aerial Parts ◽  
Germacrene D ◽  
Solidago Chilensis

Abstract Thirty-six compounds were identified from aerial parts of Solidago chilensis cultivated at PAF/FIOCRUZ campus in Rio de Janeiro city (RJ) using solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) analysis. These compounds are mainly non-oxygenated mono and sesquiterpenes. Germacrene D is the major compound of two the essential oil analyzed samples (12 to 23%) and of two of the volatiles samples analyzed by SPME (central stems and dry inflorescences samples). Limonene is the major compound in the fresh inflorescences sample (about 21%). The bornil acetate is present in both volatile fractions (16%) and essential oils (7-8%). All the essential oils samples evaluated shown a great antinociceptive activity, considering the used dose of the samples (1 mg/kg) and the standard substance (50 mg/kg). Solidago chilensis is one of Brazil arnicas and it is a medicinal plant widely used by the brazilian population. Other plants of the genus Solidago are also used in traditional medicine in North America and Europe. This is the first report of SPME analysis from Solidago genus and of the antinociceptive effect from Solidago chilensis essential oil.

QUALITY CONTROL OF ZINGIBER OFFICINALE OILS IN PRODUCT FORMULATIONS

2015 ◽  
Vol 77 (3) ◽  
Author(s):  
Nurhazwani Mohd Hirmizi ◽  
Saidatul Husni Saidin ◽  
Nor Azah Mohamad Ali ◽  
Azrina Aziz ◽  
Mailina Jamil ◽  
...  
Keyword(s):  
Essential Oils ◽  
Ph Value ◽  
Solid Phase ◽  
Chemical Constituents ◽  
Skin Irritation ◽  
Zingiber Officinale ◽  
Gas Chromatography Mass Spectrometry ◽  
Limit Test ◽  
Main Components

Zingiber officinale (ginger) is one of the most commonly used flavouring ingredients in food and culinary dishes. The essential oils are known for its unique aroma and characteristic and widely used as therapy. In this study, the essential oil was formulated as massage oil and the quality of massage oil was evaluated on its physicochemical properties, i.e. colour, odour, density, viscosity, refractive index and pH value. The efficacy of the product was determined by the value of the melanin (coloured pigment) and erythema (redness of skin) as well skin irritation analysis (Finn Chamber Patch). The massage oil was also tested using Head Space-Solid Phase Microextraction-Gas Chromatography Mass Spectrometry (HS-SPME-GCMS) to determine the presence of ginger’s essential oils important chemical constituents in the massage oil. Analysis revealed the presence of a-zingiberene, neral and geranial which are the main components found in ginger massage oil. For safety use, the finished product was tested for microbial enumeration test and heavy metal analysis. Result showed that there was no microbial contamination and meets the British Pharmacopoeia 2011 specifications in topical use. Meanwhile the results of limit test for heavy metals were found to be below detectable levels of National Pharmaceutical Control Bureau specifications.

scholarly journals Chemical Composition of Essential Oils from Different Parts of Zingiber kerrii Craib and Their Antibacterial, Antioxidant, and Tyrosinase Inhibitory Activities

Biomolecules ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 228 ◽  
Author(s):  
Aknarin Pintatum ◽  
Surat Laphookhieo ◽  
Emilie Logie ◽  
Wim Vanden Berghe ◽  
Wisanu Maneerat
Keyword(s):  
Essential Oils ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Phenolic ◽  
Frap Assay ◽  
Antioxidant Power ◽  
Diammonium Salt ◽  
Ic50 Values ◽  
Weak Antibacterial Activity ◽  
Hacat Cell Lines

The essential oils of the fresh rhizomes; flowers; and leaves of Zingiber kerrii Craib were investigated using different extraction techniques; including solid-phase microextraction (SPME), hydrodistillation (HD), and organic solvent (OS), and characterized by gas chromatography–mass spectrometry (GC–MS). A total of 37 SPME; 19 HD; and 36 OS compounds were identified from the rhizome extract of Z. kerrii; with the major components being α-pinene; β-pinene; and terpinen-4-ol; respectively. From the flower extract; 16 SPME; 2 HD; and 10 OS compounds were identified; (E)-caryophyllene was found as a major compound by these techniques. The leaf extract exhibited 20 SPME; 13 HD; and 14 OS compounds; with α-pinene; (E)-caryophyllene; and n-hexadecanoic acid being the major compounds; respectively. The rhizome extract showed tyrosinase inhibitory activity of 71.60% and a total phenolic content of 22.4 mg gallic acid/g. The IC50 values of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays were 25.2 µg/mL and 153.6 µg/mL; respectively; and the ferric ion reducing antioxidant power (FRAP) assay value was 318.5 µM ascorbic acid equivalent (AAE)/g extract. The rhizome extract showed weak antibacterial activity. This extract showed no adverse toxicity in human keratinocyte (HaCaT) cell lines at concentrations below 200 µg/mL.

Rapid analysis of essential oils in fruits of Alpinia oxyphylla Miq. by microwave distillation and simultaneous headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry

2014 ◽  
Vol 6 (24) ◽  
pp. 9718-9724 ◽  
Author(s):  
Dan Wu ◽  
Kun Chen ◽  
Mei Xu ◽  
Guoxin Song ◽  
Yaoming Hu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Rapid Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Plant Materials ◽  
Alpinia Oxyphylla ◽  
Microwave Distillation

A fast, solvent-free method for determining essential oils in fruits of Alpinia oxyphylla Miq. and, potentially, other plant materials.

scholarly journals Chemical Composition and Antimicrobial Activity of Essential Oil from Phytolacca dodecandra Collected in Ethiopia

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 342 ◽  
Author(s):  
Wondwosen Matebie ◽  
Wanchang Zhang ◽  
Guangbo Xie
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Solid Phase ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Microdilution Method ◽  
Phytolacca Dodecandra ◽  
The Difference

The essential oil from Phytolacca dodecandra, a traditional herb of Ethiopia, has been studied, including the chemical composition and antimicrobial activity. The difference between four P. dodecandra samples (P-1–P-4), which differed in gender or location, has also been analyzed. The essential oils were obtained by steam distillation, while the aromas were extracted by head space solid-phase microextraction (HS-SPME) and both were analyzed by gas chromatography- mass spectrometry (GC-MS). The oils’ antimicrobial activities were evaluated by the microdilution method against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Candida albicans. Ninety one components, representing 88.37 to 94.01% of the aromas, were identified. The compositions of the aromas of four samples are mainly dominated by aldehydes and ketones: 2-nonanone (1.80–30.80%), benzaldehyde (4.99–25.99%), and sulcatone (2.34–5.87%). Sixty components representing 64.61 to 69.64% of the oils were identified, and phytone (3.04–21.23%), phytol (4.11–26.29%) and palmitic acid (1.49–23.87%) are the major compounds. No obvious antimicrobial activity was observed for all the four essential oils.

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