scholarly journals Gas Chromatography-Mass Spectrometry Analysis ofUlva fasciata(Green Seaweed) Extract and Evaluation of Its Cytoprotective and Antigenotoxic Effects

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Idania Rodeiro ◽  
Sitlali Olguín ◽  
Rebeca Santes ◽  
José A. Herrera ◽  
Carlos L. Pérez ◽  
...  

The chemical composition and biological properties ofUlva fasciataaqueous-ethanolic extract were examined. Five components were identified in one fraction prepared from the extract by gas chromatography-mass spectrometry, and palmitic acid and its ethyl ester accounted for 76% of the total identified components. Furthermore, we assessed the extract’s antioxidant properties by using the DPPH, ABTS, and lipid peroxidation assays and found that the extract had a moderate scavenging effect. In an experiment involving preexposition and coexposition of the extract (1–500 µg/mL) and benzo[a]pyrene (BP), the extract was found to be nontoxic to C9 cells in culture and to inhibit the cytotoxicity induced by BP. As BP is biotransformed by CYP1A and CYP2B subfamilies, we explored the possible interaction of the extract with these enzymes. The extract (25–50 µg/mL) inhibited CYP1A1 activity in rat liver microsomes. Analysis of the inhibition kinetics revealed a mixed-type inhibitory effect on CYP1A1 supersome. The effects of the extract on BP-induced DNA damage and hepatic CYP activity in mice were also investigated. Micronuclei induction by BP and liver CYP1A1/2 activities significantly decreased in animals treated with the extract. The results suggest thatUlva fasciataaqueous-ethanolic extract inhibits BP bioactivation and it may be a potential chemopreventive agent.

Author(s):  
KALAIMAGAL C

Objective: Herbs are a key resource with therapeutic properties. Nowadays, there is a focus on the identification of bioactive compounds with the ability to act against various disorders. Methods: In the present study, gas chromatography–mass spectrometry analysis was conducted to determine the occurrence of different phytochemical compounds in ethanolic flower extract of Tabernaemontana divaricata (L.). Results: The ethanol extract of flower revealed the presence of several bioactive compounds such as n-hexadecanoic acid, squalene, Vitamin D3, Vitamin A aldehyde, desulfosinigrin, and Urs-12-en-24-oic acid, 3-oxo-, methyl ester, (+)-. Conclusion: The perceived compounds from ethanolic extract of flower have diverse beneficial properties such as antimicrobial, antioxidant, cancer anticipatory effect, pesticide, and antiarthritic.


Author(s):  
Dhivya S M ◽  
Kalaichelvi K

ABSTRACTObjective: To explore the phytochemical constituents present in Sarcostemma brevistigma using gas chromatography-mass spectrometry (GC-MS).Methods: Preliminary phytochemical analysis of secondary metabolites was made by following standard procedures. GC-MS analysis of the plantextracts was performed by using GC-MS equipped with a DB-35MS capillary standard non-polar column and gas chromatograph interfaced to a MassSelective Detector (MS-DSQ-II) with Xcalibur software.Results: The qualitative phytochemical analysis of this species exhibited the presence of alkaloids, glycosides, flavonoids, phenols, steroids, aminoacids, tannins, terpenoids, quinones, and coumarin. The GC-MS analysis revealed the presence of 24 compounds in the ethanolic extract of aerial partof Sarcostemma brevistigma. The most prevailing compound was 14,17 bis(dimethylaminoamino)[3.3]paracyclophan-5,8-diacetonitrile (14.86%).Conclusion: The study concludes that the species Sarcostemma brevistigma is a potential source for bioactive compounds such as esters, alkanes,alcohols, alkenes, amide, amine, phenol, ketone, and so forth. This study justifies the traditional usage of this species.Keywords: Gas chromatography-mass spectrometry, Sarcostemma brevistigma, Phytochemical compounds, Medicinal plants.


Author(s):  
Susheela P ◽  
Rosaline Mary ◽  
Radha R

Objective: The objective of the present study was to determine the chemical compounds present in the nests of the mud dauber wasp, Sceliphron caementarium.Methods: Gas chromatography-mass spectrometry analysis of the nest samples was carried out by standard procedures. The resultant compounds were compared with the database of the National Institute Standard and Technology (NIST), WILEY8, FAME.Results: The results of the gas chromatography-mass spectrometry analysis of the concentrated ethanol extract revealed the presence of chemical compounds such as methylene chloride, 1, 1’:3’, 1’’-Terphenyl, 5’-Phenyl, Di N Decylsulfone, Eicosanoic acid, 1, 2-Bis (Trimethylsilyl) Benzene, and Androstane-11, 17-Dione, 3-[(Trimethylsilyl) Oxy]-, 17-[O-(Phenylmethyl) O.Conclusion: The compounds identified were found to have biological properties such as anti-inflammatory, antibacterial, and antifungal, and further study of these isolated compounds may prove their medicinal importance in future.


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2667
Author(s):  
Kaisa Raninen ◽  
Ringa Nenonen ◽  
Elina Järvelä-Reijonen ◽  
Kaisa Poutanen ◽  
Hannu Mykkänen ◽  
...  

Exhaled breath is a potential noninvasive matrix to give new information about metabolic effects of diets. In this pilot study, non-targeted analysis of exhaled breath volatile organic compounds (VOCs) was made by comprehensive two-dimensional gas chromatography–mass spectrometry (GCxGC-MS) to explore compounds relating to whole grain (WG) diets. Nine healthy subjects participated in the dietary intervention with parallel crossover design, consisting of two high-fiber diets containing whole grain rye bread (WGR) or whole grain wheat bread (WGW) and 1-week control diets with refined wheat bread (WW) before both diet periods. Large interindividual differences were detected in the VOC composition. About 260 VOCs were detected from exhaled breath samples, in which 40 of the compounds were present in more than half of the samples. Various derivatives of benzoic acid and phenolic compounds, as well as some furanones existed in exhaled breath samples only after the WG diets, making them interesting compounds to study further.


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