Isolation and identification of volatile compounds from fried chicken

1983 ◽  
Vol 31 (6) ◽  
pp. 1287-1292 ◽  
Author(s):  
Jian Tang ◽  
Qi Zhang Jin ◽  
Guo Hui Shen ◽  
Chi Tang Ho ◽  
Stephen S. Chang
1967 ◽  
Vol 44 (1) ◽  
pp. 26-29 ◽  
Author(s):  
Pio Angelini ◽  
D. A. Forss ◽  
M. L. Bazinet ◽  
Charles Merritt

1967 ◽  
Vol 44 (4) ◽  
pp. 274-274
Author(s):  
Pio Angelini ◽  
D. A. Forss ◽  
M. L. Bazinet ◽  
Charles Merritt

Author(s):  
Boudjada Amina ◽  
Touil Ahmed ◽  
Bendif Hamdi ◽  
Bensouici Chawki ◽  
Rhouati Salah

 Objective: The aim of this study was the isolation and identification of secondary metabolites from Crataegus azarolus (L.) and the antioxidant evaluation of its extracts and compounds.Methods: The air-dried powdered parts of the plant were extracted with 70% methanol and fractionated by chloroform, ethyl acetate, and n-butanol. The n-butanol extract was separated using polyamide SC6 column and silica gel TLC. In addition, a fraction of silica gel column of the CHCl3 extract was analyzed by gas chromatography–mass spectrometer (GC–MS). The total phenolic and total flavonoid contents of CHCl3 and n-butanol extracts were estimated. Furthermore, the antioxidant activities of CHCl3, n-butanol extracts, and two flavonoids were evaluated according to five different methods.Results: Eight compounds were identified in CHCl3 and n-butanol extracts, among them, five volatile compounds identified by GC–MS for the 1st time from the species, as well as three known flavonol glycosides identified by spectral analysis (ultraviolet,1H-nuclear magnetic resonance [NMR], and13C-NMR) and by comparison with literature data. The n-butanol extract showed the higher content of polyphenols (307.33 ± 2.33 mg (gallic acid equivalents)/g extract) and flavonoids (143.0 ± 2.12 mg QE/g extract) and it proves the highest antioxidant activity with all assays used.Conclusion: Five volatile compounds were identified for the 1st time from the C. azarolus and the antioxidant potential of plant extracts was measured using five different methods.


1973 ◽  
Vol 38 (2) ◽  
pp. 345-349 ◽  
Author(s):  
RUDOLPH E. DECK ◽  
JAN POKORNY ◽  
STEPHEN S. CHANG

2020 ◽  
Vol 11 (1) ◽  
pp. 78
Author(s):  
Lucrezia Gatti ◽  
Federica Troiano ◽  
Violetta Vacchini ◽  
Francesca Cappitelli ◽  
Annalisa Balloi

In this study, the biocidal activity of two plant derivatives (oregano and cloves’ essential oils—EOs) was evaluated, as a potential innovative and eco-friendly cleaning method for canvas paintings. The object of the study was the oil painting on canvas entitled “Studio di nudo” (Giovanni Maria Mossa, 1921), showing stains caused by microorganisms. The research focused on: (1) isolation and identification of microorganisms associated with discolorations on the obverse and reverse sides of the canvas; (2) evaluation of biocidal activity of selected EOs against fungal and bacterial collections. The phylogenetic identification was conducted with both cultivation and molecular methods. The canvas was mainly colonized by Penicillium, Aspergillus, and Cephaloteca fungal genera and by bacteria of the Bacillus genus. To evaluate the biocidal effect of the EOs’ volatile components only, an antibiogram assay (agar disc diffusion method) and a customized assay (named the contactless test) were conducted. Tested EOs showed antimicrobial activity on fungi and bacteria. However, compared to cloves, oregano EO exhibited a better inhibition activity both in contact and contactless tests. The work is pioneering for the use of EOs’ volatile compounds against oil painting biodeteriogens, and gives insights into possible extended, innovative and eco-friendly cleaning methods for painting control procedures.


1982 ◽  
Vol 47 (1) ◽  
pp. 127-133 ◽  
Author(s):  
CHI-TANG HO ◽  
MIN-HSIUNG LEE ◽  
STEPHEN S. CHANG

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