TITLE

Free and Glycosidically Bound Volatiles in Guava Leaves (Psidium guajava L.) Palmira ICA-I Cultivar

AUTHOR(S)
García, Mady; Quijano, Clara E.
PUB. DATE
March 2009
SOURCE
Journal of Essential Oil Research;Mar/Apr2009, Vol. 21 Issue 2, p131
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Free and glycosidically bound volatiles obtained from the guava leaves (Psidium guajava L.) by liquid-liquid extraction and by chromatography, followed by enzymatic hydrolysis with non-selective pectinase respectively, were analyzed by capillary GC and GC/MS analyses. A total of 39 free volatiles were detected (total amount of 1328 μg/kg), with the major components being α-copaene, β-caryophyllene, and cadina-1,4-diene. Among the 47 detected glycosidically bound compounds (total amount of 7050 μg/kg), hexanol, benzyl alcohol, and (E)-3-hexenoic acid were found to be the major constituents. In aroma evaluation, the free volatile fraction showed a guava leaf-like aroma whereas the bound fraction was odorless. However, the characteristic herbaceous-green-fatty aroma was noted in the bound fraction after enzymatic hydrolysis. Upon the combination of the free and hydrolyzed bound fractions, a strongly fresh, guava leaf-like aroma was perceived.
ACCESSION #
37553467

 

Related Articles

  • Analysis of Volatile Compounds from Solanum betaceum Cav. Fruits from Panama by Head-Space Micro Extraction. Durant, Armando A.; Rodríguez, Candelario; Santana, Ana I.; Herrero, Carlos; Rodríguez, Juan C.; Gupta, Mahabir P. // Records of Natural Products;2013, Vol. 7 Issue 1, p15 

    The characterization of the volatile compounds of two varieties of Solanum betaceum Cav. by means of headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS) is presented. The HS-SPME method for extraction of the volatiles compounds was optimized...

  • Analysis of Volatile Compounds from Melinis minutiflora by HS-SPME-GC-MS. Gao Guang-chun; Zheng Xu-song; Xu Hong-xing; Zhong-xian, L. V. // Natural Product Research & Development;Dec2011, Vol. 23 Issue 6, p1073 

    In this study, a head-space solid phase microextraction (HS-SPME) method was developed for extracting the volatile compounds from Melinis minutiflora. Then gas chromatography-mass spectrometry (GC-MS) coupled with retention indicator and comparison with standard samples was used to characterize...

  • A technique for atmospheric measurements of stable carbon isotope ratios of isoprene, methacrolein, and methyl vinyl ketone. Iannone, R.; Koppmann, R.; Rudolph, J. // Journal of Atmospheric Chemistry;Nov2007, Vol. 58 Issue 3, p181 

    A technique was developed to measure stable carbon isotope ratios (13C/12C) of light volatile organic compounds (VOCs) such as isoprene, methacrolein (MACR) and methyl vinyl ketone (MVK) using gas chromatography combustion isotope ratio mass spectrometry (GCC-IRMS). An automated sampling and...

  • Exposure to Volatile Organic Compounds in an Ethanol and Gasoline Service Station. Oliveira, K.; Martins, E.; Arbilla, G.; Gatti, L. // Bulletin of Environmental Contamination & Toxicology;Aug2007, Vol. 79 Issue 2, p237 

    The present study was conducted to determine the VOCs concentrations in a service station located in a residential and commercial area in the city of Rio de Janeiro. This is, to our knowledge, the first published determination in Brazil, where both ethanol and ethanol-blended gasoline are used....

  • Volatile Aromatic Compounds in a Light-Duty Vehicle Tunnel in Rio de Janeiro, Brazil. Machado, M.; Almeida, J.; Martins, E.; Arbilla, G. // Bulletin of Environmental Contamination & Toxicology;May2007, Vol. 78 Issue 5, p304 

    This article discusses the concentrations of volatile aromatic hydrocarbons (VAC) from a tunnel carrying light-duty vehicles in Rio de Janeiro, Brazil. According to the authors, nearly three-quarters of all vehicles in Brazil use gasohol in their vehicles. This study used a gas...

  • Seasonal Variation in the Volatiles of Copaifera duckei Dwyer Growing Wild in the State of Pará - Brazil. Lameira, Osmar A.; Martins-da-Silva, Regina C. V.; Zoghbi, Maria das Graças B.; Oliveira, Elaine C. P. // Journal of Essential Oil Research;Mar/Apr2009, Vol. 21 Issue 2, p105 

    The oleoresins of three trees of Copaifera duckei Dwyer were harvested from September 2003 at one-month intervals up to September 2004, and the volatiles examined by GC-FID and GC/M S. The highest oleoresin harvested from Sample A occurred at October 2003 to May 2004 (in the later dry season to...

  • Chemical composition of volatile constituents of Magnolia grandiflora. Yuan Wang; Ruimin Mu; Xiangrong Wang; Sixiu Liu; Zhengqiu Fan // Chemistry of Natural Compounds;Mar2009, Vol. 45 Issue 2, p257 

    The article presents a study which determines the chemical composition of volatile constituents in the leaf of Magnolia grandiflora Linn, an evergreen from the Magnoliaceae family. The study utilized a headspace solid-phase microextraction combined with microwave-assisted extraction to extract...

  • Volatiles of Two Endemic Anthemis Species from Turkey. Kirimer, N.; Demirci, B.; Duman, H.; Baser, K. // Chemistry of Natural Compounds;May2014, Vol. 50 Issue 2, p379 

    The article presents information on a study conducted on the volatiles of two endemic Anthemis species from Turkey. In the study, the volatiles of the species were obtained by microdistillation of the dried and ground plant materials, and after distillation, the volatiles were analyzed by using...

  • Using Solid Phase Microextraction (SPME) and Person Portable GC-MS for Trace Level Detection of Selected Volatile Organic Chemicals in Air. Sadowski, Charles S.; Brande, Tiffany C.; Later, Douglas W. // LC-GC North America;Feb2013 Supplement, Vol. 31, p20 

    The article offers information on a method for detecting trace level of selected volatile organic chemicals from air by the use of Custodian solid phase microextraction (SPME) syringe and Tridion-9 Personal Portable Gas Chromatography-Mass Spectrometry (GC-MS) from Torion Technologies Inc....

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics