Characterization of galactomannan derivatives in roasted coffee beverages

Journal of Agricultural and Food Chemistry
Fernando M NunesManuel A Coimbra

Abstract

In this work, the galactomannans from roasted coffee infusions were purified by 50% ethanol precipitation, anion exchange chromatography, and phenylboronic acid-immobilized Sepharose chromatography. Specific enzymatic hydrolysis of the beta-(1-->4)-D-mannan backbone allowed us to conclude that the galactomannans of roasted coffee infusions are high molecular weight supports of low molecular weight brown compounds. Also, the molecular weight of the brown compounds linked to the galactomannan increases with the increase of the coffee degree of roast. The reaction pathways of galactomannans during the coffee roasting process were inferred from the detection of specific chemical markers by gas chromatography-electron impact mass spectrometry and/or electrospray ionization tandem mass spectrometry. Maillard reaction, caramelization, isomerization, oxidation, and decarboxylation pathways were identified by detection of Amadori compounds, 1,6-beta-anhydromannose, fructose, glucose, mannonic acid, 2-ketogluconic acid, and arabinonic acid in the reducing end of the obtained oligosaccharides. The implication of the several competitive reaction pathways is discussed and related to the structural changes of the galactomannans present in th...Continue Reading

References

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Citations

Jan 7, 2014·Bioprocess and Biosystems Engineering·Prakram Singh ChauhanNaveen Gupta
Feb 9, 2012·Applied Microbiology and Biotechnology·Prakram Singh ChauhanNaveen Gupta
Mar 19, 2013·Food Chemistry·Ana S P MoreiraM Rosário M Domingues
Jul 16, 2009·Molecular Nutrition & Food Research·Joana SimõesManuel A Coimbra
Nov 6, 2008·Molecular Nutrition & Food Research·Nicole ReichardtMichael Blaut
Dec 5, 2013·Carbohydrate Polymers·Joana SimõesManuel A Coimbra
Apr 3, 2013·Carbohydrate Polymers·Cláudia P Passos, Manuel A Coimbra
Aug 19, 2014·Carbohydrate Polymers·Ana S P MoreiraManuel A Coimbra
Jun 19, 2013·Carbohydrate Polymers·Joana SimõesManuel A Coimbra
Nov 3, 2009·Analytical Biochemistry·José A FerreiraManuel A Coimbra
Aug 12, 2016·Journal of Agricultural and Food Chemistry·Sagar DeshpandeNikolai Kuhnert
May 4, 2012·Journal of Experimental Botany·María del Carmen Rodríguez-GacioAngel J Matilla
Mar 21, 2017·Journal of Agricultural and Food Chemistry·Tian TianDaniela Barile
Jul 13, 2018·The Journal of Biological Chemistry·Mariane Noronha DominguesMário Tyago Murakami
Dec 19, 2007·Critical Reviews in Biotechnology·Samriti Dhawan, Jagdeep Kaur
May 16, 2012·Food & Function·Ana S P MoreiraManuel A Coimbra
May 26, 2012·Food & Function·Paola VitaglioneNicoletta Pellegrini
Sep 20, 2015·The Journal of Biological Chemistry·Motoyuki ShimizuMasashi Kato
Feb 22, 2017·World Journal of Microbiology & Biotechnology·Weeranuch SeesomWasana Sukhumsirichart
Jul 23, 2011·Food & Function·Vincenzo Fogliano, Francisco J Morales
Feb 2, 2020·International Journal of Biological Macromolecules·Jie GuQiang Yong
May 21, 2008·Journal of Agricultural and Food Chemistry·E Koen BekedamGerrit Smit
Aug 6, 2008·Journal of Agricultural and Food Chemistry·E Koen BekedamGerrit Smit
Aug 14, 2012·Journal of Agricultural and Food Chemistry·Fernando M NunesManuel A Coimbra
Nov 12, 2010·Journal of Agricultural and Food Chemistry·José Manuel SilvánFulgencio Saura-Calixto
Aug 9, 2011·Journal of Agricultural and Food Chemistry·Ana S P MoreiraM Rosário M Domingues
Jan 10, 2012·Journal of Agricultural and Food Chemistry·Feifei WeiMasaru Tanokura
Sep 4, 2018·Journal of Agricultural and Food Chemistry·Tian TianDaniela Barile
Jul 31, 2007·Journal of Agricultural and Food Chemistry·Diana GniechwitzMirko Bunzel
Oct 31, 2007·Journal of Agricultural and Food Chemistry·José A Rufián-Henares, Francisco J Morales
Sep 28, 2006·Journal of Agricultural and Food Chemistry·E Koen BekedamGerrit Smit
Apr 26, 2007·Journal of Agricultural and Food Chemistry·Fernando M Nunes, Manuel A Coimbra
Oct 18, 2011·Carbohydrate Research·Joana TudellaM Rosario M Domingues

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