Summary.
A mixture of roasted chicory roots and wheat germ (1:1 w/w) was subjected to extrusion processing for preparation of coffee substitute. Comparative studies concerning sensory characteristics and headspace volatiles were carried out between genuine coffee and a freshly prepared coffee substitute. The sensory evaluation revealed similarities between the two samples. The comparative odour profile analysis showed that the sweetish/caramel-like note scored higher in our coffee substitute sample than in real coffee, whereas the other odour quality attributes showed an opposite trend. The high quality of the fresh coffee substitute was correlated to the presence of volatiles that are responsible for the fresh coffee aroma, such as: 2-methylbutanal, 3-methylbutanal, 2-methylfuran and 2,3-butanedione in high concentration. Storage of coffee substitute samples revealed a noticeable decrease in concentration of the Strecker aldehydes and diketones and a remarkable increase in phenolic compounds, whereas pyrazine and furan derivatives showed no linear changes during storage. The ratio of 2,3-butanedione/2-methylfuran (B/M) was used as an indicator for aging of coffee substitute samples. The variation in this ratio (B/M) during storage for 6 months was consistent with that of the odour profile analysis.
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References
Adams RP (1995) Identification of essential oil components by gas chromatography/mass spectrometry, Allured Publishing Carol Stream, Illinois, USA
HH Baek KR Cadwallader (1998) ArticleTitleRoasted chicory aroma evaluation by gas chromatography/mass spectrometry/olfactometry J Food Sci 63 234–237 Occurrence Handle1:CAS:528:DyaK1cXivV2hsr4%3D Occurrence Handle10.1111/j.1365-2621.1998.tb15716.x
W Baltes G Bochmann (1987) ArticleTitleModel reactions on roast aroma formation. II: Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting Z Lebensm Unters Forsch 184 179–186 Occurrence Handle10.1007/BF01042203 Occurrence Handle1:CAS:528:DyaL2sXktlyiu78%3D
Blank I, Sen A, Grosch W (1991) Aroma impact compounds of Arabica and Robusta coffee. Qualitative and quantitative investigation. In: 14th International Scientific Colloquium on Coffee, San Francisco. ASIC, Paris, pp 117–129
I Blank A Sen W Grosch (1992) ArticleTitlePotent odorants of the roasted powder and brew of Arabica coffee Z Lebensm Unters Forsch 195 239–245 Occurrence Handle10.1007/BF01202802 Occurrence Handle1:CAS:528:DyaK3sXlvF2i
WLP Bredie DS Mottram RCE Guy (1998) ArticleTitleAroma volatiles generated during extrusion cooking of maize flour J Agric Food Chem 46 1479–1487 Occurrence Handle10.1021/jf9708857 Occurrence Handle1:CAS:528:DyaK1cXit1Wgu78%3D
WLP Bredie DS Mottram RCE Guy (2002) ArticleTitleEffect of temperature and pH on the generation of flavour volatiles in extrusion cooking of wheat flour J Agric Food Chem 50 1118–1125 Occurrence Handle11853492 Occurrence Handle10.1021/jf0111662 Occurrence Handle1:CAS:528:DC%2BD38XptVOmtg%3D%3D
RG Buttery JG Tumbargh LC Ling (1988) ArticleTitleContribution of volatiles to rice aroma J Agric Food Chem 36 1006–1009 Occurrence Handle10.1021/jf00083a025 Occurrence Handle1:CAS:528:DyaL1cXlt1Oms78%3D
YS El-Saharty BH El-Zeany MS Tawakkol RG Berger (1998) ArticleTitleAnalysis of odour active compounds of roasted wheat germ Adv Food Sci 20 53–58 Occurrence Handle1:CAS:528:DyaK1cXhs1Glt70%3D
HHM Fadel A Farouk (2002) ArticleTitleCaramelization of maltose solution in presence of alanine Amino Acids 22 199–213 Occurrence Handle12395187 Occurrence Handle10.1007/s007260200008 Occurrence Handle1:CAS:528:DC%2BD38XksFWjsbo%3D
HHM Fadel MA Abdel Mageed AME Abdel Samad SN Lotfy (2006) ArticleTitleCocoa substitute: evaluation of qualities and flavour stability Eur Food Res Technol 223 125–131 Occurrence Handle10.1007/s00217-005-0162-3 Occurrence Handle1:CAS:528:DC%2BD28Xjs1Kmu7w%3D
I Flament (1989) ArticleTitleCoffee, cocoa and tea Food Rev Int 5 317–414 Occurrence Handle1:CAS:528:DyaL1MXmtlSksbw%3D Occurrence Handle10.1080/87559128909540857
I Flament (1991) Volatile compounds H Maarse (Eds) Foods and beverages Dekker New York 617–669
AS Franca JCF Mendonca SD Oliveira (2005) ArticleTitleComposition of green and roasted coffees of different cup qualities Food Sci Technol 38 709–715 Occurrence Handle1:CAS:528:DC%2BD2MXltVeisr0%3D
W Holscher (1990) ArticleTitleComparison of some aroma impact compounds in roasted coffee and coffee surrogates Café Cacao The 34 205–212 Occurrence Handle1:CAS:528:DyaK3MXmtVKmtLw%3D
W Holscher H Steinhart (1992) ArticleTitleInvestigation of roasted coffee freshness with an improved headspace technique Z Lebensm Unters Forsch 195 33–38 Occurrence Handle10.1007/BF01197836 Occurrence Handle1:CAS:528:DyaK38XmtFSqsrk%3D
Holscher W, Steinhart H (1994) Formation pathways for primary roasted coffee aroma compounds. ACS Symposium Series 543
M Ishikawa O Ito S Ishizaki Y Kurobayashi A Fujita (2004) ArticleTitleSolid-phase aroma concentrate extraction (SPACETM): a new headspace technique for more sensitive analysis of volatiles Flavour Fragr J 19 183–187 Occurrence Handle10.1002/ffj.1322 Occurrence Handle1:CAS:528:DC%2BD2cXltVagt70%3D
D Kanjahn HG Maier (1996) ArticleTitleHydroxymethylfurfural and furfural in coffee and related beverages. 1 – Evaluation of the method Deutsche Lebensmittel-Rundschau 92 328–331 Occurrence Handle1:CAS:528:DyaK28XmvVWitLs%3D
D Kanjahn HG Maier (1997) ArticleTitleHydroxymethylfurfural and furfural in coffee and related beverages. III. Coffee related beverage Deutsche Lebensmittel-Rundschau 93 110–112 Occurrence Handle1:CAS:528:DyaK2sXivFOisrs%3D
F Ledl E Schleicher (1990) ArticleTitleNew aspects to the Maillard reaction in foods and in the human body Angew Chem Int Ed Engl 29 565–706 Occurrence Handle10.1002/anie.199005653
M Leino J Kaitaranta H Kallio (1992) ArticleTitleComparison of changes in headspace volatiles of some coffee blends during storage Food Chem 43 35–40 Occurrence Handle10.1016/0308-8146(92)90238-W Occurrence Handle1:CAS:528:DyaK3MXmslymsL0%3D
GJP Marsman H Gruppen J Groot AGJ Voragen (1998) ArticleTitleEffect of toasting and extrusion at different shear levels on soy protein interactions J Agric Food Chem 46 2770–2777 Occurrence Handle10.1021/jf970879a Occurrence Handle1:CAS:528:DyaK1cXktFKrtL8%3D
F Mayer W Grosch (2001) ArticleTitleAroma simulation on the basis of odourant composition of roasted coffee headspace Flavour Fragr J 16 180–190 Occurrence Handle10.1002/ffj.975 Occurrence Handle1:CAS:528:DC%2BD3MXkt1OrsLw%3D
K Ramalakshmi B Raghavan (1998) ArticleTitleCaffeine in coffee: its removal. Why and how? Crit Rev Food Sci Nutri 39 441–456 Occurrence Handle10.1080/10408699991279231
WE Riha CF Hwang MV Karwe TG Hartman CT HO (1996) ArticleTitleEffect of cysteine addition on the volatiles of extruded wheat flour J Agric Food Chem 44 1847–1850 Occurrence Handle10.1021/jf950793m Occurrence Handle1:CAS:528:DyaK28Xjsl2rtr0%3D
S Rocha L Maeztu A Barros C Cid MA Coimbra (2004) ArticleTitleScreening and distinction of coffee brews based on headspace solid phase microextraction/gas chromatography/principal component analysis J Sci Food Agric 84 43–51 Occurrence Handle10.1002/jsfa.1607 Occurrence Handle1:CAS:528:DC%2BD2cXlsVKnsQ%3D%3D
P Semmelroch W Grosch (1996) ArticleTitleStudies on character impact odorants of food brews J Agric Food Chem 44 537–543 Occurrence Handle10.1021/jf9505988 Occurrence Handle1:CAS:528:DyaK28XmslKltA%3D%3D
R Silwar R Tressl (1989) ArticleTitleGas chromatographic-mass-spectrometric investigation of aroma compounds from the reaction of cysteine and methionine with furfural under roasting conditions Z Lebensm Unters Forsch 189 205–211 Occurrence Handle10.1007/BF01028064 Occurrence Handle1:CAS:528:DyaK3cXhtlOlu7k%3D
C Yeretzian A Jordan R Badoud W Lindinger (2002) ArticleTitleFrom the green bean to the cup of coffee: investigating coffee roasting by on-line monitoring of volatiles Eur Food Res Technol 214 92–104 Occurrence Handle10.1007/s00217-001-0424-7 Occurrence Handle1:CAS:528:DC%2BD38Xit1Kiur8%3D
G Ziegleder (1991) ArticleTitleComposition of flavour extracts of raw and roasted cocoa Z Lebensm Unters Forsch 193 32–35 Occurrence Handle10.1007/BF01192013
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Authors’ address: Prof. Dr. Hoda H. M. Fadel, Chemistry of Flavour and Aroma Department, National Research Centre, Al-Behos St., Dokki, Cairo, Egypt
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Fadel, H., Abdel Mageed, M. & Lotfy, S. Quality and flavour stability of coffee substitute prepared by extrusion of wheat germ and chicory roots. Amino Acids 34, 307–314 (2008). https://doi.org/10.1007/s00726-006-0434-7
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DOI: https://doi.org/10.1007/s00726-006-0434-7