Abstract
The volatile flavor compounds are the most important indicators of the quality of cocoa beans, among which pyrazines are considered as the main and key groups affecting the cocoa flavor. In cocoa processing, roasting is an important stage in the technical treatment of cocoa and has a significant impact on chemical properties of cocoa and its flavor. The present study aimed to assess the impact of roasting (temperature and time) on alkyl pyrazines, as key flavor compounds, via gas chromatography–mass spectrometry. Additionally, other properties, including color, polyphenols, chemical properties, and sensory attributes of cocoa powder were investigated. The results indicated that with the change in roasting time and temperature, these properties changed significantly. The cocoa powder roasted at 140 °C for 40 min had the highest browning index value (OD460/OD525), tetramethylpyrazine to trimethylpyrazine (TMP/TrMP) ratio, and sensory evaluation score and the lowest polyphenol content compared to the other samples.
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Abbreviations
- GC–MS:
-
Gas chromatography–mass spectrometry
- MP:
-
Methylpyrazine
- DMP:
-
Dimethylpyrazine
- TrMP:
-
Trimethylpyrazine
- TMP:
-
Tetramethylpyrazine
References
Alasti FM, Asefi N, Maleki R, SeiiedlouHeris SS (2020) The influence of three different types and dosage of alkaline on the inherent properties in cocoa powder. J Food Sci Technol 57(7):2561–2571. https://doi.org/10.1007/s13197-020-04293-w
AOAC (2005) Official methods of analysis of AOAC International. In: Association of Official Analysis Chemists International. Association of Official Analytical Chemists International, Gaithersburg
Aprotosoaie AC, Luca SV, Miron A (2016) Flavor chemistry of cocoa and cocoa products—an overview. Compr Rev Food Sci Food Saf 15(1):73–91. https://doi.org/10.1111/1541-4337.12180
Arlorio M, Locatelli M, Travaglia F, Coïsson JD, Del GE, Minassi A, Appendino G, Martelli A (2008) Roasting impact on the contents of clovamide (N-caffeoyl-L-DOPA) and the antioxidant activity of cocoa beans (Theobroma cacao L.). Food Chem 106(3):967–975. https://doi.org/10.1016/j.foodchem.2007.07.009
Beckett ST (2009) Industrial chocolate manufacture and use, 4th edn. Wiley. https://doi.org/10.1002/9781444301588
Bonvehí JS (2005) Investigation of aromatic compounds in roasted cocoa powder. Eur Food Res Technol 221(1–2):19–29. https://doi.org/10.1007/s00217-005-1147-y
Civille GV, Carr BT (2020) Introduction to sensory techniques. CRC Press, Boca Raton. https://doi.org/10.1201/b19493-6
De Brito ES, García NHP, Gallão MI, Cortelazzo AL, Fevereiro PS, Braga MR (2001) Structural and chemical changes in cocoa (Theobroma cacao L.) during fermentation, drying and roasting. J Sci Food Agric 81(2):281–288. https://doi.org/10.1002/1097-0010(20010115)81:2%3c281::AID-JSFA808%3e3.0.CO;2-B
Djikeng FT, Teyomnou WT, Tenyang N, Tiencheu B, Morfor AT, Touko BAH, Houketchang SN, Boungo GT, Karuna MSL, Ngoufack FZ, Womeni HM (2018) Effect of traditional and oven roasting on the physicochemical properties of fermented cocoa beans. Heliyon 4(2):e00533. https://doi.org/10.1016/j.heliyon.2018.e00533
Farah DMH, Zaibunnisa AH, Misnawi J, Zainal S (2012) Effect of roasting process on the concentration of acrylamide and pyrizines in roasted cocoa beans from different origins. APCBEE Proc 4(4):204–208. https://doi.org/10.1016/j.apcbee.2012.11.034
Gìltekin-Özgìven M, Berktaş I, Özçelik B (2016) Change in stability of procyanidins, antioxidant capacity and in-vitro bioaccessibility during processing of cocoa powder from cocoa beans. LWT Food Sci Technol 72:559–565. https://doi.org/10.1016/j.lwt.2016.04.065
Hii CL, Menon AS, Chiang CL, Sharif S (2017) Kinetics of hot air roasting of cocoa nibs and product quality. J Food Process Eng 40(3):e12467. https://doi.org/10.1111/jfpe.12467
Jinap S, Wan Rosli WI, Russly AR, Nordin LM (1998) Effect of roasting time and temperature on volatile component profiles during nib roasting of cocoa beans (Theobroma cacao). J Sci Food Agric 77(4):441–448. https://doi.org/10.1002/(sici)1097-0010(199808)77:4%3c441::aid-jsfa46%3e3.0.co;2-%23
Kofink M, Papagiannopoulos M, Galensa R (2007) Enantioseparation of catechin and epicatechin in plant food by chiral capillary electrophoresis. Eur Food Res Technol 225(3–4):569–577. https://doi.org/10.1007/s00217-006-0455-1
Kongor JE, Hinneh M, de Walle D, Van AEO, Boeckx P, Dewettinck K (2016) Factors influencing quality variation in cocoa (Theobroma cacao) bean flavour profile: a review. Food Res Int 82:44–52. https://doi.org/10.1016/j.foodres.2016.01.012
Kothe L, Zimmermann BF, Galensa R (2013) Temperature influences epimerization and composition of flavanol monomers, dimers and trimers during cocoa bean roasting. Food Chem 141(4):3656–3663. https://doi.org/10.1016/j.foodchem.2013.06.049
Krysiak W (2006) Influence of roasting conditions on coloration of roasted cocoa beans. J Food Eng 77(3):449–453. https://doi.org/10.1016/j.jfoodeng.2005.07.013
Krysiak W, Adamski R, Żyżelewicz D (2013) Factors affecting the colour of roasted cocoa bean. J Food Qual 36:21–31
Li Y, Zhu S, Feng Y, Xu F, Ma J, Zhong F (2014) Influence of alkalization treatment on the color quality and the total phenolic and anthocyanin contents in cocoa powder. Food Sci Biotechnol 23(1):59–63. https://doi.org/10.1007/s10068-014-0008-5
Mazor Jolić S, Radojčic Redovnikovic I, Marković K, Ivanec Šipušić D, Delonga K (2011) Changes of phenolic compounds and antioxidant capacity in cocoa beans processing. Int J Food Sci Technol 46(9):1793–1800. https://doi.org/10.1111/j.1365-2621.2011.02670.x
Ramli N, Hassan O, Said M, Samsudin W, Idris NA (2006) Influence of roasting conditions on volatile flavor of roasted Malaysian cocoa beans. J Food Process Preserv 30(3):280–298. https://doi.org/10.1111/j.1745-4549.2006.00065.x
Schultz TH, Flath RA, Mon TR, Eggling SB, Teranishi R (1977) Isolation of volatile components from a model system. J Agric Food Chem 25(3):446–449. https://doi.org/10.1021/jf60211a038
Serra Bonvehí J, Ventura Coll F (2002) Factors affecting the formation of alkylpyrazines during roasting treatment in natural and alkalinized cocoa powder. J Agric Food Chem 50(13):3743–3750. https://doi.org/10.1021/jf011597k
Wiesława K, Motyl-Patelska L (2006) Effects of air parameters on changes in temperature inside roasted cocoa beans. Acta Agrophys 7(1):113–127
Wieslawa K, Adamski R, Zyzelewicz D (2013) Factors affecting the color of roasted cocoa bean. J Food Qual 36(1):21–31. https://doi.org/10.1111/jfq.12009
Ziegleder G (2009) Flavour development in cocoa and chocolate. In: Industrial chocolate manufacture and use, 4th edn,pp 169–191. https://doi.org/10.1002/9781444301588.ch8
Zyzelewicz D, Krysiak W, Nebesny E, Budryn G (2014) Application of various methods for determination of the color of cocoa beans roasted under variable process parameters. Eur Food Res Technol 238(4):549–563. https://doi.org/10.1007/s00217-013-2123-6
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Asefi, N., Ebrahimzadegan, S., Maleki, R. et al. Effects of roasting on alkylpyrazin compounds and properties of cocoa powder. J Food Sci Technol 60, 572–580 (2023). https://doi.org/10.1007/s13197-022-05640-9
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DOI: https://doi.org/10.1007/s13197-022-05640-9