Prof. Dr. Irene Chetschik

Work at ZHAW

Position

Head Research Group Food Chemistry

Network

ORCID digital identifier

ORCID ID: 0000-0002-7009-6357

Projects

• Decoding of flavour properties of selectecd cocoa liquors / Project leader / laufend
• Elucidation of aroma compounds in hemp / Project leader / laufend
• Molecular Sensory Guided Flavor Improvement of Plant-Based Egg / Project leader / laufend
• Microbial reduction of zearalenone, a grain-relevant mycotoxin / Deputy project leader / abgeschlossen
• Fruit to Bar – Innovative post-harvest processing of de-pulped cocoa beans and pulp thereof for single source chocolate / Co-project leader / abgeschlossen
• PE(K)O Sustain – Physically modified oils as sustainable alternative to tropical fats for the baking and sweet goods industry / Team member / abgeschlossen
• SONEVA / Project leader / abgeschlossen
• CREATE – Microorganisms to foster pulses-based healthy food / Co-project leader / abgeschlossen
• Plant-based meat analogues produced by innovative pre-processing and extrusion (PlantEAT) / Co-project leader / abgeschlossen
• Cocoa in Numbers – from data to knowledge / Project leader / abgeschlossen
• Strategies to reduce mycotoxins in grain side product streams enabling their reintroduction into the food value chain / Co-project leader / abgeschlossen
• The Coffee Blockchain – From Field to Cup / Team member / abgeschlossen

Publications

• Mischler, Sandra; André, Amandine; Chetschik, Irene; Miescher Schwenninger, Susanne; et al.,

  2024.

  Potential for the bio-detoxification of the mycotoxins Enniatin B and deoxynivalenol by lactic acid bacteria and Bacillus spp..

  Microorganisms.

  12(9), pp. 1892.

  Available from: https://doi.org/10.3390/microorganisms12091892

• Streule, Stefanie; André, Amandine; Freimüller Leischtfeld, Susette; Chatelain, Karin; Gillich, Elodie; Chetschik, Irene; Miescher Schwenninger, Susanne,

  2024.

  Influences of depulping, pod storage and fermentation time on fermentation dynamics and quality of Ghanaian cocoa.

  Foods.

  13(16), pp. 2590.

  Available from: https://doi.org/10.3390/foods13162590

• Tran, Thi Khanh Linh; Salvatore, Ivana; Geller, Joel; Theodoracakis, Emmanuelle; Ullrich, Lisa; Chetschik, Irene,

  2024.

  Molecular aroma composition of vanilla beans from different origins.

  Journal of Agricultural and Food Chemistry.

  72(34), pp. 19120-19130.

  Available from: https://doi.org/10.1021/acs.jafc.4c04775

• André, Amandine; Hecht, Katrin; Mischler, Sandra; Stäheli, Luca; Kerhanaj, Fllanza; Buller, Rebecca; Kinner, Mathias; Freimüller Leischtfeld, Susette; Chetschik, Irene; Miescher Schwenninger, Susanne; Müller, Nadina,

  2024.

  A new physical and biological strategy to reduce the content of zearalenone in infected wheat kernels : the effect of cold needle perforation, microorganisms, and purified enzyme.

  Food Research International.

  186(114364).

  Available from: https://doi.org/10.1016/j.foodres.2024.114364

• Mischler, Sandra; André, Amandine; Freimüller Leischtfeld, Susette; Müller, Nadina; Chetschik, Irene; Miescher Schwenninger, Susanne,

  2024.

  Potential of lactic acid bacteria and Bacillus spp. in a bio-detoxification strategy for mycotoxin contaminated wheat grains.

  Applied Microbiology.

  4(1), pp. 96-111.

  Available from: https://doi.org/10.3390/applmicrobiol4010007

• Ullrich, Lisa; Gillich, Elodie; André, Amandine; Panarese, Sandra; Imhaus, Anne Flore; Fieseler, Lars; Chetschik, Irene,

  2023.

  Influence of ozone treatment during storage on odour-active compounds, total titratable acidity, and ascorbic acid in oranges and bananas.

  Applied Sciences.

  13(19), pp. 10885.

  Available from: https://doi.org/10.3390/app131910885

• Ullrich, Lisa; Casty, Bettina; André, Amandine; Hühn, Tilo; Chetschik, Irene; Steinhaus, Martin,

  2023.

  Influence of the cocoa bean variety on the flavor compound composition of dark chocolates.

  ACS Food Science & Technology.

  3(3), pp. 470-477.

  Available from: https://doi.org/10.1021/acsfoodscitech.2c00418

• Ullrich, Lisa; Casty, Bettina; André, Amandine; Hühn, Tilo; Steinhaus, Martin; Chetschik, Irene,

  2022.

  Decoding the fine flavor properties of dark chocolates.

  Journal of Agricultural and Food Chemistry.

  70(42), pp. 13730-13740.

  Available from: https://doi.org/10.1021/acs.jafc.2c04166

• Schlüter, Ansgar; Hühn, Tilo; Kneubühl, Markus; Chatelain, Karin; Rohn, Sascha; Chetschik, Irene,

  2022.

  Comparison of the aroma composition and sensory properties of dark chocolates made with moist incubated and fermented cocoa beans.

  Journal of Agricultural and Food Chemistry.

  70(13), pp. 4057-4065.

  Available from: https://doi.org/10.1021/acs.jafc.1c08238

• Schlüter, Ansgar; André, Amandine; Hühn, Tilo; Rohn, Sascha; Chetschik, Irene,

  2022.

  Influence of aerobic and anaerobic moist incubation on selected nonvolatile constituents : comparison to traditionally fermented cocoa beans.

  Journal of Agricultural and Food Chemistry.

  70(51), pp. 16335-16346.

  Available from: https://doi.org/10.1021/acs.jafc.2c06493

• André, Amandine; Müller, Nadina; Chetschik, Irene,

  2022.

  Occurrence of zearalenone and enniatin B in Swiss wheat grains and wheat flours.

  Applied Sciences.

  12(20), pp. 10566.

  Available from: https://doi.org/10.3390/app122010566

• André, Amandine; Casty, Bettina; Ullrich, Lisa; Chetschik, Irene,

  2022.

  Use of molecular networking to identify 2,5-diketopiperazines in chocolates as potential markers of bean variety.

  Heliyon.

  8(9), pp. e10770.

  Available from: https://doi.org/10.1016/j.heliyon.2022.e10770

• Chetschik, Irene,

  2021.

  Key odorants of cocoa.

  Chimia.

  75(11), pp. 981.

  Available from: https://doi.org/10.2533/chimia.2021.981

• Ullrich, Lisa; Neiens, Silva; Hühn, Tilo; Steinhaus, Martin; Chetschik, Irene,

  2021.

  Impact of water on odor-active compounds in fermented and dried cocoa beans and chocolates made thereof.

  Journal of Agricultural and Food Chemistry.

  69(30), pp. 8504-8510.

  Available from: https://doi.org/10.1021/acs.jafc.1c02287

• André, Amandine; Leupin, Marianne; Kneubühl, Markus; Pedan, Vasilisa; Chetschik, Irene,

  2020.

  Evolution of the polyphenol and terpene content, antioxidant activity and plant morphology of eight different fiber-type cultivars of Cannabis sativa L. cultivated at three sowing densities.

  Plants.

  9(12), pp. 1740.

  Available from: https://doi.org/10.3390/plants9121740

• Häfele, Martin; Flüeler, Thomas; Gerber, Oliver; Chetschik, Irene; Casty, Bettina; Daniel, Z'graggen; Konrad, Bernath; Hühn, Tilo,

  2019.

  Rhabarbersaft als biologische Möglichkeit der Enzymkontrolle bei der Herstellung von Apfelsäften.

  Flüssiges Obst.

  2019(11), pp. 388-392.

  Available from: https://doi.org/10.21256/zhaw-19116

• Chetschik, Irene; Pedan, Vasilisa; Chatelain, Karin; Kneubühl, Markus; Hühn, Tilo,

  2019.

  Characterization of the flavor properties of dark chocolates produced by a novel technological approach and comparison with traditionally produced dark chocolates.

  Journal of Agricultural and Food Chemistry.

  67(14), pp. 3991-4001.

  Available from: https://doi.org/10.1021/acs.jafc.8b06800

• Schlüter, Ansgar; Hühn, Tilo; Kneubühl, Markus; Chatelain, Karin; Rohn, Sascha; Chetschik, Irene,

  2019.

  Novel time- and location-independent postharvest treatment of cocoa beans : investigations on the aroma formation during “moist incubation” of unfermented and dried cocoa nibs and comparison to traditional fermentation.

  Journal of Agricultural and Food Chemistry.

  Available from: https://doi.org/10.1021/acs.jafc.9b06119

• Pedan, Vasilisa; Rohn, Sascha; Holinger, Mirjam; Hühn, Tilo; Chetschik, Irene,

  2018.

  Bioactive compound fingerprint analysis of aged raw pu’er tea and young ripened pu’er tea.

  Molecules.

  23(8).

  Available from: https://doi.org/10.3390/molecules23081931

• Chetschik, Irene; Kneubühl, Markus; Chatelain, Karin; Schlüter, Ansgar; Bernath, Konrad; Hühn, Tilo,

  2017.

  Investigations on the aroma of cocoa pulp (theobroma cacao L.) and its influence on the odor of fermented cocoa beans.

  Journal of Agricultural and Food Chemistry.

  66(10), pp. 2467-2472.

  Available from: https://doi.org/10.1021/acs.jafc.6b05008

• André, Amandine; Gillich, Elodie; Ullrich, Lisa; Chetschik, Irene,

  2023.

  Decoding the key flavour compounds of cocoa using mass spectrometry [poster].

  In:

  6th International Mass Spectrometry School, Cagliari, Italy, 17-22 September 2023.

• Kneubühl, Markus; André, Amandine; Chetschik, Irene,

  2021.

  Characterisation of the key-aroma compounds among the volatile constituents in different hemp strains (Cannabis sativa L.) [paper].

  In:

  Proceedings of the 16th Weurman Flavour Research Symposium.

  16th Weurman Flavour Research Symposium, online, 4-6 May 2021.

  Zenodo.

  Available from: https://doi.org/10.5281/zenodo.5513767

• Chetschik, Irene; Chatelain, Karin,

  2022.

  Aroma Kit Cocoa : an olfactory library for cocoa and chocolate [poster].

  In:

  Choco Tec, Cologne, Germany, 13-15 December 2022.

• Schlüter, Ansgar; Hühn, Tilo; Kneubühl, Markus; André, Amandine; Chatelain, Karin; Rohn, Sascha; Chetschik, Irene,

  2022.

  Novel time- and location-independent postharvest treatment of cocoa beans : “moist incubation” of unfermented and dried cocoa nibs [poster].

  In:

  International Symposium on Cocoa Research (ISCR), Montpellier, France, 5-7 December 2022.

• Chetschik, Irene; Chatelain, Karin; Keller, Regula; Miescher Schwenninger, Susanne; Trachsel, Sonja; Walder, Tim,

  2022.

  Cocoa in numbers : from data to knowledge.

  Transfer English edition.

  2022(2), pp. 16.

  Available from: https://doi.org/10.21256/zhaw-27413

• Chetschik, Irene; Chatelain, Karin,

  2022.

  Aroma Kit Cocoa : an olfactory library for cocoa and chocolate [poster].

  In:

  10th Round Table Cocoa, Hamburg, Germany, 2-3 June 2022.

• Chatelain, Karin; André, Amandine; Freimüller Leischtfeld, Susette; Schneider, Monika; Wick, Sylvia; Keller, Regula; Trachsel, Sonja; Waldner, Tim; Vorburger, Robert; Miescher Schwenninger, Susanne; Chetschik, Irene,

  2022.

  Cocoa in numbers : from data to knowledge [poster].

  In:

  10th Round Table Cocoa, Hamburg, Germany, 2-3 June 2022.

• Chetschik, Irene; André, Amandine,

  2021.

  Fibre-type hemp in the food and beverage industry : from the field to the molecule of interest.

  Transfer English edition.

  2021(1), pp. 10.

  Available from: https://doi.org/10.21256/zhaw-23225

• Laube, Priscilla; Schneller, Reinhard; Chetschik, Irene,

  2019.

  Aroma characterisation of Pu-Erh teas [poster].

  In:

  Cocotea2019 : book of abstracts.

  Fifth International Congress on Cocoa Coffee and Tea 2019, Bremen, 26th - 28th June 2019.

  pp. 77.

• Chetschik, Irene; Chatelain, Karin; Miescher Schwenninger, Susanne; Stucki, Matthias; Trachsel, Sonja; Wick, Sylvia; Vorburger, Robert; Schneider, Monika; Bratschi, Thomas; Hühn, Tilo,

  2019.

  Cocoa in numbers : from data to knowledge [poster].

  In:

  8. Round Table Cocoa, Hamburg, 13 - 14. Juni 2019.

• Schildberger, David; Stutz, Irene; Weber, Carlo; Pedan, Vasilisa; Schlüter, Ansgar; Huber, Petra; Chatelain, Karin; Chetschik, Irene; Eibl, Dieter; Hühn, Tilo; Eibl-Schindler, Regine,

  2018.

  Cast off! Chocolate from cacao cell cultures [poster].

  In:

  New Harvest 2018 Conference, Cambridge, USA, 20-21 July 2018.

• André, Amandine; Hecht, Katrin; Mischler, Sandra; Freimüller Leischtfeld, Susette; Kinner, Mathias; Stäheli, Luca; Kerhanaj, Fllanza; Buller, Rebecca; Miescher Schwenninger, Susanne; Chetschik, Irene; Müller, Nadina,

  2023.

  Eine biologische Strategie zur Reduzierung des Zearalenongehalts in infizierten Weizenkörnern.

  In:

  9. D-A-CH-Tagung für angewandte Getreidewissenschaften, Detmold, Deutschland, 5.-6. Oktober 2023.

• André, Amandine; Gillich, Elodie; Ullrich, Lisa; Chetschik, Irene,

  2023.

  Decoding the key flavour compounds of cocoa using mass spectrometry.

  In:

  6th International Mass Spectrometry School, Cagliari, Italy, 17-22 September 2023.

• Ullrich, Lisa; Casty, Bettina; André, Amandine; Hühn, Tilo; Steinhaus, Martin; Chetschik, Irene,

  2022.

  Decoding the fine flavour properties of dark chocolates.

  In:

  International Symposium on Cocoa Research (ISCR), Montpellier, France, 5-7 December 2022.

• Cordero, Chiara; Chetschik, Irene,

  2022.

  From sensomics to AI smelling and computer vision : exploring the chemical sensory code of premium chocolate.

  In:

  100 + 1 year anniversary of Société Chimique de Genève, Genève, Switzerland, 28 November 2022.

• Schlüter, Ansgar; Hühn, Tilo; Kneubühl, Markus; Chatelain, Karin; Rohn, Sascha; Chetschik, Irene,

  2022.

  Comparison of the aroma composition and sensory properties of dark chocolates made with moist incubated and fermented cocoa beans.

  In:

  51. AK Schoko, Kilchberg, Schweiz, 15. September 2022.

• André, Amandine; Freimüller Leischtfeld, Susette; Mischler, Sandra; Hecht, Katrin; Stäheli, Luca; Rüegg, Ramona; Kinner, Mathias; Buller, Rebecca; Chetschik, Irene; Miescher Schwenninger, Susanne; Müller, Nadina,

  2022.

  Mycotoxins reduction strategies to reintroduce grain side product streams into the food value chain.

  In:

  20th ICC Conference, Vienna, Austria, 5-7 July 2022.

• Chetschik, Irene,

  2022.

  The influence of cocoa bean variety on the flavour properties of dark chocolates : comparison of the molecular flavour composition of selected small batch chocolates to chocolates produced of cocoa reference liquors with defined flavour properties.

  In:

  10th Round Table Cocoa, Hamburg, Germany, 2-3 June 2022.

• Ullrich, Lisa; Neien, Silva; Chatelain, Karin; Kneubühl, Markus; Hühn, Tilo; Steinhaus, Martin; Chetschik, Irene,

  2021.

  Release of important chocolate odorants by water : comparison of traditionally manufactured chocolate to chocolate manufactured by a novel processing technology.

  In:

  International Chemical Congress of Pacific Basin Societies (Pacifichem), online, 16-21 December 2021.

• Chetschik, Irene; Chatelain, Karin,

  2021.

  Decoding the fine flavour properties of chocolates : towards a better understanding of fine aroma attributes and the development of standardised training samples for sensory panels.

  In:

  9. Runder Tisch Kakao : Nacherntebehandlung, Kakaobohnenqualität und Sensorikstandards: wie ist der Stand?, Hamburg (online), 3. Juni 2021.

• Chetschik, Irene; et al.,

  2020.

  Processing cocoa with water : new insights into aroma formation.

  In:

  Book of Abstracts.

  ACS Fall 2020 Virtual Meeting and Expo, San Francisco (United States), 17-20 August 2020.

  American Chemical Society.

• Schlüter, Ansgar; Hühn, Tilo; Rohn, Sascha; Chetschik, Irene,

  2019.

  Novel post-harvest treatments of cocoa and the influence on flavor properties of the products produced thereof.

  In:

  12th Wartburg Symposium : book of abstracts.

  12th Wartburg Symposium on Flavor Chemistry & Biology, Eisenach, Germany, 21-24 May 2019.

• Chetschik, Irene; Ullrich, Lisa; Schlüter, Ansgar; Chatelain, Karin; Hühn, Tilo,

  2019.

  Flavour characterisation of chocolate & cocoa products produced by novel processing techniques.

  In:

  Cocotea2019 : book of abstracts.

  Fifth International Congress on Cocoa Coffee and Tea 2019, Bremen, 26th - 28th June 2019.

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