Prof. Dr. Irene Chetschik

Personal profile

Position at the ZHAW

www.zhaw.ch/de/lsfm/institute-zentren/ilgi/chemie/

Membership of networks

Gesellschaft Deutscher Chemiker

Projects

• BioDeTox - Microbial reduction of zearalenone, a grain-relevant mycotoxin / Deputy project leader / Project ongoing
• Molecular Sensory Guided Flavor Improvement of Plant-Based Egg / Project leader / Project ongoing
• Fruit to Bar – Innovative post-harvest processing of de-pulped cocoa beans and pulp thereof for single source chocolate / Project co-leader / Project ongoing
• PE(K)O Sustain – Physically modified oils as sustainable alternative to tropical fats for the baking and sweet goods industry / Team member / Project ongoing
• CREATE – Microorganisms to foster pulses-based healthy food / Project co-leader / Project ongoing
• Plant-based meat analogues produced by innovative pre-processing and extrusion (PlantEAT) / Project co-leader / Project ongoing
• Wurzeln als regionale Lebensmittelrohstoffe / Project leader / Project completed
• Vanille / Project leader / Project completed
• SONEVA / Project leader / Project completed
• InnoYeast - Etablierung und Optimierung eines Herstellungsverfahrens für innovative funktionelle Hefen / Team member / Project completed
• Cocoa in Numbers – from data to knowledge / Project leader / Project completed
• Entwicklung einer Sorptiven Niedertemperatur Trocknung / Team member / Project completed
• Strategies to reduce mycotoxins in grain side product streams enabling their reintroduction into the food value chain / Project co-leader / Project completed
• CocArom – Cocoa Aroma by Cultures: Einfluss von mikrobiellen Kulturen auf die Aromabildung während der Kakaobohnenfermentation und die Sensorik der Kakaomasse und Schokolade / Team member / Project completed
• The Coffee Blockchain – From Field to Cup / Team member / Project completed
• Entwicklung eines Antioxidationsmittels für die Verarbeitung von frischen Früchten und Gemüse auf Basis von Rhabarbersaft / Team member / Project completed
• Impact of yeast on bread flavour / Team member / Project completed

Publications

• 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

• 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.

  Available from: https://www.cocotea2019.com/app/download/12646324787/Cocotea2019+Book+Of+Abstracts+-+Posters.PDF?t=1563552975

• 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.

• 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.

  Available from: https://www.iscrsymposium.org/wp-content/uploads/2022/12/94_07122022_0800_einstein_Lisa_Ullrich.pdf

• 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.

  Available from: https://www.cocotea2019.com/app/download/12646324287/Cocotea2019+Book+Of+Abstracts+-+Oral+Presentations.PDF?t=1563552947

Publications before appointment at the ZHAW

2015: Chetschik I, Tanner M, Gassenmeier K. Elucidation of the aroma-active compounds in cooked and raw beef bone marrow. Flavour Science: Proceedings of the XIV Weurman Flavour Research Symposium

2011: Fraundorfer F, Christlbauer M, Chetschik I, Schaller J-P. Elucidation of ashtray
odor. Proceedings of the 13th Weurman Flavour Research Symposium, 27-30 September 2011, Zaragoza

2010: Chetschik I, Granvogl M, Schieberle P. Quantitation of key peanut aroma compounds in raw Peanuts and pan-roasted meal. Aroma reconstitution and comparison with commercial peanut products. J. Agric. Food Chem. 58, 11018-11026.

2009: Chetschik I, Schieberle P. Analyse von Schlüsselaromastoffen in rohen und gerösteten Erdnüssen. Lebensmittelchemie, 63, 115-116.

2008: Chetschik I, Granvogl M, Schieberle P. Comparison of key aroma compounds in organically grown, raw West-Aftrican peanuts and in ground, pan-roasted meal produced thereof. J. Agric. Food Chem. 56, 10237-10243.

Patent applications:

Ajithkumar, Anu; Chetschik, Irene; Schaller, Jean-Pierre. Heated aerosol-generating articles comprising improved rods. PCT Int. Appl. (2015), WO 2015055567 A1 20150423.

Hufnagel, Jan-Carlos; Christlbauer, Monika; Chetschik, Irene; Petermann, Marcus; Kilzer, Andreas; Henske, Simon; Daiminger, Reiner. Method of forming wax encapsulated flavor delivery system for tobacco. Eur. Pat. Appl. (2015), EP 2885983 A1 20150624.

Hufnagel, Jan-Carlos; Christlbauer, Monika; Chetschik, Irene; Daiminger, Reiner; Petermann, Marcus; Kilzer, Andreas; Knev, Zeljko; Novak, Zoran; Perva Uzunalic, Amra; Henske, Simon. Wax encapsulated zeolite flavor delivery system for tobacco. PCT Int. Appl. (2015), WO 2015092749 A1 20150625

Hufnagel, Jan-Carlos; Christlbauer, Monika; Chetschik, Irene; Daiminger, Reiner; Petermann, Marcus; Kilzer, Andreas; Knev, Zeljko; Novak, Zoran; Perva Uzunalic, Amra; Wax encapsulated flavor delivery system for tobacco. PCT Int. Appl. (2015) WO 2015092748 A1 20150625

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