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Reverse Osmosis Water-Based Beverages as a Product Innovation in Gastronomic Facilities: Expert Panelists’ Sensory Evaluation and Generation Y Consumers’ Attitudes
Titolo Rivista: ECONOMIA AGRO-ALIMENTARE 
Autori/Curatori: Jirí Zelený, Kristína Bednárová 
Anno di pubblicazione:  2019 Fascicolo: Lingua: Inglese 
Numero pagine:  24 P. 49-72 Dimensione file:  232 KB
DOI:  10.3280/ECAG2019-001004
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First part of the research explored possible sensory differences of water, coffee and tea made from 1) filtered tap water by reverse osmosis (RO) and 2) tap water with no treatment (NT) evaluated by 6 expert panelists. A discriminatory triangle test and a hedonic evaluation method were used. Wilcoxon pair test was used to analyze the range of sensory differences. Second part of the research consisted of survey research in Prague and Bratislava with 436 respondents exploring their attitudes towards RO water-based beverages. Consumers were divided into 1) generation Y younger segment (gyy) (16-24 years), 2) generation Y older segment (gyo) (25-32 years) and 3) non-millennials (NM) (more than 32 years). To explore possible changes in respondents’ attitudes, short scientific text containing both positive and negative impact of RO was presented as experimental intervention. Pearson’s chi-squared test, post-hoc Bonferroni method and McNemar-Bowker test were used. Triangle test showed that there is no sensory difference between using RO water and NT water for all three types of beverages. Hedonic evaluation brought seldom differences for RO beverages: the aroma of the tea became weaker, coffee turned out to be cleaner in appearance and acidity of the tea was reduced. The use of RO in some of the gastronomic facilities with high quality of input tap water does not seem to be justified as only sporadic sensory differences between RO and NT beverages were found. Nevertheless, especially gyy appears to be more responsive to RO beverages despite their relatively low knowledge in this field. Their conviction about positive sensory effect of RO leads to higher willingness to use it (especially for a tap water as a drink), and their willingness to pay (wtp) more for RO beverages in comparison with more informed and sceptic NM. This study adheres the importance of dividing the generation Y into gyy and gyo groups since the gyo copy more NM than their own generation. When experimental intervention was done, it affected noticeable group of respondents that switched to the negative attitude towards facilities equipped with RO as well as excluded RO from their selection more than other filtration machines. This was the case of wtp too, since higher awareness about effects of RO decreased wtp across all generations. In general, RO presence was not a motive for respondents’ visits in gastronomic facility equipped with it. Respondents did not prefer RO more than other filtration machines.


Keywords: Coffee, hedonic evaluation, tea, triangle test, willingness to pay.
Jel Code: L83, L95, M31

  1. Agnoli, L., Boeri, M., Scarpa, R., Capitello, R., & Begalli, D. (2018). Behavioural patterns in Mediterranean-style drinking: Generation Y preferences in alcoholic beverage consumption. Journal of Behavioral and Experimental Economics, 75, 117-125.
  2. Barnaby, R., Liefeld, A., Jackson, B.P., Hampton, T.H., & Stanton, B.A. (2017). Effectiveness of table top water pitcher filters to remove arsenic from drinking water. Environmental Research, 158, 610-615.
  3. Beasley, T.M., & Schumacker, R.E. (1995). Multiple Regression Approach to Analyzing Contingency Tables: Post Hoc and Planned Comparison Procedures. The Journal of Experimental Education, 64(1), 79-93., 10.1080/00220973.1995.9943797DOI: 10.1080/00220973.1995.9943797
  4. Bergman, R. (2007). Reverse osmosis and nanofiltration: Manual of Water Supply Practices. 2nd ed. Denver, CO: American Water Works Association.
  5. Boye, J.I. (2015). Nutraceutical and functional food processing technology. Hoboken, NJ, USA: Wiley Blackwell.
  6. Brennan, J.G. & Grandisson, A. S. (2012). Food Processing Handbook. 2nd ed. Weinheim, Germany: Wiley VCH Verlag GmbH & Co.
  7. Brock, T.D. (1983). Membrane filtration: A User’s Guide and Reference Manual. Berlin-Madison: Springer-Science Tech.
  8. Brom, C., Děchtěrenko, F., Frollova, N., Starkova, T., Bromova, E., & D’Mello, S. K. (2017). Enjoyment or involvement? Affective-motivational mediation during learning from a complex computerized simulation. Computers & Education, 114, 236-254.
  9. Burlingame, G.A., Dietrich, A.M., & Whelton, A.J. (2007). Understanding the basics of tap water taste. Journal - American Water Works Association, 99(5), 100-111.
  10. Burn, S. & Gray, S. (2016). Efficient Desalination by Reverse Osmosis: A Guide to RO Practice. London, UK: IWA Publishing.
  11. Capehart, K.W., & Berg, E.C. (2018). Fine Water: A Blind Taste Test. Journal of Wine Economics, 13(01), 20-40.
  12. Cassano, A., Drioli, E., Galaverna, G., Marchelli, R., Di Silvestro, G., & Cagnasso, P. (2003). Clarification and concentration of citrus and carrot juices by integrated membrane processes. Journal of Food Engineering, 57(2), 153-163.
  13. Colonna-Dashwood, M. & Hendon, C.H. (2015). Water for coffee. United Kingdom: Independent Publishing Network.
  14. Crittenden, J.C., Trussell, R.R., Hand, D.W., Howe, K.J. & Tchobanoglous, G. (2012). MWH’s water treatment: principles and design. 3rd ed. Hoboken, N.J.: John Wiley.
  15. Danrong, Z., Yuqiong, C., & Dejiang, N. (2009). Effect of water quality on the nutritional components and antioxidant activity of green tea extracts. Food Chemistry, 113(1), 110-114.
  16. DiVita, L. J. (2005). Water Water Everywhere. Chef Magazine, 15(11), 40-41.
  17. Doria, M.F. (2006). Bottled water versus tap water: understanding consumers’preferences. Journal of Water and Health, 4(2), 271-276.
  18. Gari, D.W. (2006). Celosvětove hodnoceni bezpečnosti pitnych vod. Praha: Státní zdravotní ustav, 1-3. -- Retrieved from: www.szu.cz/uploads/documents/chzp/voda/pdf/swit.pdf.
  19. Gledhill, B. (2003). Equipment. Caterer & Hotelkeeper, 192(4295), 85-85.
  20. Gorgoglione, M., Messeni Petruzzelli, A., & Panniello, U. (2017). Innovation through tradition in the Italian coffee industry: an analysis of customers’ perceptions. Review of Managerial Science, 12(3), 661-682.
  21. Harmon, D., Gauvain, M., Reisz Z., Arthur, I., & Story, S.D. (2018). Preference for tap, bottled, and recycled water: Relations to PTC taste sensitivity and personality. Appetite, 121, 119-128.
  22. Hendon, C.H., Colonna-Dashwood, L., & Colonna-Dashwood, M. (2014). The Role of Dissolved Cations in Coffee Extraction. Journal of Agricultural and Food Chemistry, 62(21), 4947-4950.
  23. Hnilicova, H., Nome, S., Dobiašova, K., Zvolsky, M., Henriksen, R., Tulupova, E., & Kmecova, Z. (2017). Comparison of Alcohol Consumption and Alcohol Policies in the Czech Republic and Norway. Central European Journal of Public Health, 25(2), 145-151.
  24. Hsu, S.-H., Hsiao, C.-F., & Tsai, S.-B. (2018). Constructing a consumption model of fine dining from the perspective of behavioral economics. PLOS ONE, 13(4), e0194886.
  25. Imura, N. & Danno S. (1955). Effects of extract pretreatment via microfiltration on the concentration of coffee extract via reverse osmosis. 16th International Scientific Colloquium on Coffee. Paris: Assoc Scientifique Int Café (pp. 470-477).
  26. Jacob, C., Gueguen, N., & Boulbry, G. (2014). Using verbal attention to enhance restaurant customer satisfaction and behavior. International Journal of Hospitality Management, 39, 50-52.
  27. Kotas, J. (2016) Zakladni funkce a princip reverzni osmozy (RO). Praha: Tzbinfo, VŠCHT Praha – FTOP – Ustav technologie vody a prostředí. -- Retrieved from: https://voda.tzb-info.cz/vlastnosti-a-zdroje-vody/14589-zakladni-funkce-a-principreverzni-osmozy-ro.
  28. Kwon, E., & Mattila, A. (2017). Comparing benefit- and attribute-based menu assortments: an exploratory study. Journal of Service Theory and Practice, 27(1), 87-101.
  29. Larasati, A. & Issutarti. (2017). The Analysis of Consumer Preferences on Mulberry Leaves Tea as An Antioxidant-Enriched Product. Proceedings of the 2nd International Conference on Accounting, Management, and Economics 2017 (icaME 2017). Paris: Atlantis Press (pp. 41-51).
  30. Lee, S.H., Lee, J., & Neilson, S.M.F. (2017). Exploring Guest Preferences of Breakfast Menu: Conjoint Analysis. Journal of Culinary Science & Technology, 16(2), 149-164., 10.1080/15428052.2017.1352546DOI: 10.1080/15428052.2017.1352546
  31. McFeters, G.A. (1990). Drinking water microbiology. New York: Springer.
  32. Murugesh, C.S., Manoj, J.B., Haware, D.J., Ravi, R., & Subramanian, R. (2017). Influence of water quality on nutritional and sensory characteristics of green tea infusion. Journal of Food Process Engineering, 40(5), e12532.
  33. Opazo, M.P. (2016). Appetite for innovation: creativity and change at elBulli. New York: Columbia University Press.
  34. Pacheco, M.H.S., Kuriya, S.P., Capobiango, C.S.C., Pimentel, T.C., Cruz, A.G., Esmerino, E.A., & Freitas, M.Q. (2018). Exploration of gender differences in bottled mineral water consumption: A projective study of consumer’s perception in Brazil. Journal of Sensory Studies, 33(4).
  35. Pan, B., Yan, P., Zhu, L., & Li, X. (2013). Concentration of coffee extract using nanofiltration membranes. Desalination, 317, 127-131.
  36. Pospisil, A. (2017). Let’s Make Water for Coffee Easier for Everybody. Brno: European Coffe Trip. -- Retrieved from: https://europeancoffeetrip.com/water-forcoffee-made-easier/.
  37. Ray, C., & Jain, R. (2011). Drinking Water Treatment: Focusing on Appropriate Technology and Sustainability. Dordrecht: Springer Netherlands.
  38. Reisenwitz, T.H. & Iyer R. (2009). Differences in Generation X and Generation Y: Implications fot the Organization and Marketers. Marketing Management Journal, 2, (January), 91-103.
  39. Rizvi, S.H. (2010). Separation, Extraction and Concentration Processes in the Food, Beverage and Nutraceutical Industry. Cambridge, UK: Woodhead Publishing Limited, 2010.
  40. Sogari, G., Pucci, T., Aquilani, B., & Zanni, L. (2017). Millennial Generation and Environmental Sustainability: The Role of Social Media in the Consumer Purchasing Behavior for Wine. Sustainability, 9(10), 1911.
  41. Speciality Coffee Association of America. (2015). Water for Brewing Standards. Santa Ana, California: Specialty Coffee Association of America. – Retrieved from: www.scaa.org/?page=resources&d=water-standards.
  42. Talat, N., & Bhaduri, S. (2017). Incremental innovations, information contagion, and path dependence: the case of drinking water purification technologies in urban India. Industrial and Corporate Change, 26(6), 1089-1108.
  43. Teillet, E., Urbano, C., Cordelle, S., & Schlich, P. (2010). Consumer Perception and Preference of Bottled and Tap Water. Journal of Sensory Studies, 25(3), 463-480.
  44. Thurston, R.W., Morris, J. & Steiman, S. (2013). Coffee: a comprehensive guide to the bean, the beverage, and the industry. Lanham: Rowman & Littlefield.
  45. Vega, C., Ubbink, J. & Van Der Linder, E. (2012). The kitchen as laboratory: reflections on the science of food and cooking. New York: Columbia University Press.
  46. Viani, R. & Illy, A. (2005). Espresso Coffee: The Science of Quality. 2nd ed. San Diego, United States: Elsevier Science Publishing Co.
  47. Vincze, I. & Vatai, G. (2004). Application of nanofiltration for coffee extract concentration. permea 2003 Conference. Amsterdam, Netherlands: Elsevier Science BV (pp.284-294).
  48. Winston H., W.S. & Sirkar, K. (1992). Membrane Handbook. New York: Springer US. Wood, D.C. (2010). Economic Action in Theory and Practice: Anthropological Investigations. Bingley, UK: Emerald Group Publishing Limited.
  49. Wosiński, S., Jurga, J., Kruczyński, Z., Gorski, R., Sobieralski, K., & Siwulski, M. (2012). An Esr Study of Free Radicals Scavenging by Red Tea. Ecological Chemistry and Engineering S, 19(1), 47-54.
  50. Zhang, Z.G., Song, R.H., Wu, P., Yao, M.Q. & Chen, L. (2011). Innovation Packaging Design of Mogan Huangya Tea. 2011 IEEE 12th International Conference on Computer-Aied Industrial Design & Conceptual Design, Vols 1 and 2: New Engines for Industrial Design: Intelligence - Interaction - Services. NY, USA: IEEE (pp. 149-153).

Jirí Zelený, Kristína Bednárová, in "ECONOMIA AGRO-ALIMENTARE" 1/2019, pp. 49-72, DOI:10.3280/ECAG2019-001004

   

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