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 FNS  Vol.6 No.15 , November 2015
Comparison between Hydroponic and Soil-Grown Strawberries: Sensory Attributes and Correlations with Nutrient Content
Chenin Treftz,   Zhang, Stanley T. Omaye
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Abstract: Hydroponic growing methods are growing in popularity and seem to have numerous benefits (i.e., environmental, increased product yields, year round growing) compared to soil grown crops. Although these advantages are attractive, they do not guarantee a high quality product. Taste is a driver of consumer acceptance; therefore, sensory analysis of the hydroponic product will be an important indicator in its success. In this study, we evaluated the sensory differences and preferences in hydroponically grown and soil-grown strawberries (Fragaria x ananassa) using unspecified discriminatory and preference analyses, and descriptive testing correlated with nutrition content data. Most (87%) of participants could identify differences between hydroponically and soil grown strawberries and 70% preferred the hydroponically grown strawberry (p = 0.06). The nutrient composition of the strawberries significantly influenced several sensory analysis categories (sweetness, overall flavor and overall taste (p < 0.05)). The use of sensory studies in relation to consumer acceptance and nutrient quality will be an important factor to consider for exploring growing methods and techniques in hydroponic technology.
Keywords: Hydroponic, Sensory Evaluation, Sustainable Foods, Strawberry, Greenhouse
Cite this paper: Treftz, C. , Zhang, &. and Omaye, S. (2015) Comparison between Hydroponic and Soil-Grown Strawberries: Sensory Attributes and Correlations with Nutrient Content. Food and Nutrition Sciences, 6, 1371-1380. doi: 10.4236/fns.2015.615143.
References

[1]   Resh, H.M. and Howard, M. (2012) Hydroponic Food Production: A Definitive Guidebook for the Advanced Home Gardener and the Commercial Hydroponic Grower. St. Bárbara, EUA.
http://dx.doi.org/10.1201/b12500

[2]   Gruda, N. (2009) Do Soilless Culture Systems Have an Influence on Product Quality of Vegetables? 147, 141-147.

[3]   Treftz, C. and Omaye, S.T. (2015) Nutrient Analysis of Soil and Soilless Strawberries and Raspberries Grown in a Greenhouse. Food and Nutrition Sciences, 6, 805-815.
http://dx.doi.org/10.4236/fns.2015.69084

[4]   Buchanan, D.N. and Omaye, S.T. (2013) Comparative Study of Ascorbic Acid and Tocopherol Concentrations in Hydroponic- and Soil-Grown Lettuces. Food and Nutrition Sciences, 4, 1047-1053.
http://dx.doi.org/10.4236/fns.2013.410136

[5]   Mattheis, J.P. and Fellman, J.K. (1999) Preharvest Factors Influencing Flavor of Fresh Fruit and Vegetables. Postharvest Biology and Technology, 15, 227-232.
http://dx.doi.org/10.1016/S0925-5214(98)00087-8

[6]   Ng, M., Chaya, C. and Hort, J. (2013) The Influence of Sensory and Packaging Cues on Both Liking and Emotional, Abstract and Functional Conceptualisations. Food Quality and Preference, 29, 146-156.
http://dx.doi.org/10.1016/j.foodqual.2013.03.006

[7]   Garruti, S. and Virginia, H. (2010) Sensory Evaluation in Fruit Product Development.

[8]   Rao, A.R. (2005) The Quality of Price as a Quality Cue. Journal of Marketing Research, 42, 401-405.
http://dx.doi.org/10.1509/jmkr.2005.42.4.401

[9]   Bronnenberg, B.J., Dhar, S.K. and Dubé, J.-P. (2007) Consumer Packaged Goods in the United States: National Brands, Local Branding. Journal of Marketing Research, 44, 4-13.
http://dx.doi.org/10.1509/jmkr.44.1.4

[10]   Macht, M. (2008) How Emotions Affect Eating: A Five-Way Model. Appetite, 50, 1-11.
http://dx.doi.org/10.1016/j.appet.2007.07.002

[11]   Steinmetz, K.A. and Potter, J.D. (1996) Vegetables, Fruit, and Cancer Prevention: A Review. Journal of the American Dietetic Association, 96, 1027-1039.
http://dx.doi.org/10.1016/S0002-8223(96)00273-8

[12]   Giampieri, F., Tulipani, S., Alvarez-Suarez, J.M., Quiles, J.L., Mezzetti, B. and Battino, M. (2012) The Strawberry: Composition, Nutritional Quality, and Impact on Human Health. Nutrition, 28, 9-19.
http://dx.doi.org/10.1016/j.nut.2011.08.009

[13]   O’Mahony, M. (2013) The Tetrad Test: Looking Back, Looking Forward. Journal of Sensory Studies, 28, 259-263.
http://dx.doi.org/10.1111/joss.12045

[14]   Beckley, J.H., Moskowitz, H.R. and Resurreccion, A.V.A. (2006) Sensory and Consumer Research in Food Product Design and Development. Wiley-Blackwell, Oxford.
http://dx.doi.org/10.1002/9780470277706

[15]   Meilgaard, M.C., Carr, B.T. and Civille, C.G. (2006) Sensory Evaluation Techniques. 4th Edition, CRC Press, Boca Raton.

[16]   O’Mahony, M. and Rousseau, B. (2003) Discrimination Testing: A Few Ideas, Old and New. Food Quality and Preference, 14, 157-164.
http://dx.doi.org/10.1016/S0950-3293(02)00109-X

[17]   Ennis, J.M. and Jesionka, V. (2011) The Power of Sensory Discrimination Methods Revisited. Journal of Sensory Studies, 26, 371-382.
http://dx.doi.org/10.1111/j.1745-459X.2011.00353.x

[18]   Ho, L.C. (2004) The Contribution of Plant Physiology in Glasshouse Tomato Soilless Culture. Acta Horticulturae, 19-25.
http://dx.doi.org/10.17660/ActaHortic.2004.648.2

[19]   Stone, H. and Sidel, J.L. (2004) Sensory Evaluation Practices. Academic Press, London.

[20]   Worch, T., Lê, S. and Punter, P. (2010) How Reliable Are the Consumers? Comparison of Sensory Profiles from Consumers and Experts. Food Quality and Preference, 21, 309-318.
http://dx.doi.org/10.1016/j.foodqual.2009.06.001

 
 
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