FNS  Vol.2 No.9 , November 2011
Integration of an Objective Approach Focused on the Consumer to Evaluate the Quality of Processed Brussels Sprouts
Few research works focus on integration of the objective analysis of frozen vegetable quality and the preference of consumers for these products. The aim of the present work was to investigate the consumption patterns of Brussels sprouts, the degree of importance that consumers give to main attributes, and the constructions they make about product quality. For this aim, a series of surveys (snowball sampling method) were performed with consumers from four cities in Argentina. Also, the effect of different industrial operations (two blanching procedures, freezing and cooking) on texture, color, total chlorophyll content and ascorbic acid content of processed sprouts, was determined with respect to the fresh product. A function Z (overall quality) was defined to integrate the information obtained by both approaches. Taking into account the relative importance assigned by surveyed consumers to appearance, texture and nutrient content, the quality of final product obtained from different processing methods was equivalent. Most consumers, 96% of total, preferred the fresh product, which suggests that prejudging by consumers influences attempts at objective estimation of quality.

Cite this paper
nullD. Olivera, S. Viña, R. Ferreyra, A. Mugridge, R. Mascheroni and A. Chaves, "Integration of an Objective Approach Focused on the Consumer to Evaluate the Quality of Processed Brussels Sprouts," Food and Nutrition Sciences, Vol. 2 No. 9, 2011, pp. 1011-1017. doi: 10.4236/fns.2011.29135.
[1]   P. M. Kris-Etherton, K. D. Hecker, A. Bonanome, S. M. Coval, A. E. Binkoski, K. F. Hilpert, A. E. Griel and T. D. Etherton, “Bioactive Compounds in Foods: Their Role in the Prevention of Cardiovascular Disease and Cancer,” American Journal of Medicine, Vol. 113 No. 9B, 2002, pp. 71S-88S. doi:10.1016/S0002-9343(01)00995-0

[2]   C. B. Ambrosone, S. E. Mc Cann, J. L. Freudenheim, J. R. Marshall, Y. Zhang and P. G. Shields, “Breast Cancer Risk in Premenopausal Women is Inversely Associated with Consumption of Broccoli, a Source of Isothiocyanates, but is Not Modified by GST Genotype,” Journal of Nutrition, Vol. 134, No 6, 2004, pp. 1134-1138.

[3]   C. A. Thomson, T. R. Newton, E. J. Graver, K. A. Jackson, P. M. Reid, V. L. Hartz, E. C. Cussler and I. A. Hakim, “Cruciferous Vegetable Intake Questionnaire Improves Cruciferous Vegetable Intake Estimates,” Journal of the American Dietetic Association, Vol. 107, No 4, 2007, pp. 631-643. doi:10.1016/j.jada.2007.01.016

[4]   Z. Lisiewska, W. Kmiecik and A. Korus, “The Amino Acid Composition of Kale (Brassica oleracea L. var. acephala), Fresh and after Culinary and Technological Processing,” Food Chemistry, Vol. 108, No. 2, 2008, pp. 642-648. doi:10.1016/j.foodchem.2007.11.030

[5]   M. Paolini, “Brussels Sprouts: An Exceptionally Rich Source of Ambiguity for Anticancer Strategies,” Toxicology and Applied Pharmacology, Vol. 152, No. 2, 1998, pp. 293-294. doi:10.1006/taap.1998.8517

[6]   Y.-S. Keum, W.-S. Jeong and A. N. T. Kong, “Chemoprevention by Isothiocyanates and Their Underlying Molecular Signaling Mechanisms,” Mutation Research, Vol. 555, No. 1-2, 2004, pp. 191-202. doi:10.1016/j.mrfmmm.2004.05.024

[7]   A. Pods?dek, “Natural Antioxidants and Antioxidant Capacity of Brassica Vegetables: A Review,” LWT―Food Science and Technology, Vol. 40, No. 1, 2007, pp. 1-11.

[8]   A. Tudoran, S. O. Olsen and D. C. Dopico, “The Effect of Health Benefit Information on Consumers Health Value, Attitudes and Intentions,” Appetite, Vol. 52, No. 3, 2009, pp. 568-579. doi:10.1016/j.appet.2009.01.009

[9]   C.-H. Lin and C.-Y. Chang, “Textural Change and Antioxidant Properties of Broccoli under Different Cooking Treatments,” Food Chemistry, Vol. 90, No. 1-2, 2005, pp. 9-15. doi:10.1016/j.foodchem.2004.02.053

[10]   N. Turkmen, F. Sari and Y. S. Velioglu, “The Effect of Cooking Methods on Total Phenolics and Antioxidant Activity of Selected Green Vegetables,” Food Chemistry, Vol. 93, No. 4, 2005, pp. 713-718. doi:10.1016/j.foodchem.2004.12.038

[11]   W. Canet and M. D. Alvarez Torres, “Quality and Safety of Frozen Vegetables,” In: D.-W. Sun, Ed., Handbook of Frozen Food Processing and Packaging, CRC Press, Boca Raton, 2006, p. 377.

[12]   P. G?bczyński and W. Kmiecik, “Effects of Traditional and Modified Technology, in the Production of Frozen Cauliflower, on the Contents of Selected Antioxidative Compounds,” Food Chemistry, Vol. 101, No. 1, 2007, pp. 229-235. doi:10.1016/j.foodchem.2006.01.021

[13]   E. Sikora, E. Cie?lik, T. Leszczyńska, A. Filipiak-Florkiewicz and P. M. Pisulewski, “The Antioxidant Activity of Selected Cruciferous Vegetables Subjected to Aquathermal Processing,” Food Chemistry, Vol. 107, No. 1, 2008, pp. 55-59. doi:10.1016/j.foodchem.2007.07.023

[14]   L. Viteri, “Hortalizas Congeladas, “(Doc A-14) Estudio 1 EG 33.7, Componente A; BID 925/OC-AR. CEPAL Office-UN in Buenos Aires Economicai Police Office, Nation Economy Minister, 2003, Argentina. Available at: http://www.eclac.org/argentina/noticias/paginas/7/12267/Informe33714A.PDF

[15]   A. Fernández-Nogales, “Investigación y Técnicas de Mercado,” 2da Edición, Esic Editoral, Madrid, 2004, pp. 154-155.

[16]   I. Grande and E. Abascal, “Análisis de Encuestas,” Esic Editorial. Madrid, 2005, pp. 69-70.

[17]   S. Z. Vi?a, D. F. Olivera, C. M. Marani, R. M. Ferreyra, A. Mugridge, A. R. Chaves and R. H. Mascheroni, “Quality of Brussels Sprouts (Brassica oleracea L. gemmifera DC) as Affected by Blanching Method,” Journal of Food Engineering, Vol. 80, No. 1, 2007, pp. 218-225. doi:10.1016/j.jfoodeng.2006.02.049

[18]   D. F. Olivera, S. Z. Vi?a, C. M. Marani, R. M. Ferreyra, A. Mugridge, A. R. Chaves and R. H. Mascheroni, “Effect of Blanching on the Quality of Brussels Sprouts (Brassica oleracea L. gemmifera DC) after Frozen Storage,” Journal of Food Engineering, Vol. 84, No. 1, 2008, pp. 148-155. doi:10.1016/j.jfoodeng.2007.05.005

[19]   J. Blahovec, “Mechanics and Ttexture of Fruits and Vegetables,” In: R. Dris, R. Niskanen and S. M. Jain, Eds., Crop Management and Postharvest Handling of Horticultural Products (Vol. II), Fruits and Vegetables, Science Publishers, Enfield, 2003, pp. 139-185.

[20]   H. K. Lichtenthaler, “Chlorophylls and Carotenoids: Pigments of Photosynthetic Biomembranes,” Methods in Enzymology, Vol. 148, 1987, pp. 350-382. doi:10.1016/0076-6879(87)48036-1

[21]   P. Wimalasiri and R. B. H. Wills, “Simultaneous Analysis of Ascorbic Acid and Dehydroascorbic Acid in Fruit and Vegetables by High-Performance Liquid Chromatography,” Journal of Chromatography, Vol. 256, 1983, pp. 368-371. doi:10.1016/S0021-9673(01)88253-4

[22]   S. Y. Ruiz de Maya and J. L. Mu?uera, “Las Preferencias del Consumidor: Estudio de su Composición a Través del Análisis Conjunto,” Estudios sobre consumo, No. 28, 1993, pp. 27-43.

[23]   G. G. Zeinstra, M. A. Koelen, F. J. Kok and C. De Graaf, “Cognitive Development and Children’s Perceptions of Fruit and Vegetables; a Qualitative Study,” International Journal of Behavioral Nutrition and Physical Activity, Vol. 4, No. 1, 2007, p. 30. doi:10.1186/1479-5868-4-30

[24]   E. M. Gon?alves, J. Pinheiro, M. Abreu, T. R. S. Brand?o and C. L. M. Silva, “Modelling the Kinetics of Peroxidase Inactivation, Colour and Texture Changes of Pumpkin (Cucurbita maxima L.) during Blanching,” Journal of Food Engineering, Vol. 81, No. 4, 2007, pp. 693-701. doi:10.1016/j.jfoodeng.2007.01.011

[25]   I. Revilla and A. M. Vivar-Quintana, “Effect of Canning Process on Texture of Faba Beans (Vicia faba),” Food Chemistry, Vol. 106, No. 1, 2008, pp. 310-314. doi:10.1016/j.foodchem.2007.02.046

[26]   L. C. Greve, K. A. Shackel, H. Ahmadi, R. N. Mc Ardle, J. R. Gohlke and J. M. Labavitch, “Impact of Heating on Carrot Firmness: Contribution of Cellular Tturgor,” Jour- nal of Agriculture and Food Chemistry, Vol. 42, No. 12, 1994, pp. 2896-2899. doi:10.1021/jf00048a047

[27]   P. Nisha, R. S. Singhal and A. B. Pandit, “A Study on the Degradation Kinetics of Visual Green Colour in Spinach (Spinaccea oleracea L.) and the Effect of Salt Therein,” Journal of Food Engineering, Vol. 64, No. 1, 2004, pp. 135-142. doi:10.1016/j.jfoodeng.2003.09.021

[28]   K. Higashi-Okai, S. Otani and Y. Okai, “Potent Suppressive Effect of a Japanese Edible Seaweed, Enteromorpha Prolifera (Sujiao-nori) on Initiation and Promotion Phases of Chemically Induced Mouse Skin Tumorigenesis,” Cancer Letters, Vol. 140, No. 1-2, 1999, pp.21-25. doi:10.1016/S0304-3835(99)00047-6

[29]   L. Ma and D. Dolphin, “The Metabolites of Dietary Chlorophylls,” Phytochemistry, Vol. 50, No. 2, 1999, pp. 195-202. doi:10.1016/S0031-9422(98)00584-6

[30]   K. Morita, M. Ogata and T. Hasegawa, “Chlorophyll Derived from Chlorella Inhibits Dioxin Excretion in Rats,” Environmental Health Perspectives, Vol. 109, No. 3, 2001, pp. 289-294. doi:10.1289/ehp.01109289

[31]   A. Pods?dek, D. Sosnowska, M. Redzynia and B. Anders, “Antioxidant Capacity and Content of Brassica Oleracea Dietary Antioxidants,” International Journal of Food Science and Technology, Vol. 41, Supplement 1, 2006, pp. 49-58. doi:10.1111/j.1365-2621.2006.01260.x

[32]   S. M. Castro J. A. Saraiva, J. A. Lopes-da-Silva, I. Delgadillo, A. Van Loey, C. Smout and M. Hendrickx, “Effect of Thermal Blanching and of High Pressure Treatments on Sweet Green and Red Bell Pepper Fruits (Capsicum annuum L.),” Food Chemistry, Vol. 107, No. 4, 2008, pp. 1436-1449. doi:10.1016/j.foodchem.2007.09.074