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Gonçalves, Christophe; Guiné, Raquel; Gonçalves, Fernando; Costa, Danilea (2015)
Languages: English
Types: Conference object
Subjects: Conservation, Blueberry, Texture, Organic farming
In this study was evaluated the effect of production mode (organic versus conventional) on some physical-chemical properties of three blueberry cultivars (Duke, Bluecrop, Ozarkblue). The properties evaluated were caliber, moisture content, total soluble solids, acidity, color and texture. The effect of storage on these properties was also evaluated. For this, samples were analyzed at harvest and after 7 and 14 days of storage. This work showed that Duke blueberries had a higher diameter and a more intense coloration. It was also found that the Duke blueberries presented a harder and more elastic texture, when compared with the other cultivars at study.Cultivar Ozarkblue from conventional production mode showed at harvest the higher sugar content and for cv. Ozarkblue a trend for decreasing acidity along storage time, was further noticed. In respect to the production mode it was detected that the blueberries produced in organic farming were less acid and less sweet, but had a more intense blue color and were less elastic when compared with blueberries produced in conventional mode. The blueberry storage temperature (cold or at room temperature) did not meaningfully influence the chemical properties of blueberry, but influenced the physical properties, namely colour and texture.
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    • [1] Shi, J., Pan, Z., McHugh, T. H., Wood, D., Hirschberg, E., Olson, D.: “Drying and quality characteristics of fresh and sugar-infused blueberries dried with infrared radiation heating” LWT - Food Science and Technology, Vol. 41 (2008), pp. 1962-1972.
    • [2] Retamales, J. B., Mena, C., Lobos, G., Morales, Y.: “A regression analysis on factors affecting yield of highbush blueberries” Scientia Horticulturae, Vol. 186 (2015), pp. 7-14.
    • [3] Ribera, A. E., Reyes-Diaz, M., Alberdi, M., Zuñiga, G. E., Mora, M. L.: “antioxidant compounds in skin and pulp of fruits change among genotypes and maturity stages in highbush blueberry (Vaccinium corymbosum L.) grown in southern Chile” Journal of soil science and plant nutrition, Vol. 10 (2010), pp. 509-536.
    • [4] Lobos, G. A., Callow, P., Hancock, J. F.: “The effect of delaying harvest date on fruit quality and storage of late Highbush blueberry cultivars (Vaccinium corymbosum L.)” Postharvest Biology and Technology, Vol. 87 (2014), pp. 133-139.
    • [5] Sandhu, H. S., Wratten, S. D., Cullen, R.: “Organic agriculture and ecosystem services” Environmental Science & Policy, Vol. 13 (2010), pp. 1-7.
    • [6] Zielinska, M., Sadowski, P., Błaszczak, W.: “Freezing/thawing and microwave-assisted drying of blueberries (Vaccinium corymbosum L.)” LWT - Food Science and Technology, Vol. 62 (2015), pp. 555-563.
    • [7] NP-783: Derivados de Frutos e de Produtos Hortícolas. Preparação das Amostras Para Análise. Instituto Português da Qualidade, Lisboa, 1985.
    • [8] NP-1421: Géneros Alimentícios Derivados de Frutos e de Produtos Hortícolas. Determinação da Acidez. Instituto Português da Qualidade, Lisboa, 1977.
    • [9] R. Machado, R. Jesus. Avaliação de cultivares de mirtilo. Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM) - Universidade de Évora, Évora, 2012.
    • [10] M. B. Sousa. Mirtilo - Qualidade Pós-Colheita. Folhas Divulgação Agro 556 No8, 2007.
    • [11] Skupien, K.: “Evaluation of Chemical composition of fresh and frozen blueberry fruit (Vaccinium corymbosum L.)”. Acta Sci Pol Hortorum Cultus, Vol. 5 (2006), pp. 19-25.
    • [12] Kalt, W., McDonald, J.: “Chemical Composition of Lowbush Blueberry Cultivars”. Journal of American Society of Horticukltural Science, Vol. 121 (1996), pp. 142-146.
    • [13] Zheng, Y., Chien, W., Shiow, Y., Zheng, W.: “Effect of High-Oxygen Atmospheres on Blueberry Phenolics, Anthocyanins, and Antioxidant Capacity”. Journal of Agricultural and Food Chemistry, Vol. 51 (2003), pp.7162-7169.
    • [14] F. Rocha. Avaliação da cor e da Actividade antioxidante da polpa e do extrato de mirtilo (Vaccinium myrtillus) em pó. Universidade Federal Viçosa, Brasil, 2009.
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