{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T13:01:59Z","timestamp":1778504519419,"version":"3.51.4"},"reference-count":50,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Chemistry"],"published-print":{"date-parts":[[2016]]},"abstract":"<jats:p>In recent years the consumption of small fruits has increased continuously and knowledge about the more suitable production requirements is essential. This study aims to evaluate the influence of harvest year and altitude on chemical composition of four blueberry cultivars, in order to create rentable opportunities for producers and minimize eventual losses in quality fruits. Dry mass, protein, fat, energy, free sugars, organic acids, and vitamin C contents were determined using HPLC-UV-DAD and spectrophotometric methods. Differences (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.05<\/mml:mn><\/mml:math>) in the concentrations of free sugars, organic acids, and vitamin C were found among years, while the altitude had no (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>p<\/mml:mi><mml:mo>&gt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.05<\/mml:mn><\/mml:math>) influence. Citric acid was the main organic acid and fructose the most abundant sugar in blueberries. Fruits of \u201cOzarkblue\u201d had the highest mass and volume whilst the \u201cBluecrop\u201d was the cultivar with highest crude protein and fat contents. \u201cGoldtraube\u201d showed the highest content of sucrose and organic acids and \u201cDuke\u201d had the highest content of fructose.<\/jats:p>","DOI":"10.1155\/2016\/8648609","type":"journal-article","created":{"date-parts":[[2016,5,9]],"date-time":"2016-05-09T17:03:44Z","timestamp":1462813424000},"page":"1-12","source":"Crossref","is-referenced-by-count":27,"title":["Effect of Harvest Year and Altitude on Nutritional and Biometric Characteristics of Blueberry Cultivars"],"prefix":"10.1155","volume":"2016","author":[{"given":"Sofia","family":"Correia","sequence":"first","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Berta","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"},{"name":"Department of Biology and Environment, University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Alfredo","family":"Aires","sequence":"additional","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Ademar","family":"Silva","sequence":"additional","affiliation":[{"name":"Department of Agronomy, University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Lu\u00eds","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Department of Zootechny, Veterinary and Animal Science Research Center (CECAV), University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Rosa","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Department of Agronomy, University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"Hortense","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Department of Agronomy, University of Tr\u00e1s-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal"}]},{"given":"C\u00e2ndida","family":"Freitas","sequence":"additional","affiliation":[{"name":"Mirtilusa-Sociedade de Produtores Horto-Frut\u00edcolas, Lda. 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