{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,7]],"date-time":"2025-08-07T20:41:54Z","timestamp":1754599314621},"reference-count":41,"publisher":"Walter de Gruyter GmbH","issue":"1","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,1,21]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>\u201cGrada de Viseu\u201d is an indigenous hazelnut variety from Portugal, and it is considered by the producers as the most important variety in terms of production and productivity. Therefore, the aim of this study was to assess the influence of harvest year (2017\/2018\/2019) and location of production (Viseu\/Faia) on some physical and chemical properties of the variety \u201cGrada de Viseu,\u201d namely biometric parameters, colour, true and bulk densities, texture parameters (hardness and friability), and chemical composition. The results showed that the fruits of the samples harvested in 2019 had higher values of height, width, and thickness. Hazelnuts from 2018 had a clearer shell, independently of the location of production, but only the samples from Faia harvested in 2018 had a clearer kernel. As for the texture, the fruits grown in Viseu harvested in 2018 had a harder shell and was more resistant to fracture, whereas the sample from 2019 had a harder kernel. In all cases, fat was the major chemical component. The sample from 2019 had a water activity greater than 0.62, meaning that its stability was not guaranteed. \u201cGrada de Viseu\u201d from Faia in 2018 presented a higher induction period and, therefore, was the one with the highest oxidation stability. The year of production showed to be the best predictor for almost every chemical and biometric characteristics. In general, it was possible to verify that harvesting year and geographical location influence hazelnut characteristics.<\/jats:p>","DOI":"10.1515\/opag-2021-0061","type":"journal-article","created":{"date-parts":[[2022,1,24]],"date-time":"2022-01-24T13:00:28Z","timestamp":1643029228000},"page":"8-20","source":"Crossref","is-referenced-by-count":1,"title":["Influence of different parameters on the characteristics of hazelnut (var. Grada de Viseu) grown in Portugal"],"prefix":"10.1515","volume":"7","author":[{"given":"Ana Cristina","family":"Ferr\u00e3o","sequence":"first","affiliation":[{"name":"CERNAS-IPV Research Centre, Polytechnic Institute of Viseu , Viseu , Portugal"}]},{"given":"Raquel","family":"Guin\u00e9","sequence":"additional","affiliation":[{"name":"CERNAS-IPV Research Centre, Polytechnic Institute of Viseu , Viseu , Portugal"}]},{"given":"Elsa","family":"Ramalhosa","sequence":"additional","affiliation":[{"name":"CIMO, Polytechnic Institute of Bragan\u00e7a , Bragan\u00e7a , Portugal"}]},{"given":"Arminda","family":"Lopes","sequence":"additional","affiliation":[{"name":"DRAP-CENTRO, Quinta do Fontelo, Est. S. Jo\u00e3o da Carreira , Viseu , Portugal"}]},{"given":"Cl\u00e1udia","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Agrarian School of Viseu, Polytechnic Institute of Viseu , Viseu , Portugal"}]},{"given":"Hugo","family":"Martins","sequence":"additional","affiliation":[{"name":"Agrarian School of Viseu, Polytechnic Institute of Viseu , Viseu , Portugal"}]},{"given":"Paula","family":"Correia","sequence":"additional","affiliation":[{"name":"CERNAS-IPV Research Centre, Polytechnic Institute of Viseu , Viseu , Portugal"}]}],"member":"374","published-online":{"date-parts":[[2022,1,21]]},"reference":[{"key":"2022092113085812967_j_opag-2021-0061_ref_001","doi-asserted-by":"crossref","unstructured":"Cabo S, Morais MC, Aires A, Carvalho R, Pascual\u2010Seva N, Silva AP, et al. Kaolin and seaweed-based extracts can be used as middle and long-term strategy to mitigate negative effects of climate change in physiological performance of hazelnut tree. 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