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Effect of genotype and crop year on the nutritional value of walnut virgin oil and defatted flour.
Sci Total Environ. 2018 Sep 01; 634:1092-1099.ST

Abstract

The present study analyses the health-promoting compounds of walnut oil and walnut defatted flour obtained using hydraulic pressing. To identify the cultivar effect, nine walnut varieties were harvested in the same plot for two years to control environmental and agricultural management effects on kernel chemical traits. Beyond the variability reported in the products obtained from the different cultivars analysed, the crop year showed a crucial effect in the nutritional value of walnut products. Specifically, the variability caused for the crop year in the concentration of oleic and linoleic acids, phytosterols, polyphenols, tocopherols, proteins and essential minerals (K, Mg, P, S, Cu, Fe, Mn, Mo, Ni) was greater that the reported for the genotype. These findings suggest that the nutritional value of walnut oil and walnut flour depends on the crop season largely than expected, even when average annual weather conditions are similar. As a result, focus must change in the study of cultivar effect on walnut products to a wider analysis of specific variables related to crop year conditions.

Authors+Show Affiliations

Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Castilla-La Mancha, Campus Universitario, Albacete, Spain. Electronic address: Adrian.Rabadan@uclm.es.Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Castilla-La Mancha, Campus Universitario, Albacete, Spain.Mushroom Research, Experimentation and Service Centre, Quintanar del Rey, Cuenca, Spain.Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Castilla-La Mancha, Campus Universitario, Albacete, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29660865

Citation

Rabadán, Adrián, et al. "Effect of Genotype and Crop Year On the Nutritional Value of Walnut Virgin Oil and Defatted Flour." The Science of the Total Environment, vol. 634, 2018, pp. 1092-1099.
Rabadán A, Pardo JE, Pardo-Giménez A, et al. Effect of genotype and crop year on the nutritional value of walnut virgin oil and defatted flour. Sci Total Environ. 2018;634:1092-1099.
Rabadán, A., Pardo, J. E., Pardo-Giménez, A., & Álvarez-Ortí, M. (2018). Effect of genotype and crop year on the nutritional value of walnut virgin oil and defatted flour. The Science of the Total Environment, 634, 1092-1099. https://doi.org/10.1016/j.scitotenv.2018.04.090
Rabadán A, et al. Effect of Genotype and Crop Year On the Nutritional Value of Walnut Virgin Oil and Defatted Flour. Sci Total Environ. 2018 Sep 1;634:1092-1099. PubMed PMID: 29660865.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of genotype and crop year on the nutritional value of walnut virgin oil and defatted flour. AU - Rabadán,Adrián, AU - Pardo,José E, AU - Pardo-Giménez,Arturo, AU - Álvarez-Ortí,Manuel, Y1 - 2018/04/12/ PY - 2018/01/25/received PY - 2018/04/05/revised PY - 2018/04/06/accepted PY - 2018/4/18/pubmed PY - 2018/6/15/medline PY - 2018/4/18/entrez KW - Crop season KW - Environment KW - Essential minerals KW - Human health KW - Juglans regia L. KW - Nuts SP - 1092 EP - 1099 JF - The Science of the total environment JO - Sci Total Environ VL - 634 N2 - The present study analyses the health-promoting compounds of walnut oil and walnut defatted flour obtained using hydraulic pressing. To identify the cultivar effect, nine walnut varieties were harvested in the same plot for two years to control environmental and agricultural management effects on kernel chemical traits. Beyond the variability reported in the products obtained from the different cultivars analysed, the crop year showed a crucial effect in the nutritional value of walnut products. Specifically, the variability caused for the crop year in the concentration of oleic and linoleic acids, phytosterols, polyphenols, tocopherols, proteins and essential minerals (K, Mg, P, S, Cu, Fe, Mn, Mo, Ni) was greater that the reported for the genotype. These findings suggest that the nutritional value of walnut oil and walnut flour depends on the crop season largely than expected, even when average annual weather conditions are similar. As a result, focus must change in the study of cultivar effect on walnut products to a wider analysis of specific variables related to crop year conditions. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/29660865/Effect_of_genotype_and_crop_year_on_the_nutritional_value_of_walnut_virgin_oil_and_defatted_flour_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(18)31254-3 DB - PRIME DP - Unbound Medicine ER -