7 documents found, page 1 of 1
Editorial: Recent Advances of Near Infrared Applications in Fruits and Byproducts
Hernández-Hierro, José Miguel; Cozzolino, Daniel; Feng, Chao-Hui; Rato, Ana ELisa; Nogales-Bueno, JulioNear infrared spectroscopy (NIRS) has been widely applied to fruit and fruit byproducts in order to ensure their safety and quality. In the last decades, mainly benchtop devices have been utilized for the development of at-line methods for qualitative and quantitative control. These methods have been limited ...
Comparative study on the use of three different near infrared spectroscopy reco...
Nogales-Bueno, Julio; Feliz, Luis; Baca-Bocanegra, Berta; Hernandéz-Hierro, José Miguel; Heredia, Francisco José; Mota Barroso, João ManuelWalnut fruit (Juglans regia L.) is an internationally well-known product with an important tradition of consumption. Its health benefits and economic importance in the food industry make this nut an interesting research topic. In this feasibility study, 200 walnut samples of 5 different varieties were collected and their near infrared (NIR) spectra were recorded with 3 different devices: a benchtop Fourier tran...
Assessment of Total Fat and Fatty Acids in Walnuts Using Near-Infrared Hyperspe...
Nogales-Bueno, Julio; Baca-Bocanegra, Berta; Hernández-Hierro, José Miguel; Garcia, Raquel; Mota Barroso, João; Heredia, Francisco José; Rato, Ana Elisa“Persian” walnut (Juglans Regia L.) is one of the most consumed tree nuts in the world. It is rich in several bioactive compounds, with polyunsaturated and monounsaturated fatty acids (PUFA and MUFA) appearing at high concentrations. Walnut consumption protects against cardiovascular, carcinogenic, and neurological disorders. The fatty acid profile has usually been determined by gas chromatography, a reliable a...
Influence of wine pH and ethanol content on the fining efficacy of proteins fro...
Baca-Bocanegra, Berta; Gonçalves, Sandra; Nogales-Bueno, Julio; Mansinhos, Inês; Heredia, Francisco José; Hernández-Hierro, José Miguel; Romano, A.Wine color and limpidity are important aspects of consumer preferences. The alteration of these parameters can damage wine’s appearance but also its mouthfeel characteristics due to its relationship with attributes such as bitterness and astringency. Fining is a practice usually used in enology to modulate undesirable wine organoleptic attributes. However, there are several factors that influence this technique...
Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic mat...
Serrano, João; Shahidian, Shakib; Silva, José Marques; Paixão, Luís; Carvalho, Mário; Moral, Francisco; Nogales-Bueno, Julio; Teixeira, Ricardo F.M.The Montado is an agro-silvo-pastoral ecosystem characteristic of the Mediterranean region. Pasture productivity and, consequently, the possibilities for intensifying livestock production depend on soil fertility. Soil organic matter (SOM) and phosphorus (P2O5) are two indicators of the evolution of soil fertility in this ecosystem. However, their conventional analytical determination by reference laboratory me...
Comparative study on the use of three different near infrared spectroscopy reco...
Nogales-Bueno, Julio; Feliz, Luis; Baca-Bocanegra, Berta; Hernandez-Hierro, José Miguel; Heredia, Francisco José; Barroso, João Mota; Rato, Ana ElisaWalnut fruit (Juglans regia L.) is an internationally well-known product with an important tradition of consumption. Its health benefits and economic importance in the food industry make this nut an interesting research topic. In this feasibility study, 200 walnut samples of 5 different varieties were collected and their near infrared (NIR) spectra were recorded with 3 different devices: a benchtop Fourier tran...
Response of mycorrhizal Touriga Nacional variety grapevines to high temperature...
Nogales, Amaia; Ribeiro, Hugo; Nogales-Bueno, Julio; Hansen, Lee D.; Gonçalves, Elsa F.; Coito, João L.; Rato, Ana Elisa; Peixe, Augusto; Viegas, WandaHeat stress negatively affects several physiological and biochemical processes in grapevine plants. In this work, two new methods, calorespirometry, which has been used to determine temperature adaptation in plants, and near-infrared (NIR) spectroscopy, which has been used to determine several grapevine-related traits and to discriminate among varieties, were tested to evaluate grapevine response to high temper...