26 documents found, page 1 of 3
Potential use of the ATR-FTIR spectroscopy as an almond cultivar recognition to...
Lamas, Sandra; Rodrigues, Nuno; Santamaria-Echart, Arantzazu; Palu, Igor; Manhique, Jocyla; Herrero, Baudilio; Lopéz-Cortés, IsabelThree almond cultivars (Lauranne, Marinada, and Vairo) were studied, considering morphological parameters that showed statistical cultivar-dependence but not enabled accurate cultivar recognition. Alternatively, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was applied to whole endocarp, kernel, and ground almonds. Both transmittance spectra and respective derivatives (3400–280...
Carob and pomegranate extracts enhance plant defence mechanisms against olive a...
Antón-Domínguez, Begoña I.; Sánchez-Pereira, Luiza; Lamas, Sandra; Rodrigues, Nuno; Baptista, Paula; Agustí-Brisach, CarlosOlive anthracnose (OA), caused by Colletotrichum species, is one of the most economically damaging disease in olive sector. This study was focused to identify sustainable control alternatives by evaluating the effect of pomegranate and carob extracts against OA and elucidating their mode of action. In vitro assays on mycelial growth, conidial production, and germination, and appressoria formation of C. godetiae...
Application of the FTIR technique as a non‐invasive tool to discriminate Portug...
Lamas, Sandra; Ruano, Daniela Filipa Magalhães; Dias, Francisco; Barreiro, M.F.; Pereira, J.A.; Peres, António M.; Rodrigues, NunoThree Portuguese olive oils with PDO (‘Azeite do Alentejo Interior’, ‘Azeites da Beira Interior’ and ‘Azeite de Trás-os-Montes’) were studied considering their physicochemical quality, antioxidant capacity, oxidative stability, total phenols content, gustatory sensory sensations and Fourier transform infrared (FTIR) spectra. All oils fulfilled the legal thresholds of EVOOs and the PDO's specifications. Olive oi...
Identification of almond’s variety based on FTIR spectra of ground samples
Lamas, Sandra; Rodrigues, Nuno; Santamaria-Echart, Arantzazu; Palu, Igor; Manchique, Jocyla R.; Lopéz-Cortés, Isabel; Pereira, José AlbertoAlmond's traceability is of utmost relevance.
Estudo das condições de termobatedura, à escala piloto, no rendimento de extraç...
Ruano, Daniela Filipa Magalhães; Souza, Thiago Pereira Pio de; Ferreiro, Nuno Manuel; Lamas, Sandra; Peres, António M.; Rodrigues, NunoA quantidade de pasta de azeitona (e, indiretamente, a área de transferência de calor), o tempo e a temperatura de batedura, influenciam o rendimento de extração, parâmetros de qualidade, actividade antioxidante (DPPH e fenóis totais), e perfil sensorial do azeite extraído.
Identification of the geographical origin of Spanish beech nuts, Fagus sylvatic...
Lamas, Sandra; Rodrigues, Nuno; Herrero, Baudilio; Casal, Susana; Cruz, Rebeca; Pereira, José Alberto; Peres, António M.In general, dry nuts, such as hazelnuts, almonds. chestnuts and walnuts, composition has been investigated and are well characterized. Nevertheless, other less unknown nuts, such as beech nuts have little information. Beech nuts proceed from the Fagus sylvatica L. tree, which is prevalent in central and southem Europe, and is commonly used for oil extraction. A study carried out by Obranovic et al. found that t...
Estudo das condições de termobatedura, à escala piloto, no rendimento de extraç...
Ruano, Daniela Filipa Magalhães; Souza, Thiago Pereira Pio de; Ferreiro, Nuno Manuel; Lamas, Sandra; Peres, António M.; Rodrigues, NunoPara esclarecer o impacto da quantidade de pasta de azeitona (e, indiretamente, da área de transferência de calor), do tempo e da temperatura de batedura, no rendimento de extração, qualidade (acidez, índice de peróxidos e coeficientes de extinção), atividade antioxidante (DPPH e fenóis totais), e perfil sensorial do azeite desenvolveu-se um trabalho, realizado à escala laboratorial com o sistema Abencor. As co...
Identification of almond’s variety based on FTIR spectra of ground samples
Lamas, Sandra; Rodrigues, Nuno; Santamaria-Echart, Arantzazu; Palu, Igor; Manchique, Jocyla R.; Lopéz-Cortés, Isabel; Pereira, José AlbertoAttenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was employed to develop multivariate discriminant models for almond cultivar identification. For that, raw transmittance spectra were recorded for ground almonds in the range from 4000 to 500 cm-1 (Figure 1a). As can be inferred from the figure, The ATR-FTIR analysis unveiled distinct transmittance band spectral profiles, particular...
Identification of the geographical origin of Spanish beech nuts, Fagus sylvatic...
Lamas, Sandra; Rodrigues, Nuno; Herrero, Baudilio; Casal, Susana; Cruz, Rebeca; Pereira, José Alberto; Peres, António M.In general, dry nuts, such as hazelnuts, almonds, chestnuts and walnuts, composition has been investigated and are well characterized. Nevertheless, other less unknown nuts, such as beech nuts have little information. Beech nuts proceed from the Fagus sylvatica L. tree, which is prevalent in central and southern Europe, and is commonly used for oil extraction. A study carried out by Obranovic et al.1 found that...
Different approaches to Olive Pomace valorisation
Cordeiro, Ana; Lamas, Sandra; Rodrigues, Ana; Cadavez, Vasco; Silvério, Sara; Peres, António M.; Rodrigues, Lígia R.; Amorim, CláudiaOlive pomace (OP) is a substantial by-product, rich in lignocellulosic materials and water, obtained following the extraction of olive oil. It comprises the following components: olive skins, pulp, seeds, and stones. As global olive oil production continues to rise, the management and utilisation of OP have become increasingly important from both an economic and an environmental perspective [1]. In this study, ...