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Article: A New Laboratory Scale Olive Oil Extraction Method with Comparative Characterization of Phenolic and Fatty Acid Composition.

Ferro, Miguel D / Cabrita, Maria João / Herrera, José M / Duarte, Maria F

2023 Volume 12, Issue 2

Abstract: The establishment of operation protocols for olive oil (OO) extraction at non-industrial scale is crucial for research purposes. Thus, the present study proposes a simple and cost-effective method for OO extraction at the laboratory scale (LS) level. To ... ...

Abstract	The establishment of operation protocols for olive oil (OO) extraction at non-industrial scale is crucial for research purposes. Thus, the present study proposes a simple and cost-effective method for OO extraction at the laboratory scale (LS) level. To validate the proposed methodology, industrial OO extraction (IS) was performed in parallel, using the same cultivars ‘Galega vulgar’ (GV), ‘Cobrançosa’ (COB) and ‘Arbequina’ (ARB) collected from the same orchards, within the same period. Obtained results showed highest extractability for COB and ARB, of about 53%, while GAL showed 50%. All produced OO showed values lower than the regulated limits for the physicochemical parameters (acidity, K232, K268 and ΔK), classifying them as extra virgin OO (EVOO). Highest total phenolic content was observed for COB, with no significant differences (p-value > 0.05) between extraction methods. Regarding fatty acid composition, oleic acid (C18:1) showed the lowest percentage for ARB, with about 66% and 68%, for LS and IS, respectively, and the highest for GV with about 72% for both LS and IS. Furthermore, all samples from both extraction methods were compared to the European Community Regulation, with fatty acid composition within the regulated levels for EVOO. This work showed promising results regarding extraction yields and OO extractability, as well as its quality parameters.
Language	English
Publishing date	2023-01-13
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704223-6
ISSN	2304-8158
ISSN	2304-8158
DOI	10.3390/foods12020380
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: A New Laboratory Scale Olive Oil Extraction Method with Comparative Characterization of Phenolic and Fatty Acid Composition

Ferro, Miguel D. / Cabrita, Maria João / Herrera, José M. / Duarte, Maria F.

Foods. 2023 Jan. 13, v. 12, no. 2

2023

Abstract	The establishment of operation protocols for olive oil (OO) extraction at non-industrial scale is crucial for research purposes. Thus, the present study proposes a simple and cost-effective method for OO extraction at the laboratory scale (LS) level. To validate the proposed methodology, industrial OO extraction (IS) was performed in parallel, using the same cultivars ‘Galega vulgar’ (GV), ‘Cobrançosa’ (COB) and ‘Arbequina’ (ARB) collected from the same orchards, within the same period. Obtained results showed highest extractability for COB and ARB, of about 53%, while GAL showed 50%. All produced OO showed values lower than the regulated limits for the physicochemical parameters (acidity, K232, K268 and ΔK), classifying them as extra virgin OO (EVOO). Highest total phenolic content was observed for COB, with no significant differences (p-value > 0.05) between extraction methods. Regarding fatty acid composition, oleic acid (C18:1) showed the lowest percentage for ARB, with about 66% and 68%, for LS and IS, respectively, and the highest for GV with about 72% for both LS and IS. Furthermore, all samples from both extraction methods were compared to the European Community Regulation, with fatty acid composition within the regulated levels for EVOO. This work showed promising results regarding extraction yields and OO extractability, as well as its quality parameters.
Keywords	acidity ; cost effectiveness ; cultivars ; fatty acid composition ; oleic acid ; olive oil
Language	English
Dates of publication	2023-0113
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article ; Online
ZDB-ID	2704223-6
ISSN	2304-8158
ISSN	2304-8158
DOI	10.3390/foods12020380
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Making olive oil sustainable.

Moreira, Francisco / Herrera, José M / Beja, Pedro

Science (New York, N.Y.)

2019 Volume 365, Issue 6456, Page(s) 873

MeSH term(s)	Agricultural Irrigation ; Biodiversity ; Olive Oil ; Portugal ; Product Packaging ; Sustainable Development
Chemical Substances	Olive Oil
Language	English
Publishing date	2019-08-26
Publishing country	United States
Document type	Letter
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.aay7899
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Article: Plasmon Induced Photocatalysts for Light-Driven Nanomotors.

Contreras, Enrique / Palacios, Christian / Becerril-Castro, I Brian / Romo-Herrera, José M

Micromachines

2021 Volume 12, Issue 5

Abstract: Micro/nanomachines (MNMs) correspond to human-made devices with motion in aqueous solutions. There are different routes for powering these devices. Light-driven MNMs are gaining increasing attention as fuel-free devices. On the other hand, Plasmonic ... ...

Abstract	Micro/nanomachines (MNMs) correspond to human-made devices with motion in aqueous solutions. There are different routes for powering these devices. Light-driven MNMs are gaining increasing attention as fuel-free devices. On the other hand, Plasmonic nanoparticles (NPs) and their photocatalytic activity have shown great potential for photochemistry reactions. Here we review several photocatalyst nanosystems, with a special emphasis in Plasmon induced photocatalytic reactions, as a novel proposal to be explored by the MNMs community in order to extend the light-driven motion of MNMs harnessing the visible and near-infrared (NIR) light spectrum.
Language	English
Publishing date	2021-05-19
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2620864-7
ISSN	2072-666X
ISSN	2072-666X
DOI	10.3390/mi12050577
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Article: Preserving wintering frugivorous birds in agro‐ecosystems under land use change: Lessons from intensive and super‐intensive olive orchards

Morgado, Rui / Pedroso, Rui / Porto, Miguel / Herrera, José M. / Rego, Francisco / Moreira, Francisco / Beja, Pedro

Journal of applied ecology. 2021 Dec., v. 58, no. 12

2021

Abstract: Fleshy fruit production is becoming more intensive worldwide, but how this affects frugivorous birds is poorly known. In the Mediterranean region, intensive and super‐intensive olive orchards are fast expanding, potentially affecting millions of ... ...

Abstract	Fleshy fruit production is becoming more intensive worldwide, but how this affects frugivorous birds is poorly known. In the Mediterranean region, intensive and super‐intensive olive orchards are fast expanding, potentially affecting millions of wintering songbirds. Here, we test the idea that intensification may benefit frugivorous birds, at least locally, due to increased fruit availability, while negatively affecting the wider wintering bird community due to intensive management, structural simplification and landscape homogenisation. We estimated olive abundance and surveyed birds in early, mid‐ and late winter, at traditional, intensive and super‐intensive orchards in southern Portugal. We used Hierarchical Modelling of Species Communities to relate species richness, prevalence and abundance to management intensity, winter period, olive availability and landscape context, and evaluated the role of frugivory in modulating observed responses. Olive availability was much higher throughout the winter in more intensive than in traditional orchards, both in trees and on the ground. Frugivorous bird abundance was higher in more intensive orchards, and the most abundant frugivorous species (blackcap, song thrush, robin) were positively affected by olive availability and/or increasing landscape cover by olive orchards, while intensification level had relatively minor effects after accounting for other variables. Non‐frugivorous richness and abundance were higher in traditional orchards, and many non‐frugivorous species had lower prevalence in more intensive orchards or were negatively affected by landscapes dominated by olive cultivation. Synthesis and applications. While negatively affecting the wider bird community, our results suggest that olive farming intensification can contribute to sustaining large numbers of frugivorous birds in the Mediterranean region. As frugivorous birds are not seen as damaging by olive farmers, there is an opportunity to promote their conservation in intensive and super‐intensive orchards, which requires management to increase habitat heterogeneity, and to reduce risks such as mortality associated with mechanical harvest and contamination with pesticide residues. Overall, we recommend that efforts to manage farmland biodiversity should consider the impacts and conservation opportunities of fruit crop intensification.
Keywords	agroecosystems ; applied ecology ; frugivores ; fruits ; habitats ; homogenization ; land use change ; landscapes ; mechanical harvesting ; mortality ; olives ; pesticides ; species richness ; winter ; Mediterranean region ; Portugal
Language	English
Dates of publication	2021-12
Size	p. 2975-2986.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	410405-5
ISSN	1365-2664 ; 0021-8901
ISSN (online)	1365-2664
ISSN	0021-8901
DOI	10.1111/1365-2664.14029
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Monitoring and Identification of Agricultural Crops through Multitemporal Analysis of Optical Images and Machine Learning Algorithms.

Espinosa-Herrera, José M / Macedo-Cruz, Antonia / Fernández-Reynoso, Demetrio S / Flores-Magdaleno, Héctor / Fernández-Ordoñez, Yolanda M / Soria-Ruíz, Jesús

Sensors (Basel, Switzerland)

2022 Volume 22, Issue 16

Abstract: The information about where crops are distributed is useful for agri-environmental assessments, but is chiefly important for food security and agricultural policy managers. The quickness with which this information becomes available, especially over ... ...

Abstract	The information about where crops are distributed is useful for agri-environmental assessments, but is chiefly important for food security and agricultural policy managers. The quickness with which this information becomes available, especially over large areas, is important for decision makers. Methodologies have been proposed for the study of crops. Most of them require field survey for ground truth data and a single crop map is generated for the whole season at the end of the crop cycle and for the next crop cycle a new field survey is necessary. Here, we present models for recognizing maize (
MeSH term(s)	Agriculture ; Algorithms ; Crops, Agricultural ; Machine Learning ; Medicago sativa ; Zea mays
Language	English
Publishing date	2022-08-16
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s22166106
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Article ; Online: A distribution-oriented approach to support landscape connectivity for ecologically distinct bird species.

Herrera, José M / Alagador, Diogo / Salgueiro, Pedro / Mira, António

PloS one

2018 Volume 13, Issue 4, Page(s) e0194848

Abstract: Managing landscape connectivity is a widely recognized overarching strategy for conserving biodiversity in human-impacted landscapes. However, planning the conservation and management of landscape connectivity of multiple and ecologically distinct ... ...

Abstract	Managing landscape connectivity is a widely recognized overarching strategy for conserving biodiversity in human-impacted landscapes. However, planning the conservation and management of landscape connectivity of multiple and ecologically distinct species is still challenging. Here we provide a spatially-explicit framework which identifies and prioritizes connectivity conservation and restoration actions for species with distinct habitat affinities. Specifically, our study system comprised three groups of common bird species, forest-specialists, farmland-specialists, and generalists, populating a highly heterogeneous agricultural countryside in the southwestern Iberian Peninsula. We first performed a comprehensive analysis of the environmental variables underlying the distributional patterns of each bird species to reveal generalities in their guild-specific responses to landscape structure. Then, we identified sites which could be considered pivotal in maintaining current levels of landscape connectivity for the three bird guilds simultaneously, as well as the number and location of sites that need to be restored to maximize connectivity levels. Interestingly, we found that a small number of sites defined the shortest connectivity paths for the three bird guilds simultaneously, and were therefore considered key for conservation. Moreover, an even smaller number of sites were identified as critical to expand the landscape connectivity at maximum for the regional bird assemblage as a whole. Our spatially-explicit framework can provide valuable decision-making support to conservation practitioners aiming to identify key connectivity and restoration sites, a particularly urgent task in rapidly changing landscapes such as agroecosystems.
MeSH term(s)	Agriculture ; Animals ; Biodiversity ; Birds/physiology ; Conservation of Natural Resources ; Decision Making ; Ecology ; Ecosystem ; Female ; Forests ; Geography ; Male ; Orientation, Spatial ; Portugal ; Reproducibility of Results ; Spain ; Species Specificity
Language	English
Publishing date	2018
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0194848
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Road verges provide connectivity for small mammals: A case study with wood mice (Apodemus sylvaticus) in an agro-silvo pastoral system

Galantinho, Ana / Alpizar-Jara, Russell / Carvalho, Filipe / Eufrázio, Sofia / Herrera, José M / Mira, António / Silva, Carmo

Journal of environmental management. 2020 Mar. 15, v. 258

2020

Abstract: Roads disrupt landscape connectivity for many terrestrial mammals. These infrastructures can be barriers to movement thereby threatening population persistence. Nonetheless, small mammals may use road verges as habitat or corridor, thus increasing ... ...

Abstract	Roads disrupt landscape connectivity for many terrestrial mammals. These infrastructures can be barriers to movement thereby threatening population persistence. Nonetheless, small mammals may use road verges as habitat or corridor, thus increasing migration across intensively managed landscapes. However, in well-preserved habitats where road verges show a similar vegetation structure to surrounding areas, their role is still unknown. Road verges would have an important role as fine-scale connectivity providers for small mammals in a well-preserved habitat depending on land management on road surroundings. We aimed to quantify the effects of road verges and paved lanes on the fine-scale landscape connectivity for the wood mouse (Apodemus sylvaticus) in a well-preserved Mediterranean woodland. Additionally, we assessed the impact on connectivity of vegetation cutting on verges and of management in surrounding areas (i.e. firebreaks, grazing, ploughing and cork stripping). We quantified connectivity using graph theory based on two years of capture-recapture data. We compared a set of connectivity metrics (derived from the probability of connectivity index) in a road area and in a virtual roadless scenario. We found that the presence of the road reduced overall fine-scale landscape connectivity, acting as a partial barrier for wood mice movement. However, verges had a key role in promoting movement on road surroundings. Vegetation cutting on verges, and land ploughing in the surrounding landscape were the only management activities compromising connectivity. Our study supports the already known role of road verges as habitat corridors for small mammals. However, it goes beyond existing knowledge by quantifying the connectivity enhancement provided by road verges and demonstrating that this role is highly relevant even in well-preserved landscapes. Therefore, our findings emphasize the critical role of road verges and suggest important management options to enhance landscape connectivity for small mammals.
Keywords	Apodemus sylvaticus ; biological corridors ; case studies ; cork ; cutting ; fire break ; grazing ; habitat connectivity ; land management ; landscapes ; mark-recapture studies ; mathematical theory ; pastoralism ; plowing ; probability ; roads ; small mammals ; vegetation structure ; woodlands
Language	English
Dates of publication	2020-0315
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	184882-3
ISSN	1095-8630 ; 0301-4797
ISSN (online)	1095-8630
ISSN	0301-4797
DOI	10.1016/j.jenvman.2019.110033
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Plasmonic foam platforms for air quality monitoring.

Becerril-Castro, I Brian / Munoz-Munoz, Franklin / Castro-Ceseña, Ana B / González, Ana L / Alvarez-Puebla, Ramon A / Romo-Herrera, Jose M

Nanoscale

2021 Volume 13, Issue 3, Page(s) 1738–1744

Abstract: Plasmonic reversible gas sensors are of paramount importance for the monitoring of indoor environments. Herein, we design and engineer a plasmonic foam, with a high surface area, confined inside a capillary glass tube for the live monitoring of carbon ... ...

Abstract	Plasmonic reversible gas sensors are of paramount importance for the monitoring of indoor environments. Herein, we design and engineer a plasmonic foam, with a high surface area, confined inside a capillary glass tube for the live monitoring of carbon monoxide (CO) in closed environments using surface-enhanced resonance Raman scattering. The illumination of the sensor with light during the flow of air allows the live monitoring of the concentration of atmospheric CO through surface-enhanced resonance Raman scattering. The sensor was prepared with a detection range from 10 to 40 ppm, due to health needs. The results show a sensitive, selective, reversible and robust sensor applicable to the monitoring of CO levels but also to other gas species upon appropriate functionalization.
Language	English
Publishing date	2021-01-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2515664-0
ISSN	2040-3372 ; 2040-3364
ISSN (online)	2040-3372
ISSN	2040-3364
DOI	10.1039/d0nr07686d
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Article: Mature non-native plantations complement native forests in bird communities: canopy and understory effects on avian habitat preferences

Rodríguez-Pérez, Javier / Herrera, José M / Arizaga, Juan

Forestry. 2018 Apr. 01, v. 91, no. 2

2018

Abstract: The habitat composition of mature non-native plantations may provide a different set of resources to that of native forests, and these differences may influence species communities. We studied a bird community in the northern Iberian Peninsula to ... ...

Abstract	The habitat composition of mature non-native plantations may provide a different set of resources to that of native forests, and these differences may influence species communities. We studied a bird community in the northern Iberian Peninsula to understand whether habitat composition in either mature non-native plantations or native forests generated differences in the habitat associations of each bird species as well as the composition of the bird community. We sampled 140 4-ha plots, measuring habitat composition at both the canopy and the understory level using remote sensing data and field surveys, respectively. Using a fixed census in each plot, we also studied the bird species composition and analysed the species-specific associations for various habitat variables at the canopy and understory level. We found that mature plantations differed in understory level from native forest, but these differences in habitat did not translate into differences in bird species composition between forest types. Species–habitat associations were on average stronger at the understory compared to the canopy level, which suggests that a combination of field and remote sensing data might better represent the species-specific response to forest resources when measuring the assembly of bird communities in mature plantations. This work suggests the fact that the combination of different levels of forest resources, such as that provided by mature non-native plantations and native forests, is able to support a rich bird community.
Keywords	birds ; canopy ; forest resources ; forest types ; habitat preferences ; habitats ; plantations ; spatial data ; species diversity ; surveys ; understory ; Iberian Peninsula
Language	English
Dates of publication	2018-0401
Size	p. 177-184.
Publishing place	Oxford University Press
Document type	Article
ZDB-ID	1466705-8
ISSN	1464-3626 ; 0015-752X
ISSN (online)	1464-3626
ISSN	0015-752X
DOI	10.1093/forestry/cpx053
Database	NAL-Catalogue (AGRICOLA)

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