Patrimonio y turismo sostenible desde la ordenación del territorio: el caso del Pirineo Aragonés

Seed oil and seed oil byproducts of common purslane (Portulaca oleracea L.): A new insight to plant-based sources rich in omega-3 fatty acids

“…Seeds and seedcakes obtained from CE2 method contained the highest moisture content, while seeds had also the highest fat content and energy. Similar results have been reported by Vioque, Pastor, and Vioque (1994) who studied seed oils from several wild species and obtained yields within the same range of our study (18.2%). Seedcakes obtained from hot extraction (HE) had the highest fat content, which also indicates the lower oil extraction yield of hot extraction method comparing to cold extraction methods (45.7%, 61.1% and 63.1% for HE, cold extraction 1 (CE1) and cold extraction 2 (CE2) methods, respectively) since more oil remained in seedcakes after the extraction procedure (Fig.…”

“…Moreover, Delfan-Hosseini, Nayebzadeh, Mirmoghtadaie, Kavosi, and Hosseini (2017) evaluated three procedures for purslane seed oil extraction, namely solvent, cold press and microwave assisted cold press extraction and also observed a higher amount of linolenic acid than α-linolenic acid. In contrast, Vioque et al (1994) reported a different fatty acids profile in seed oils with palmitic and stearic acid being the most abundant fatty acids, while Sodeifian, Ardestani, Sajadian, and Moghadamian (2018) detected higher amounts of α-linolenic than linoleic acid in oils obtained with supercritical fluid extraction. These differences in the literature reports indicate that extraction method has a significant effect on fatty acids profile and optimization of extraction protocols is needed to obtain oils of the desired quality (Stroescu et al, 2013).…”

Políticas gubernamentales y difusión del turismo de interior en el marco del paradigma de la sostenibilidad: Brasil y España

“…Su origen lo encontramos sobre todo en el ámbito urbano, entre urbanitas que buscan experiencias auténticas y responsables con la naturaleza (Martínez, 2017). El mercado, a la vez, está atento a este movimiento y desarrolla nuevos productos turísticos para esa demanda emergente (Bielza, 2001;Gómez & Múgica, 2007;Sánchez & Cebrián, 2015).…”

Encroachment of shrubs into subalpine grasslands in the Pyrenees changes the plant-soil stoichiometry spectrum

“…Climatic warming is also expected to promote the expansion of woody species in subalpine and alpine regions in the Pyrenees (Grau et al 2013;Peñuelas et al 2016;Angulo et al 2019) and across Europe in the coming decades (Sanz-Elorza et al 2003;Körner and Paulsen 2004;Wookey et al 2009; IPCC 2013). The abandonment of subalpine and alpine grasslands is very apparent in the Pyrenees (northeastern Iberian Peninsula), where traditional extensive livestock grazing and the frequency of intentional fires to create or maintain pasture have substantially declined in the last century, mainly due to socio-economic changes in this area (Lasanta et al 2000;MacDonald et al 2000;Serrano et al 2000;Roura-Pascual et al 2005;Jiménez and Pujol 2010;Barrio et al 2013).…”