Artículos Científicos

URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/14690

Examinar

Mostrando 1 - 5 de 5

Changes in food behavior during the first lockdown of COVID-19 pandemic: a multi-country study about changes in eating habits, motivations, and food-related behaviors
(ELSEVIER, 2022-02-10) Lamy, Elsa; Villalobos, Keylor; Viegas, Claudia; Rocha, Ada; Lucas, María Raquel; Tavares, Sofía; Capela e Silva, Fernando; Guedes, David; Laureati, Mónica; Zian, Zeineb; Salles Machado, Alessandra; Ellssel, Pierre; Freyer, Bernhard; González Rodrigo, Elena; Calzadilla, Jesús; Majewski, Edward; Prazeres, Ibrahim; Silva, Vlademir; Juračak, Josip; Platilová Vorlíčková, Lenka; Kamutali, Antonino; Tschá, Elizabeth Regina; Želvytė, Rasa; Monkeviciene, Ingrida; Elati, Jalila; De Souza Pinto, Ana María; Midori Castelo, Paula; Anzman-Frasca, Stephanie
The COVID-19 pandemic resulted in severe, unprecedented changes affecting the world population. Restrictions in mobility, social distancing measures, and the persistent social alarm, during the first period of pandemic, resulted in dramatic lifestyle changes and affected physical and psychological wellbeing on a global scale. An international research team was constituted to develop a study involving different countries about eating motivations, dietary habits and behaviors related with food intake, acquisition, and preparation. This study presents results of an online survey, carried out during the first lockdown, in 2020, assessing food-related behavior and how people perceived them to change, comparatively to the period preceding the COVID-19 outbreak. A total of 3332 responses, collected from 16 countries, were considered for analysis [72.8% in Europe, 12.8% in Africa, 2.2% in North America (USA) and 12.2% in South America]. Results suggest that the main motivations perceived to drive food intake were familiarity and liking. Two clusters were identified, based on food intake frequency, which were classified as “healthier” and “unhealthier”. The former was constituted by individuals with higher scholarity level, to whom intake was more motivated by health, natural concerns, and weight control, and less by liking, pleasure or affect regulation. The second cluster was constituted by individuals with a higher proportion of male and intake more influenced by affect-related motivations. During this period, a generalized lower concern with the convenience attributes of foods was noted (namely, choice of processed products and fast-food meals), alongside an increase in time and efforts dedicated to home cooking. Understanding the main changes and their underlying motivations in a time of unprecedented crisis is of major importance, as it provides the scientific support that allows one to anticipate the implications for the future of the global food and nutrition system and, consequently, to take the appropriate action.
Evaluation of the viability of microencapsulated Trichoderma longibrachiatum conidia as a strategy to prolong the shelf life of the fungus as a biological control agent
(PubMed Central (PMC), 2025-01-15) Arias-Chavarría, Luis Diego; Batista-Menezes, Diego; Orozco-Cayasso, Steffany; Vargas-Martínez, Alejandro; Vega-Baudrit, José Roberto; Montes de Oca-Vásquez, Gabriela
Trichoderma is an antagonistic fungus used commercially; however, the viability of these formulations is affected by biotic and abiotic factors. In this research, microcapsules of sodium alginate reinforced with nanocellulose and/or chitosan were developed to encapsulate T. longibrachiatum conidia and characterized by SEM, FTIR, and TGA. The viability of the microencapsulated conidia was evaluated through different temperatures (room temperature, 5°C and 37°C), as well as their in vitro antagonistic potential against Fusarium oxysporum. The formulations evaluated had encapsulation efficiencies above 92% and the microcapsules with alginate, chitosan, and nanocellulose maintained 100% viability at 37°C for 2 months. In addition, all formulations evaluated retained antagonistic ability against F. oxysporum. These findings support the use of alginate, nanocellulose and chitosan for the formulation of microcapsules to maintain the viability of T. longibrachiatum conidia over time and at different temperature conditions.
Fruit Characterization of Cocos Nucifera L. (ARECACEAE) Cultivars From the Pacific Coast of Costa Rica and the Philippines
(Kluwer Academic Publishers, 2000-10-01) Vargas, Alfonso; Blanco, Fabio A.
Tall coconut cultivars from the Pacific coast of Costa Rica and the Philippines (San Ramón, Tagnanán, and Laguna), were evaluated for fruit characteristics. Most of the introduced cultivars showed extremely large heterogeneity. A cluster analysis, based on the Ward method, classified the palms into four groups with high internal homogeneity. Some of the evaluated coconut palms from the Costa Rican Pacific area had nut characteristics similar to the San Ramon and Tagnanan palm groups but not to the Laguna group. At the association level used (semipartial R2 = 0.10), another group which included the remaining palms sampled from the Costa Rican Pacific coast was constituted.
Mudanças e reconfigurações da Agroindústria Sucroenergética Brasileira a partir da década de 1990: uma retrospectiva
(Universidade Federal Rural do Rio de Janeiro, (UFRRJ), 2023-05-31) Cerdas Vega, Gerardo
O artigo apresenta o processo de mudanças institucionais, organizacionais e políticas experimentado pelo complexo agroindustrial canavieiro no Brasil, em particular pelos grupos de maior poder econômico, concentrados no estado de São Paulo, a partir da década de 1990 até o ano de 2014. Esses grupos, denominados no contexto da pesquisa como Agroindústria Sucroenergética Brasileira (ASB), passaram de um modelo de organização setorial de corte burocrático e estado-cêntrico, para um de caráter mais aberto, flexível e diversificado no tocante aos atores participantes, mas no qual a presença e a participação do Estado brasileiro continuou como parte essencial das relações entre o poder estatal e a grande agricultura patronal canavieira.
Selection Response of Growth Rate in Rabbits for Meat Production
(International Academic Publisher Sciences, 1992-09-21) Estany, J.; Camacho, J.; Baselga, M.; Blasco, A.
Genetic and environmental trends in 2 lines of rabbit (B and R) selected on individual weight gain (WG) from weaning (4 wk) to slaughter (11 wk) were estimated using mixed model methodology. Line B was derived from the California breed and line R was a synthetic of stock of different origin. The data were collected from a single herd and comprised 7 718 individuals in line B and 9 391 in line R, the lines having 12 and 9 generations of selection respectively. Realized responses in the 2 lines were 2.7% and 2.2% of the initial mean per year respectively and showed that selection on WG was effective but was less than expected. Selection on slaughter weight (SW) and effects of selection on other economic traits are discussed. It is concluded that selection on either WG or SW is a simple method for improving growth rate in rabbit sire line stocks.

Examinar

Examinando Artículos Científicos por browse.metadata.rights "Attribution 4.0 International"