Results 11 to 20 of about 4,011 (173)

Characterization of the Antiproliferative Activity of Sargassum muticum Low and High Molecular Weight Polysaccharide Fractions [PDF]

Marine Drugs, 2023
The extract obtained by pressurized hot water extraction from Sargassum muticum, to recover the bioactive compound known as fucoidan, was fractionated using membranes of 100, 50, 30, 10, and 5 kDa, obtaining five retentates and the final permeate.
Lara Diego-González, Milena Álvarez-Viñas, Rosana Simón-Vázquez, Herminia Domínguez, Maria Dolores Torres, Noelia Flórez-Fernández   +5 more
doaj   +2 more sources

Effect of municipal biowaste derived biostimulant on nitrogen fate in the plant-soil system during lettuce cultivation [PDF]

Scientific Reports, 2023
A main concern of agriculture is to improve plant nutrient efficiency to enhance crop yield and quality, and at the same time to decrease the environmental impact caused by the lixiviation of excess N fertilizer application.
Ferdinando Fragalà, Ivana Puglisi, Elio Padoan, Enzo Montoneri, Piergiorgio Stevanato, Josè Maria Gomez, Natalia Herrero, Emanuele La Bella, Erika Salvagno, Andrea Baglieri   +9 more
doaj   +2 more sources

Andean Pseudocereal Flakes with Added Pea Protein Isolate and Banana Flour: Evaluation of Physical–Chemical, Microstructural, and Sensory Properties [PDF]

Foods
In order to obtain a highly nutritious extrudate, a combination of pseudocereals, vegetable protein, and banana flour, a fruit with high sensory acceptability, was used.
Briggith Leiva-Castro, Liliana Mamani-Benavente, Carlos Elías-Peñafiel, Raúl Comettant-Rabanal, Reynaldo Silva-Paz, Luis Olivera-Montenegro, Perla Paredes-Concepción   +6 more
doaj   +2 more sources

Effect of the Partial Use of Potato Flour and Enhancers on the Rheological, Nutritional and Cooking Properties of Dried Noodles

Biology and Life Sciences Forum, 2022
Wheat flour (WF) was replaced with potato flour (PF) at 10%, 20% and 30% (w/w) in combination with enhancers xanthan gum (XG) and wheat gluten (WG). The flour quality, rheological properties and noodle quality were analyzed.
Luis Olivera-Montenegro, Angie Condori, Rildo Ocan, Alejandro Marzano, Hugo Romero, Esteban Herrera   +5 more
doaj   +1 more source

Extraction and Characterization of Chamomile (Matricaria recutita L.) Essential Oil Using the Green Technology of Solvent-Free Microwave Extraction

Biology and Life Sciences Forum, 2022
This study aimed to assess the benefits of the solvent-free microwave extraction (SFME) on chamomile (Matricaria recutita L.) essential oil quality and yield compared to the extraction by steam distillation (SD). The oil obtained by SFME and SD presented
Esteban Herrera, Claudia Pacheco, Luis Olivera-Montenegro   +2 more
doaj   +1 more source

Mapping the density of giant trees in the Amazon. [PDF]

New Phytol
Summary Tall trees (height ≥ 60 m) are keystone elements of tropical forests, strongly influencing biodiversity, carbon storage, and ecosystem resilience. Yet, their density and spatial distribution remain poorly quantified, especially in remote Amazonian regions, limiting our understanding of their ecological roles and contribution to forest–climate ...
de Lima RB, da Silva DAS, Nunes MH, Bittencourt PRL, Groenendyk P, de Oliveira CP, Granato-Souza D, Caraciolo Ferreira RL, Aleixo da Silva JA, Aguirre-Gutiérrez J, Jackson T, de Matos Filho JR, Aparício PDS, da Silva JPG, de Toledo JJ, Guedes MC, de Almeida DRA, Higuchi N, Wagner FH, Ometto JP, Görgens EB.   +20 more
europepmc   +2 more sources

Toward a functional understanding of novel fire regimes in tropical forests. [PDF]

Am J Bot
Abstract Climate change and land‐use alterations are driving forest fires to unprecedented frequencies and intensities worldwide. Even wet tropical forests—historically rarely subjected to fire—are increasingly experiencing fire disturbances. The impact of wildfires on these forests is likely large, since many of their tree species are not adapted to ...
Pacuk D, van der Sleen P, Sterck FJ, van der Sande MT.   +3 more
europepmc   +2 more sources

Acumulación de biomasa en estacas de cuatro especies de Bursera en Oaxaca

Ciencia Ergo Sum, 2021
Se evalúa la acumulación de biomasa en estacas de cuatro especies de Bursera durante cuatro estaciones del año, en cinco sustratos bajo condiciones de invernadero.
Juan Ángel García-Aguilar, Jesús Jonathan jonathanluna_cedeno@hotmail.com, Gerardo Rodríguez-Ortiz, José Cristóbal Leyva-López   +3 more
doaj   +1 more source

Optimización de la dosis de oligogalacturónidos en la propagación vegetativa de dos clones de cacao (Theobroma cacao L.), bajo condiciones controladas en vivero

Terra Latinoamericana, 2023
La baja eficiencia de la propagación vegetativa del cacao a partir de esquejes obliga al uso de enraizantes. Esto motivó un estudio cuyo objetivo fue: optimizar la dosis de oligogalacturónidos en la propagación vegetativa de dos clones de cacao en ...
Juan José Reyes-Pérez, Luis Tarquino Llerena-Ramos, Juan Antonio Torres-Rodríguez, Luis Guillermo Hernández-Montiel   +3 more
doaj   +1 more source

Gasificación de biomasa

EASI: Ingeniería y Ciencias Aplicadas en la Industria, 2023
[Resumen]: La gasificación de biomasa es un proceso termoquímico que convierte materia orgánica en un gas de síntesis, útil en calderas o motores. Este gas contiene monóxido de carbono, hidrógeno, dióxido de carbono, metano, agua y nitrógeno, su composición y poder calorífico varían según las condiciones de trabajo, el tipo de biomasa y el agente ...
José-Luis Casteleiro-Roca, Francisco Zayas-Gato, Antonio Díaz-Longueira, Míriam Timiraos, Paula Arcano-Bea, Héctor Quintián, Esteban Jove, Álvaro Michelena, José Luis Calvo-Rolle   +8 more
openaire   +2 more sources