Results 1 to 10 of about 206 (81)

Factors That Affect the Accumulation of Strecker Aldehydes in Standardized Wines: The Importance of pH in Oxidation [PDF]

Molecules, 2022
Strecker aldehydes (SA) can be formed in wine from the degradation of Strecker and, to a lesser degree, via the oxidation of higher alcohols. The objective of this article is to assess the magnitude of the differences introduced by wine compositional ...
Almudena Marrufo-Curtido, Vicente Ferreira, Ana Escudero   +2 more
doaj   +2 more sources

An Index for Wine Acetaldehyde Reactive Potential (ARP) and Some Derived Remarks about the Accumulation of Acetaldehyde during Wine Oxidation [PDF]

Foods, 2022
The amount of acetaldehyde accumulated during wine oxidation was very small, far less than expected. The existence of polyphenols specifically reactive to acetaldehyde was postuled.
Almudena Marrufo-Curtido, Vicente Ferreira, Ana Escudero   +2 more
doaj   +2 more sources

Chromatographic Profiling of Artisanal Chocolates: Volatile Composition and Methylxanthines as Markers of Cocoa Content. [PDF]

J Food Sci
ABSTRACT The increasing demand for artisanal chocolates highlights the importance of reliable analytical strategies for quality assurance and product authentication. In this study, 45 Brazilian artisanal chocolates (36%–100% cocoa) were characterized by integrated chromatographic and chemometric analyses. Seventeen representative samples were evaluated
Altissimo J, Cardoso I, Araújo BQ, Pereira AR, Almeida JVM, Santos NAD, Costa VC, Carneiro Lima MTWD.   +7 more
europepmc   +2 more sources

Ultrasound-Assisted Extraction of Stilbenes from Grape Canes [PDF]

Molecules, 2016
An analytical ultrasound-assisted extraction (UAE) method has been optimized and validated for the rapid extraction of stilbenes from grape canes. The influence of sample pre-treatment (oven or freeze-drying) and several extraction variables (solvent ...
Zulema Piñeiro, Almudena Marrufo-Curtido, Maria Jose Serrano, Miguel Palma   +3 more
doaj   +2 more sources

Amphimeriasis in Ecuador—Prevalence, Knowledge, and Socio-Cultural Practices Among Indigenous Chachi and Montubios Populations: A Mixed-Methods Cross-Sectional Study [PDF]

Tropical Medicine and Infectious Disease
Amphimerus, a liver fluke, is the causative agent of amphimeriasis, a foodborne disease acquired thought the consumption of infected raw or undercooked river fish—a practice embedded in traditional culinary customs. Amphimeriasis represents a significant
Richar Rodríguez-Hidalgo, William Cevallos, Maritza Celi-Erazo, Verónica Vargas-Roman, Luvin Oviedo-Racines, José Buitrón, Ayelén Lema, Manuel Calvopina   +7 more
doaj   +2 more sources

SUBSTRATOS ALTERNATIVOS PARA PRODUÇÃO DE MUDAS DE MORINGA EM MOÇAMBIQUE

Ciência Agrícola, 2021
A produção de mudas de boa qualidade é fator fundamental para o sucesso da silvicultura. No entanto, essa atividade é dependente da escolha do substrato que promova ótimo desenvolvimento das mudas.
Tiago Otílio Baptista Pedro, Cássimo Lacerda Romua, Caetano Miguel Lemos Serrote   +2 more
doaj   +1 more source

Can aldehyde accumulation rates of red wines undergoing oxidation be predicted in accelerated conditions? The controverted role of aldehyde–polyphenol reactivity

Journal of the Science of Food and Agriculture, Volume 102, Issue 9, Page 3869-3878, July 2022., 2022
Abstract BACKGROUND The accumulation of acetaldehyde and Strecker aldehydes during wine oxidation is detrimental to quality and often determines wine shelf‐life. Knowing in advance the specific tendency of a wine to accumulate these compounds would help decision making during winemaking.
Almudena Marrufo‐Curtido, Vicente Ferreira, Ana Escudero   +2 more
wiley   +1 more source

Improvement of the adhesive capacity of SBR for footwear outsoles by surface activation and coating deposition with atmospheric pressure plasma

Plasma Processes and Polymers, Volume 18, Issue 9, September 2021., 2021
The bond strength of styrene‐butadiene rubber (SBR)/polyurethane adhesive/leather joints was improved by using atmospheric pressure plasma to activate and coat the SBR. For coated, flat SBR, this improvement was due to a considerable increase in surface polar carbon–oxygen groups.
Rodolfo Múgica‐Vidal, Juan Mercadal‐Guillén, Fernando Alba‐Elías, Elisa Sainz‐García   +3 more
wiley   +1 more source

Extracto de taninos del fruto piñón de oreja (Enterolobium cyclocarpum) como curtiente para piel de conejo común (Oryctolagus cuniculus)

Biotecnología en el Sector Agropecuario y Agroindustrial, 2020
Los taninos son metabolitos secundarios producidos por el fruto piñón de oreja que pueden formar complejos con otras macromoléculas e incrementar la preservación de las pieles animales posterior al proceso de curtido.
Héctor Julio Paz Díaz , Astrid Yeritza Agudelo Beltrán , Dayanna Angélica Plata Pastor , Mónica María Pacheco Valderrama , Ana Milena Salazar Beleño , Cristian Jahir Murillo Méndez   +5 more
doaj   +1 more source

AVALIAÇÃO DA PRODUÇÃO ORGÂNICA DE ALFACE AMERICANA (Lactuca sativa L.) EM FUNÇÃO DO MANEJO DO SOLO E ADUBAÇÃO COM RESÍDUOS DE ORIGEM ANIMAL E VEGETAL

Revista Brasileira de Agroecologia, 2021
O estudo teve o objetivo de avaliar a produção de alface americana Lucy Brown com adubação de resíduos de origem animal e vegetal. O delineamento experimental foi de blocos casualizados com quatro repetições. Os tratamentos foram: esterco bovino curtido,
flailton justino alves justino, Raimundo Pinheiro Neto, José Ozinaldo Alves de Sena, Paulo Cesário Marques, Mateus José Falleiros da Silva   +4 more
doaj   +1 more source