New flavors from old wheats: exploring the aroma profiles and sensory attributes of local Mediterranean wheat landraces

Alon Cna'ani Vered Tzin Maria Itria Ibba Hector Gonzalez-Santoyo (2023)

Article

Wheat Landraces Wholemeal Flour Aroma Compounds Sourdough Bread CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA AMINO ACIDS FLAVOUR COMPOUNDS HARD WHEAT ORGANIC ACIDS WHOLE GRAIN FLOUR

ANÁLISIS DE PIGMENTOS, PEROXIDASA, PROLINA Y PROTEÍNAS DE TRES ESPECIES DE Paulownia BAJO ESTRES HÍDRICO

ANALYSIS OF PIGMENTS, PEROXIDASE, PROLINE AND PROTEINS OF THREE Paulownia SPECIES UNDER WATER STRESS

José Manuel Llano Sotelo Lilia Alcaráz Meléndez (2012)

"Los árboles del género Paulownia son de rápido crecimiento y tienen importancia económica en Asia como materia prima de uso común en la elaboración de muebles, instrumentos musicales y cercos, lo que ha despertado interés por cultivarlos en diferentes ambientes. Con el objetivo de evaluar la tolerancia al estrés hídrico se eligieron tres especies, P. imperialis, P. fortunei y P. elongata, porque son las que se utilizan en China con mayor frecuencia en la reforestación y en la industria maderera. Se realizaron análisis bioquímicos de las hojas para determinar los siguientes componentes: como pigmentos, a las clorofilas total, a y b; β-caroteno, violaxantina y luteína); las enzimas peroxidasa y prolina, así como proteínas solubles, insolubles y totales en tres diferentes condiciones de humedad del suelo, bajo dos condiciones ambientales, campo e invernadero, entre los cuales se observaron diferencias significativas; destaca un incremento del contenido de pigmentos y peroxidasa, y una disminución de las proteínas y prolina en el ambiente controlado, principalmente. Al evaluar la respuesta al estrés hídrico entre las especies se concluyó que P. imperialis y P. elongata son más tolerantes que P. fortunei, debido a su mayor contenido de prolina, mas proteínas totales y solubles, indicadores de una mejor tolerancia a condiciones de estrés."

"Paulownia trees are fast growing and are economically important in Asia as raw material regularly used for furniture, musical instruments, fences, etc., which rose some interest in their cultivation in different environments. In order to assess water stress tolerance, three of these species, P. imperialis, P. fortunei and P. elongate, were selected as they are the most commonly used in reforestation and wood industry in China. Biochemical analyses were performed in leaves, to determine the following elements: pigments (total, a and b chlorophyll; β-carotene, violaxanthin; lutein), peroxidase, proline, total, soluble and insoluble proteins, under three moisture soil concentrations and two environments, field and greenhouse, the latter of which revealed significant differences between them; there is an increment in pigment and peroxidase content and a decrease in protein and proline content, mainly in the greenhouse environment. When water stress was assessed among species, it was concluded that P. imperialis and P. elongata are more tolerant than P. fortunei because of their higher content of proline, total and soluble proteins, which are major tolerance markers in stress conditions. "

Article

Aminoácidos, luteína, Paulownia elongata S. Y. Hu, Paulownia fortunei (Seem.) Hemsl., Paulownia imperialis Siebold & Zucc., peroxidasa, violaxantina Amino acids BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) FISIOLOGÍA VEGETAL FISIOLOGÍA VEGETAL

Multiplexed host-induced gene silencing of Aspergillus flavus genes confers aflatoxin resistance in groundnut

Kiran Sharma Pooja Bhatnagar-Mathur (2023)

Article

Host-Induced Gene Silencing CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA AFLATOXINS ARACHIS HYPOGAEA ASPERGILLUS FLAVUS FATTY ACIDS GROUNDNUTS PROTEOMICS

Accumulation of wheat phenolic acids under different nitrogen rates and growing environments

Wenfei Tian Yong Zhang Zhonghu He (2022)

Article

Functional Wheat Trans-Ferulic Acid Nitrogen Management Environment Interaction CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA WHEAT PHENOLIC ACIDS NITROGEN ENVIRONMENT ANTIOXIDANTS

A comprehensive review of wheat phytochemicals: From farm to fork and beyond

Wenfei Tian Michael Tilley Zhonghu He Yonghui Li (2022)

Article

Cereal Nutrients Health Benefits Wheat Phytochemicals CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ALKYLRESORCINOLS ANTIOXIDANTS PHENOLIC ACIDS WHEAT

Aza-Michael Additions of Benzylamine to Acrylates Promoted by Microwaves and Conventional Heating Using DBU as Catalyst via Solvent-Free Protocol

Jaime Escalante García (2023)

In recent years, the use of solvent-free reactions represents a challenge for organic chemists, since it would help to optimize methodologies and contribute to the development of sustainable chemistry. In this regard, our research group has intensified efforts in the search for reactions that can be carried out in the absence of a solvent. In this paper, we present a protocol for the aza-Michael addition of benzylamine to α,β-unsaturated esters to prepare N-benzylated β-amino esters in the presence of catalytic amounts of DBU (0.2 eq) via solvent-free reaction. Depending on the α,β-unsaturated esters, we observed a reduction in reaction times, with good to excellent yields for aza-Michael addition.

Article

BIOLOGÍA Y QUÍMICA QUÍMICA solvent free, β-aminoesters, microwaves, aza-Michaeladdition, DBU

The Pacific harbor seal gut microbiota in Mexico: Its relationship with diet and functional inferences

ARLETTE MARIMAR PACHECO SANDOVAL (2019)

Diet is a primary driver of the composition of gut microbiota and is considered one of the main routes of microbial colonization. Prey identification is fundamental for correlating the diet with the presence of particular microbial groups. The present study examined how diet influenced the composition and function of the gut microbiota of the Pacific harbor seal (Phoca vitulina richardii) in order to better understand the role of prey consumption in shaping its microbiota. This species is a good indicator of the quality of the local environment due to both its foraging and haul-out site fidelity. DNA was extracted from 20 fecal samples collected from five harbor seal colonies located in Baja California, Mexico. The V4 region of 16S rRNA gene was amplified and sequenced using the Illumina technology. Results showed that the gut microbiota of the harbor seals was dominated by the phyla Firmicutes (37%), Bacteroidetes (26%) and Fusobacteria (26%) and revealed significant differences in its composition among the colonies. Funtional analysis using the PICRUSt software suggests a high number of pathways involved in the basal metabolism, such as those for carbohydrates (22%) and amino acids (20%), and those related to the degradation of persistent environmental pollutants. In addition, a DNA metabarcoding analysis of the same samples, via the amplification and sequencing of the mtRNA 16S and rRNA 18S genes, was used to identify the prey consumed by harbor seals revealing the consumption of prey with mainly demersal habits. Functional redundancy in the seal gut microbiota was observed, irrespective of diet or location. Our results indicate that the frequency of occurrence of specific prey in the harbor seal diet plays an important role in shaping the composition of the gut microbiota of harbor seals by influencing the relative abundance of specific groups of gut microorganisms. A significant relationship was found among diet, gut microbiota composition and OTUs assigned to a particular metabolic pathway. © 2019 Pacheco-Sandoval et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Article

RNA 16S, RNA 18S, amino acid analysis, animal food, Article, bacterium colony, Bacteroidetes, basal metabolic rate, biodegradation, controlled study, DNA barcoding, feces analysis, Firmicutes, Fusobacteria, intestine flora, metabolism, Mexico, microb BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA ANIMAL (ZOOLOGÍA) BIOLOGÍA ANIMAL (ZOOLOGÍA)