Ultrasound-Assisted Enzymatic Extraction of Mangiferin From Mango ( L.) Peels: Process Optimization and Antioxidant Activity Evaluation.

Mango peel is one of the main byproducts in mango processing. In order to improve the utilization and added-value of mango peel, effects of the ultrasound-assisted enzymatic method on the extraction rate of mangiferin from mango peel were investigated by single-factor tests (enzyme addition amount, enzymolysis time, ethanol concentration, ultrasonic temperature, ultrasonic power, and ultrasonic time), and the extraction process was optimized by Box-Behnken response surface. The antioxidant activity and antidiabetic assay of mangiferin in vitro were studied.

Three bacterial strains efficiently reduce selenite to selenium nanoparticles in cell membranes.

Microbial synthesis of selenium nanoparticles (SeNPs) as a fertilizer can promote the development of selenium-rich agricultural products. However, most known selenium-reduction strains exhibit a tolerance to selenite of ≤ 100 mmol/L and possess relatively low reduction efficiency. In this study, three strains capable of tolerating selenite concentrations of > 300 mmol/L were screened from selenium-rich soil in Bama, Guangxi, China.

Low Cycle Fatigue Life Prediction for Hydrogen-Charged HRB400 Steel Based on CPFEM.

Addressing the limitations of traditional fatigue life prediction methods, which rely on extensive experimental data and incur high costs, and given the current absence of studies that employ deformation inhomogeneity parameters to construct fatigue-indicator parameter (FIP) for predicting low-cycle fatigue (LCF) life of metals in hydrogen environments, this study firstly explores how hydrogen pre-charging influences the LCF behavior of hot-rolled ribbed bar grade 400 (HRB400) steel via experimental and crystal plasticity simulation, and focus on the relationship between the fatigue life and the evolution of microscale deformation inhomogeneity. The experimental results indicate that hydrogen charging causes alterations in cyclic hysteresis, an expansion of the elastic range of the stabilized hysteresis loop, and a significant reduction in LCF life. Secondly, a novel FIP was developed within the crystal plasticity finite element method (CPFEM) framework to predict the LCF life of HRB400 steel under hydrogen influence.

Mindfulness-Based Art Interventions for Students: A Meta-Analysis Review of the Effect on Anxiety.

Anxiety has become an important issue affecting students' mental health. There is some evidence that mindfulness-based art interventions (MBAIs) can reduce students' anxiety symptoms. However, some studies have shown the opposite view.

The interaction between McMLO7b and McCASPL22 regulating the susceptibility to powdery mildews in balsam pear.

Powdery mildew (PM) is one of the most serious diseases in balsam pear. MLO (Mildew Resistance Locus O) is a key factor in the response of plants to PM infection, but its regulation mechanism remains poorly understood. In this study, overexpression of McMLO7b (MLO7b in Momordica charantia L) was found to potentially enhance Arabidopsis susceptibility to PM, confirming that McMLO7b acts as a susceptibility factor during PM infection.

Predicting the potential geographical distribution of mango, an important tropical economic tree species, under current and climate change based on Maxent model.

Introduction: Mango is a major tropical economic tree species in China, along with being a vital source of livelihood for farmers and an important maintainer of ecosystem services in southern China. Identifying the potential suitable habitats for mango under current and future climate scenarios, along with key influencing factors, can inform mango plantation. However, little is known about these.

Halogen Substituents Regulate the Types of Reactive Oxygen Species Generated by Ca(II)-Based Luminescent HOFs, and Their Smart Sensing and Photodynamic Sterilization.

Hydrogen-bonded organic frameworks (HOFs) have demonstrated unique application advantages in fields such as ion sensing and photodynamic sterilization. Herein, four HOFs were obtained by using 8-hydroxyquinoline with different heavy atom substituents to react with Ca(NO)·4HO. all have excellent smart sensing performance behavior to SO ions, and their detection limits are 3.

Roasting Improves the Bioaccessibility and Bioactivity of Polyphenols from Highland Barley with a Protective Effect in Oxidatively Damaged HepG2 Cells.

This research is designed to explore the effect of roasting on the release, bioaccessibility, and bioactivity of polyphenols in highland barley (HB). The findings of in vitro digestion indicated that roasting significantly improved the bioaccessibility of polyphenols in HB flour (gastrointestinal digestion stage: raw HB: 187.28%, roasted HB: 285.

The complete genome of pv. strain B3, isolated from diseased mango leaves in Guangxi, China.

In this study, we sequenced the complete genome of pv. strain B3, isolated from mango leaves with black spot symptoms. The 5.

Connection and happiness: an interactive study of social media, social capital, and the subjective well-being of international students.

The subjective well-being of international students is crucial for their adaptation and academic success in a foreign country. Based on online social capital theory, this study examines how social media use affects the subjective well-being of international students and explores the underlying mechanisms and the moderating role of college attachment. A questionnaire survey was conducted among 21 universities in China, yielding 474 valid responses, which were analyzed using structural equation modeling.

Structure and composition of arbuscular mycorrhizal fungal community associated with mango.

Mango ( L.) is an important fruit crop with significant economic value in tropical and subtropical areas globally. Arbuscular mycorrhizal fungal (AMF) symbiosis is vital for mango trees growth, and the detailed understanding of various (a)biotic factors that influence AMF community composition is crucial for sustainable crop production.

Rice diterpenoids rewire microbiome to fight plant-parasitic nematodes.

Microorganisms associated with plant roots can protect the host from plant-parasitic nematodes. Kudjordjie et al. recently demonstrated that rice diterpenoid phytoalexins are involved in the assembly of beneficial root microbiota for nematode suppression.

Seismic performance analysis of braced steel structures based on vibration experiments and finite element simulation.

The study analyzes the seismic performance of spatial steel frame structures by creating a three-dimensional nonlinear finite element model and designing vibration table model experiments. This is done to ensure the seismic performance of the steel framing-bracing system in spatial steel frame structures and to raise the level of seismic and disaster prevention technology of steel structures. The outcomes revealed that under the experimental load consisting of simulated seismic waves generated by the shaker, the initial natural frequencies of the bidirectional bracing arrangement in white noise in the X and Y-directions were larger, 53.

Response of microbial structure characteristics and enzyme activity to different altitude.

Studying the influence of altitude on soil microorganisms and enzyme activity is crucial for protecting land environmental changes in karst areas. The study focused on the soil at different altitudes in the Luganyou area, Baise City. The Multidimensional statistical analysis encompassed assessments of soil nutrient properties, soil microorganisms, and soil enzymes across these altitude gradients.

Integrated analysis of transcriptome, small RNA, and degradome sequencing provides insights into mango anthracnose resistance.

Mango anthracnose is a major biotic stress that limits mango production worldwide. An integrated transcriptome, small RNA (sRNA), and degradome sequencing analysis was conducted to determine the complex molecular mechanisms of mango anthracnose resistance. The transcriptome sequencing of 12 samples from a mango anthracnose resistant genotype under control and stress conditions on the 3rd and 5th day post inoculation identified 3,462 and 8,341 differentially expressed genes (DEGs), respectively, which were mainly involved in transcription factor activity, defense response, an obsolete oxidation - reduction process, and flavonoid biosynthetic processes.

Integrative mapping in large inbred and hybrid association panels along with an F population advanced a novel understanding of general combining ability for plant height in maize.

We identified 44 QTL for PH-related traits evaluated for inbreds per se and GCA effects in large inbred and hybrid association panels and seven QTL for EH/PH in an F population coupled with BSA-seq. Among four co-localized QTL, seven novel potential candidate genes were significantly associated with PH-related traits, shedding new light on understanding the genetics of GCA for PH. Breeding optimal plant height (PH) is essential for improving maize (Zea mays L.

Unlocking the structure-activity relationship of mangrove condensed and hydrolysable tannins: Unveiling their potential ecological significance in antioxidant and antibacterial functions.

Tannins play key roles in regulating ecological processes within mangrove ecosystems, but the structures of mangrove condensed tannins (CT) and hydrolysable tannins (HT), as well as their antioxidant and antibacterial activities, are not well understood. In this study, MALDI-TOF MS was used to analyze the structural components of oligomers and polymers in phenolic extracts from Kandelia obovata, Aegiceras corniculatum, and Sonneratia apetala. Results identified two primary structural units: procyanidins (PC) and prodelphinidins (PD), with mass-to-charge ratios of 288 Da and 304 Da, respectively, and a 16 Da interval indicating differences in hydroxylation.

Synergistic Modification and Mechanism of Tungsten and Niobium to Enhance the Performance of Nickel-Rich Layered Cathode Materials.

To improve the capacity at a high rate and cycle stability of LiNiCoMnO (NCM811), a simple strategy is developed to synthesize the tungsten/niobium (W/Nb) co-doped cathode material. W/Nb co-doping remarkably reduced the system energy of single W- or single Nb-doping. The co-doping makes the material have a more stable structure, and inhibits the anisotropic volume change caused by H2↔H3 phase transition, thus maintaining the integrity of particles and preventing the formation of microcracks.

The bioaccessibility and bioactivity of polyphenols from tsampa prepared from roasted highland barley flour solid-fermented by autochthonous lactic acid bacteria.

Tsampa, which is abundant in polyphenols, demonstrates significant bioactivity and potential health benefit. However, the bioaccessibility and potential bioactivity of polyphenols derived from tsampa prepared from autochthonous lactic acid bacteria solid-fermented roasted highland barley flour (F-RHBF) have not been investigated. This study aimed to evaluate the bioaccessibility and bioactivity of polyphenols from tsampa prepared from F-RHBF through in vitro digestion model, and additionally, to explore the protective effects of digested tsampa extract against oxidative stress damage by establishing HO -induced oxidative stress injury model of HepG cells.

Two sexually compatible monokaryons from a heterokaryotic strain respond differently to heat stress.

Background: Despite the extensive research conducted on heat responses of heterokaryotic cells, the responses of the two sexually compatible monokaryons to heat stress (HS) remain largely unknown.

Methods: To bridge this gap, we examined the nucleus-specific (SP3 and SP30) heat resistant mechanisms using an integrated physiological, metabolomic and transcriptomic approach.

Results: The results showed that HS elicited the boost of ROS and hampered mycelium growth for both monokaryons.

Nano-selenium: a novel candidate for plant microbiome engineering.

The soil microbiome drives plant health and productivity. Recently, Sun and colleagues described a unique plant-microbe signaling cascade that enables selenium nanoparticle (SeNPs) formation by rhizosphere microbiota. These SeNPs boost maize performance by enriching plant-beneficial bacteria in a dose-dependent manner, offering novel paradigm for nano-microbiome engineering to promote sustainable food production.

Green synthesis of near-infrared carbon dots as a novel aptamer-based fluorescence probe for the detection and imaging of alpha-fetoprotein.

The concept of green chemistry was advocated, and near-infrared (NIR) red fluorescence emission carbon dots (RCdots) were prepared using the hydrothermal method with blood orange. RCdots adsorbed alpha-fetoprotein aptamers (AFP-aptamers) onto the surface through π-π stacking, and a photoinduced electron transfer (PET) effect occurred, leading to the fluorescence quenching of RCdots. However, AFP has a stronger affinity with AFP-aptamer, causing the AFP-aptamer to be removed from the surface of RCdots, resulting in the restoration of RCdots' fluorescence.

Proteomics analysis revealed the activation and suppression of different host defense components challenged with mango leaf spot pathogen Alternaria alternata.

Background: Mango is an economically important fruit tree in many regions of the world, but is highly susceptible to mango leaf spot disease, caused by Alternaria species. How to manage this disease has been a challenge and therefore understanding the regulation of host molecular components in response to pathogen infection is necessary. In this study, we conducted a comprehensive proteomic analysis of mango leaves upon inoculation with the leaf spot pathogen A.

Effect of Y and Zr addition on the intergranular corrosion of Al-Mg alloy after sensitization treatment.

This paper investigates the effect of adding 0.1 % Y and 0.1 % Zr microalloying on the microstructure and corrosion resistance behavior of Al-5.

Splicing and expression dynamics of SR genes in hot pepper (): regulatory diversity and conservation under stress.

In this study, we identified and characterized 23 genes encoding serine/arginine-rich (SR) protein in hot pepper (), named CaSR here. These CaSR proteins are grouped into seven subfamilies. Phylogenetic analysis revealed a high degree of similarity between CaSRs and their homologous proteins in other plants.