338 results match your criteria: "Guizhou Institute of Technology[Affiliation]"

A review on apricot kernel seed proteins and peptides: Biological functions and food applications.

Int J Biol Macromol

December 2024

Beijing Technology and Business University, Beijing 100080, China; Guizhou Institute of Technology, Guiyang 550000, China. Electronic address:

Apricot kernel seed proteins, containing over 60 % protein, have gained attention as a potential solution to the global protein shortage and sustainable use of agricultural by-products. While research has primarily focused on their content, composition, and structural properties, there remains a lack of comprehensive studies on the extraction methods and the preparation of bioactive peptides. This review highlights the nutritional value of apricot kernel seed proteins, explores strategies to reduce allergenicity, and examines their bioactive peptide functions.

View Article and Find Full Text PDF

Effect of Density of Acrylic Acid Ester on Sulfonate-Modified Polycarboxylate Superplasticizers on Cementitious Systems.

Polymers (Basel)

November 2024

Guizhou Provincial Key Laboratory of Green Chemical and Clean Energy Technology, School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China.

To tackle high viscosity in fresh concretes, especially high-performance concrete, the research of polycarboxylate superplasticizers (PCEs) is relevant. By designing the molecular structure of PCEs, problems such as pumping difficulties in high viscosity of high-performance concrete can be solved. Therefore, in this paper, a suite of novel viscosity reducing PCEs containing sulfonic acid groups and different acrylate densities were synthesized on the basis of inventive molecular structure design, and characterized to determine the predicted structure.

View Article and Find Full Text PDF

H13 die steel has the characteristics of high hardness, strong toughness, and good heat resistance, and is a typical difficult to process materials material. During the cutting process, it is prone to accelerate tool wear and cause thermal deformation. By reasonably designing micro-grooves, the comprehensive performance of the tool can be effectively improved.

View Article and Find Full Text PDF

Guizhou Province has abundant forest resources, and it has great economic value and social benefits to explore the practical path of forestry carbon sequestration. Based on the current situation of forestry carbon sequestration development in Guizhou Province, this paper innovatively integrates forestry carbon sequestration indicators into the existing Environmental, Social and Governance(ESG) evaluation system using an evolutionary game model. It analyzes the factors restricting forestry carbon sequestration and explores the influencing factors of forestry carbon sequestration benefit sharing bodies in Guizhou.

View Article and Find Full Text PDF

Projections of urban land exposure to drought and flood in China.

Environ Monit Assess

December 2024

School of Architecture and Urban Planning, Guizhou Institute of Technology, Huaxi University Town, Huaxi District, Guiyang City, Guizhou Province, People's Republic of China, 550025.

With global warming, the risk of human exposure to extreme climates increases, profoundly impacting sustainable development. Using rapidly developing China as an example, this study estimates the exposure of urban land to drought and flood based on historical and future climate and land data. The results show that the area of urban land exposed to drought in China generally decreases in the future.

View Article and Find Full Text PDF

Discovery of Highly Effective Antibacterial Agents Based on Chalcone-Benzisothiazolinone against Plant Pathogens.

J Agric Food Chem

December 2024

State Key Laboratory of Green Pesticide, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China.

In this study, a series of novel chalcone compounds containing 1,2-benzisothiazolin-3-one were designed, synthesized, and screened for the prevention and control of plant bacterial diseases. The results showed that most of the target compounds displayed excellent antibacterial activities. Especially, (2-(3-(4-cinnamoylphenoxy)propyl)benzo[]isothiazol-3(2)-one) exhibited remarkable efficacy against pv in vitro, with a half effective concentration (EC) of 0.

View Article and Find Full Text PDF

Fresh raspberries are highly perishable, but lactic acid bacteria fermentation offers a favourable method for developing healthy products. This study investigated the effects of fermentation on the nutrients and phytochemicals of red raspberry nectar using widely targeted metabolomics, as well as its antioxidant activity. The fermentation notably disrupted the raspberry tissue structure, reshaped its non-volatile composition, and increased its DPPH and hydroxyl free radical scavenging abilities.

View Article and Find Full Text PDF

The impact of different lactobacilli fermentations on secondary metabolites of red raspberry juice and their biotransformation pathways via metabolomics based on UHPLC-MS/MS.

Int J Food Microbiol

January 2025

School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, Guizhou, China; Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Indooroopilly, QLD 4068, Australia. Electronic address:

Secondary metabolites are a group of invaluable phytochemicals in raspberries. Fermentation process leads to changes in the phytochemical composition of fruits. This study aimed to investigate the influence of Lacticaseibacillus paracasei subsp.

View Article and Find Full Text PDF

Impact of Mild Field Drought on the Aroma Profile and Metabolic Pathways of Fresh Tea () Leaves Using HS-GC-IMS and HS-SPME-GC-MS.

Foods

October 2024

Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Institutes of Agricultural Science, Yangzhou University, Yangzhou 225009, China.

Aroma plays a pivotal role in defining tea quality and distinctiveness, and tea producers have often observed that specific drought conditions are closely associated with the formation and accumulation of characteristic aroma compounds in tea leaves. However, there is still limited understanding of the differential strategies employed by various tea cultivars in response to drought stress for the accumulation of key volatile aroma compounds in fresh tea leaves, as well as the associated metabolic pathways involved in aroma formation. In this study, two widely cultivated tea cultivars in China, Fuding Dabai (FD) and Wuniuzao (WNZ), were examined to assess the impact of mild field drought stress on the composition and accumulation of key volatile aroma compounds in fresh leaves using headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) and headspace solid phase micro-extraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) technologies.

View Article and Find Full Text PDF

The roles of plant-specific transcription factor family YABBY may vary among different members. OsYABBY6 is a rice YABBY gene, whose function is not well elucidated so far. In this paper, we show that OsYABBY6 is a nucleus-localized protein with transcriptional activation activity.

View Article and Find Full Text PDF

Additions to the genus (Dothideomycetes); Three novel species and a new host record, based on morphology and phylogeny.

MycoKeys

October 2024

Engineering and Research Center for Southwest Biopharmaceutical Resource of National Education Ministry of China, Guizhou University, Guiyang, 550025, Guizhou Province, China.

During a survey of microfungi associated with forest plants, four specimens related to were collected from decaying wood in Guizhou, Hainan and Yunnan Provinces, China. species have sexual and asexual forms. They are commonly found as saprophytes on decaying wood and have been reported as disease-causing pathogens in humans as well.

View Article and Find Full Text PDF

Federated learning with differential privacy via fast Fourier transform for tighter-efficient combining.

Sci Rep

November 2024

State Key Laboratory of Public Big Data, College of Computer Science and Technology, Guizhou University, Guiyang, 550025, China.

Spurred by the simultaneous need for data privacy protection and data sharing, federated learning (FL) has been proposed. However, it still poses a risk of privacy leakage in it. This paper, an improved Differential Privacy (DP) algorithm to protect the federated learning model.

View Article and Find Full Text PDF
Article Synopsis
  • Tratt (RRT) is known for its distinctive aroma and high nutritional content, with a study identifying 99 volatile compounds in its juice across four different elevations.
  • Of these compounds, 37 showed aroma activity, with 29 being significant contributors based on their high OAVs (Odor Activity Values).
  • The research identified 18 key aroma compounds through tests and noted that the lowest elevation area, Longli, produced the most aromatic RRT.
View Article and Find Full Text PDF

Rivers in karst areas face increased risks from persistent growth in human activity that leads to changes in water chemistry and threatens the water environment. In this study, principal component analysis (PCA), ion ratio measurements, and other methods were used to study the water chemistry of the Qingshuijiang River Basin over the past 10 years. The results showed that the main ions in the river were Ca and HCO , with a cation order of Ca (mean: 0.

View Article and Find Full Text PDF

Methane, as the primary component of natural gas, is a vital energy resource extensively utilized through oxidation reactions. These reactions yield diverse radicals and molecules via varying intermediate reaction routes, contingent upon the oxidation conditions. In this study, we employ reactive molecular dynamics simulations to investigate the early-stage mechanism of methane oxidation across different temperatures and methane/oxygen conditions.

View Article and Find Full Text PDF

Methane Adsorption and Transport in Tortuous Slit-like Nanochannels: A Molecular Simulation Study.

ACS Omega

October 2024

College of Science, Guizhou Institute of Technology, Boshi Road, Dangwu Town, Gui'an New District, Guizhou 550025, China.

Tortuosity is a crucial characteristic of porous materials, such as the shale matrix where shale gas is stored. The presence of tortuous nanochannels significantly affects the adsorption and transport of nanoflows. In this research, we use molecular dynamics simulation (MD) to study the adsorption and transport properties of shale gas (methane) in a curved slit-like nanochannel constructed from bent graphene sheets.

View Article and Find Full Text PDF

Celastrol attenuates the invasion and migration and augments the anticancer effects of olaparib in prostate cancer.

Cancer Cell Int

October 2024

College of Biology and Environmental Engineering, Guiyang University, Guiyang, Guizhou, China, 550005.

Article Synopsis
  • - Prostate cancer is a major health issue for men, highlighting the need for improved detection and treatment options, with HSP90AB1 and PARP1 identified as potential targets.
  • - The study showed that reducing HSP90AB1 levels made prostate cancer cells more sensitive to the PARP inhibitor olaparib, and combining olaparib with celastrol (an HSP90 inhibitor) led to significantly decreased cell survival and enhanced DNA damage.
  • - Findings suggest that the concurrent targeting of HSP90AB1 and PARP1, particularly through the combination of celastrol and olaparib, could be an effective new strategy for treating prostate cancer.
View Article and Find Full Text PDF

Synergistic effects of bloom helicase (BLM) inhibitor AO/854 with cisplatin in prostate cancer.

Sci Rep

October 2024

Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Life Sciences, Guizhou University, Guiyang, 550025, China.

To determine the synergistic effect and mechanism of AO/854, a new Bloom syndrome protein (BLM) helicase inhibitor, and cisplatin (CDDP), a DNA-crosslinking agent, cell viability assays, neutral comet assays, and Western blotting (WB) were performed on prostate cancer (PCa) cells. According to our findings, combining AO/854 and CDDP enhanced the antiproliferative capabilities of PC3 cell lines. As evidenced by the upregulation of γH2AX, cleaved caspase-3/caspase-3, and BAX/Bcl-2, AO/854 dramatically increased PC3 apoptosis and DNA damage induced by CDDP.

View Article and Find Full Text PDF
Article Synopsis
  • * A new Ru-based catalyst, named Ru/CA-2, was developed using a composite support of biochar and AlO, optimizing their ratios to enhance performance, resulting in a 99.9% conversion of guaiacol at 230°C and selectivity for cyclohexane.
  • * The Ru/CA-2 catalyst demonstrated excellent recyclability with no significant loss of activity after five uses and significantly improved hydrocarbon content in lignin-oil HDO applications, indicating potential for industrial use.
View Article and Find Full Text PDF

The intrinsic fluorescence of berberine is very weak, which can be enhanced by its interaction with specific aptamers. A simple and sensitive DNA sensor for visual detection of berberine has here been established. When using this sensor, there was a good linear relationship between the change in fluorescence intensity of berberine and the concentration of berberine in the range of 16-2000 nM, with a detection limit of 5.

View Article and Find Full Text PDF

A model of the generalized dark hollow sine-Gaussian beam (GDHsGB) is proposed to uniformly describe both conventional dark hollow beams (DHBs) and anomalous dark hollow beams (ADHBs) with circular or elliptic geometrical patterns. Using the Collins formula, we derive the analytical expression for GDHsGBs propagating in ABCD paraxial optical systems. We analyze the evolution of the intensity pattern and beam width of circular ADHBs, as well as the ellipticity of elliptic ADHBs, providing mathematical expressions for these physical quantities.

View Article and Find Full Text PDF

Development and Characterization of a New TILLING Population for Forward and Reverse Genetics in Barley ( L.).

Plants (Basel)

September 2024

Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Institutes of Agricultural Science, Yangzhou University, Yangzhou 225009, China.

Mutagenesis is an important tool in crop improvement and free of the regulatory restrictions imposed on genetically modified organisms. Barley ( L.) is a diploid species with a genome smaller than those of other members of the Triticeae crops, making it an attractive model for genetic studies in Triticeae crops.

View Article and Find Full Text PDF

Penicipyrrolizidinones A-C, three pyrrolizidinone alkaloids with unprecedented skeletons from the mangrove-derived fungus Penicillium sp. DM27.

Phytochemistry

January 2025

Department of Nephrology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, PR China. Electronic address:

Three previously undescribed pyrrolizidinone alkaloids, penicipyrrolizidinones A and B (1 and 2), possessing an unprecedented 2-methyl-2-(oct-6-enoyl)pyrrolizidin-3-one skeleton, and penicipyrrolizidinone C (3), featuring a rare 1-alkenyl-2-methyl-pyrrolizidin-3,7-dione skeleton, together with four known pyrrolidine derivatives (4-7) were isolated from the mangrove-derived fungus Penicillium sp. DM27. Their structures were elucidated through comprehensive spectroscopic analysis, theoretical calculations of ECD spectra, and the modified Mosher's method.

View Article and Find Full Text PDF

Dual carbon isotopes (δC and ΔC) were used to reveal the main sources and input fluxes of dissolved inorganic carbon in a karst reservoir in winter.

Environ Res

December 2024

Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China.

In karst areas, the dissolved inorganic carbon (DIC) concentrations in aquatic systems are typically higher than that in non-karst areas due to intensive carbonate rock weathering. Understanding the sources and input fluxes of DIC in karst reservoirs is crucial for regional carbon cycle studies. This study utilized dual carbon isotopes (δC and ΔC) to estimate the contribution rates and input fluxes of DIC from various sources in Aha Reservoir (AHR), located in southwestern China.

View Article and Find Full Text PDF

Formononetin derivatives containing benzyl piperidine: A brand new, highly efficient inhibitor targeting Xanthomonas spp.

J Adv Res

September 2024

State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang 550025, PR China. Electronic address:

Introduction: Plant bacterial diseases take an incalculable toll on global food security. The indiscriminate use of chemical synthetic pesticide not only facilitates pathogen resistance of pathogenic bacteria, but also poses a major threat to human health and environmental protection. Therefore, it is of great economic value and scientific significance to develop a new antibacterial drug with environmental friendliness and unique mechanism of action.

View Article and Find Full Text PDF