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Articles 1171 - 1200 of 255585
Full-Text Articles in Life Sciences
From Chromosomes To Precision Therapy: Clinical Cytogenetics And Cytogenomics In The Era Of Genomic Medicine, Jinglan Liu
From Chromosomes To Precision Therapy: Clinical Cytogenetics And Cytogenomics In The Era Of Genomic Medicine, Jinglan Liu
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
No abstract provided.
Behavioral Analysis Of Cryptoprocta Ferox At The Central Florida Zoo And Botanical Gardens, Rita R. Albert
Behavioral Analysis Of Cryptoprocta Ferox At The Central Florida Zoo And Botanical Gardens, Rita R. Albert
The Pegasus Review: UCF Undergraduate Research Journal
The fossa, Cryptoprocta ferox, is the largest carnivorous mammal endemic to the island of Madagascar. C. ferox is currently listed as a vulnerable species by the IUCN Red List (2015) due to deforestation. Most fossas are now located in zoos for breeding and repopulation purposes, but research on captive mating has been limited due to the low numbers of successful breeding attempts in captivity. The Central Florida Zoo and Botanical Gardens is home to two fossas, one male and one newly introduced female. This study notes behavioral changes in captive mating fossas, with a focus on the male fossa …
Artificial Intelligence-Driven Framework For Enhancing Risk Management In The Architectural Design Process In Egypt, Ayman Ahmed Ezzat Othman, Nadia Mohamed Algheetany, Fatma Othman Alamoudy
Artificial Intelligence-Driven Framework For Enhancing Risk Management In The Architectural Design Process In Egypt, Ayman Ahmed Ezzat Othman, Nadia Mohamed Algheetany, Fatma Othman Alamoudy
Mansoura Engineering Journal
The construction industry is crucial for achieving the United Nations Sustainable Development Goals (SDGs). However, it faces significant risks during the Architectural Design Process (ADP) that affect project quality, cost, schedule, and sustainability. Due to its limitations, traditional risk management (RM) is often inadequate for addressing these challenges. This study aims to develop a novel Artificial Intelligence (AI) driven framework to enhance RM practices in Egyptian Architectural Design Firms (ADFs) through proactive RM and improved data-driven decision making. A mixed methods research approach was adopted to achieve the research objectives. A comprehensive literature review examined RM, ADP, and AI applications …
Physiological Impacts Of Plastic Ingestion On Sea Turtles, Heather Seaman
Physiological Impacts Of Plastic Ingestion On Sea Turtles, Heather Seaman
Electronic Theses and Dissertations 2020 - Present
Over the years, plastic production has increased to astonishing numbers and is predicted to continue. Over time, environmental plastic will degrade into smaller pieces, which sea turtles can mistake for prey. Chemicals associated with plastics have been identified in tissues of sea turtles, and some are suspected to be endocrine disruptors. Sea turtles are known to ingest plastics, but more information is needed to illuminate the potential physiological impacts plastic chemicals may have on sea turtles. This study compared plastic ingestion and toxicant levels across species and ontogenically, as different species and life stages inhabit different areas which will influence …
Toxic Relationships: Characterization Of A Putative Virally Encoded Toxin In The Thermophilic Archaeal Fusellovirus Ssv1, Jonathan C. Abshier, Patrizia L. Alpapara, Guasåli Tomokane, Kenneth M. Stedman
Toxic Relationships: Characterization Of A Putative Virally Encoded Toxin In The Thermophilic Archaeal Fusellovirus Ssv1, Jonathan C. Abshier, Patrizia L. Alpapara, Guasåli Tomokane, Kenneth M. Stedman
Center for Life in Extreme Environments Publications
Mechanisms for the maintenance of chronic viruses are poorly understood, particularly for archaeal viruses. Here, we identify the product of Sulfolobus spindle-shaped virus 1 (SSV1) ORF a291 as a putative virally encoded toxin required for growth inhibition but dispensable for viral replication and virion production. Viruses lacking ORF a291 replicated their genomes and formed morphologically normal spindle-shaped particles, yet failed to inhibit the growth of uninfected Saccharolobus solfataricus. Substitution of residues at a predicted N-terminal signal peptide cleavage site abolished growth suppression without affecting replication, suggesting that secretion is essential for toxin function. Despite primary sequence divergence among fusellovirus …
Genetic Associations With Pulmonary Embolism Among Those With A Deep Vein Thrombosis: The International Network Against Venous Thrombosis Consortium, Susana Lozano-Esparza, Gabrielle E Shakt, Jennifer A Brody, Angel Martinez-Perez, Matthew P Conomos, Marine Germain, Katharine R Clapham, Maris Teder-Laving, Astrid Van Hylckama Vlieg, Anni Kauko, Florian Thibord, Ohanna C L Bezerra, Girish N Nadkarni, Gaëlle Munsch, Therese Haugdahl Nøst, Ellen L Goode, Yuekai Ji, Daniel I Chasman, Alexander P Reiner, Constance Turman, Kerri L Wiggins, Colleen M Sitlani, Juan Carlos Souto, Pamela L Lutsey, Tiffany Bellomo, Estonian Biobank, Million Veteran Program, Ruifang Li-Gao, Aleksi Kristian Winstén, Ming-Huei Chen, Ron Do, Lénaick Gourhant, Kristian Hveem, Sebastian M Armasu, Noémie Saut, Nathan Pankratz, Franco Giulianini, Jeffrey Haessler, Mingyang Song, Robert Olaso, Eric Boerwinkle, Daniel Dochtermann, Jose Manuel Soria, Stephen S Rich, David Smadja, Satoshi Koyama, Frits R Rosendaal, Teemu Niiranen, France Gagnon, Ha My T Vy, Neil Zakai, Catherine Lemarie, Anne Heidi Skogholt, Jean-François Deleuze, James S Pankow, Paul M Ridker, Yuxi Liu, Kenneth M Rice, Saiju Pyarajan, Mary Cushman, Jospeh Emmerich, Bruce M Psaty, Pradeep Natarajan, Andrew D Johnson, Marc A Rodger, Pierre Suchon, Francis Couturaud, Pierre-Emmanuel Morange, Weihong Tang, Charles Kooperberg, Christopher Kabrhel, Maria Sabater-Lleal, David-Alexandre Trégouët, Alisa S Wolberg, Scott M Damrauer, Nicholas L Smith
Genetic Associations With Pulmonary Embolism Among Those With A Deep Vein Thrombosis: The International Network Against Venous Thrombosis Consortium, Susana Lozano-Esparza, Gabrielle E Shakt, Jennifer A Brody, Angel Martinez-Perez, Matthew P Conomos, Marine Germain, Katharine R Clapham, Maris Teder-Laving, Astrid Van Hylckama Vlieg, Anni Kauko, Florian Thibord, Ohanna C L Bezerra, Girish N Nadkarni, Gaëlle Munsch, Therese Haugdahl Nøst, Ellen L Goode, Yuekai Ji, Daniel I Chasman, Alexander P Reiner, Constance Turman, Kerri L Wiggins, Colleen M Sitlani, Juan Carlos Souto, Pamela L Lutsey, Tiffany Bellomo, Estonian Biobank, Million Veteran Program, Ruifang Li-Gao, Aleksi Kristian Winstén, Ming-Huei Chen, Ron Do, Lénaick Gourhant, Kristian Hveem, Sebastian M Armasu, Noémie Saut, Nathan Pankratz, Franco Giulianini, Jeffrey Haessler, Mingyang Song, Robert Olaso, Eric Boerwinkle, Daniel Dochtermann, Jose Manuel Soria, Stephen S Rich, David Smadja, Satoshi Koyama, Frits R Rosendaal, Teemu Niiranen, France Gagnon, Ha My T Vy, Neil Zakai, Catherine Lemarie, Anne Heidi Skogholt, Jean-François Deleuze, James S Pankow, Paul M Ridker, Yuxi Liu, Kenneth M Rice, Saiju Pyarajan, Mary Cushman, Jospeh Emmerich, Bruce M Psaty, Pradeep Natarajan, Andrew D Johnson, Marc A Rodger, Pierre Suchon, Francis Couturaud, Pierre-Emmanuel Morange, Weihong Tang, Charles Kooperberg, Christopher Kabrhel, Maria Sabater-Lleal, David-Alexandre Trégouët, Alisa S Wolberg, Scott M Damrauer, Nicholas L Smith
Children’s Nutrition Research Center Staff Publications
Background: Venous thromboembolism (VTE) includes deep vein thrombosis (DVT) and pulmonary embolism (PE), the latter of which often originates from DVT and can be fatal.
Objectives: The aim of this study was to identify causal genetic factors that alter risk of PE among those with a presumed DVT.
Methods: Using a case-only design of VTE, we conducted meta-analyses of genome-wide association studies (GWASs) in the International Network Against Venous Thrombosis Consortium. Among participants diagnosed with VTE, each study identified those who had a clinically reported PE, with or without a clinically reported DVT; those remaining had isolated DVT. Logistic regression …
Effects Of Variable Light On Sexual Competition In Kelp Species, Jaycee Lanza
Effects Of Variable Light On Sexual Competition In Kelp Species, Jaycee Lanza
Master's Theses
As foundation species, kelps significantly influence the structure and composition of their surrounding habitat by modifying environmental conditions, including light levels, currents, nutrient availability, sedimentation, and seawater chemistry. Light, in particular, is a critical resource that varies greatly within kelp forests, affecting kelp reproductive processes such as gametogenesis, fertilization, and recruitment, which are vital to population persistence. Biological factors, such as density-dependent competition for resources and sexual competition with other kelps, can also affect such processes. To understand how environmental variables influence kelp populations, it is crucial to recognize their combined effects. This study investigated the impacts of light levels …
Oregon State Rank Assessment For Alpine Smelowskia (Smelowskia Ovalis), Lindsey K. Wise
Oregon State Rank Assessment For Alpine Smelowskia (Smelowskia Ovalis), Lindsey K. Wise
Institute for Natural Resources Publications
Oregon state conservation status assessment for Alpine smelowskia (Smelowskia ovalis) using NatureServe methodology, 2026.
Using Fecal Diagnostic Tests To Assess The Prevalence Of Fasciola Hepatica In The United States Sheep Population, Brooke A. Delcambre
Using Fecal Diagnostic Tests To Assess The Prevalence Of Fasciola Hepatica In The United States Sheep Population, Brooke A. Delcambre
LSU Master's Theses
Fasciola hepatica, the common liver fluke, is endemic in the Pacific Northwest and Gulf Coast of the United States. To provide updated information on F. hepatica prevalence, as part of the USDA National Animal Health Monitoring System Sheep 2024 study, sheep operations in the top 30 sheep-producing states were identified, and producers were invited to participate. For each operation, feces were collected from at least eight sheep and pooled to form a single composite sample. Two methods were used to identify sheep infected with F. hepatica: fecal sedimentation and indirect sandwich ELISA. At the national level, across 318 operations, 7.1 …
In Silico Analysis Of Vaginal Microbiota In Female Reproductive Health Using Ncbi Database And Blast, Arleni Bustami, Ariyani Kiranasari, Engla Merizka
In Silico Analysis Of Vaginal Microbiota In Female Reproductive Health Using Ncbi Database And Blast, Arleni Bustami, Ariyani Kiranasari, Engla Merizka
Indonesian Journal of Medical Chemistry and Bioinformatics
Background: The vaginal microbiota plays a critical role in maintaining female reproductive health. Beneficial bacteria, particularly Lactobacillus species, contribute to vaginal homeostasis, whereas dysbiosis-associated bacteria such as Gardnerella vaginalis and Prevotella bivia have been linked to bacterial vaginosis and reproductive tract disorders. Publicly available nucleotide databases and bioinformatic tools provide accessible resources for studying microbial species associated with vaginal health. Objective: This study aimed to perform a simple in silico analysis of representative vaginal microbiota using publicly available 16S rRNA gene sequences retrieved from the NCBI database and analyzed using BLAST and phylogenetic approaches. Methods: Representative 16S rRNA gene sequences …
Enhancing Rapid Reef Resilience Through Transplantation Of Thermally Tolerant Corals In OʻAhu, HawaiʻI, Allison M. Klein
Enhancing Rapid Reef Resilience Through Transplantation Of Thermally Tolerant Corals In OʻAhu, HawaiʻI, Allison M. Klein
Electronic Theses and Dissertations 2020 - Present
Coral reefs are increasingly threatened by marine heatwaves, disease outbreaks, and other anthropogenic stressors, leading to widespread declines in coral cover worldwide. As a result, efforts are increasingly focused on identifying thermally tolerant corals for reef restoration. However, it remains unclear whether thermal tolerance is maintained following transplantation and whether thermally tolerant corals perform differently in novel environments. This dissertation examined thermal tolerance, survivorship, symbiont communities, and growth in two dominant Hawaiian reef-building corals, Montipora capitata and Porites compressa, using a reciprocal transplant experiment between Kāneʻohe Bay and Ulupaʻu, Oʻahu. Initial heat-stress assays showed high thermal tolerance in both …
Analysis Of Inorganic Element Content And Health Risk Assessment Of Ranunculi Ternati Radix From Different Origins, Li Juan, Geng Xiaotong, Yao Weijie, Zhou Tao, Bi Jingjing
Analysis Of Inorganic Element Content And Health Risk Assessment Of Ranunculi Ternati Radix From Different Origins, Li Juan, Geng Xiaotong, Yao Weijie, Zhou Tao, Bi Jingjing
Food and Machinery
[Objective] The variations in inorganic element content and the safety of heavy metals and harmful elements in Ranunculi ternati radix from different origins were investigated. [Methods] The quantitative analysis of 24 elements in the samples was performed by inductively coupled plasma mass spectrometry (ICP-MS). Health risk assessment was conducted using estimated daily intake (EDI), target hazard quotient (THQ), and carcinogenic risk (CR). Principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) were used for origin identification analysis and differential element screening. [Results] All 25 Ranunculi ternati radix samples from different origins contain abundant macronutrients (K, Na, Ca, and Mg) …
Effects Of Various Extraction Methods On The Performance Of Corn Fiber Gum-Pea Protein Composite Gels, Wu Chenglong, Jiang Zhili, Huang Lilin, Tang Leiming, Sun Xiaohong
Effects Of Various Extraction Methods On The Performance Of Corn Fiber Gum-Pea Protein Composite Gels, Wu Chenglong, Jiang Zhili, Huang Lilin, Tang Leiming, Sun Xiaohong
Food and Machinery
[Objective] This study aims to investigate the effects of three extraction methods - alkaline extraction, enzymatic extraction, and acid extraction - on the properties of corn fiber gum (CFG)-pea protein composite gels. [Methods] CFG was extracted from corn bran using the three methods. The gel strength, water-holding capacity, rheological properties, and microstructure of the CFG-pea protein composite gels are evaluated. [Results] The CFG extracted by enzymatic extraction increases the gel strength of pea protein gels from (27.20±2.45) g to (65.80±2.67) g, and the water-holding capacity from (40.60±3.40)% to (75.80±5.10)%. Additionally, it forms a more compact and ordered network structure with …
Effects Of Extraction Methods On The Composition And Physicochemical Properties Of Flavonoids From Lycium Barbarum Leaves, Li Juanxia, Li Jianxin, Gao Jianying, Mai Wenting, Fan Yanli, Ma Jinchao, Meng Xuemei
Effects Of Extraction Methods On The Composition And Physicochemical Properties Of Flavonoids From Lycium Barbarum Leaves, Li Juanxia, Li Jianxin, Gao Jianying, Mai Wenting, Fan Yanli, Ma Jinchao, Meng Xuemei
Food and Machinery
[Objective] To investigate the effects of different extraction methods on the efficacy, chemical composition, and functional group characteristics of flavonoids in Lycium barbarum leaves. [Methods] This study comparatively analyzes the effects of three methods - ultrasound-assisted ethanol extraction (UAE), microwave-assisted ethanol extraction (MAE), and aqueous two-phase system (ATPS) - on the yield, composition, and in vitro antioxidant activity of flavonoids from L. barbarum leaves. [Results] UAE and MAE achieve the highest yield of flavonoids from dried L. barbarum leaves. The main components are rutin, quercetin, chlorogenic acid, and kaempferol. The antioxidant capacity of the flavonoid extract from dried L. barbarum …
Heat Transfer Analysis And Packaging Optimization Design Of Self-Heating Rice, Sun Haowen, Li Huan, Wu Xiaomeng, Mao Like
Heat Transfer Analysis And Packaging Optimization Design Of Self-Heating Rice, Sun Haowen, Li Huan, Wu Xiaomeng, Mao Like
Food and Machinery
[Objective] To further understand the influence of the heat transfer process on the quality of self-heating foods and improve the heating rate of existing self-heating rice products. [Methods] A combination of virtual simulation and experimental methods was used to analyze the actual temperature variations during the heating process of self-heating rice and the effects of heat transfer on rice texture. A three-dimensional heat transfer model of self-heating rice was established using COMSOL software to investigate the heat transfer process, and the packaging design of self-heating rice was optimized with the objective of maximizing the heating rate. [Results] After reheating and …
Dynamic Evolution Law Of Volatile Flavor Components During The Aging Process Of Sauce-Flavored Baijiu, Dai Jiahui, Wang Yanan, Kang Xiaoning, Dai Wenting, Wang Shiping
Dynamic Evolution Law Of Volatile Flavor Components During The Aging Process Of Sauce-Flavored Baijiu, Dai Jiahui, Wang Yanan, Kang Xiaoning, Dai Wenting, Wang Shiping
Food and Machinery
[Objective] To investigate the aroma changes of sauce-flavored Baijiu during different aging periods, and to provide a theoretical basis for Baijiu aroma analysis and modern processing technology research. [Methods] Electronic nose, gas chromatography -mass spectrometry (GC-MS), and gas chromatography-ion mobility spectrometry (GC-IMS) were employed. Sauce-flavored Baijiu with different aging times (original liquor, 1-year aged, and 5-year aged) was used as the research objects. Combined with multivariate statistical methods, including principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS -DA), the differences in volatile flavor compounds of Baijiu with different aging times were analyzed. [Results] A total of 1 …
Effect Of Cultivation Methods On Volatile Components In Morchella Esculenta, Liu Ni, Jiang Bo, Li Lang
Effect Of Cultivation Methods On Volatile Components In Morchella Esculenta, Liu Ni, Jiang Bo, Li Lang
Food and Machinery
[Objective] To comprehensively reveal the flavor and quality characteristics, and differences of Morchella esculenta under different cultivation methods, and systematically evaluate their volatile aroma components. [Methods] Qualitative and quantitative analyses are conducted on volatile aroma components in M. esculenta cultivated in greenhouses, under forests, and in caves in the vicinity of FAST by headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) techniques. The contribution of different components to the overall flavor is assessed by the relative odor activity value (ROAV) method. Based on this, principal component analysis and cluster analysis are conducted, achieving a comprehensive evaluation of the flavor …
Microwave-Assisted Enzymatic Hydrolysis Of Tibetan Sheep Blood Protein And Analysis Of Product Characteristics, Yu Xilu, Gu Xuedong, Chen Yujin, Zhang Hongxin, Ciren Danzhu
Microwave-Assisted Enzymatic Hydrolysis Of Tibetan Sheep Blood Protein And Analysis Of Product Characteristics, Yu Xilu, Gu Xuedong, Chen Yujin, Zhang Hongxin, Ciren Danzhu
Food and Machinery
[Objective] This study aims to utilize fresh Tibetan sheep blood as raw material, investigate the enhancing effect of microwave-assisted technology on enzymatic hydrolysis efficiency, and achieve high-value utilization of Tibetan sheep blood. [Methods] A microwave-assisted trypsin hydrolysis method is employed to enzymatically hydrolyze the proteins. The optimal hydrolysis conditions are established through single-factor experiments and response surface methodology. The resulting hydrolysates are characterized using scanning electron microscopy (SEM) and a fully automated amino acid analyzer. [Results] The optimal hydrolysis conditions are determined as follows: microwave temperature of 40 ℃, microwave time of 50 min, enzymatic hydrolysis time of 240 min, …
Rapid Detection Of Viable Salmonella Based On Specific Phage Infection Combined With Fluorescent Rpa, Liu Daofeng, Zhai Yujie, Tan Yucheng, Shan Shan, Lu Jun, Zhong Ziqing
Rapid Detection Of Viable Salmonella Based On Specific Phage Infection Combined With Fluorescent Rpa, Liu Daofeng, Zhai Yujie, Tan Yucheng, Shan Shan, Lu Jun, Zhong Ziqing
Food and Machinery
[Objective] To establish a rapid detection method for viable Salmonella based on specific phage infection and recombinase polymerase amplification (RPA) in response to the key challenge that traditional molecular biological detection methods have difficulty in conveniently distinguishing between viable and non-viable foodborne pathogens. [Methods] Taking advantage of the characteristic that O-1 phage only proliferates in viable bacteria, the phage is added to the enriched sample. After further incubation, total DNA is extracted. Fluorescent RPA is used to determine whether the phage has significantly proliferated, so as to judge the presence of viable Salmonella in the original sample. [Results] After optimization, …
Establishment Of An Indirect Competitive Elisa For Sulfadimethoxine, Han Lu, Huang Mingyue, Yu Xiang, Li Sijia, Cao Jinbo, Wang Yao, Kang Huaibin
Establishment Of An Indirect Competitive Elisa For Sulfadimethoxine, Han Lu, Huang Mingyue, Yu Xiang, Li Sijia, Cao Jinbo, Wang Yao, Kang Huaibin
Food and Machinery
[Objective] To establish an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) for the detection of sulfadimethoxine (SDM) in animal-derived foods. [Methods] An artificial antigen is synthesized by conjugating SDM with carrier proteins by the diazotization method. A highly sensitive antibody against SDM is prepared by immunizing animals. Based on this, an ic-ELISA is established and the detection system is optimized. Its detection performance is characterized, and spiked recovery tests are carried out. [Results] When the concentration of the coating antigen is 0.500 μg/mL, the dilution ratio of the horseradish peroxidase-labeled goat anti-rabbit secondary antibody is 1:5000, the reaction time of the …
Authenticity Identification Of Camellia Seed Oil Based On Gas Chromatography And Chemometrics, Li Jingyan, Li Qin, Han Bo, Zhang Ruixue
Authenticity Identification Of Camellia Seed Oil Based On Gas Chromatography And Chemometrics, Li Jingyan, Li Qin, Han Bo, Zhang Ruixue
Food and Machinery
[Objective] To establish a method for authenticity identification of camellia seed oil. [Methods] The fatty acid composition of camellia seed oil and six common vegetable oils are determined by gas chromatography. Principal component analysis (PCA) is employed to explore the distribution patterns of fatty acids among the vegetable oils and to screen for potentially adulterated oils. Partial least squares discriminant analysis (PLS-DA) is applied to establish a model between fatty acid profiles and actual adulterated oils. Finally, multiple stepwise linear regression analysis is used to establish quantitative analysis models for adulteration in camellia seed oil. [Results] Among the six common …
Migration Volume Determination And Migration Patterns Of 11 Antioxidants From Degradable Polylactic Acid Straws, Luo Minting, Wu Zhihang, Hu Tengxin, Xu Qingpeng
Migration Volume Determination And Migration Patterns Of 11 Antioxidants From Degradable Polylactic Acid Straws, Luo Minting, Wu Zhihang, Hu Tengxin, Xu Qingpeng
Food and Machinery
[Objective] To establish a method for authenticity identification of camellia seed oil. [Methods] The fatty acid composition of camellia seed oil and six common vegetable oils are determined by gas chromatography. Principal component analysis (PCA) is employed to explore the distribution patterns of fatty acids among the vegetable oils and to screen for potentially adulterated oils. Partial least squares discriminant analysis (PLS-DA) is applied to establish a model between fatty acid profiles and actual adulterated oils. Finally, multiple stepwise linear regression analysis is used to establish quantitative analysis models for adulteration in camellia seed oil. [Results] Among the six common …
Determination Of Five Fluorescent Whitening Agents In Prepared Dishes By Gel Permeation Chromatography-High Performance Liquid Chromatography, Li Bingbing, Wang Chunlei, Huang Zhenzhen, Dai Li, Wang Kun
Determination Of Five Fluorescent Whitening Agents In Prepared Dishes By Gel Permeation Chromatography-High Performance Liquid Chromatography, Li Bingbing, Wang Chunlei, Huang Zhenzhen, Dai Li, Wang Kun
Food and Machinery
[Objective] To establish a method for the determination of five fluorescent whitening agents (FWAs) in prepared dishes using gel permeation chromatography combined with high-performance liquid chromatography (GPC-HPLC). [Methods] The prepared dish samples were homogenized, ultrasonically extracted with acetonitrile, purified and reconstituted by GPC, then filtered before being analyzed by HPLC. The separation was performed on a Waters Symnetry Shield PR-C18 column (4.6 mm ×250 mm, 5.0 µm) using acetonitrile and water as the mobile phase with gradient elution. [Results] The five FWAs in the prepared dishes showed good linearity within the range of 2~500 µg/L, with correlation coefficients greater than …
Determination Of Migration Level Of 4-Methyl- 1-Pentene And 1-Decene From Food Contact Materials Using Headspace-Gas Chromatography, Liu Afang, Chen Ranbing, Li Zheng, Kang Feng, Zhao Jinyao
Determination Of Migration Level Of 4-Methyl- 1-Pentene And 1-Decene From Food Contact Materials Using Headspace-Gas Chromatography, Liu Afang, Chen Ranbing, Li Zheng, Kang Feng, Zhao Jinyao
Food and Machinery
[Objective] This study aims to establish an analytical method for detecting the migration levels of 4-methyl-1-pentene and 1-decene monomers from food contact materials into four food simulants, including 4% acetic acid, 10% ethanol, 20% ethanol, and 50% ethanol. [Methods] Chromatographic columns of different polarities and specifications are compared to select the optimal column. The headspace equilibrium temperature and equilibrium time are optimized using peak area as the evaluation index. Methodological validation is performed by conducting recovery experiments at low, medium, and high spiking levels using the soaking solutions of the negative sample of the four food simulants as the matrix, …
A Surface Defect Detection Model For Fused Images Of Fruits Based On Improved Resnet 18, Si Haiping, Zhao Wenrui, Zhao Yuyang, Li Tingting, Fernado Bacao, Li Yanling
A Surface Defect Detection Model For Fused Images Of Fruits Based On Improved Resnet 18, Si Haiping, Zhao Wenrui, Zhao Yuyang, Li Tingting, Fernado Bacao, Li Yanling
Food and Machinery
[Objective] To enhance the accuracy of detecting fruit surface defects caused by minor mechanical friction during transportation. [Methods] A surface defect detection model for fused images of fruits based on improved ResNet 18 is proposed. To address the challenge of multi-scale feature extraction, the model incorporates a MELA module designed to capture image details more comprehensively. Additionally, an energy function-based regularization loss function is introduced to collaboratively optimize the training process alongside the cross-entropy loss function. Furthermore, a transfer learning strategy is employed to mitigate overfitting. [Results] Experimental results demonstrated that the improved model exhibits exceptional performance in fruit surface …
Non-Destructive Detection Of Pork Loin Freshness Based On The Yolo V 11 Model, Deng Zhonghui, Xie Wei
Non-Destructive Detection Of Pork Loin Freshness Based On The Yolo V 11 Model, Deng Zhonghui, Xie Wei
Food and Machinery
[Objective] To develop an intelligent method for non-destructive recognition of pork loin freshness based on computer vision technology, which is to be achieved by establishing a classification model for accurate, fast, and non-destructive detection of pork freshness in the cold chain industry. [Methods] A classification detection model is proposed based on the YOLO v11 architecture. First, total volatile basic nitrogen (TVB-N) content and pH values are measured before the meat samples are divided into three categories: "fresh", "less fresh", and "spoiled". A dataset of 4 680 high-resolution images is constructed (generated from 1 247 original images enhanced through operations such …
Application Of Slow-Release Plant Essential Oil Preservative Combined With Electron Beam Irradiation In The Preservation Of Shanghai Sand Pears (Pyrus Pyrifolia Nakai ), Yue Ling, Lei Lei, Kong Qiulian, Zheng Qi, Yan Weiqiang
Application Of Slow-Release Plant Essential Oil Preservative Combined With Electron Beam Irradiation In The Preservation Of Shanghai Sand Pears (Pyrus Pyrifolia Nakai ), Yue Ling, Lei Lei, Kong Qiulian, Zheng Qi, Yan Weiqiang
Food and Machinery
[Objective] To investigate the regulatory effects of a composite preservation technology combining slow-release plant essential oil (SPEO) with electron beam irradiation on the storage quality and physiological metabolism of Shanghai sand pears (Pyrus pyrifolia Nakai). [Methods] The fruits of Shanghai sand pear variety 'Cuiguan' are used as test materials. The experiment is conducted with four groups: control, 0.5 kGy electron beam irradiation, SPEO, and 0.5 kGy electron beam irradiation + SPEO. During storage, quality parameters including fruit firmness, weight loss rate, total soluble solids (TSS) content, titratable acid content, and vitamin C (VC) content, as well as physiological metabolism indicators …
Shrimp Freshness Indicator Film Based On Grape Seed Proanthocyanidin/Curcumin, Li Wenjing, Wang Hui, He Mingxing
Shrimp Freshness Indicator Film Based On Grape Seed Proanthocyanidin/Curcumin, Li Wenjing, Wang Hui, He Mingxing
Food and Machinery
[Objective] To develop a shrimp freshness indicator film with good amine responsiveness and stability for the rapid and non-destructive detection of shrimp quality changes. [Methods] Using sodium carboxymethyl cellulose and starch as film-forming substrates, indicator films were prepared with grape seed proanthocyanidins, curcumin, and their mixtures as indicators. The responses of the three indicator films to aqueous solution pH and trimethylamine were compared. The detection sensitivity and storage stability of the mixed indicator film were further evaluated. The indicator film was then applied to monitor the freshness of Litopenaeus vannamei, and the correlation and kinetics between total volatile basic nitrogen …
Effect Of Lotus Leaf Powder Addition On Whole Wheat Dough Characteristics And Whole Wheat Bread Quality, Chen Rui, Gong Lingxiao
Effect Of Lotus Leaf Powder Addition On Whole Wheat Dough Characteristics And Whole Wheat Bread Quality, Chen Rui, Gong Lingxiao
Food and Machinery
[Objective] To determine the optimum addition of lotus leaf powder in whole wheat flour, thus improving the nutritional value of whole wheat bread while maintaining high quality. [Methods] Rapid viscosity analyzer, rheometer, and texture analyzer are employed to explore the pasting properties of the composite flour, the rheological characteristics of the dough, and the texture properties of the bread. Additionally, the effect of lotus leaf powder on the quality of whole wheat bread is evaluated using a colorimeter, sensory evaluation, and in vitro digestion evaluation. [Results] The analysis reveals that as the lotus leaf powder addition is increased, a significant …
Effect Of Brewing Methods On Colloidal Particle Properties And Antioxidant Characteristics Of Coffee, Gao Guanzhen, Rao Pingfan, Han Cheng, Wang Huiqin, Shan Yunhui
Effect Of Brewing Methods On Colloidal Particle Properties And Antioxidant Characteristics Of Coffee, Gao Guanzhen, Rao Pingfan, Han Cheng, Wang Huiqin, Shan Yunhui
Food and Machinery
[Objective] To investigate the effects of three typical brewing methods - hand drip, French press, and Turkish coffee - on the chemical composition, colloidal structure, and antioxidant activity of coffee, and to elucidate the mechanism of colloidal particles in the delivery of bioactive compounds. [Methods] Three types of coffee samples are prepared using the respective brewing methods. Their physicochemical components are determined and colloidal properties are characterized. The true solution phase and colloidal phase are separated by ultrafiltration, and their in vitro chemical and intracellular antioxidant activities are comparatively evaluated. [Results] Turkish coffee exhibits the highest extraction yield, but thermal …