Publications by authors named "Gangchun Xu"

To investigate the potential of ferulic acid (FA) in attenuating the deleterious effects of oxidized fish oil (OF) on , four experimental diets were formulated: 3% fresh fish oil (CT group, peroxide value: 2.2 mmol/kg), 3% oxidized fish oil (OF group, peroxide value: 318 mmol/kg), and 3% OF with an additional 160 and 320 mg/kg of FA (OF+FA160 group and OF+FA320 group, respectively). (initial weight: 0.

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Studies showed that contaminants adhered to the surface of nano-polystyrene microplastics (NPs) have a toxicological effect. Juveniles tilapia were dispersed into four groups: the control group A, 75 nm NPs exposed group B, 5 ng·L 2,2',4,4',5,5'-hexabromodiphenyl ether group C (BDE), and 5 ng·L BDE + 75 nm MPs group D, and acutely exposed for 2, 4 and 8 days. The hepatic histopathological change, enzymatic activities, transcriptomics, and proteomics, have been performed in tilapia.

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Studies showed that toxicants that adhered to the surface of nano-microplastics (NPs) have toxicological effects. Juvenile tilapia were divided into four groups namely the control group (A), 100 ng·L sulfamethoxazole (SMZ) group (B), 75 nm NPs group (C) and SMZ + 75 nm NPs group (D), and were exposed to an acute test for 2, 4 and 8 days. The hepatic histopathological changes, enzymatic activities, transcriptomics and proteomics analysis have been performed.

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Large-scale intensive feeding triggered reduced growth performance and nutritional value. Exogenous probiotics can promote the growth performance and nutritional value of fish through improving the intestinal microbiota. However, detailed research on the correlation between the intestinal microbiota, growth performance, and nutritional value remains to be elucidated.

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Article Synopsis
  • * Increased salinity raises osmotic pressure and boosts antioxidant enzyme activities, leading to improved meat texture and water-holding capacity.
  • * Higher salinity enhances the flavor profile, increasing the umami taste and beneficial fatty acid ratios, indicating it could be an effective method for improving the overall meat quality of adult aquatic species.
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  • - This research examined how deltamethrin affects the health of juvenile Chinese mitten crabs, focusing on toxicity levels and immune responses, finding a 96-hour lethal concentration (LC50) of 7.195 μg/L.
  • - After 48 hours of exposure, there were significant increases in various immune-related enzymes and pro-inflammatory cytokines, as well as changes in oxidative stress markers and lipid metabolism indicators.
  • - Advanced techniques like transcriptomics and metabolomics revealed that deltamethrin disrupts lipid metabolism in the crab's hepatopancreas, affecting gene expression related to lipid accumulation and immune signaling pathways.
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  • - Protein-based emulsion gels, specifically made from freshwater mussel protein isolate (SoPI) and κ-carrageenan (κ-CG), serve as an effective delivery system for curcumin due to their efficient encapsulation and customizable digestive properties.
  • - The addition of κ-CG significantly enhances gel strength and stabilizes curcumin, with a notable encapsulation efficiency of about 95% and improved stability over time—approximately 80% curcumin retained after 21 days at high temperature and 90% after simulated digestion.
  • - Optimal concentrations of κ-CG (especially at 0.50%) maximize bioaccessibility for curcumin (around 60%), highlighting the potential for SoPI emulsion gels in
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  • A rare freshwater shellfish native to China has high-quality proteins but suffers from poor solubility and functionality in food applications.
  • Researchers used an alkaline dissolution-isoelectric precipitation method paired with high-pressure homogenization (HPH) to enhance the proteins’ properties.
  • HPH treatment improved the proteins' solubility and functional characteristics by altering their structure, making them more effective for emulsifying, foaming, and digestion purposes.
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Fish exhibit varying responses to polystyrene microplastics (MPs) depending on particle size. Previous studies suggested that microorganisms adhering to the surface of MPs can induce toxic effects. In this study, Tilapia were exposed to MPs of control (group A), 75 nm (B), 7.

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In the context of global warming, the accelerated evaporation of seawater will lead to a continuous expansion of saline-alkali land area. As an important economic freshwater crustacean, investigation on the mechanism of damage to Eriocheir sinensis (E. sinensis) under saline-alkali environment will provide a valuable precedent for understanding the detrimental effect of climate change on crustaceans.

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Global food systems are currently facing great challenges, such as food sources, food safety, and environmental crises. Alternative nutritional resources have been proposed as part of the solution to meeting future global food demand. In the natural resources, shellfish are the major component of global aquatic animals.

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The cerebral ganglion and muscle are important regulatory tissues in . Therefore, it is of great significance to explore their synergistic roles in this organism's anti-stress response. In this study, proteomics, metabolomics, and combination analyses of the cerebral ganglion and muscle of under alkalinity stress were performed.

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(1) The development and utilization of the vast saline-alkali land worldwide is an important way to solve the worsening food crisis. , due to its strong osmotic regulation capability and its characteristics of being suitable for culturing in alkaline water, has become a potential aquaculture species in saline-alkali water. The brain and heart are the key tissues for signal transduction and energy supply under environmental stress.

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Solenaia oleivora is a valuable freshwater mussel endemic to China with a high content of high-quality proteins, but the lack of structural information and limited functionality of Solenaia oleivora proteins constrained their application in the food industry. This study investigates the changes in structural characteristics and functionality of Solenaia oleivora protein under ultrasound processing at power from 200 to 600 W. The ultrasound treatment caused increased contents of β-turn and α-helix, and the exposure of interior hydrophobic groups, resulting in the increased hydrophobicity by around 3 folds.

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Background: Air exposure is an inevitable source of stress that leads to significant mortality in Coilia nasus. Our previous research demonstrated that adding 10‰ NaCl to aquatic water could enhance survival rates, albeit the molecular mechanisms involved in air exposure and salinity mitigation remained unclear. Conversely, salinity mitigation resulted in decreased plasma glucose levels and improved antioxidative activity.

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Geographical traceability plays a crucial role in ensuring quality assurance, brand establishment, and the sustainable development of the crab industry. In this study, we examined the possibility of using gas chromatography-ion mobility spectrometry with multivariate statistical authenticity analysis to identify the origin of crabs from five sites downstream of the Yangtze River. Significant variations were observed in the levels of alcoholic flavor compounds in the hepatopancreas and muscles of crabs from different geographical locations, and a support vector machine exhibited discriminant ability with 100% accuracy.

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Coilia nasus is an anadromous fish that has been successfully domesticated in the last decade due to its high economic value. The fish exhibits a delayed ovary development during the reproductive season, despite breeding and selection for five to six offspring. The molecular mechanism of the delayed ovary development is still unknown, so the obstacles have not been removed in the large-scale breeding program.

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Muscle protein stability during freeze-thaw (F-T) cycles was investigated with tilapia cultured in recirculating aquaculture systems (RAS) and traditional aquaculture in ponds (TAP). This study found that fatty acids (eg., palmitic acid) were enriched in TAP, while antioxidants (eg.

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With the development of large-scale intensive feeding, growth performance and animal welfare have attracted more and more attention. Exogenous probiotics can promote the growth performance of fish through improving intestinal microbiota; however, it remains unclear whether intestinal microbiota influence physiological biomarkers. Therefore, we performed metagenomic and metabolomic analysis to investigate the effects of a 90-day Lactiplantibacillus plantarum supplementation to a basal diet (1.

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Recently, probiotics have been widely applied for the in situ remediation of aquatic water. Numerous studies have proved that probiotics can regulate water quality by improving the microbial community. Nitrogen cycling, induced by microorganisms, is a crucial process for maintaining the balance of the aquatic ecosystem.

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Polyethylene microplastics (MPs) of the different sizes may result in different response in fish. Studies showed microorganisms adhered to the surface of MPs have toxicological effect. Juveniles tilapia (Oreochromis niloticus, n = 600, 26.

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Due to the strong response to air exposure, high mortality was occurred in Coilia nasus. Previous studies reported that 10 ‰ NaCl could significantly reduce mortality in C. nasus under air exposure.

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Most toxicity studies of prometryn in non-target aquatic animals have focused on hepatotoxicity, cardiotoxicity, embryonic developmental and growth toxicity, while studies on the molecular mechanisms of intestinal toxicity of prometryn are still unknown. In the current study, the intestinal tissues of the Chinese mitten crab (Eriocheir sinensis) were used to uncover the underlying molecular mechanisms of stress by 96-h acute in vivo exposure to prometryn. The results showed that prometryn activated the Nrf2-Keap1 pathway and up-regulated the expression of downstream antioxidant genes.

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Feeding high-fat (HF) diets has been shown to cause hepatic and intestinal impairment in fish species, but the mode of action, especially the pathways involved in the intestine, has not been determined yet. In this study, the effects of resveratrol (RES) supplementation on the intestinal structure, microbial flora, and fat metabolism in red tilapia (Oreochromis niloticus) were determined. The results showed RES maintained the structural integrity of the intestine and significantly increased the number of goblet cells in the midgut.

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Recent studies have revealed a significant presence of microplastics (MPs) in freshwater ecosystems, raising concerns about their potential negative impacts on the growth and development of freshwater organisms. The present study was conducted to examine the effects of chronic sub-lethal doses of polystyrene microsphere MPs on the oxidative status (ROS, SOD) and the immune response (IL-1ß, TNF-α) of genetically improved farmed tilapia (a kind of tilapia hereafter referred to as GIFT). GIFT juveniles (5.

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