Impact of Myofibrillar Protein Emulsion With Different Pre-Emulsified Soybean Oil Contents on the Freeze-Thaw Cycles Characteristics of Surimi Gel.

The research examines how myofibrillar protein emulsion with different pre-emulsified soybean oil (PESO) levels (0%, 6%, 8%, and 10%) influences surimi gel across seven freeze-thaw (F-T) cycles. The addition of PESO led to a notable improvement in gel strength and whiteness. Significant increases were also noted in hardness, water-holding capacity (WHC), and the maximum relaxation time of the immobilized water (p < 0.

Characterization of off-flavor compounds in ready-to-heat roasted catfish after reheating by sensomics approach.

Gas chromatography-electronic nose (GC-E-Nose), gc-ion mobility spectrometry (GC-IMS), and gc-olfactory-mass spectrometry (GC-O-MS) techniques, along with odor recombination and omission experiments, were employed to characterize the off-flavors in commercially available ready-to-heat roasted catfish after reheating. A total of 19 (DR), 11 (HR), and 21 (YR) characteristic compounds were identified across the three samples. The 19 characteristic compounds from the DR group were reconstituted to develop recombination and omission models.

Towards healthier surimi: quality and nutritional benefits of flaxseed gum as a fat replacer in grass carp surimi gels.

This study evaluated the effects of replacing animal fat with flaxseed gum (FG) on the quality of grass carp surimi gels. Moderate FG substitution improved gel strength, elasticity, and texture. Low-field nuclear magnetic resonance analyses indicated that 60 % FG enhanced moisture distribution.

Efficient expression of a novel -amylase for reduction of tobacco starch and smoke hazard.

The combustion of excessive starch in tobacco leaves leads to more harmful substances, adversely affecting the sensory properties of tobacco and posing significant risks to human health. Therefore, there is an urgent need to develop specific amylases targeting tobacco starch to address these issues. In this study, 5 different -amylase genes were selected for recombinant expression in BAX-5, and the (derived from MK10163) was confirmed to be the optimal gene.

Leveraging ultra-micro crayfish shell powder to modulate protein digestion and health benefits in silver carp surimi.

This study examined the effects of ball-milled crayfish shell powder (MD) and ball milling combined with irradiation crayfish shell powder (MID) on the digestion behaviors of silver carp surimi. During simulated digestion, surimi supplemented with crayfish shell powder exhibited reduced protein digestibility and hydrolysis. Furthermore, compared to surimi without crayfish shell powder, these samples showed larger digestate particle size, enhanced cholesterol-lowering activity, and increased release of essential amino acids.

Novel Computational Approaches in the Discovery and Identification of Bioactive Peptides: A Bioinformatics Perspective.

Bioactive peptides are protein molecules known for their specific biological functions, offering promising applications across various fields including medicine, food, and cosmetics. Traditional approaches to the investigation of bioactive peptides typically encompass extraction, separation, purification, identification, and experimental evaluation. However, these methodologies are frequently subject to human-related variables, which consequently lead to reduced efficiency and compromised accuracy.

Binding interaction between rice bran albumin and sweet potato leaves polyphenol: Multi-spectroscopic and simulated molecular docking analysis.

In this study, the changes in functional properties and binding mechanisms at the molecular level of a non-covalent complex formed between sweet potato leaf polyphenols (SPLPs) and rice bran albumin (RBA) were investigated. Multi-spectral analysis indicated that SPLPs statically quenched the intrinsic fluorescence of RBA, and fitting to a double logarithmic equation revealed that hydrogen bonding constituted the primary driving force behind this interaction. Consequently, the conformational structure, microenvironment, and surface hydrophobicity of RBA were significantly impacted.

Pollution characteristics and health risk assessment of organophosphate esters in agricultural products from different regions of China.

Organophosphate esters (OPEs) have been extensively utilized as flame retardants and plasticizers, raising significant concerns because of their persistence in the environment, mobility, and potential health risks. This study systematically analyzed the occurrence, spatial distribution, and health risks of 21 target OPEs in 232 agricultural product samples (including vegetables, fruits, grains, and animal products) collected from five regions in China: Shanghai, Liaoning, Qinghai, Sichuan, and Tibet. The results showed that the ∑ OPEs concentrations ranged from ND (not detected) to 2381.

The effects of different thermal processing methods on the protein structure and digestibility of .

is a commercially important freshwater crustacean species. This study examined the effects of different thermal processing methods (hot water steam treatment: HS, cold water steam treatment: CS, hot water boiling: HB, and cold water boiling: CB) on the protein structure and digestibility of . The results indicated that different thermal treatments had significant effects on the integrity and digestibility of the protein structure.

Flavor formation and phospholipids degradation of crayfish meat treated by boiling combined air-frying during accelerated storage.

Thermal treatment is an essential processing method in crayfish processing. This study analyzed the changes in lipids and volatile compounds in crayfish muscle subjected to three thermal processes: boiling (BO), air-frying (AF), and boiling combined air-frying (BO-AF). Aldehydes and heterocyclic compounds were found to be the predominant volatile compounds in crayfish muscle during thermal processing and storage.

Enhancing surimi gel properties in silver carp with innovative ultra-micro crayfish shell powder.

This study investigated the preparation and application of ultra-micro crayfish shell powder to enhance the quality of surimi gels. A combination of ball milling and irradiation techniques produced an innovative powder (MID) with reduced particle size and enhanced zeta potential, dispersibility, Ca release, and hydrogen bonding energy (p < 0.05), while maintaining its composition.

Nanoemulsions base on the Rice bran albumin-sweet potato leaf polyphenol-dextran complexes: Interaction mechanisms, stability and Astaxanthin release behaviour.

In this study, rice bran albumin (RBA), sweet potato leaf polyphenols (SPLPs) and dextran were conjugated through covalent or non-covalent interactions to improve the stability and bioaccessibility of astaxanthin (AST) in emulsion systems. It was shown that the RBA-SPLPs-Dex ternary covalent complex demonstrated higher polysaccharide grafting, looser secondary structure, and exposed hydrophobic groups indicating that they were favourable for emulsion stabilisation. In long-term storage tests, RBA-SPLPs emulsifier modified by 50 mg/mL dextran (Dextran50) showed smaller particle size and cream index, respectively.

A highly branched glucomannan from the fruiting body of Schizophyllum commune: Structural characteristics and antitumor properties analysis.

In this study, a highly branched glucomannan (SCP-1) from Schizophyllum commune fruiting body with good solubility was isolated, and its structural characteristics and antitumor properties were analyzed. The monosaccharides of SCP-1 were fucose, glucosamine hydrochloride, galactose, glucose and mannose with a relative molar ratio of 14:6:210:593:177, and the molecular weight (Mw) of SCP-1 was 15.1 kDa.

Characterization of a novel phage SPX1 and biological control for biofilm of Shewanella in shrimp and food contact surfaces.

Shewanella putrefaciens, commonly found in seafood, forms tenacious biofilms on various surfaces, contributing to spoilage and cross-contamination. Bacteriophages, owing to their potent lytic capabilities, have emerged as novel and safe options for preventing and eliminating contaminants across various foods and food processing environments. In this study, a novel phage SPX1 was isolated, characterized by a high burst size (43.

Chemical composition analysis and transcriptomics reveal the R2R3-MYB genes and phenol oxidases regulating the melanin formation in black radish.

Melanins are dark-brown to black-colored biomacromolecules which have been thoroughly studied in animals and microorganisms. However, the biochemical and molecular basis of plant melanins are poorly understood. We first characterized melanin from the black radish (Raphanus sativus var.

In Vitro Gastrointestinal Digestion of Various Sweet Potato Leaves: Polyphenol Profiles, Bioaccessibility and Bioavailability Elucidation.

The chemical composition discrepancies of five sweet potato leaves (SPLs) and their phenolic profile variations during in vitro digestion were investigated. The results indicated that Ecaishu No. 10 (EC10) provided better retention capacity for phenolic compounds after drying.

Metabolomics, volatolomics, and bioinformatics analyses of the effects of ultra-high pressure pretreatment on taste and flavour parameters of cured Culter alburnus.

The effects of ultra-high pressure (UHP) pretreatment (50-250 MPa) on the fish curing were studied. UHP increased the overall volatile compound concentration of cured fish. Among 50-250 MPa five treatment groups, 150 MPa UHP group exhibited the highest total free amino acid content (294.

Complexes of Soluble Dietary Fiber and Polyphenols from Lotus Root Regulate High-Fat Diet-Induced Hyperlipidemia in Mice.

In this paper, complexes of soluble dietary fiber (SDF) and polyphenols (PPs) isolated from lotus roots were prepared (SDF-PPs), as well as physical mixtures (SDF&PPs), which were given to high-fat-diet (HFD)-fed mice. The results demonstrated that SDF-PPs improve lipid levels and reverse liver injury in hyperlipidemic mice. Western blotting and real-time quantitative Polymerase Chain Reaction (RT-qPCR) results showed that SDF-PPs regulated liver lipids by increasing the phosphorylation of Adenine monophosphate activated protein kinase (AMPK), up-regulating the expression of Carnitine palmitoyltransferase1 (CPT1), and down-regulating the expression of Fatty acid synthase (FAS) and 3-hydroxy-3-methyl glutaryl coenzyme A (HMG-CoA), as well as the transcription factor sterol-regulatory element binding protein (SPEBP-1) and its downstream liposynthesis genes.

Effects of different oil fractions and tannic acid concentrations on konjac glucomannan-stabilized emulsions.

Polysaccharide-stabilized emulsions have received extensive attention, but emulsifying activity of polysaccharides is poor. In this study, konjac glucomannan (KGM) and tannic acid (TA) complex (KGM-TA) was prepared via non-covalent binding to increase the polysaccharide interfacial stability. The emulsifying stabilities of KGM-TA complex-stabilized emulsions were analyzed under different TA concentrations and oil fractions.

Difference in muscle metabolism caused by metabolism disorder of rainbow trout liver exposed to ammonia stress.

Ammonia pollution is an important environmental stress factors in water eutrophication. The intrinsic effects of ammonia stress on liver toxicity and muscle quality of rainbow trout were still unclear. In this study, we focused on investigating difference in muscle metabolism caused by metabolism disorder of rainbow trout liver at exposure times of 0, 3, 6, 9 h at 30 mg/L concentrations.

Inhibition mechanism of crude lipopeptide from Bacillus subtilis against Aeromonas veronii growth, biofilm formation, and spoilage of channel catfish flesh.

Aeromonas veronii is associated with food spoilage and some human diseases, such as diarrhea, gastroenteritis, hemorrhagic septicemia or asymptomatic and even death. This research investigated the mechanism of the growth, biofilm formation, virulence, stress resistance, and spoilage potential of Bacillus subtilis lipopeptide against Aeromonas veronii. Lipopeptides suppressed the transmembrane transport of Aeromonas veronii by changing the cell membrane's permeability, the structure of membrane proteins, and Na/K-ATPase.

Phenolic Profile and Bioactivity Changes of Lotus Seedpod and Litchi Pericarp Procyanidins: Effect of Probiotic Bacteria Biotransformation.

Theoretically, lactic acid bacteria (LABs) could degrade polyphenols into small molecular compounds. In this study, the biotransformation of lotus seedpod and litchi pericarp procyanidins by (), (), (), and 06 () were analysed. The growth curve results indicated that procyanidins did not significantly inhibit the proliferation of LABs.

Enhancing activity of food protein-derived peptides: An overview of pretreatment, preparation, and modification methods.

Food protein-derived peptides have garnered considerable attention due to their potential bioactivities and functional properties. However, the limited activity poses a challenge in effective utilization aspects. To overcome this hurdle, various methods have been explored to enhance the activity of these peptides.