Mechanistic Insights into Nano-Maillard Reaction Products Regulating the Quality of Dried Abalones.

Broth cooking is a traditional pretreatment and ripening strategy for high-commercial-value dehydrated marine food, effectively enhancing its texture and rehydration properties. In this work, we characterized the structural information of Maillard reaction products (MRPs) derived from beef scrap stock and investigated their effects on the texture and rehydration performance of dehydrated abalone. The optical and structural properties of the MRPs were analyzed using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM), and fluorescence spectroscopy.

Insights into the construction of binary protein systems and exploration of gel properties: Effect of bee pupa powder on the gel properties of myofibrillar protein from Litopenaeus vannamei.

This investigation elucidated the effects of bee pupa powder (BPP) incorporation on the gelation behavior of Litopenaeus vannamei myofibrillar protein (MP), utilizing advanced microstructural analyses and molecular interaction assessments. Laser confocal microscopy revealed a homogeneous dispersion of BPP within the surimi matrix, with optimal BPP: MP ratios (1:20, w/w) facilitating the unfolding of tertiary protein structures through enhanced hydrophobic interactions and disulfide bond formation, thereby reinforcing the three-dimensional gel network. Beyond this threshold, steric hindrance effects predominated, diminishing interfacial interactions and gel integrity.

The Effects of Ultra-High Pressure Combined with Egg White Protein on the Gel Physical Properties of Reduced-Salt Shrimp Surimi.

This study investigated the synergistic effects of ultra-high pressure (UHP) and egg white protein (EWP) on the gel properties of sodium-reduced shrimp surimi. A Box-Behnken design targeting UHP pressure (200-400 MPa), duration (10-20 min), and EWP/myofibrillar protein (MP) ratio (1:9-5:5) was implemented to optimize gel strength, water holding capacity (WHC), and whiteness. Optimal conditions (290 MPa/15 min/EWP:MP = 3:5) yielded the following validated improvements, versus conventional processing: 282.

Zinc-binding mechanism of synthetic oyster peptides and their taste sensory characteristics: Insight into umami and saltiness perception.

Oyster-derived synthetic peptides (ILAPPER and DGKGKIPEE) formed IZn and DZn by chelating with zinc ions (97.8 % and 98.9 %), resulting in conformational changes.

Effects of a Hypotension-Avoidance Versus a Hypertension-Avoidance Strategy on Neurocognitive Outcomes After Noncardiac Surgery.

Background: Perioperative hemodynamic abnormalities have been associated with neurocognitive outcomes after noncardiac surgery.

Objective: To compare the effects of perioperative hypotension-avoidance versus hypertension-avoidance strategies on delirium and 1-year cognitive decline after noncardiac surgery.

Design: Randomized controlled trial.

Wavelength-Selective Control of Visible Light Absorption through Capping-Assisted Oxygen Migration in Oxide Heterostructures.

Oxygen concentration critically determines the physical properties of transition metal oxides. In this work, we realized a subtle modulation of the oxygen concentration in heterostructures composed of perovskite SrTiO (STO) and brownmillerite SrCoO (BM-SCO) by deliberately promoting oxygen migration from the oxygen reservoir to BM-SCO with the assistance of STO capping. A small increase in the oxygen concentration was demonstrated to exclusively change the interorbital transition that is mostly related to the O 2p states in BM-SCO.

Controlled Synthesis of CsNaYF: Tb Nanoparticles for High-Resolution X-Ray Imaging and Molecular Detection.

Rare-earth-doped fluoride nanoparticles (NPs), known for their tunable luminescence and high chemical stability, hold significant potential for applications in X-ray imaging and radiation dose monitoring. However, most research has primarily focused on lanthanide-doped NaLuF or NaYF nanosystems. In this work, CsNaYF:Tb NPs with enhanced X-ray excited optical luminescence (XEOL) intensity were developed.

Lipid-protein synergistic micronized salt composite: High-pressure homogenization for enhanced sodium dispersion and thermal stability.

This study presents an innovative sodium-reducing composite powder salt (CPS) developed by integrating whey protein isolate (WPI), milk fat, and micronized NaCl through high-pressure homogenization (HPH) and freeze-drying techniques. HPH at 300 Bar significantly optimized emulsion stability, resulting in a particle size reduction (25.24 % smaller compared to 100 Bar), enhanced surface hydrophobicity (contact angle: 76.

Sensory characteristics and key odor-active compounds of oxidized Antarctic krill oil: A comparative study with oxidized fish oil.

Oxidized Antarctic krill oil (AKO) has unique sensory characteristics that have not been fully elucidated. This study was aimed to explore the sensory characteristics and key odor-active compounds of oxidized AKO by comparing with oxidized fish oil (FO) through accelerating storage experiments. The sensory evaluation results exhibited that oxidized AKO had a distinct ammonia odor and oxidized FO had an obvious fishy odor.

Effect of air frying on in vitro digestion and transport properties of scallop (Patinopecten yessoensis) adductor muscles: Insights from peptidomics analyses.

The fresh and air-fried scallop adductor muscles (SAM) were subjected to simulate gastrointestinal digestion. Peptidomics technology using LC-MS/MS determined 1920, 2288, 1870 peptides (tripeptides and above) in digestive products from fresh, 160 °C-, and 200 °C-heated groups, with the 160 °C-heated group having more tripeptides. By contrast, the main parent proteins such as myosin heavy chain, actin and paramyosin in 160 °C-heated group released more peptides.

Rumination and drug craving scores in Chinese male patients with methamphetamine and heroin use disorders: a cross-sectional study.

Background: Rumination is an essential trans-diagnostic process associated with substance use disorders (SUDs) in psychopathology. In China, methamphetamine and heroin have become major illegal drugs, but the role of rumination in their use remains unclear. The objective of this study was to investigate the relationship between rumination subtypes and drug craving in patients with methamphetamine use disorder (MAUD) and 81 patients with heroin use disorder (HUD).

Interactions Between Depressive Symptoms, Childhood Trauma, and Drug Craving in Chinese Men with Methamphetamine Use Disorder: A Network Analysis.

Drug craving in methamphetamine use disorder (MAUD) patients is influenced by various adverse psychological problems. This study adopted network analysis to investigate the interrelationships between psychological correlates and drug craving and identify the critical pathways between them. A total of 757 men with MAUD were recruited from a drug rehabilitation center in southwest China.

Characterization of a novel chickpea protein-pullulan hydrogels that efficiently load and release sodium salts: Microstructures, molecular dynamics, and rheological properties.

This study investigated the gel properties, structural characteristics, and Na loading capacity of hydrogels formed by chickpea protein isolate (CPI) and pullulan (PUL). The aim was to explore their potential as polymers for enhancing Na distribution and facilitating Na release in reduced-salt foods. The results showed that the CPI-PUL hydrogels added with 2 % PUL exhibited the highest water holding capacity (70.

Construction and characterisation of mung bean protein isolate/carboxymethyl konjac glucomannan sodium hydrogels: Gel properties, structural properties, microstructure, sodium salt release, and 3D printing.

This study proposed a hydrogel system using mung bean protein isolate (MPI) and carboxymethyl konjac glucomannan (CKGM). The effects of CKGM addition on the gel properties, structural characteristics, and Na loading capacity of the MPI-CKGM system were investigated. FTIR and molecular docking techniques demonstrated that MPI and CKGM formed hydrogels via hydrogen bonding interactions.

Elevating sensory quality through a dual-acid preservation strategy in ready-to-eat crayfish (Procambarus clarkii).

This study presents a targeted dual-acid preservation strategy for ready-to-eat crayfish (Procambarus clarkii), integrating a blend of phytic and lactic acids to fortify key sensory attributes throughout the storage phase. The primary objective was to maintain the sensory attributes of the crayfish during a 30-day storage period under 40 °C. Our approach significantly bolstered color retention by suppressing Maillard reactions and lipid oxidation, thereby maintaining the product's visual allure.

Glycosylation of oyster peptides by COS ameliorates zinc deficiency-induced syndromes: intestinal inflammation and imbalance of the gut microbiota .

Zinc is essential for maintaining the integrity and repair of small intestinal epithelial cells while zinc deficiency could induce the inflammatory infiltration and imbalance of intestinal flora in the intestine. In this study, glycosylation between oyster protein hydrolysate (OPH) and chitosan oligosaccharide (COS) was conducted and used as the carrier of zinc ions (OCZn). The results of zeta potential and particle size distribution showed that the OPH-COS successfully bound to zinc ions to form OCZn with a surface zinc content of 0.

Differences and mechanisms of color deterioration in three types of ready-to-eat shellfishes during storage.

Ready-to-eat (RTE) abalones, scallops and oysters were prepared through a process of cooking, drying, vacuum packaging, and high-temperature sterilization, and were subjected to accelerated storage. Upon storage, the three RTE shellfishes all showed color deterioration, as indicated by darker color, decreased L* and W* values, and increased a* value. In contrast, the color deterioration of RTE oysters was more pronounced.

Recovery effects of sodium carboxymethylcellulose-xanthan gum hydrogels containing peptide‑iron complexes against iron deficient anemia in vivo.

In this study, the sodium carboxymethylcellulose (CMC) and xanthan gum (XG) were used to prepare the CXM-Fe hydrogels (CMC: 20 mg/mL, XG: 10 mg/mL) with the addition of Mytilus edulis protein hydrolysate‑iron (MEPH-Fe) complexes. The incorporation of MEPH-Fe complexes formed a denser network structure and the CXM-Fe hydrogels had better pH stability as well as gastrointestinal retention ability. Compared with ferrous sulfate and MEPH-Fe complexes, the CXM-Fe hydrogels at moderate doses (Fe:2 mg/kg) showed impressive recovery effects on iron deficiency anemia (IDA) mice in terms of hematological indices, organ coefficients and iron content, antioxidant capacity, and remarkedly attenuated the infiltration of inflammatory cells as well as the levels of inflammatory factors in iron deficiency-induced colonic inflammation.

Preparation and characterization of white shrimp hydrolysate-xylooligosaccharide Maillard products and their promotive effects of zinc absorption in mice.

The Maillard reaction products, as a kind of glycosylation-based reaction, possess the metal-chelating ability. In this study, the white shrimp hydrolysate (WH) and xylooligosaccharides (XOS) were used to prepare the Maillard reaction product-zinc complex (WH-XOS-MR-Zn) with zinc ions. The Maillard reaction conditions, such as pH level, temperature, reaction time, and the ratio of XOS to WH, were selected by testing the products' zinc-chelating capacity, while the optimized conditions (zinc-chelating capacity = 64.

Effects of ultrahigh pressure heat-assisted technology on the physicochemical and gelling properties of myofibrillar protein from Penaeus vannamei.

This study investigated the changes in conformation and gelling properties of myofibrillar protein (MP) from Penaeus vannamei under various ultrahigh pressure (UHP)-heat assisted technologies. The results indicated that UHP heat-assisted technology enhanced the cross-linking of the gel network by causing a rearrangement of the secondary structure of MP. Microstructural analysis revealed that MP gels treated with UHP heat-assisted technology exhibited a more uniform gel network structure.

The change rule of lipid oxidation and hydrolysis driven via water in Antarctic krill oil: Based on association colloid formation.

The residual water and amphiphilic compounds such as phospholipids in bulk oil can form reverse micelles, which affect oxidative stability. In this study, the Antarctic krill oil (AKO) samples with different water contents were subjected to accelerated storage. During storage, AKO exhibited oxidative changes, manifested as increased POV, TBARS values, and volatile compound levels but decreased PUFA percentages.

An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures.

All-insulator heterostructures with an emerging metallicity are at the forefront of material science, which typically contain at least one band insulator while it is not necessary to be. Here we show emergent phenomena in a series of all-correlated-insulator heterostructures that composed of insulating CaIrO and insulating LaSrMnO. We observed an intriguing insulator-to-metal transition, that depends delicately on the thickness of the iridate component.