Modification of low-salt myofibrillar protein using combined ultrasound pre-treatment and konjac glucomannan for improving gelling properties: Intermolecular interaction and filling effect.

Int J Biol Macromol

Laboratory of Agricultural and Food Biophysics, Institute of Biophysics, College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Muscle Biology and Meat Science, National Beef Cattle Improvement Center, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Meat Quality Analysis and Products Development, Ningxia Xihaigu Institute of High-end Cattle Industry, Haiyuan Hairun Agricultural Company, Haiyuan, Ningxia 755299, China. Electronic address:

Published: October 2023

The quality deterioration of low-salt meat products has been gained ongoing focus of researchers. In this study, konjac glucomannan (KGM) was used to alleviate the finiteness of ultrasound treatment on the quality improvement of low-salt myofibrillar protein (MP), and the modification sequence was also investigated. The results revealed that the single and double sequential modification by utilizing KGM and ultrasound significantly influenced the gelation behavior of low-salt MPs. The uniform MP-KGM mixture formed by a single ultrasound treatment had limited protein unfolding, resulting in relatively weak intermolecular forces in the composite gel. Importantly, ultrasound pre-treatment combined with KGM modification promoted the unfolding and moderate thermal aggregation of proteins and remarkably improved the rheological behaviors and gel strength of the composite gel. This result could also be corroborated by the highest percentage of trans-gauche-trans conformation of SS bridges and maximum β-sheet proportion. Furthermore, molecular dynamic simulation and molecular docking elucidated that the hydrogen bond length between protein and KGM was shortened after ultrasound pre-treatment, which was the molecular basis for the enhanced intermolecular interactions. Therefore, ultrasound pre-treatment combined with KGM can effectively improve the gelling properties of low-salt MPs, providing a practical method for the processing of low-salt meat products.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ijbiomac.2023.126195DOI Listing

Publication Analysis

Top Keywords

ultrasound pre-treatment
16
low-salt myofibrillar
8
myofibrillar protein
8
konjac glucomannan
8
gelling properties
8
low-salt meat
8
meat products
8
ultrasound treatment
8
low-salt mps
8
composite gel
8

Similar Publications

Effect of Ultrasound Treatment on Structural and Physical Properties of Native Maize Starch.

Plant Foods Hum Nutr

January 2025

Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC) - CONICET-UNC, Av. Juan Filloy S/N, Ciudad Universitaria, Córdoba, Argentina.

The focus of this work was to evaluate the differences between the thermal and mechanical effects generated by ultrasound waves on the properties of corn starch, which facilitate the subsequent enzymatic hydrolysis for the generation of porous starches. The results showed that both the thermal and mechanical effects have the capacity to disorganize/alter the structure of starch, impacting on its properties. Characteristics such as particle size, pasting and thermal properties (peak viscosity 1400-1800 cp.

View Article and Find Full Text PDF

To establish and validate a nomogram based on clinical characteristics and metabolic parameters derived from F-fluorodeoxyglucose positron emission tomography and computed tomography (F-FDG PET/CT) for prediction of high-grade patterns (HGP) in invasive lung adenocarcinoma. The clinical and PET/CT image data of 311 patients who were confirmed invasive lung adenocarcinoma and underwent pre-treatment F-FDG PET/CT scan in Beijing Hospital between October 2017 and March 2022 were retrospectively collected. The enrolled patients were divided into HGP group (196 patients) and non-HGP group (115 patients) according to the presence and absence of HGP.

View Article and Find Full Text PDF

Artificial Intelligence and Radiomics in Cholangiocarcinoma: A Comprehensive Review.

Diagnostics (Basel)

January 2025

Department of Medical Surgical Sciences and Translational Medicine, Sapienza-University of Rome, Radiology Unit-Sant'Andrea University Hospital, 00189 Rome, Italy.

Cholangiocarcinoma (CCA) is a malignant biliary system tumor and the second most common primary hepatic neoplasm, following hepatocellular carcinoma. CCA still has an extremely high unfavorable prognosis, regardless of type and location, and complete surgical resection remains the only curative therapeutic option; however, due to the underhanded onset and rapid progression of CCA, most patients present with advanced stages at first diagnosis, with only 30 to 60% of CCA patients eligible for surgery. Recent innovations in medical imaging combined with the use of radiomics and artificial intelligence (AI) can lead to improvements in the early detection, characterization, and pre-treatment staging of these tumors, guiding clinicians to make personalized therapeutic strategies.

View Article and Find Full Text PDF

Comparison of radiofrequency ablation, microwave ablation and high-intensity focused ultrasound for hepatocellular carcinoma: a retrospective study.

HPB (Oxford)

January 2025

Department of Surgery, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China; Department of Surgery, University of Hong Kong, 102 Pokfulam Road, Hong Kong, China.

Background: The recommended first-line treatment for respectable hepatocellular carcinoma (HCC) is surgical resection, but local ablation has gained popularity as a safe alternative. This study aims to compare the effectiveness of radiofrequency ablation (RFA), microwave ablation (MWA) and high-intensity focused ultrasound (HIFU) as first-line treatments for HCC.

Methods: In this single-centre retrospective study, 352 patients receiving RFA, MWA, or HIFU as first-line treatment for HCC were included.

View Article and Find Full Text PDF

Objectives: To evaluate the combined effect of two different regenerative therapies, extracorporeal shock wave therapy (ESWT) and platelet-rich plasma (PRP), along with therapeutic exercise, in patients with lateral epicondylitis (LE).

Design: Prospective, Randomized, Sham-Controlled Trial.

Settings: Outpatient clinic.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!