Two hydrolysis methods used to obtain rapeseed isolate derivates were compared: chemical hydrolysis performed under alkaline conditions and pepsic proteolysis performed under acidic conditions. The mean molecular weights obtained for the hydrolysates varied from 26 to 2.5 kDa, depending on the level of hydrolysis. Further characterisation showed that, at the same level of hydrolysis, the chemical hydrolysates differed by their charges and hydrophobicity from those derived from enzymatic digestion. Analysis of the foaming properties showed, for both cases, that a limited degree of hydrolysis, around 3%, was sufficient to optimise the foaming properties of the isolate despite the different physicochemical properties of the peptides generated. The study of foaming properties at basic, neutral and acidic pHs showed that the hydrolysate solutions yielded dense foams which drained slowly and which maintained a very stable volume under the three pH conditions tested.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.colsurfb.2006.02.009 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A cellulosic fibre foam as a bicycle helmet impact liner for brain injury mitigation in oblique impacts.
Heliyon
January 2025
Chalmers University of Technology, Department of Chemistry and Chemical Engineering, Kemivägen 10, 41296 Gothenburg.
Bulky cellulosic network structures (BRC) with densities between 60 and 130 g/l were investigated as a sustainable alternative to fossil-based foams for impact liners in bicycle helmets. The mechanical properties of BRC foams were characterized across a wide range of strain rates and incorporated into a validated finite element model of a hardshell helmet. Virtual impact tests simulating both consumer information and certification scenarios were conducted to compare BRC-lined helmets against conventional expanded polystyrene (EPS) designs.
View Article and Find Full Text PDFEffect of ultrasound synergistic pH shift modification treatment on Hericium erinaceus protein structure and its application in 3D printing.
Int J Biol Macromol
January 2025
School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China; Xi' an Key Laboratory of Precision Nutrition and Functional Product Innovation, Shaanxi University of Science and Technology, Xi'an 710021, China. Electronic address:
This study investigates the effects of ultrasound synergistic pH shift modification on the structural and functional properties of Hericium erinaceus (HE) proteins. The modification resulted in significant changes in the molecular structure of HE proteins, including increased solubility (49.69 % at pH 1.
View Article and Find Full Text PDFEffect of fibrillation on the film-forming properties of soy protein isolate: Relationship between protein structural changes and the film-forming properties.
Food Chem
December 2024
College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Chongqing Research Institute, Harbin Institute of Technology, Chongqing 401135, China. Electronic address:
Protein fibrillation has great potential for enhancing the emulsification, foaming, and gelling properties of proteins. However, its effects on protein film-forming properties are less well understood. In this study, soy protein isolate (SPI) was subjected to fibrillation at pH 2.
View Article and Find Full Text PDFNutritional and technological potential of umbu-caja and soursop co-product flours.
Food Res Int
January 2025
Department of Nutrition and Health, Federal University of Viçosa, Viçosa, MG, Brazil. Electronic address:
Umbu-caja and soursop from the Northeast region of Brazil are rich in nutrients and bioactive compounds and are widely processed by the fruit agroindustry. However, there is a lack of research examining the composition and nutritional/technological potential of these co-product fruits. The present study evaluated the nutritional and technological characteristics of umbu-caja and soursop co-product flours (UCF and SCF, respectively), in addition to cytotoxicity in healthy cells.
View Article and Find Full Text PDFCellulose nanofiber-created air barrier enabling closed-cell foams prepared via oven-drying.
Carbohydr Polym
March 2025
Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, PR China. Electronic address:
Cellulose foams are renewable and biodegradable materials that are promising substitutes for plastic foams. However, the scale-up fabrication of cellulose foams is severely hindered by technological complexity and cost- and time-consuming drying processes. Here, we developed a facile and robust method to fabricate cellulose foams via oven-drying following surfactant-assisted mechanical foaming of cellulose nanofibers (CNFs).
View Article and Find Full Text PDFWant 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!