Effect of bacterial cellulose nanofibers incorporation on acid-induced casein gels: microstructures and rheological properties
- 16 December 2021
- journal article
- research article
- Published by Walter de Gruyter GmbH in International Journal of Food Engineering
- Vol. 18 (1), 41-51
- https://doi.org/10.1515/ijfe-2021-0293
Abstract
In this study, the effect of bacterial cellulose nanofibers (BCNF) incorporation on the structural and rheological properties of casein gels was investigated, where the mixed BCNF and casein gels were prepared by adding gluconic acid δ-lactone (GDL) to acidify the mixed polymer solutions at 3.0% casein concentration (w/v) and varying BCNF concentrations (0–0.5%, w/v). By changing the addition amount of GDL, the mechanical and structural properties of the mixed gels were studied at above, near and below the electric point (pI) of the casein. At pH above the pI of the casein, the introduction of BCNF initially increased the gel strength, but further addition of BCNF weakened the mixed gels. At near and below the pI of the casein, the incorporation of BCNF continuously increased the gel strength. Besides, all gels showed good structural homogeneity, without macroscopic phase separation occurring, which indicated good compatibility of BCNF with the casein gels.Keywords
Funding Information
- China Agriculture Research System (CARS-27)
This publication has 33 references indexed in Scilit:
- Nano-bacterial cellulose/soy protein isolate complex gel as fat substitutes in ice cream modelCarbohydrate Polymers, 2018
- Enhanced anti-obesity effects of bacterial cellulose combined with konjac glucomannan in high-fat diet-fed C57BL/6J miceFood & Function, 2018
- Bacterial Cellulose Relieves Diphenoxylate-Induced Constipation in RatsJournal of Agricultural and Food Chemistry, 2018
- Enhanced mechanical properties and gelling ability of gelatin hydrogels reinforced with chitin whiskersFood Hydrocolloids, 2018
- Mechanical reinforcement of gelatin hydrogel with nanofiber cellulose as a function of percolation concentrationInternational Journal of Biological Macromolecules, 2017
- Physical properties of bacterial cellulose aqueous suspensions treated by high pressure homogenizerFood Hydrocolloids, 2015
- Production of bacterial cellulose by Gluconacetobacter hansenii CGMCC 3917 using only waste beer yeast as nutrient sourceBioresource Technology, 2014
- Colloidal Stability of Aqueous Nanofibrillated Cellulose DispersionsLangmuir, 2011
- Structure formation in casein-based gels, foams, and emulsionsColloids and Surfaces A: Physicochemical and Engineering Aspects, 2006
- Properties of acid casein gels made by acidification with glucono-δ-lactone. 2. Syneresis, permeability and microstructural propertiesInternational Dairy Journal, 1997