Almond protein as Pickering emulsion stabilizer: Impact of microgel fabrication method and pH on emulsion stability.

We evaluated the ability of almond proteins to produce Pickering emulsions (EM) stabilized by microgels (MG) fabricated by three different methods (heat treatment-HT, crosslinking with transglutaminase-TG or calcium-CA), at two pH levels (pH 3 or 7). Compared to pH 7, acidic pH significantly denatured almond proteins (ellipticity ∼0 mdeg), decreased absolute zeta potential values (10.5 to 18.

Starch can act differently when combined with alginate or gellan gum to form hydrogels.

Microgels were tailored by combining starches from different sources (corn, potato or phosphated) and anionic polysaccharides (gellan gum or alginate) using ionic gelation. Rheological analysis pointed out a lower consistency index for alginate-based solutions compared to the gellan-based ones and, therefore, this favored the formation of smaller droplets during the atomization process (58.74 ± 1.

Model infant formulas: Influence of types of whey proteins and lipid composition on the in vitro static digestion behavior.

This work aimed at evaluating the influence of types of whey proteins (lactoferrin, whey protein isolate and/or whey protein hydrolysates) and lipid composition (high oleic sunflower oil, coconut oil and/or medium chain triacylglycerols) on the behavior of model infant formulas (IFs) under simulated conditions of the infant gastrointestinal tract using an in vitro static digestion model. The physicochemical conditions of the gastric medium resulted in the aggregation of oil the droplets and partial hydrolysis of the proteins, considering whey proteins were resistant to the gastric conditions. However, after intestinal digestion the proteins from all the IFs were extensively hydrolyzed.

Stability and viability of synbiotic microgels incorporated into liquid, Greek and frozen yogurts.

The viability of Lactobacillus acidophilus when co-encapsulated with fructooligosaccharides in alginate-gelatin microgels, for incorporation into liquid, Greek, and frozen yogurts, during storage and in vitro-simulated digestion was studied. Liquid yogurt provided the highest viability for the encapsulated probiotics during storage, followed by frozen and Greek formulations when compared to free probiotics, highlighting the influence of microencapsulation, yogurt composition, and storage conditions. Addition of up to 20% of probiotic (AG) and symbiotic (AGF) microgels did not cause significant changes in the liquid and frozen yogurts' apparent viscosity (η ); however, it decreased η for the Greek yogurt, indicating that microgels can alter product acceptability in this case.

Modulating porosity and mechanical properties of pectin hydrogels by starch addition.

The use of blends to produce hydrogels allows modulating their characteristics as mechanical properties and microstructure. This work aimed to study the properties of pectin and starch hydrogel blends. Pectin gel was homogeneous and porous, while pectin/starch blends containing 50% or more pectin exhibited denser and closer network, indicating that starch reduced the porosity of pectin network.

Alginate and corn starch mixed gels: Effect of gelatinization and amylose content on the properties and in vitro digestibility.

The aim of this work was to evaluate the effects of gelatinized and non-gelatinized corn starches with different amounts of amylose (6.62, 28.46, and 61.

Structure of gellan gum-hydrolyzed collagen particles: Effect of starch addition and coating layer.

In this work, we developed biopolymeric structures, based on electrostatic attraction, through dripping gellan gum into hydrolyzed collagen (HC), to deliver hydrophilic compounds. Moreover, we evaluated the influence of starch addition on the polymeric network as well as the coating effects promoted by an outer gellan layer. The lowest tested gellan gum concentration in the core (0.