Impacts of Hydrocolloids on Physical,Microbiological and Sensorial Qualities of Swai-Fish-Based Emulsions Subjected to High Pressure Processing

The objective of this study was to examine how konjac flour or carboxymethylcellulose (CMC) could improve the physical, microbiological, and sensorial qualities of pressurized Swai fish-based emulsions. The properties of the pressurized batches were also compared with those of the heated emulsions. Accordingly, Swai fish-based emulsions containing mixed fermented-soybeans were stabilized by either konjac flour or CMC, 0.1–0.3%. The fish batters were then subjected to pressurization (600 MPa/25°C/20 min) or thermal treatment (72°C/30 min). The results showed that both hydrocolloids enabled improvement of the color of fish emulsions. Regarding the impact of hydrocolloids on other properties, CMC addition enhanced water holding capacity, gel strength, and elasticity more than konjac flour addition. Regarding processing effects, pressurization gave rise to products with greater water holding capacity and higher sensorial scores than the thermal treatments. However, thermal treatments increased the gel strength and elasticity of the products more than pressurization. Overall, both processes could equally inhibit bacterial cells and some spores of B. subtilis.     

Quality improvement of rice-based gluten-free bread using different dietary fibre fractions of rice bran

Gluten-free (GF) breads are often characterised by low nutritional quality as they are mainly starch based and contain low amounts of vitamins, minerals and in particular dietary fibre. The objective of this study was to improve the physical, nutritional and sensory quality and shelf life of rice-based GF bread by adding different fractions of rice bran, containing different amounts of protein, fat, dietary fibre (DF) and different ratios of insoluble (IDF) to soluble (SDF) DF.