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The aim of this work is to study the effect of eggshell powder (ESP) on the properties of corn starch (CS) films. It was found that the addition of ESP significantly improved the tensile strength, elongation at break, water vapor and oxygen barrier properties compared to the control film. There was an inductive effect between the C–C bonds on cornstarch skeleton and the O–C–O bond on CaCO3 in the ESP and the number of hydrogen bands increased between starch molecules and ESP particles, which indicated a strong interaction and biocompatibility between the two components. In addition, the organic compounds on the surface of ESP increased the adhesion between CaCO3 particles and CS films matrix. In summary, the ESP, as an enhancement factor, is a good candidate for the development of green food packaging material.

Effects of inulin with short and long-chain on pasting, texture and rheological properties of sweet potato starch (SPS) were investigated. Subsequently, the interaction mechanism between inulin and SPS was discussed. Both short and long-chain inulin could decrease all the viscosity parameters and raise the pasting temperature (GT) of SPS-inulin mixes. With the increase of inulin addition, the hardness and gumminess of SPS gel decreased, while tan δ and temperature of G’ Max rose. Inulin could inhibit SPS granule swelling, and made SPS granules concentrate in the smaller ones. Inulin also remarkably lowered the content of leached amylose (p

This study was to investigate the antioxidant activity of Komagataeibacter hansenii CGMCC 3917 in vivo and in vitro. In vitro study suggested that CGMCC 3917 exhibited strong scavenging abilities against DPPH, ABTS, OH free radicals and reducing power, suggesting significant anti-oxidant ability. In vivo supplementation of mice with CGMCC 3917 bacteria suspension at a dose of 10 mL/kg (108 or 106 CFUs/mL) dramatically decreased the elevated serum activities of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) induced by alcohol treatment in mice (p< 0.01), and also significantly decreased the elevated levels of alkaline phosphatase (ALP) and hepatic malondialdehyde (MDA) induced by alcohol treatment in mice (p< 0.01). Furthermore, CGMCC 3917 supplement showed the preventive effects against the alcohol-induced elevation in serum triglycerides (TG) and low-density lipoprotein cholesterol (LDL-C), and the decrease in high-density lipoprotein cholesterol (HDL-C), as well as the decreased activities of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) in mice. Additionally, supplementation with CGMCC 3917 displayed significant anti-inflammatory effects by lowering hepatic production of TNF-α, IL-1, and IL-6 in alcohol-treated mice. All these findings suggest that K. hansenii CGMCC 3917 may be a great potential nutritional resource against chronic alcohol-induced liver oxidative injury in mice.