No abstract

In the current study, film based on semi-refined ι-carrageenan/cassava starch (SRiC/CS) incorporated with SiO2-ZnO nanoparticles was fabricated and characterized to deal with serious environmental problems resulting from plastic packaging materials. This study aimed to evaluate film properties with the variation of SRiC/CS proportions of bionanocomposite films for application to minced chicken meat packaging. Increasing CS portion contributed to increased transparency, reduced surface roughness, and decreased mechanical properties of films. The variable significantly (p < 0.05) increased the water vapor permeability (WVP) and reduced the water solubility of films. The incorporation of the nanoparticles significantly (p < 0.05) increased UV screening, decreased WVP, and enhanced the antimicrobial activity of films. Furthermore, the substitution of 0.5 wt% (weight percentage) CS provided the best film characteristics. Based on the color and the total volatile base nitrogen (TVBN) results, SRiC film incorporated with the nanoparticles preserved minced chicken quality up to six days. Thus, the developed films are desirable for biodegradable food packaging.

Poor dietary patterns and unhealthy lifestyles are common risk factors for noncommunicable ailments, the leading causes of global death rates. Therefore, improvement of diet quality is necessary and a gluten-free diet would be the right option. This diet is not solely for patients with gluten-related diseases but has also become a trend for consumers, due to the health benefits of gluten avoidance. Underutilized food crops, including tubers and legumes, are potential raw materials for producing gluten-free food. In this study, the physicochemical properties of canna (Canna edulis) and jack bean (Canavalia ensiformis) -based composite flours were investigated. The composite flours were produced using canna flour to jack bean flour ratios of F1 (85:15), F2 (70:30), and F3 (55:45). Based on the experiment’s result, an increase in jack bean flour proportion significantly (p<0.05) increased the composite flour’s protein content, lightness, and resistant starch content of composite flours, but significantly (p<0.05) reduced carbohydrate content, oil holding capacity, and swelling power. According to the scoring test result, F2 (70:30) has the highest result and was selected as the best formula. Thus, a combination of canna and jack bean flours indicated promising properties of gluten-free flour for functional food alternative resources.