PDF(Pubmed)
Abstract：
Edible films are thin films frequently manufactured using natural bioresources and are employed in food packaging to safeguard food quality. This research prepared edible films from renewable biomass consisting of Belitung taro tuber starch (Xanthosoma sagittifolium) and incorporated sorbitol as a plasticizer, carboxymethyl cellulose as a reinforcing agent, and moringa leaf extract (Moringa oleifera) as an antioxidant. The physicochemical characteristics of the resulting edible films were examined. The most favorable treatment was identified in an edible film containing 3% (v/v based on the total volume of 100 mL) of moringa leaf extract. This exhibited a tensile strength of 6.86 N/mm2, percent elongation of 73.71%, elasticity of 9.37×10-3 kgf/mm2, water absorption of 349.03%, solubility of 93.18%, and water vapor transmission speed of 3.18 g/h m2. Its shelf life was five days at ambient temperature. The edible film was found to have 135.074 ppm of half maximal inhibitory concentration (IC50) based on the antioxidant analysis of inhibition concentration (IC50) value measurements, and was classified as having moderate antioxidant activity. Additionally, the biodegradability assessment revealed that the edible films degraded within 14 days. Based on this data, it can be deduced that adding moringa leaf extract enhances the physicochemical and functional characteristics of the film. These edible films can be used as substitutes for nonrenewable and nonbiodegradable packaging materials.
摘要：
可食用膜是经常使用天然生物资源制造的薄膜,并且用于食品包装中以保护食品质量。本研究从由Belitungtaro块茎淀粉（Xanthosomasaggifolium）组成的可再生生物质中制备了可食用膜，并掺入了山梨糖醇作为增塑剂，羧甲基纤维素作为增强剂，和辣木叶提取物（辣木）作为抗氧化剂。检查所得可食用膜的物理化学特性。在含有3%(v/v,基于100mL的总体积)辣木叶提取物的可食用膜中鉴定出最有利的处理。这表现出6.86N/mm2的抗拉强度，73.71%的伸长率，弹性为9.37×10-3kgf/mm2，吸水率为349.03%，溶解度为93.18%,水蒸气透过速度为3.18g/hm2。其在环境温度下的保质期为5天。基于抑制浓度（IC50）值测量的抗氧化剂分析，发现可食用膜具有135.074ppm的半最大抑制浓度（IC50）。被归类为具有中等抗氧化活性。此外,生物降解性评估表明，可食用膜在14天内降解。根据这些数据,可以推断,添加辣木叶提取物增强了薄膜的理化特性和功能特性。这些可食用膜可用作不可再生和不可生物降解的包装材料的替代品。
