Ju Ahreum, Baek Su-Kyoung, Kim Sujin, Song Kyung Bin
Department of Food Science and Technology, Chungnam National University, Daejeon, 34134 Republic of Korea.
Food Sci Biotechnol. 2019 Jan 2;28(4):1057-1063. doi: 10.1007/s10068-018-00546-9. eCollection 2019 Aug.
The aim of this study was to develop and characterize the properties of khorasan wheat starch (KWS) films containing moringa leaf extract (MLE) as an antioxidative packaging material. KWS was isolated from khorasan wheat and used as a film base material. Different amounts (0, 0.4, 0.7, and 1.0%, w/v) of MLE were added to the KWS film-forming solution and the film properties were examined. Tensile strength of the KWS films decreased and elongation at break increased with increasing MLE content. In addition, the KWS films containing MLE possessed good antioxidative activities and ultraviolet light blocking ability. In particular, 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) and 2,2-diphenyl-1-picrylhydrazyl radical scavenging abilities of the KWS films with 1.0% MLE were 59.45% and 37.89%, respectively. Moreover, KWS films containing 1.0% MLE were biodegradable within 30 days. These findings indicate that the developed KWS films containing MLE can be applied as a biodegradable packaging material with antioxidative activity.
本研究的目的是开发并表征含有辣木叶提取物（MLE）的霍拉桑小麦淀粉（KWS）薄膜作为抗氧化包装材料的性能。KWS是从霍拉桑小麦中分离出来的，并用作薄膜基材。将不同量（0、0.4、0.7和1.0%，w/v）的MLE添加到KWS成膜溶液中，并对薄膜性能进行了检测。随着MLE含量的增加，KWS薄膜的拉伸强度降低，断裂伸长率增加。此外，含有MLE的KWS薄膜具有良好的抗氧化活性和紫外线阻隔能力。特别是，含有1.0% MLE的KWS薄膜对2,2'-联氮双（3-乙基苯并噻唑啉-6-磺酸）和2,2-二苯基-1-苦基肼自由基的清除能力分别为59.45%和37.89%。此外，含有1.0% MLE的KWS薄膜在30天内可生物降解。这些发现表明，所开发的含有MLE的KWS薄膜可作为具有抗氧化活性的可生物降解包装材料应用。
