含坚果副产品提取物的改性淀粉膜的物理、阻隔、机械及生物降解性能

Physical, Barrier, Mechanical, and Biodegradability Properties of Modified Starch Films with Nut By-Products Extracts.

作者信息

Leon-Bejarano Marcos, Durmus Yusuf, Ovando-Martínez Maribel, Simsek Senay

机构信息

Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, entre Reforma y Sahuaripa, Edificio 7G, Col. Centro. C.P., Hermosillo 83000, Sonora, Mexico.

Department of Food Engineering, Faculty of Agriculture, Ordu University, 52200 Ordu, Turkey.

出版信息

Foods. 2020 Feb 20;9(2):226. doi: 10.3390/foods9020226.

Starch-based films with phenolic extracts could replace the use of petroleum-based plastics. In this study, octenyl succinate starch (OSS) films with pecan nutshell extract (PSE) or hazelnut skin extract (HSE) were prepared. The water resistance, as well as the optical, physical, mechanical, and biodegradable properties of these films, were investigated. The PSE and HSE improved the water resistance (decreasing the solubility to 17% and increasing the contact angle to 96.80°) and UV-light barrier properties of the films. For PSE and HSE, as their concentrations increased, the film rigidity decreased since these extracts acted as plasticizers. Micrographs obtained by scanning electron microscopy (SEM) depicted a homogeneous surface as a result of extracts dispersion through the polymeric matrix and the interactions between the phenolic compounds (PC) of the extracts and the OSS. The phenolic extracts from nut by-products and octenyl succinic anhydride (OSA) starch could be used to develop films to replace the conventional plastics.

含有酚类提取物的淀粉基薄膜可以替代石油基塑料的使用。在本研究中，制备了含有山核桃壳提取物（PSE）或榛子皮提取物（HSE）的辛烯基琥珀酸淀粉（OSS）薄膜。研究了这些薄膜的耐水性以及光学、物理、机械和生物降解性能。PSE和HSE提高了薄膜的耐水性（将溶解度降低至17%，并将接触角增加至96.80°）和紫外线阻隔性能。对于PSE和HSE，随着其浓度增加，薄膜刚性降低，因为这些提取物起到了增塑剂的作用。通过扫描电子显微镜（SEM）获得的显微照片显示，由于提取物通过聚合物基质分散以及提取物中的酚类化合物（PC）与OSS之间的相互作用，表面呈现均匀状态。坚果副产品中的酚类提取物和辛烯基琥珀酸酐（OSA）淀粉可用于开发薄膜以替代传统塑料。