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不同油脂添加剂对玉米粉草耐水性的影响

Jinyu Zhang¹, Xueting Li¹, Kun Wang¹

¹State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.

Carbohydrate polymers

|March 29, 2024

概括

添加各种油添加剂显著改善了玉米粉吸管的抗水性和屈曲强度. 玉米油 (CO) 和大豆油 (SO) 在草属性方面显著改善.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
食品科学食品科学食品科学

背景情况:

玉米粉吸管为塑料吸管提供了一个可生物降解的替代品.
提高粉基材料的耐水性对于实际应用至关重要.
油添加剂可能会改变粉复合材料的结构和功能性质.

研究的目的:

评估不同油料添加剂对玉米粉吸管耐水性和机械性能的影响.
为了比较各种食用油 (玉米油,大豆油,菜油,花生油,油脂,油,子油) 作为添加剂的有效性.
了解油脂特性,粉结构和产生的吸管的性能之间的关系.

主要方法:

玉米粉吸管是使用热塑性挤出与各种油添加剂准备的.
通过水吸收,溶性和膨胀测试来评估耐水性.
通过测量屈曲强度来评估机械性能.
结构分析包括里埃变换红外光谱法 (FTIR) 和差分扫描热量计 (DSC).

主要成果:

所有测试的油添加剂都提高了耐水性 (降低了水的吸收,溶性,胀) 并增加了玉米粉吸管的屈曲强度.
豆油 (SO) 的添加导致了最强的键相互作用和放松时间.
玉米油 (CO) 的添加导致了最高的相对晶度和双螺旋的程度,在低水吸收/溶解度和高曲强度方面产生了最佳的整体性能.
油菜油 (RO) 的添加导致了最高的热过渡温度.

结论:

食用油添加剂有效地提高了玉米粉吸管的耐水性和机械强度.
玉米油 (CO) 和大豆油 (SO) 显示出提高粉干性能的巨大潜力.
油添加剂的选择影响了改性粉吸管的微观结构,结合,结晶性,以及最终的功能性质.

关键词:

玉米粉是一种玉米粉.油类油类油类粉吸管粉吸管粉吸管耐水性耐水性耐水性

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