新型基于可溶性大豆多糖和海泡石纳米粘土的生物纳米复合材料的制备与表征。
Preparation and characterization of novel bionanocomposite based on soluble soybean polysaccharide and halloysite nanoclay.
机构信息
Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran.
Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran.
出版信息
Carbohydr Polym. 2015 Dec 10;134:745-51. doi: 10.1016/j.carbpol.2015.08.059. Epub 2015 Aug 22.
In this research, casting method was used to prepare novel polysaccharide-based bio-nanocomposite films with halloysite nanoclay (HNC). HNC was incorporated into soluble soybean polysaccharide (SSPS) at different concentrations (e.g., 1, 3, and 5%, w/w). Functional properties of SSPS films were evaluated following by ASTM standards. Incorporating HNC to SSPS matrix decreased water vapor permeability from 7.41 × 10(-11) to 3.27 × 10(-11) (gm(-1) s(-1) Pa(-1)) and oxygen permeability from 202 to 84 cm(3)(μm m(-2) day(-1) atm(-1)). By addition of HNC to SSPS films, glass transition temperature, tensile strength, and heat seal strength was increased and elongation at break was decreased. Uniform and smooth surface morphology revealed by scanning electron microscopy and shows no sign of phase separation among the film constitutes. In summary, HNC has the potential to be a filler in SSPS-based films for use in food and non-food packaging industries.
在这项研究中，采用铸造法制备了新型多糖基生物纳米复合材料薄膜，其中包含了埃洛石纳米粘土（HNC）。将 HNC 以不同浓度（例如 1%、3%和 5%，w/w）掺入可溶性大豆多糖（SSPS）中。根据 ASTM 标准评估 SSPS 薄膜的功能特性。将 HNC 掺入 SSPS 基体中，水蒸气透过率从 7.41×10(-11)降至 3.27×10(-11)（gm(-1) s(-1) Pa(-1)），氧气透过率从 202 降至 84 cm(3)(μm m(-2) day(-1) atm(-1))。向 SSPS 薄膜中添加 HNC 可以提高玻璃化转变温度、拉伸强度和热封强度，同时降低断裂伸长率。扫描电子显微镜显示，薄膜表面均匀光滑，无各相分离的迹象。总之，HNC 有可能成为 SSPS 基薄膜中的填充剂，用于食品和非食品包装行业。
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