从仙人果 mucilage 制备可食性塑料薄膜：不同多元醇增塑剂的比较研究。
Development of plasticized edible films from Opuntia ficus-indica mucilage: A comparative study of various polyol plasticizers.
机构信息
Laboratoire des Substances Naturelles (LSN, LR10 INRAP02), Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Pôle Technologique de Sidi Thabet, 2020 Sidi Thabet, Tunisia.
Department of Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg.
出版信息
Carbohydr Polym. 2018 Jun 15;190:204-211. doi: 10.1016/j.carbpol.2018.02.085. Epub 2018 Feb 27.
Mucilage polysaccharide was extracted from Opuntia ficus-indica cladodes (Cactaceae) and its composition was determined by sugar analysis using HPLC-RID and its structural features were elucidated by FTIR and H and C NMR. Films from the extracted mucilage were loaded at 40% (w/w) with glycerol, sorbitol, PEG 200 or PEG 400. The physical, thermal, mechanical and barrier properties of the obtained films were investigated. The highest water vapor barrier properties of plasticized mucilage films were obtained with sorbitol reaching water vapor permeability (WVP) values up to 3 times lower than the other films. The tensile strength (TS) values of films plasticized with PEG 200 and sorbitol were about 2 times higher than those of glycerol-plasticized films. The significant effect of polyol type plasticizers on the different properties of mucilage edible films was related to their structural features that promote different interactions with mucilage polysaccharides as demonstrated by FTIR and thermal properties.
从仙人掌属植物的肉质茎（仙人掌科）中提取了黏胶多糖，并通过 HPLC-RID 进行糖分析来确定其组成，通过 FTIR 和 H 和 C NMR 阐明其结构特征。从提取的黏胶中提取的薄膜以 40％（w / w）的甘油、山梨糖醇、PEG 200 或 PEG 400 负载。研究了所得薄膜的物理、热、机械和阻隔性能。用山梨糖醇对黏胶进行增塑得到的塑料薄膜具有最高的水蒸气阻隔性能，水蒸气透过率（WVP）值比其他薄膜低 3 倍。用 PEG 200 和山梨糖醇增塑的薄膜的拉伸强度（TS）值比用甘油增塑的薄膜高约 2 倍。多元醇型增塑剂对黏胶可食用薄膜不同性质的显著影响与它们的结构特征有关，这些特征如 FTIR 和热性质所示，促进了与黏胶多糖的不同相互作用。
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