Food Biopolymer Research Group, Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, 11800, Penang, Malaysia.
Food Biopolymer Research Group, Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Minden, 11800, Penang, Malaysia.
Int J Biol Macromol. 2018 Apr 1;109:855-862. doi: 10.1016/j.ijbiomac.2017.11.051. Epub 2017 Nov 11.
Edible duck feet gelatin (DFG)-based biocomposites with different glycerol (GLY) contents (15%, 25%, and 35% of dried DFG) were prepared. Physicochemical, mechanical, barrier, and heat seal properties of DFG films were characterized and compared as an alternative to bovine gelatin film. Increasing glycerol from 15 to 35% decreased the TS and YM and EB and HS increased, in value of 42.54-7.27 and 1240-157.10MPa and 22.82-50.33% and 42.06-347.15N/m respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of films were increased from 4.78 to 5.6×10gmPas and from 3.97 to 33.99cmmμ/m d kPa respectively. GAB model estimations showed monolayer water content of films increased with the increase of plasticizer content. Moisture sorption isotherm modelling exhibited a type II BET classification. Fourier transform infrared (FTIR) spectra showed shifted peak at approximately 1024cm, which was related to glycerol. The results show that the properties of DFG film are suitable for use as an alternative material to bovine gelatin film.
以食用鸭脚明胶（DFG）为基础，制备了不同甘油（GLY）含量（DFG 干重的 15%、25%和 35%）的生物复合材料。对 DFG 薄膜的物理化学、力学、阻隔和热封性能进行了表征和比较，作为牛明胶薄膜的替代品。甘油含量从 15%增加到 35%，TS 和 YM 降低，EB 和 HS 增加，分别为 42.54-7.27 和 1240-157.10MPa 和 22.82-50.33%和 42.06-347.15N/m。薄膜的水蒸气透过率（WVP）和氧气透过率（OP）分别从 4.78 增加到 5.6×10gmPas 和从 3.97 增加到 33.99cmmμ/m d kPa。GAB 模型估算表明，薄膜的单层水分含量随增塑剂含量的增加而增加。水分吸附等温线模型表现出 II 型 BET 分类。傅里叶变换红外（FTIR）光谱显示在大约 1024cm 处出现了偏移峰，这与甘油有关。结果表明，DFG 薄膜的性能适合用作牛明胶薄膜的替代材料。
