Aman Junaid, Shahi Navin Chandra, Lohani Umesh Chandra, Balodhi Divya, Singh Rajat, Kumar Naveen, Bhat Mohd Ishfaq, Kumar Avvaru Praveen
School of Applied and Life Sciences, Uttaranchal University, Dehradun 248007, India.
G.B. Pant University of Agriculture and Technology, Pant Nagar (US-Nagar) 263145, Uttarakhand, India.
Bioinorg Chem Appl. 2022 Aug 16;2022:9180000. doi: 10.1155/2022/9180000. eCollection 2022.
In the current study, a guar-gum-based biodegradable hydrogel film was prepared using an initiator (potassium persulfate), crosslinker (N-N methyl bis acrylamide), and plasticizer (glycerol) for packaging of fruits and vegetables. The effect of independent variables (initiator, crosslinker, and plasticizer) on the biodegradation (% wt. loss), color difference (ΔE), hardness (N), swelling index (%), and transparency (%) of the film was studied using Box-Behnken design, random surface methodology (RSM). The results showed significant effects on all the abovementioned parameters, and it was observed that the developed model was accurate, with a prediction error of only -3.19 to 2.99%. The optimized formulation for the preparation of hydrogel film was 0.15% initiator, 0.02% crosslinker, and 2.88% plasticizer exhibiting satisfactory biodegradability, color difference, hardness, swelling index, and transparency. Results showed that a guar-gum-based biodegradable hydrogel film has adequate physical, optical, and biodegradable properties and can be successfully utilized in the food packaging industry.
在当前研究中，使用引发剂（过硫酸钾）、交联剂（N-N-甲基双丙烯酰胺）和增塑剂（甘油）制备了一种基于瓜尔胶的可生物降解水凝胶薄膜，用于水果和蔬菜的包装。采用Box-Behnken设计、随机表面方法（RSM）研究了自变量（引发剂、交联剂和增塑剂）对薄膜生物降解率（重量损失百分比）、色差（ΔE）、硬度（N）、溶胀指数（%）和透明度（%）的影响。结果表明，对上述所有参数均有显著影响，并且观察到所建立的模型准确，预测误差仅为-3.19%至2.99%。制备水凝胶薄膜的优化配方为0.15%引发剂、0.02%交联剂和2.88%增塑剂，其具有令人满意的生物降解性、色差、硬度、溶胀指数和透明度。结果表明，基于瓜尔胶的可生物降解水凝胶薄膜具有足够的物理、光学和生物降解性能，可成功应用于食品包装行业。
