Department of Food Science and Technology, Pondicherry University, Puducherry 605014, India.
Department of Food Science and Technology, Pondicherry University, Puducherry 605014, India.
Food Chem. 2023 Jan 1;398:133881. doi: 10.1016/j.foodchem.2022.133881. Epub 2022 Aug 9.
The effect of energetic neutral argon (EAr) atoms on the short and long-term retrogradation was studied, and the retrograded starch was used to prepare bioplastic films for better mechanical and barrier properties. Kithul starch showed higher short and long-term retrogradation after treatment. The EAr atoms treatment increased amylose content and amylose leaching; it facilitated the short-term retrogradation. The more pronounced effect of long-term retrogradation in starch after treatment increased the enthalpy of retrogradation (ΔH), hardness, and syneresis and decreased the light transmittance and freeze-thaw stability. Bioplastic films made from retrograded starch after EAr atoms treatment exhibited significantly (p ≤ 0.05) higher relative crystallinity; it could be attributed to the higher starch retrogradation after cold plasma treatment. The films of retrograded EAr atoms treated starch showed higher mechanical strength and barrier properties. These results revealed that bioplastic films from retrograded EAr atoms treated starch could potentially substitute the single-use petroleum-based packaging films.
研究了高能中性氩（EAr）原子对短期和长期回生的影响，并使用回生淀粉来制备具有更好机械和阻隔性能的生物塑料薄膜。处理后的翅果淀粉表现出更高的短期和长期回生。EAr 原子处理增加了直链淀粉含量和直链淀粉浸出，促进了短期回生。处理后淀粉的长期回生更明显，增加了回生焓（ΔH）、硬度和离浆，降低了透光率和冻融稳定性。经 EAr 原子处理后的回生淀粉制成的生物塑料薄膜具有显著更高的相对结晶度（p≤0.05）；这可能归因于冷等离子体处理后淀粉的回生率更高。经 EAr 原子处理后的回生淀粉的薄膜具有更高的机械强度和阻隔性能。这些结果表明，由经 EAr 原子处理后的回生淀粉制成的生物塑料薄膜可能有潜力替代一次性石油基包装薄膜。
