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超吸收,抗菌和抗氧化纳米纤维素气凝:制备,表征和在牛肉保存中应用
Kejin Yu1, Lina Yang1, Ning Zhang1
1College of Food Science and Engineering, Bohai University. Jinzhou, Liaoning, 121013, China.
Food chemistry
|November 30, 2024
概括
一个新的大豆纳米纤维素气凝片与聚乙醇,乳清蛋白和肉油有效保存牛肉. 这种食品防腐材料通过抑制细菌和氧化,将牛肉的保质期从4天延长到12天.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 生物技术是生物技术.
背景情况:
- 食品腐败是一个主要问题,导致严重的经济损失和安全问题.
- 开发有效和可持续的保存方法对于延长食品的保质期至关重要.
- 基于纳米纤维素的材料为食品包装和保存应用提供了有前途的性能.
研究的目的:
- 开发一种基于气凝的新型防腐,使用大豆纳米纤维素 (SHNC),聚乙醇 (PVA),乳清蛋白分离物 (WPI) 和肉精油 (CEO).
- 为了研究开发的气凝保护的物理化学特性.
- 评估气凝在保存牛肉质量和延长其保质期方面的有效性.
主要方法:
- 使用SHNC,PVA,WPI和CEO制备气凝保护.
- 气凝物理化学性质的表征,包括机械强度和吸收.
- 评估气凝的抗氧化和抗菌活性.
- 在4°C的牛肉保存实验中,评估了保质期延长,细菌生长抑制,脂质氧化和颜色保留.
主要成果:
- 气凝单体被, Ester 键和静电相互作用交叉连接,形成一个 3D 孔隙结构.
- 该SHNC/PVA/WPI/CEO-3气凝表现出优异的机械性能 (延长:251%,拉伸强度:33.97MPa) 和高吸收.
- 气凝显示出显著的抗氧化和抗菌特性 (83.74%的抑制).
- 用气凝保存的牛肉样本显示细菌生长和脂质氧化受阻,保持颜色,在4°C下将保质期从4天延长到12天.
结论:
- 开发的气凝保护具有卓越的机械和吸收性能.
- 气凝表现出强大的抗氧化和抗菌活性,对于食品保存至关重要.
- 这种新的基于气凝的保存有效地延长了牛肉的保质期,通过抑制腐败因素.
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