阿斯伯吉卢斯圆体在线纤维素材料上的表面生长
Matilde Anaya Villalpanda1, Erasmo Gámez-Espinosa2, Diana M Bosch-Crespo3
1Development & Management Quality Center (CGDC), Havana, Cuba.
概括
食品包装的真菌生物恶化是一个令人担忧的问题. Aspergillus ellipticus在各种纤维纤维素材料上显示出显著的生长,这表明在热带气候下存在潜在的腐烂风险.
科学领域:
- 食品科学 食品科学 食品科学
- 菌类学 菌类学是指菌类学.
- 材料科学 材料科学 材料科学
背景情况:
- 基纤维素材料在食品包装中很常见.
- 这些材料易受真菌生物降解的影响,影响食品安全和保质期.
- 型菌 (Aspergillus ellipticus) 是一种因其降解纤维素化合物的能力而闻名的真菌.
研究的目的:
- 为了评估Aspergillus ellipticus的表面生长在不同的纤维素蛋白食品包装材料上.
- 为了确定哪些包装材料最容易受到真菌殖民的影响.
- 了解真菌生长对食品包装完整性的影响.
主要方法:
- 选择了Aspergillus ellipticus的一种高细胞解酶生成菌株.
- 从六种纤维纤维素材料 (纸板类型, kraft 纸,蛋糕包装,过纸) 制成的碎片.
- 接种了A. ellipticus子的材料,并在受控条件下 (32°C,87%RH) 化了21天,测量了殖民地直径.
主要成果:
- 所有测试材料的pH值均为中性 (7.2-7.4).
- 菌落的生长在不同材料上有很大的差异,从2毫米到38.6毫米不等.
- 在过纸上观察到的真菌生长率最高,其次是 kraft 纸,波纹纸板,未涂层纸板,涂层纸板和蛋糕包装.
结论:
- 纤维素类食品包装材料易受Aspergillus ellipticus的真菌生物恶化影响.
- 增长速度因材料的特性而异.
- 这些发现表明,在热带气候条件下,食品包装中存在严重的真菌腐烂风险.
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