Healthy Processed Foods Research, U.S. Department of Agriculture, Albany, CA, United States.
Bioproducts Research Unit, U.S. Department of Agriculture, Albany, CA, United States.
Carbohydr Polym. 2017 Jul 1;167:97-104. doi: 10.1016/j.carbpol.2017.03.010. Epub 2017 Mar 6.
Brown mushroom (Agaricus bisporus) stalk bases from mushroom waste were treated with UV-B light to rapidly increase vitamin D content. Chitin was also recovered from this waste and converted into chitosan by N-deacetylation. FTIR spectra showed that the mushroom chitosan were similar to chitosan from animal sources. Chitosan films were prepared using high molecular weight (HW), low molecular weight (LW) and fungal chitosan. UV-B treated mushroom particles were also incorporated into fungal chitosan films. The fungal chitosan films showed similar density, porosity and water vapor barrier properties to the LW and HW chitosan films. However, fungal chitosan films were more hydrophobic and less flexible than the LW and HW chitosan films. Addition of mushroom particles did not significantly affect mechanical or water barrier properties of the fungal chitosan films.
褐蘑菇（双孢蘑菇）菌柄基部废料经 UV-B 光处理可快速提高维生素 D 含量。该废料还可回收甲壳素，并通过 N-去乙酰化转化为壳聚糖。傅里叶变换红外光谱表明，蘑菇壳聚糖与动物源壳聚糖相似。壳聚糖薄膜由高分子量（HW）、低分子量（LW）和真菌壳聚糖制备。UV-B 处理过的蘑菇颗粒也被掺入真菌壳聚糖薄膜中。真菌壳聚糖薄膜的密度、孔隙率和水蒸气阻隔性能与 LW 和 HW 壳聚糖薄膜相似。然而，真菌壳聚糖薄膜比 LW 和 HW 壳聚糖薄膜更疏水、更不灵活。添加蘑菇颗粒对真菌壳聚糖薄膜的机械性能和水阻隔性能没有显著影响。
