纳米壳聚糖复合涂膜对杏鲍菇保鲜效果的影响

Effect of Chitosan Nanoparticles Composite Coating on Preservation of Pleurotus eryngii

用新鲜杏鲍菇为原料,在4℃条件下,以蒸馏水浸泡杏鲍菇为对照,研究3种不同浓度的纳米壳聚糖复合液对杏鲍菇品质的影响。结果表明,与对照组相比,不同浓度纳米壳聚糖复合液均在不同程度上降低杏鲍菇的失重率,抑制杏鲍菇的呼吸强度和多酚氧化酶(polyphenol oxidase,PPO)活性,减小细胞膜透性的增加,延缓可溶性固形物和V_C的降解,其中0.3%纳米壳聚糖复合液保鲜效果最好。

Pleurotus eryngii was used as raw material.The effects of three different concentrate chitosan nanoparticles compositeonpleurotuseryngii during at 4℃were investigated.The samples dipped in distilled water were used as the control.The results showed that compared with the control different concentrate chitosan nanoparticles could decline weight loss rate,inhibit respiratory intensity and activity of polyphenol oxidase,reduce cell membrane permeability,and delay the reduction of soluble solids and VC.The effect of 0.3%chitosan nanoparticles composite onpleurotuseryngii was the best.