WANG Jingfa,SUN Zhiqiang,YANG Bin,et al.Effect of Chitosan Enriched With Essential Oil Components on Yali Pear (Pyrus bretschneideri) Fruit During Storage[J].Northern Horticulture,2015,39(17):120-124.[doi:10.11937/bfyy.201517031]
壳聚糖复合精油组分在鸭梨保鲜中的应用
- Title:
- Effect of Chitosan Enriched With Essential Oil Components on Yali Pear (Pyrus bretschneideri) Fruit During Storage
- Keywords:
- essential oil components; chitosan; composite coatings; fruits; pathogens
- 文献标志码:
- A
- 摘要:
- 以6种精油 (EOs)组分为试材，并添加至壳聚糖中，通过体外试验测定了其对鸭梨 (Pyrus bretschneideri) 采后致病真菌的最小抑菌浓度，从中选择百里酚、柠檬醛、香叶醇添加到壳聚糖中测定其对鸭梨保鲜质量的影响，并研究其协同抗菌能力和复合后添加到壳聚糖对于鸭梨接种青霉 (Penicillium expansum)发病情况的影响。结果表明：所选精油组分对4种鸭梨采后致腐真菌均具不同程度的抑制能力，百里酚、香叶醇、柠檬醛具有较强的抑菌能力且它们之间存在协同抑菌作用，复配剂添加到壳聚糖中可以显著改善鸭梨储藏中的抗病能力，3种精油组分添加到壳聚糖中不会降低壳聚糖对鸭梨保鲜硬度、失重和可溶性固形物(SSC)的积极作用，精油组分具有改善壳聚糖作为可食用保鲜膜抗菌性不足的潜在应用价值。
- Abstract:
- Taking 6 essential oil components as material，pathogens isolated from infected Yali pear (Pyrus bretschneideri) fruit were treated with them in vitro and minimum inhibitory concentrations of the components to the pathogens were determined，3 components were selected and synergistic effect among them was studied then were added in chitosan and used in Yali pear fruit storage.The results showed that all the pathogens selected could be inhibited by the selected essential oil components，thymol，geraniol and citral had very strong ability of inhibiting pathogens and synergistic effect could be found among them.The results also showed that when the 3 components were added in chitosan and used in Yali pear fruit storage，positive effect of chitosan coating on the weight loss，firmness and total soluble solids (TSS) in Yali pear fruit during storage should not be decreased and inhibiting ability of chitosan coating to Penicillium expansum in Yali pear fruit could be improved by enriched with combination of them.Essential oil components had very important value in improving antimicrobial activity of edible coating.
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备注/Memo
第一作者简介：王京法(1975-)，男，博士，讲师，研究方向为食材开发与保鲜及餐饮战略管理。E-mail：daomisao@sohu.com.基金项目：昆明学院引进人才科研资助项目（YJL12006）。