DIAO Xiao-qin,GUAN Hai-ning.Study on Isolation and Identification of Disease and Green Precautionary Methods in Storage of Oil Beans[J].Northern Horticulture,2012,36(24):154-158.
油豆角贮期病害分离鉴定及绿色防治技术研究
- Title:
- Study on Isolation and Identification of Disease and Green Precautionary Methods in Storage of Oil Beans
- 文章编号:
- 1001-0009(2012)24-0154-05
- 分类号:
- S 643.109+.3
- 文献标志码:
- A
- 摘要:
- 以黑龙江省地方主栽的油豆角为试材，对其贮藏期间的病害进行了分离鉴定，研究了臭氧、减压、壳聚糖及1-甲基环丙烯等处理对已分离的病原菌生长的抑制效果。结果表明：油豆角贮期腐烂变质的病原菌是野油菜黄单胞杆菌和菜豆灰霉病菌。菜豆灰霉病菌在中性和弱碱性条件下均能很好的生长，而对强碱和酸性环境具有较高的敏感性。而黄单胞杆菌在中性环境下生长良好，偏酸或偏碱的条件下都会对该菌有抑制作用。壳聚糖对黄单胞杆菌和灰霉菌均有明显的抑制作用，且浓度越高效果越好，但高浓度的壳聚糖涂膜会造成油豆角的无氧呼吸，最终采用2.0%的浓度效果较好；臭氧处理病原菌10 min具有强烈的杀灭性；减压能抑制病原菌的生长，压力越低效果越好，40 kPa压力处理，效果较好；1-甲基环丙烯是良好的保鲜剂，且浓度为40 mg/L时对病原菌的抑制效果最理想。
- Abstract:
- Taking oil beans in Heilongjiang province as material，the disease was isolated and identificated，and the inhibitory effect of O3，pressure，chitosan and 1-MCP on mycelia growth were studied.The results showed that main pathogens were wild rapeseed yellow aeromonas and bean gray mold pathogen.Bean gray mold could grow well in the neutral and alkaline conditions and were highly sensitive to alkali and acidic environment.Yellow aeromonas grew well in a neutral environment，partial acid or alkali conditions would have the inhibition to the bacteria.The inhibitory action of chitosan on yellow aeromonas and gray mold was conspicuous，and the effect was good when chitosan concentration for 2.0%.The effect of sterilization by 10 minutes ozone treatment on the pathogen was obvious.Reduced pressure could inhibit the growth of pathogens，the inhibiting effect was optimal when the pressure dropped to 40 kPa.1-methyl ring propylene was good preservative.The pathogens inhibitoryeffect was optimal when 1-MCP concentration 40 mg/L.
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备注/Memo
第一作者简介：刁小琴（1979-），女，山西怀仁人，硕士，讲师，现主要从事食品营养及农产品加工与贮藏的教学与科研等工作。