臭氧与海藻酸钠涂膜对葡萄的保鲜效果及其贮藏生理特性的影响
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杨凌示范区科技计划(2014NY44)


Effect of Ozone Treatment with and without Sodium Alginate Coatings on Preservation and Resistance Index of Grape Fruits
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    摘要:

    以采后“红地球”葡萄果实为试材,分别设置对照(CK)、250 μL/L臭氧处理(O3)、0.3%海藻酸钠涂膜处理(M)、250 μL/L臭氧+0.3%海藻酸钠涂膜处理(O3+M),在(0±0.5) ℃条件下贮藏,通过测定贮藏过程中葡萄可溶性固形物含量、可滴定酸含量、呼吸强度、硬度、过氧化物酶(POD)、超氧化物歧化酶(SOD)、几丁质酶(CHI)、β1,3葡聚糖酶(GLU)的活性以及膜脂过氧化物质丙二醛(MDA)和总酚含量等的变化,统计果实失重率与腐烂率情况,观察各处理对葡萄保藏效果的影响。结果表明:与对照相比,250 μL/L臭氧处理、0.3%海藻酸钠涂膜及250 μL/L臭氧+0.3%海藻酸钠涂膜复合处理均能显著降低葡萄果实的失重率和腐烂率,抑制葡萄果实的呼吸上升,延缓硬度下降,提高果实抗性相关酶(POD、SOD、GLU、CHI)的活性,减少膜脂的过氧化程度,延缓果实总酚含量下降,有效改善葡萄的贮藏品质,并以250 μL/L臭氧+0.3%海藻酸钠涂膜复合处理对葡萄果实保鲜效果最佳。

    Abstract:

    Using postharvest “Red global” grapes as the material, we investigated the effect of four different treatments of control,250 μL/L ozone, 0.3% coatings and the combination of 250 μL/L ozone and 0.3% coatings on the storage property of grapes, Through the determination of the soluble solids,titratable acid,respiration intensity, hardness, peroxidase(POD), superoxide dismutase (SOD), βl,3glucanase (GLU), chitinase(CHI), malondialdehyde(MDA), total phenol, statistical weight loss and decay. The results showed that the weight loss rate and rot rate of 250 μL/L ozone, 0.3% coatings and the combination of 250 μL/L ozone and 0.3% coatings was reduced, the activities of POD,SOD, CHI,GLU was promoted, MDA content was decreased and the drop of the total phenol was delayed compared with control group. In conclusion, the combination of 250 μL/L ozone and 0.3% sodium alginate coatings had the best result.

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齐 馨,杨晨茜,徐乐艺,等.臭氧与海藻酸钠涂膜对葡萄的保鲜效果及其贮藏生理特性的影响[J].西北植物学报,2016,36(12):2477-2483

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  • 在线发布日期: 2017-01-20
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