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热水预处理延长冷藏草莓果实保鲜效应的研究

Jiangsu Journal of Agricultural Sciences(2008)

Cited 9|Views5
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Abstract
以七八成熟"丰香"草莓果实为材料,比较了不同温度热水预处理对4℃冷藏草莓果实的保鲜效应。结果表明,45℃热水浸果10~20 min可以明显抑制贮藏期间果实花青素积累,降低果实失重率和腐烂指数,并延缓果实VC、可溶性固形物、可滴定酸和硬度下降。此外,热水处理还明显抑制果实呼吸速率,维持较高的超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(APX)活性,降低纤维素酶活性、超氧阴离子(O2-.)产生速率和丙二醛(MDA)含量,因而,适度热水预处理有利于延长草莓果实采后保鲜期。
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Key words
postharvest physiology,hot water pretreatment,quality,strawberry,preservation
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