Effect of heat treatment on lignification of postharvest bamboo shoots (Phyllostachys praecox f. prevernalis.)
Effect of heat treatment on lignification of postharvest bamboo shoots (Phyllostachys praecox f. prevernalis.)
复制标题
热处理对采后竹笋木质化的影响（Phyllostachys praecox f. prevernalis.）
DOI：
10.1016/j.foodchem.2012.07.087
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发表时间：
2012-12-15
期刊：
影响因子：
8.8
通讯作者：
Xie, Jianwei
中科院分区：
文献类型：
--
作者：
Luo, Zisheng;Feng, Simin;Xie, Jianwei
为评价热处理对采后竹笋品质的影响，测定了20℃贮藏期间竹笋的硬度、发病率、呼吸作用和乙烯产生量、ACC合酶（ACS）和ACC氧化酶（ACO）活性、木质素和纤维素含量，以及苯丙氨酸解氨酶（PAL）、肉桂醇脱氢酶（CAD）和过氧化物酶（POD）活性。 45℃热处理5小时后。热处理抑制了竹笋的发病率和呼吸作用，延缓了乙烯的产生，并降低了 ACS 和 ACO 活性。此外，热处理显着延迟了PAL CAD和POD活性的上升，这与木质素合成的抑制和组织木质化的延迟有关。这些发现表明，热处理可能是延迟木质化并降低竹笋在 20 摄氏度储存期间发病率的潜在工具。(C) 2012 Elsevier Ltd. 保留所有权利。
In order to evaluate the effects of heat treatment on the quality of postharvest bamboo shoots, the firmness, disease incidence, respiration and ethylene production, ACC synthase (ACS) and ACC oxidase (ACO) activities, lignin and cellulose contents, and the activities of phenylalanine ammonia-lyase (PAL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POD) were examined during storage at 20 degrees C after heat treatment at 45 degrees C for 5 h. Heat treatment inhibited disease incidence and respiration, retarded ethylene production, and decreased ACS and ACO activities in bamboo shoots. Furthermore, heat treatment significantly delayed the rise in the activities of PAL CAD and POD, which were associated with the inhibition of the synthesis of lignin and the delayed tissue lignification. These findings suggest that heat treatment could be a potential tool to delay lignification and decrease disease incidence in bamboo shoots during storage at 20 degrees C. (C) 2012 Elsevier Ltd. All rights reserved.