Phylloplane Fungal Enzyme Accelerate Decomposition of Biodegradable Plastic Film in Agricultural Settings
Phylloplane Fungal Enzyme Accelerate Decomposition of Biodegradable Plastic Film in Agricultural Settings
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DOI：
10.6090/jarq.50.229
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发表时间：
2016-07-01
影响因子：
0.4
通讯作者：
Kitamoto, Hiroko
中科院分区：
文献类型：
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作者：
Koitabashi, Motoo;Sameshima-Yamashita, Yuka;Kitamoto, Hiroko
可生物降解塑料 (BP) 地膜在农田中的分解速度取决于环境条件。如果用过的地膜的降解不足以进行耕作，它们会妨碍农业工作并缠绕在农用设备上。我们开发了一种新技术，通过应用来自类拟叶面真菌（菌株 B47-9）的酶来加速农田中 BP 地膜的降解。单独对酶溶液进行喷雾处理显着加速了膜的降解，并且额外施用保湿剂羧甲基纤维素钠盐（CMC）进一步加速了分解。市售 BP 地膜在用酶溶液和 CMC 处理一天后开始分解。治疗7天内，薄膜中的小撕裂变成了长裂缝，覆盖了薄膜总面积的6.2%。
The rate at which biodegradable plastic (BP) mulch films decompose in agricultural fields depends on environmental conditions. If degradation of used mulch film is insufficient for plowing-down, they impede agricultural work and get entangled in farm equipment. We developed a new technique to accelerate the degradation of BP mulch films in agricultural fields by applying an enzyme from a Paraphoma-like phylloplane fungus (strain B47-9). Spray treatment of the enzyme solution alone significantly accelerated film degradation, and the additional application of a moisture-retaining agent, carboxymethyl cellulose sodium salt (CMC), further accelerated decomposition. Commercially available BP mulch films started to break down one day after treatment with the enzyme solution and CMC. Within seven days of treatment, small tears in the film turned into long cracks, covering 6.2% of the total film area.