介质阻挡放电等离子体对炭疽菌亚细胞损伤及芒果炭疽病的抑制作用
Food Chemistry
(
IF
8.5
)
Pub Date : 2022-01-21
, DOI:
10.1016/j.foodchem.2022.132197
Yue Wu
1
,
Jun-Hu Cheng
1
,
Da-Wen Sun
2
Affiliation
School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
Colletotrichum asianum ( C. asianum ) 是一种引起芒果炭疽病的新型病原真菌。冷等离子体是一种新型的非热去污技术，地毯清洗13825404095已被证明可有效控制采后真菌。在此，介质阻挡放电（DBD）等离子体用于处理无菌磷酸盐缓冲盐水中的C. asianum孢子，评估C. asianum亚细胞结构的损伤和芒果炭疽病的抑制作用。结果表明，处理9 min后，孢子萌发率和孢子活力分别下降95.48%和98.82%，亚细胞结构受损（P < 0.05)，导致孢子死亡。此外，DBD等离子处理可以控制芒果炭疽病，保持芒果品质，芒果处理9 min的发病率和病斑直径分别降低48.00%和62.95%。因此 DBD 血浆灭活了C. asianum孢子，为防治芒果炭疽病提供了一种替代技术。
Subcellular damages of Colletotrichum asianum and inhibition of mango anthracnose by dielectric barrier discharge plasma
Colletotrichum asianum (C. asianum) is a new pathogenic fungus that causes mango anthracnose. Cold plasma is a novel non-thermal decontamination technology, which has been proven to be effective in controlling postharvest fungus. Herein, dielectric barrier discharge (DBD) plasma was used to treat C. asianum spores in sterile phosphate-buffered saline, the damages in subcellular structures of C. asianum and inhibition of mango anthracnose were evaluated. Results showed that after 9 min treatment, the spore germination rate and spore viability were decreased by 95.48% and 98.82%, respectively, and the subcellular structures were damaged (P < 0.05), leading to spores death. Besides, DBD plasma treatments could control mango anthracnose and maintain mango quality, and the disease incidence and lesion diameter of mango treated for 9 min were decreased by 48.00% and 62.95%, respectively. Therefore DBD plasma inactivated C. asianum spore, providing an alternative technique for preventing and controlling mango anthracnose.
