Effects of Plant-based Active Ingredients on Postharvest Diseases of Mango Fruit

SU Zihan; GAO Zhaoyin; HU Meijiao; LI Min; ZHANG Zhengke

doi:10.15886/j.cnki.rdswxb.2019.01.005

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The mycelia growth rate of pathogens was used to analyze the fungistatic ability of 16 active ingredients from plants against postharvest pathogens（Colletotrichum gloeosporioides, C. acutatum, Botryodiplodia theobromae and Phomopsis mangiferae）, and some of the plant-based active ingredients with high inhibitory activity against the pathogens were tested to determine their control efficacy against the major postharvest diseases in mango fruit（Mangifera indica Linn）. The results showed that all of the plant-based active ingredients at a concentration of 100 mg·L^-1 had an inhibitory ability against mycelial growth of the 4 species of pathogens under test, of which the active ingredients piperlongumine, cinnamaldehyde, curcumin, piperine, cheysophanol, capsaicin and emodin had an average inhibitory rate of above 70.00%. The active ingredients piperlongumine, cinnamaldehyde, curcumin and piperine at 1 000 mg·L^-1 had a better control effect on the postharvest diseases of mango, of which piperlongumine was the most effective for controlling postharvest diseases in mango fruit（82.18% and 80.75% for anthracnose（C. gloeosporioides） and stem end rot（P. mangiferae）, respectively, averaging 81.47%）, better than the positive control prochloraz. This suggests that piperlongumine should have the potential to be used as an alternative chemical fungicide against postharvest diseases of mango.

Effects of Plant-based Active Ingredients on Postharvest Diseases of Mango Fruit

1. College of Food Science and Technology, Hainan University, Haikou, Hainan 570228, China;

2. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China

Received Date: 2018-11-08

Rev Recd Date: 2019-01-05

Key words:

Abstract: The mycelia growth rate of pathogens was used to analyze the fungistatic ability of 16 active ingredients from plants against postharvest pathogens（Colletotrichum gloeosporioides, C. acutatum, Botryodiplodia theobromae and Phomopsis mangiferae）, and some of the plant-based active ingredients with high inhibitory activity against the pathogens were tested to determine their control efficacy against the major postharvest diseases in mango fruit（Mangifera indica Linn）. The results showed that all of the plant-based active ingredients at a concentration of 100 mg·L^-1 had an inhibitory ability against mycelial growth of the 4 species of pathogens under test, of which the active ingredients piperlongumine, cinnamaldehyde, curcumin, piperine, cheysophanol, capsaicin and emodin had an average inhibitory rate of above 70.00%. The active ingredients piperlongumine, cinnamaldehyde, curcumin and piperine at 1 000 mg·L^-1 had a better control effect on the postharvest diseases of mango, of which piperlongumine was the most effective for controlling postharvest diseases in mango fruit（82.18% and 80.75% for anthracnose（C. gloeosporioides） and stem end rot（P. mangiferae）, respectively, averaging 81.47%）, better than the positive control prochloraz. This suggests that piperlongumine should have the potential to be used as an alternative chemical fungicide against postharvest diseases of mango.

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Reference (17)

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Effects of Plant-based Active Ingredients on Postharvest Diseases of Mango Fruit

doi: 10.15886/j.cnki.rdswxb.2019.01.005

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