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Evaluation of inhibitory activities of two medicinal plant extracts Parkia biglobosa and Lonicera japonica against spoilage microorganisms isolated from mulberry fruit
Author(s) -
Herman Richard A.,
Wang JinZheng,
Amuzu Prosper,
Shittu Saidi,
Wu FuAn,
Wang Jun
Publication year - 2020
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.14630
Subject(s) - parkia biglobosa , food spoilage , japonica , postharvest , biology , microorganism , food science , horticulture , biological pest control , bacillus subtilis , botany , locust , bacteria , genetics
Two medicinal plants, African Locust Bean ( Parkia biglobosa ) and Lonicera japonica , traditionally used in West Africa and China were investigated against four spoilage microorganisms: Bacillus subtilis , Cronobacter dublinensis , Pantoea agglomerans , and Bacillus sp ., isolated from mulberry fruit. The aqueous extract of the P. biglobosa (ALB) was potent with average inhibitory zones against four spoilage microorganisms recorded as (Means ± SD ) 6.5 to 19.5 mm as well as 6.5 to 15.5 mm for L. japonica (HSF) at concentrations of 400 mg/ml. The aqueous extracts of P. biglobosa (54%) inhibited decay better than L. japonica (66%). Decay situations of the medicinal plants with 1‐MCP emerged higher than the control group 78%, 72%, and 68% in ALB + 1‐MCP, HSF + 1‐MCP, and deionized water, respectively. Therefore, two plant extracts against spoilage microorganisms isolated from mulberry fruit had good inhibitory activities, but their mixture with 1‐MCP could not preserve the mulberry fruits in limited storage time. Practical applications Advance in the bacteria control using a natural control like medicinal plants against plant infections was investigated. The present study demonstrated the potentials of African locust bean and L. japonica as a novel biocontrol agent to the extent of preserving the postharvest decay of mulberry fruit in limited storage time at room temperature. The results and findings obtained in this study support the potential application of these two plants in mulberry fruit preservation as well as in traditional therapeutics. In addition, the combination with 1‐MCP also serves as the potential to extend the shelf life of mulberry fruit in order to limit the use of pesticides in postharvest treatments. This study reports for the first time isolated microorganisms from mulberry fruit and the developments of edible coatings utilizing plant extracts from different continents against their activities.