Raw softwood kraft lignin powder (BioPivaTM100, denoted as SR-lignin) was purchased from UPM Biochemicals, Helsinki, Finland. PBS pellets were obtained from PPT Global Chemical Public Company Limited, Bangkok, Thailand. Pure culture of C. gloeosporioides was obtained from the Plant Protection Research and Development Office of the Department of Agriculture, Bangkok, Thailand, while pure culture of L. theobromae was isolated from “Nam Dok Mai Si Thong” mango fruit.
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