期刊
FOOD SCIENCE AND BIOTECHNOLOGY
卷 -, 期 -, 页码 -出版社
KOREAN SOCIETY FOOD SCIENCE & TECHNOLOGY-KOSFOST
DOI: 10.1007/s10068-023-01274-5
关键词
Biocontrol; Biosurfactants; Aleppo pine waste; Fermentation; Response surface methodology
This study optimized the production of bio-surfactants using cost-effective substrates and found that solid-state fermentation yielded higher production compared to submerged fermentation.
Bacillus subtilis SPB1 derived biosurfactants (BioS) proved its bio-control activity against Agrobacterium tumefaciens using tomato plant. Almost 83% of disease symptoms triggered by Agrobacterium tumefaciens were reduced. Aiming potential application, we studied lipopeptide cost-effective production in both fermentations systems, namely the submerged fermentation (SmF) and the solid-state fermentation (SSF) as well as the use of Aleppo pine waste and confectionery effluent as cheap substrates. Optimization studies using Box-Behnken (BB) design followed by the analysis with response surface methodology were applied. When using an effluent/sea water ratio of 1, Aleppo pine waste of 14.08 g/L and an inoculum size of 0.2, a best production yield of 17.16 +/- 0.91 mg/g was obtained for the SmF. While for the SSF, the best production yield of 27.59 +/- 1.63 mg/g was achieved when the value of Aleppo pine waste, moisture, and inoculum size were, respectively, equal to 25 g, 75%, and 0.2. Hence, this work demonstrated the superiority of SSF over SmF.
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