Research Article

Face-Centered Central Composite Design for the Optimization of the Extraction of Phenolic Compounds from Kernels and Shells of Raphia farinifera and Evaluation of the Antioxidant, Antimicrobial, and Anti-Inflammatory Activities

Table 6

Antimicrobial activities of extracts of shells and kernels of Raphia farinifera against some microbial species.

Microbial speciesE. coliS. enteritidisB. cereusS. aureusC. albicans
Concentration (ppm)MICMBCMBC/MICMICMBCMBC/MICMICMBCMBC/MICMICMBCMBC/MICMICMBCMBC/MIC

Extract of solid kernel2500>2500ND625>2500ND156.25156.251312.5>2500ND>2500>2500ND
Extract of solid shell2500>2500ND>2500>2500ND625250041200>2500ND>2500>2500ND

E. coli: Escherichia coli; S. enteritidis: Salmonella enteritidis; B. cereus: Bacillus cereus; S. aureus: Staphylococcus aureus; >2500 ppm: no inhibition observed at 2500 ppm; MIC: minimum inhibitory concentration; MBC: minimum bactericidal concentration; ND: not determined.