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. 2021 Mar 22;10(3):676. doi: 10.3390/foods10030676

Table 1.

Phenolic profile, antioxidant (μg/mL) and antimicrobial activity (mg/mL) of the plant extracts.

Phenolic Profile
Peak Identified Compound Quantification (mg/g Extract)
Basil Sage
1 a 4-Hydroxy-7-O-(3′hydroxy-4′-O-glucosylbenzyl)benzyl 1.00 ± 0.05 n.d
2 b Luteolin-O-glucuronide n.d 12.77 ± 0.07
3 c Rosmarinic acid 17.90 ± 0.37 23.42 ± 0.26
Total 18.90 ± 0.41 36.19 ± 0.33
Antioxidant activity
Δt 120 min Δt 180 min
OxHLIA (IC50 values) Basil 60 ± 1 87 ± 1
Sage 2.6 ± 0.2 8.8 ± 0.4
Trolox 41 ± 1 63 ± 1
Antimicrobial activity
Sage Basil E211 E224
MIC MBC MIC MBC MIC MBC MIC MBC
Antibacterial Staphylococcus aureus 1 2 2 4 4 4 1 1
Bacillus cereus 1 2 1 2 0.5 0.5 2 4
Listeria monocytogenes 1 2 2 4 1 2 0.5 1
Escherichia coli 1 2 2 4 1 2 0.5 1
Salmonella Typhimurium 1 2 2 4 1 2 1 1
Enterobacter cloacae 1 2 2 4 2 4 0.5 0.5
MIC MFC MIC MFC MIC MFC MIC MFC
Antifungal Aspergillus fumigatus 0.25 0.5 0.25 0.5 1 2 1 1
Aspergillus niger 0.5 1 0.5 1 1 2 1 1
Aspergillus versicolor 0.25 0.5 0.5 1 2 2 1 1
Penicillium funiculosum 0.25 0.5 0.25 0.5 1 2 0.5 0.5
Penicillium verrucosum 0.25 0.5 0.25 0.5 2 4 1 1
Trichoderma viride 0.5 1 0.5 1 1 2 0.5 0.5

n.d—non detected. Calibration curve standards: a cinnamic acid (y = 1E + 06x—222,204, R2 = 0.9993, LOD = 0.12 µg/mL and LOQ = 0.83 µg/mL); b—quercetin-3-O-glucoside (y = 34843x—160173; R2 = 1.000; LOD = 0.21 µg/mL and LOQ = 0.71 µg/mL); c—rosmarinic acid (y = 191291x—652903; R2 = 0.999; LOD = 0.15 µg/mL and LOQ = 0.68 µg/mL).