Symmetrical Antioxidant and Antibacterial Properties of Four Romanian Cruciferous Extracts

Four alcoholic extracts from Romanian Cruciferous species—cabbage, acclimatized broccoli, black radish and cauliflower—were obtained in a microwave field. The extracts showed good and symmetric antioxidant activity (0.97–1.13 mmol/L TE) and good phenolic content (1001–1632 mg GAE/L). For the HPLC me...

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Published inSymmetry (Basel) Vol. 13; no. 5; p. 893
Main Authors Muntean, Delia, Ştefănuţ, Mariana, Căta, Adina, Buda, Valentina, Danciu, Corina, Bănică, Radu, Pop, Raluca, Licker, Monica, Ienaşcu, Ioana
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2021
Subjects
Acclimatization
antibacterial activities
Antibiotics
Antimicrobial agents
antioxidant activities
Antioxidants
Asymmetry
Bacteria
Brassica
Broccoli
Cancer
cruciferous
Ethanol
Food
Functional foods & nutraceuticals
glucosinolates
Gram-positive bacteria
HPLC
Metabolites
Pathogens
Phytochemicals
Polyphenols
Radishes
Staphylococcus infections
Sulfur
Vegetables
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Summary:Four alcoholic extracts from Romanian Cruciferous species—cabbage, acclimatized broccoli, black radish and cauliflower—were obtained in a microwave field. The extracts showed good and symmetric antioxidant activity (0.97–1.13 mmol/L TE) and good phenolic content (1001–1632 mg GAE/L). For the HPLC method, the limit of detection (LOD), limit of quantitation (LOQ) and recovery degree were established. The small values of LOD and LOQ indicated a great fit of data. The HPLC method achieved satisfactory quantitative recoveries in the range of 96%–122%, except for the lowest sinigrin concentration (8.774 µg/mL). The presence of metals in the studied extracts falls within the allowed limits. The four Cruciferous extracts showed good and slightly asymmetric antibacterial activities against some Gram-positive and Gram-negative bacteria, including strains with known resistance to antibiotics. Moreover, greater inhibitory effects were exhibited against Gram-negative bacteria. Asymmetrically, no inhibition was observed on the fungal strains. Therefore, the present results may suggest that some alcoholic extract formulas of cabbage and black radish (presenting good antibacterial activity) might be helpful in the antimicrobial fight and could be successfully used on selected cases and strains.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym13050893