Publication: The obtaining of an antioxidant product based on a Rosmarinus officinalis freeze-dried extract
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Issued Date
2010
Resource Type
File Type
application/pdf
ISSN
18117775
Other identifier(s)
2-s2.0-77955598362
Rights Holder(s)
Scopus
Bibliographic Citation
International Journal of Pharmacology. Vol 6, No.4 (2010), p.387-392
Suggested Citation
Emanuel V., Adrian V., Sultana N. The obtaining of an antioxidant product based on a Rosmarinus officinalis freeze-dried extract. International Journal of Pharmacology. Vol 6, No.4 (2010), p.387-392. doi:10.3923/ijp.2010.425.430 Retrieved from: https://hdl.handle.net/20.500.14740/7677
Author(s)
Abstract
The aim of this study was to obtain a freeze-dried extract with an important antioxidant and antimicrobial effect from Rosmarinus officinalis. The extracts were obtained in a fluidized bed solid extractor and there has resulted that the optimal values of phenols, flavonoids and the highest reduction power were determined when using 70% ethanol as solvent, the antioxidant activity ranging between 90-95%. In case of the freeze-dried product, the maximum antioxidant activity was registered when using 0.2 mg mL-1 powder and the results were optimal as well in case of determining flavonoids, phenols and the reduction power. The antimicrobial effect of the extracts and of the freeze-dried product were quantified by using the Colony Quant software on the strains Escherichia coli CBAB 2, Bacillus cereus CMGB 215, Listeria innocua CMGB 218. An inhibition area of maximum 2 cm resulted when using 70% ethanol as solvent. The optimal inhibitory effect of the freeze-dried product, of around 1.8 cm, was determined by a 0.2 mg mL-1 concentration. © 2010 Asian Network for Scientific Information.
Subject(s)
Alcohol
Flavonoid
Phenol
Rosmarinus officinalis extract
Scavenger
Antibacterial activity
Antioxidant activity
Article
Bacillus cereus
Bacterial strain
Computer program
Concentration (parameters)
Concentration response
Controlled study
Drug determination
Drug effect
Drug mechanism
Drug screening
Escherichia coli
Freeze drying
Listeria innocua
Nonhuman
Quantitative analysis
Solid phase extraction
Flavonoid
Phenol
Rosmarinus officinalis extract
Scavenger
Antibacterial activity
Antioxidant activity
Article
Bacillus cereus
Bacterial strain
Computer program
Concentration (parameters)
Concentration response
Controlled study
Drug determination
Drug effect
Drug mechanism
Drug screening
Escherichia coli
Freeze drying
Listeria innocua
Nonhuman
Quantitative analysis
Solid phase extraction