Abstract
Despite the popularity of traditional medicine in Africa, the continent remains behind in terms of the regulation, safety and quality control of its medicinal plant industry. There is heightened interest in essential aspects that affect the industry, with storage practices and consequent effects on plant efficacy being of high priority. Therefore, the effect of short-term storage on the efficacy and phytochemical content of three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea) was investigated. The antimicrobial and antioxidant activities of four solvent extracts of the selected plant (fresh and short-term stored) were compared. Phytochemical analysis of 50% methanol extracts of plant materials was determined using spectrophotometric methods. Fresh samples of the majority of the plant extracts indicated better antibacterial (Staphylococcus aureus and Escherichia coli) and antifungal (Candida albicans) activities in comparison to the stored samples. There was no specific pattern in antioxidant activity for both stored and fresh samples for the different plants. Phytochemical analysis pointed towards noticeable differences between fresh and stored samples of the various plant extracts with fresh samples showing higher chemical concentrations in many plant parts. In general, the current findings indicate that the degree of changes in the pharmacological and phytochemical activity due to storage was plant part- and species-specific.
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Claims 5
Claim · model-written summary
Short-term storage gave fresh medicinal plant extracts better antibacterial activity against Staphylococcus aureus and Escherichia coli.
- Taxon
- Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea
Ocimum basilicum
Hypoxis hemerocallidea
Senna petersianae2 - Treatment
- short-term storagee0
- Interactor
- Staphylococcus aureus
Staphylococcus aureuse1pathogen - Second interactor
- Escherichia coli
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Escherichia colie1pathogen - Outcome
- antibacteriale1
- Direction
- bettere1
- Qualifier
- majority of the plant extractse1
- Comparator
- Fresh samplese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of short-term storage on the efficacy and phytochemical content”
e1“Fresh samples of the majority of the plant extracts indicated better antibacterial (Staphylococcus aureus and Escherichia coli) and antifungal (Candida albicans) activities in comparison to the stored samples”
e2“three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea)”
Claim · model-written summary
Short-term storage gave fresh medicinal plant extracts better antifungal activity against Candida albicans.
- Taxon
- Ocimum basilicum, Senna petersiana and Hypoxis hemerocallideaOcimum basilicumHypoxis hemerocallideaSenna petersianae2
- Treatment
- short-term storagee0
- Interactor
- Candida albicans
Candida albicanse1pathogen - Outcome
- antifungale1
- Direction
- bettere1
- Qualifier
- majority of the plant extractse1
- Comparator
- Fresh samplese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of short-term storage on the efficacy and phytochemical content”
e1“Fresh samples of the majority of the plant extracts indicated better antibacterial (Staphylococcus aureus and Escherichia coli) and antifungal (Candida albicans) activities in comparison to the stored samples”
e2“three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea)”
Claim · model-written summary
Storage showed no specific pattern in antioxidant activity of the medicinal plant extracts.
- Taxon
- Ocimum basilicum, Senna petersiana and Hypoxis hemerocallideaOcimum basilicumHypoxis hemerocallideaSenna petersianae1
- Treatment
- storede0
- Outcome
- antioxidant activitye0
- Direction
- no specific patterne0
- Comparator
- freshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no specific pattern in antioxidant activity for both stored and fresh samples for the different plants”
e1“three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea)”
Claim · model-written summary
Fresh medicinal plant samples showed higher chemical concentrations than stored samples in many plant parts.
- Taxon
- Ocimum basilicum, Senna petersiana and Hypoxis hemerocallideaOcimum basilicumHypoxis hemerocallideaSenna petersianae1
- Treatment
- stored samplese0
- Outcome
- chemical concentrationse0
- Direction
- highere0
- Qualifier
- in many plant partse0
- Comparator
- fresh samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytochemical analysis pointed towards noticeable differences between fresh and stored samples of the various plant extracts with fresh samples showing higher chemical concentrations in many plant parts”
e1“three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea)”
Claim · model-written summary
The degree of storage-related change in pharmacological and phytochemical activity depends on plant part and species.
- Taxon
- Ocimum basilicum, Senna petersiana and Hypoxis hemerocallideaOcimum basilicumHypoxis hemerocallideaSenna petersianae1
- Treatment
- storagee0
- Outcome
- pharmacological and phytochemical activitye0
- Direction
- changese0
- Qualifier
- plant part- and species-specifice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the degree of changes in the pharmacological and phytochemical activity due to storage was plant part- and species-specific”
e1“three popular medicinal plants (Ocimum basilicum, Senna petersiana and Hypoxis hemerocallidea)”
The same questions in other papers
storage · quality: phytochemicals · Ocimum basilicum (basil)Positive and negative results
3 papers in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.