PMID- 38498494
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240320
IS  - 2223-7747 (Print)
IS  - 2223-7747 (Electronic)
IS  - 2223-7747 (Linking)
VI  - 13
IP  - 4
DP  - 2024 Feb 13
TI  - Assessing the Efficiency of Antimicrobial Plant Extracts from Artemisia afra and 
      Eucalyptus globulus as Coatings for Textiles.
LID - 10.3390/plants13040514 [doi]
LID - 514
AB  - This study aimed to assess the antimicrobial activities of plant extracts from 
      Artemisia afra and Eucalyptus globulus when used as coatings for textiles. A 
      pulsed ultrasound-assisted extraction method (PUAE) was employed to obtain 
      methanolic and hexanoic extracts from both plants. Eucalyptus globulus methanol 
      extraction exhibited the highest yield at 22.76% (+/-0.61%), while Artemisia afra 
      demonstrated lower yields. Phytochemical screening identified various secondary 
      metabolites in the extracts, including phenols, quinones, and steroids. 
      Antimicrobial tests against Staphylococcus aureus and Escherichia coli revealed 
      varying degrees of susceptibility, with Eucalyptus globulus hexanoic extracts 
      showing the highest activity against Staphylococcus aureus at an average 
      percentage growth of 18.74% (+/-0.26%). Minimum inhibitory concentration (MIC) 
      values were determined for the extracts, but complete inhibition did not occur at 
      concentrations below 500 mug/mL. The extracts exhibited varying effects on 
      Staphylococcus aureus and Escherichia coli growth, with some extracts promoting 
      bacterial growth. Coating textiles with Eucalyptus globulus methanolic extracts 
      demonstrated antibacterial activity against Staphylococcus aureus with the 
      highest zone of inhibition observed in cotton-coated samples (258.4 mm(2)). 
      Polyester-coated samples exhibited smaller inhibition zones, with the lowest 
      observed in Eucalyptus globulus methanolic extract coating (65.97 mm(2)). 
      Scanning electron microscope (SEM) analysis revealed visible surface morphology 
      changes in coated fabrics, depicting fine, cluster, lumpy, flaky, and 
      fragment-like morphologies. Laundering effects on coated fabrics were 
      investigated, showing a significant decrease in antimicrobial activity after 
      washing. Fourier-transform infrared spectroscopy (FTIR) identified functional 
      groups in the extracts associated with antimicrobial properties. The complexity 
      of the bioactive compounds suggests potential antimicrobial efficacy, resting on 
      factors such as geographical location, climate, and extraction methods. 
      Notwithstanding the limitations, this study contributes valuable insights into 
      the use of plant extracts as antimicrobial coatings for textiles.
FAU - Nortjie, Elvino
AU  - Nortjie E
AD  - Bioresource Engineering Research Group, Department of Chemical Engineering, Cape 
      Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa.
FAU - Basitere, Moses
AU  - Basitere M
AUID- ORCID: 0000-0002-1258-5443
AD  - Academic Support Programme for Engineering in Cape Town (ASPECT), Centre for 
      Higher Education Development, University of Cape Town, Rondebosch, Cape Town 
      7700, South Africa.
FAU - Moyo, Doice
AU  - Moyo D
AD  - Technology Station Clothing and Textiles, Symphony Way, Bellville 7535, South 
      Africa.
FAU - Nyamukamba, Pardon
AU  - Nyamukamba P
AD  - Technology Station Clothing and Textiles, Symphony Way, Bellville 7535, South 
      Africa.
LA  - eng
PT  - Journal Article
DEP - 20240213
PL  - Switzerland
TA  - Plants (Basel)
JT  - Plants (Basel, Switzerland)
JID - 101596181
PMC - PMC10893333
OTO - NOTNLM
OT  - Artemisia afra
OT  - Eucalyptus globulus
OT  - antimicrobial textiles
OT  - minimum inhibitory concentration
OT  - phytochemical screening
OT  - washing durability
OT  - zone of inhibition
COIS- The authors declare no conflicts of interest.
EDAT- 2024/03/19 00:42
MHDA- 2024/03/19 00:43
PMCR- 2024/02/13
CRDT- 2024/03/18 13:37
PHST- 2023/12/27 00:00 [received]
PHST- 2024/01/23 00:00 [revised]
PHST- 2024/02/04 00:00 [accepted]
PHST- 2024/03/19 00:43 [medline]
PHST- 2024/03/19 00:42 [pubmed]
PHST- 2024/03/18 13:37 [entrez]
PHST- 2024/02/13 00:00 [pmc-release]
AID - plants13040514 [pii]
AID - plants-13-00514 [pii]
AID - 10.3390/plants13040514 [doi]
PST - epublish
SO  - Plants (Basel). 2024 Feb 13;13(4):514. doi: 10.3390/plants13040514.