Journal
PLANTS-BASEL
Volume 10, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/plants10010092
Keywords
aloe vera; antimicrobial activity; natural aloe products; commercial aloe products
Categories
Funding
- Slovenian Ministry of Education, Science and Sports [11083-25/2017]
- Slovenian Research Agency [P2-0046, J2-1725, P2-0118]
- young researcher ARRS fellowship [2187/FS-2019]
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Commercial products made from natural resources often contain additives to enhance their biological activities. A comparative study on the antimicrobial properties of aloe and its commercial products showed that natural samples exhibited antimicrobial activity against a variety of microorganisms. Fresh juice and gel of Aloe arborescens showed particularly good antimicrobial efficacy on tested microorganisms, suggesting potential for use in medicine, cosmetics, food, and pharmaceutical industries.
Nowadays, there are many commercial products from natural resources on the market, but they still have many additives to increase their biological activities. On the other hand, there is particular interest in natural sources that would have antimicrobial properties themselves and would inhibit the growth and the reproduction of opportunistic microorganisms. Therefore, a comparative antimicrobial study of natural samples of aloe and its commercial products was performed. Qualitative and quantitative determination of antimicrobial efficiency of Aloe arborescens and Aloe barbadensis and its commercial products on fungi, Gram-negative, and Gram-positive bacteria was performed. Samples exhibited antimicrobial activity and slowed down the growth of all tested microorganisms. Research has shown that natural juices and gels of A. arborescens and A. barbadensis are at higher added concentrations comparable to commercial aloe products, especially against microbial cultures of Bacillus cereus, Candida albicans, and Pseudomonas aeruginosa, whose growths were completely inhibited at a microbial concentration of 600 mu g/mL. Of particular importance are the findings of the good antimicrobial efficacy of fresh juice and gel of A. arborescens on tested microorganisms, which is less known and less researched. These results show great potential of A. arborescens for further use in medicine, cosmetics, food, and pharmaceutical industries.
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