scholarly journals Antimicrobial Efficiency of Aloe arborescens and Aloe barbadensis Natural and Commercial Products

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 92
Author(s):  
Kaja Kupnik ◽  
Mateja Primožič ◽  
Željko Knez ◽  
Maja Leitgeb
Keyword(s):  
Biological Activities ◽  
Antimicrobial Properties ◽  
Aloe Barbadensis ◽  
Commercial Products ◽  
Qualitative And Quantitative ◽  
Gram Positive Bacteria ◽  
Antimicrobial Efficiency ◽  
Aloe Arborescens ◽  
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 μg/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.

Synthesis, characterization, and antimicrobial properties of novel dual drug loaded electrospun mat for wound dressing applications

2021 ◽  
Vol 36 (5) ◽  
pp. 431-443
Author(s):  
Swetha Andra ◽  
Satheesh kumar Balu ◽  
Rajalakshmi Ramamoorthy ◽  
Murugesan Muthalagu ◽  
Devisri Sampath ◽  
...  
Keyword(s):  
Wound Healing ◽  
Drug Release ◽  
Wound Dressing ◽  
High Surface ◽  
High Surface Area ◽  
Antimicrobial Properties ◽  
Sustained Drug Release ◽  
Gram Positive Bacteria ◽  
Antimicrobial Efficiency ◽  
Cissus Quadrangularis

Wound healing properties of some herbs have been known for decades. Recently, electrospun mats have been used as a wound dressing material due to the high surface area of fiber and ease of incorporation of drug into the fiber matrix. In this aspect, the incorporation of herbal extracts in electrospun matrix could provide synergistic effect for wound healing. In the present work, extracts from Cissus quadrangularis (CQ) and Galinsoga parviflora Cav (GP) were loaded into the PVA solution in different proportions. These solutions were used to produce nanofibrous mat in electrospinning and the characteristics of the mat were analyzed. The morphology of the fiber was analyzed using scanning electron microscope (SEM), the presence of functional groups was identified using Fourier transform infrared spectroscopy (FTIR). The result of drug release shows that the GP extract loaded PVA nanofibrous mat has sustained drug release of 28% after 8 h of incubation compared to CQ loaded PVA nanofibrous mat. This trend follows as the concentration of GP increases in the mixture. The antimicrobial efficiency of the prepared mat was evaluated against both Gram-negative bacteria E. coli and Gram-positive bacteria S. aureus. The prepared nanofibrous mat has shown excellent antibacterial activity, cell viability, hemocompatibility, and sufficient tensile properties which indicates that it could be a promising biomaterial for wound dressing application.

scholarly journals Comparative analysis of some bioactive compounds in leaves of different Aloe species

BMC Chemistry ◽  
2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Bunea Andrea ◽  
Rugină Dumitrița ◽  
Copaciu Florina ◽  
Dulf Francisc ◽  
Veres Anastasia ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Bioactive Compounds ◽  
Current Data ◽  
Aloe Barbadensis ◽  
Vast Number ◽  
Aloe Arborescens ◽  
Aloe Ferox ◽  
Pharmaceutical Industries

Abstract Although a vast number of Aloe species are known, only the Aloe vera and Aloe arborescens species are currently used by cosmetic and pharmaceutical industries. Therefore, the current study aims to complete the existent literature data with new information on the phytochemical composition of some lesser-known Aloe species, with the main focus on carotenoids and fatty acids. Among the analyzed species, Aloe aculeata and Aloe ferox had the highest content in carotenoids, the major pigments being lutein and β-carotene (according to HPLC analysis). The fatty acid profile of each Aloe species was analysed by GC–MS. Linolenic and linoleic acids were the major polyunsaturated fatty acids found in higher percent in Aloe ferox, Aloe spectabilis and Aloe marlothii. Instead, Aloe aculeata proved to have a distinct fatty acid profile, rich in monounsaturated fatty acids. Species such as Aloe arborescens and Aloe marlothii proved to have the highest antioxidant potential according to data of DPPH, ORAC, HPS assays, even if the richest one in vitamin C was found to be Aloe spectabilis. Though the scientific research is mainly focused on the common species Aloe barbadensis, the current data suggests that other Aloe species could receive more attention from industry part, being great sources of bioactive compounds.

scholarly journals Comparative analysis of some bioactive compounds in leaves of different Aloe species

2020 ◽  
Author(s):  
Bunea Andrea ◽  
Dumitrita Rugina ◽  
Copaciu Florina ◽  
Dulf Francisc ◽  
Veres Anastasia ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Bioactive Compounds ◽  
Current Data ◽  
Aloe Barbadensis ◽  
Vast Number ◽  
Aloe Arborescens ◽  
Aloe Ferox ◽  
Pharmaceutical Industries

Abstract Although a vast number of Aloe species are known, only the Aloe vera and Aloe arborescens species are currently used by cosmetic and pharmaceutical industries. Therefore, the current study aims to complete the existent literature data with new information on the phytochemical composition of some lesser-known Aloe species, with the main focus on carotenoids and fatty acids. Among the analyzed species, Aloe aculeata and Aloe ferox had the highest content in carotenoids, the major pigments being lutein and β -carotene (according to HPLC analysis). The fatty acid profile of each Aloe species was analysed by GC-MS. Linolenic and linoleic acids were the major polyunsaturated fatty acids found in higher percent in Aloe ferox , Aloe spectabilis and Aloe marlothii . Instead, Aloe aculeata proved to have a distinct fatty acid profile, rich in monounsaturated fatty acids. Species such as Aloe arborescens and Aloe marlothii proved to have the highest antioxidant potential according to data of DPPH, ORAC, HPS assays, even if the richest one in vitamin C was found to be Aloe spectabilis. Though the scientific research is mainly focused on the common species Aloe barbadensis , current data suggests that other Aloe species could receive more attention from industry part, being great sources of bioactive compounds.

scholarly journals Sex-specific variations in phytochemicals and antimicrobial potentiality of Dioscorea

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Chiranjit Paul ◽  
Amal Debnath ◽  
Kripamoy Chakraborty ◽  
Sushanta Ghosh ◽  
Abhijit Bhattacharjee ◽  
...  
Keyword(s):  
Biological Activities ◽  
Research Work ◽  
Active Participation ◽  
Medical Practices ◽  
Male And Female ◽  
Qualitative And Quantitative ◽  
Antimicrobial Efficiency ◽  
The World ◽  
Specific Variation ◽  
Specific Assessment

Abstract Background The monocotyledonous herbaceous crop Dioscorea is native to tropical and temperate regions of the world. Dioscorea tubers are dioecious in nature, have colossal therapeutic potentiality, and are frequently used in traditional medical practices throughout the world. Most of the research works are aimed to determine the medicinal property, nutritions, antinutrients, and biological activities of Dioscorea spp. without specifying the sexes of Dioscorea which promoted us to carry out this present research work. Results Sex-specific variation of phytoconstituents, antioxidants, and antimicrobial efficiency in tubers was appraised. The results obtained from this study divulge existence of significant quantitative variation between the male and female tubers. The female tubers are superior in acquiring phytochemicals compared to male counterparts and acquired maximum antioxidant and antimicrobial potentiality. Conclusion This study will offer an apposite baseline for further sex-specific assessment which can be directed towards both qualitative and quantitative amelioration of medicinally important noble compounds by exploiting modern scientific strategies leading to their active participation in nutraceutical industries.

scholarly journals Evaluation of the Antibacterial and Antifungal Properties of Phragmanthera capitata (Sprengel) Balle (Loranthaceae), a Mistletoe Growing on Rubber Tree, Using the Dilution Techniques

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Franklin Uangbaoje Ohikhena ◽  
Olubunmi Abosede Wintola ◽  
Anthony Jide Afolayan
Keyword(s):  
Aqueous Extract ◽  
Rubber Tree ◽  
Antimicrobial Properties ◽  
Bactericidal Effect ◽  
Antimicrobial Activities ◽  
Gram Positive Bacteria ◽  
Agar Dilution ◽  
Antibacterial And Antifungal

The alarming increase in multidrug resistance of pathogenic microorganisms to conventional drugs in recent years has prompted the search for new leads in alternative remedies in natural products. Hence, this study was aimed at evaluating the antimicrobial properties of Phragmanthera capitata, a parasitic mistletoe growing on rubber trees. The in vitro antimicrobial activities of the acetone, methanol, ethanol, and aqueous extracts were investigated using five gram-negative and five gram-positive bacteria and four fungi. A 96-well resazurin broth and agar dilution techniques were used for the determination of the Minimum Inhibitory and Bactericidal Concentrations. The antibacterial activity of the organic extracts had comparative effects on all the bacteria with a MIC of 1.25 to 5 mg/mL and MBC of 2.5 to 10 mg/mL. However, the acetone extract showed higher bactericidal effect while the aqueous extract was not active. The organic solvent extracts also showed antifungal activities on two of the fungi with a MIC of 1.25 mg/mL to 10 mg/mL. However, the aqueous extract had the highest activity inhibiting all the fungi with a MIC of ≤0.3125 to 1.25 mg/mL. The study supports the ethnomedicinal claims of P. capitata as a remedy for the diseases/infections caused by these organisms.

scholarly journals Comparative analysis of some bioactive compounds in leaves of different Aloe species

2020 ◽  
Author(s):  
Bunea Andrea ◽  
Dumitrita Rugina ◽  
Copaciu Florina ◽  
Dulf Francisc ◽  
Veres Anastasia ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Bioactive Compounds ◽  
Current Data ◽  
Aloe Barbadensis ◽  
Vast Number ◽  
Aloe Arborescens ◽  
Aloe Ferox ◽  
Pharmaceutical Industries

Abstract Although a vast number of Aloe species are known, only the Aloe vera and Aloe arborescens species are currently used by cosmetic and pharmaceutical industries. Therefore, the current study aims to complete the existent literature data with new information on the phytochemical composition of some lesser-known Aloe species, with the main focus on carotenoids and fatty acids. Among the analyzed species, Aloe aculeata and Aloe ferox had the highest content in carotenoids, the major pigments being lutein and β-carotene (according to HPLC analysis). The fatty acid profile of each Aloe species was analysed by GC-MS. Linolenic and linoleic acids were the major polyunsaturated fatty acids found in higher percent in Aloe ferox, Aloe spectabilis and Aloe marlothii. Instead, Aloe aculeata proved to have a distinct fatty acid profile, rich in monounsaturated fatty acids. Species such as Aloe arborescens and Aloe marlothii proved to have the highest antioxidant potential according to data of DPPH, ORAC, HPS assays, even if the richest one in vitamin C was found to be Aloe spectabilis. Though the scientific research is mainly focused on the common species Aloe barbadensis, current data suggests that other Aloe species could receive more attention from industry part, being great sources of bioactive compounds.

scholarly journals Chemical composition and antibacterial effect of Smyrnium olusatrum L. Fruit Essential Oil

2020 ◽  
Vol 10 (6) ◽  
pp. 577
Author(s):  
Saida Cherif Hamida ◽  
Imane Zalegh ◽  
Fairouz Saidi ◽  
Nabahat Benmanssour ◽  
M. Carmen González-Mas ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Inhibitory Concentration ◽  
Antibacterial Effect ◽  
Biological Activities ◽  
Inhibition Zone ◽  
Bacterial Strains ◽  
Gram Positive Bacteria ◽  
Therapeutic Properties

The plants of the <em>Apiaceae</em> family are mainly used for food purposes and their multiple therapeutic properties and biological activities. This study aims to determine the chemical composition of Essential Oil (EO) of the fruits of <em>Smyrnium olusatrum</em> L. obtained by hydrodistillation in Clevenger-type apparatus. GC/MS analyzed the EO and the antibacterial activity was evaluated against clinical bacterial strains by two complementary methods (Disc diffusion and micro-atmosphere) and determination of Minimal Inhibitory Concentration (MIC). The results of chemical composition show that the EO is dominated by hydrocarbon monoterpenes (55,95%). The antibacterial effect shows that Gram-positive bacteria are the most sensitive to the inhibitory action of EO with inhibition zone diameters (DZI) ranging from 18 to 20 mm for <em>Staphylococcus aureus</em> and <em>Streptococcus faecium</em> strains. The same results were reported with the micro-atmosphere

scholarly journals Evaluation of some biological activities of phenolic compounds obtained from two Algerian medicinal plants: Mentha rotundifolia and Satureja calamintha

2020 ◽  
pp. 87-102
Author(s):  
Benfares Redhouane ◽  
Boudjema Khaled ◽  
Behlali Hadjira ◽  
Imedjdouben Imene ◽  
Kennas Abderrezak ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Medicinal Plants ◽  
Secondary Metabolites ◽  
Biological Activities ◽  
Plant Secondary Metabolites ◽  
Antimicrobial Properties ◽  
Antibacterial Activities ◽  
Microbial Strains ◽  
High Concentrations

In this work phytochemical characterization of two medicinal plants from Lamiaceae family, Mentha rotundifolia and Satureja calamintha, has been carried out. Extracts obtained with different solvents were screened for different plant secondary metabolites and were biologically characterized by defining their antiradical and antibacterial activities. Phytochemical screening of M. rotundifolia and S. calamintha confirmed their richness in different secondary metabolites. The determination of phenolic compounds revealed high polyphenols contents in water: methanol (30:70) extracts with concentrations of 20.64?1.74 mg EAG/g DW and 13.45?0.91 mg EAG/g DW for M. rotundifolia and S. calamintha, respectively. These extracts were also characterized by high concentrations of flavonoids (Mentha rotundifolia 12.33?1.58 mg EQ/g DW, Satureja calamintha 7.11?0.02 mg EQ/g DW). Furthermore, the water: methanol (30:70) extract of M. rotundifolia was the most effective in inhibiting free radicals. Recorded inhibition diameters for both plant samples and tested microbial strains ranged from 6.66 mm to 13.66 mm. Presented results confirmed that tested indigenous Algerian plants are favorable sources of polyphenols with antioxidant and antimicrobial properties.

scholarly journals Antimicrobial Effect of Hop Dosage in Beer

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Elena MUDURA ◽  
Anca ROTAR ◽  
Adriana PAUCEAN ◽  
Liana Claudia SALANŢĂ
Keyword(s):  
Antimicrobial Properties ◽  
Antimicrobial Effect ◽  
Antibacterial Action ◽  
Gram Positive ◽  
Gram Positive Bacteria

Hops are used for bitterness and aromatic flavours to beer, however certain compounds also possess antimicrobial properties. The iso-α-acids in particular possess strong antibacterial action against Gram positive bacteria. The experiments were done with four different iso-α-acids concentration and determination of total number of microorganism of wort

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