scholarly journals Influence of Polysaccharides from Aloe vera (Aloe barbadensis Miller, Liliaceae) on Mechanically Induced Cough in Cats

2010 ◽  
Vol 79 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Martina Šutovská
Keyword(s):  
Chemical Composition ◽  
Structural Properties ◽  
Statistical Evaluation ◽  
Biological Activities ◽  
Aloe Vera ◽  
Aloe Barbadensis ◽  
Cough Reflex ◽  
Antitussive Activity ◽  
Nylon Fibre ◽  
Cough Suppressant

Different plants have been reported to be a source of polysaccharides that possess a great variety of biological activities, including cough suppression. The experiments were aimed on the influence of two polysaccharides isolated from the gel (A, HF1-Z) and one from the epidermis (SL-1) of Aloe vera leaves, characterized by chemical composition and structural properties, on the cough reflex. The method of mechanically induced cough was used in conscious cats. A nylon fibre directed individually into the mucous area of the laryngopharyngeal and tracheobronchial airways via endotracheal cannula elicited the cough reflex. Statistical evaluation registered cough reflex indicators (number of cough efforts - NE, cough frequency - NE min–1 intensity of cough attacks during expiration and inspiration - IA+ and IA-, intensity of maximal inspiratory and expiratory cough efforts - IME- and IME+) showed that gel polysaccharide HF1-Z possessed higher cough-suppressing activity than dropropizine, a nonnarcotic peripheral cough suppressant. Their antitussive activity was accompanied mainly with a decrease of NE, IA+ and IA- from both laryngopharyngeal and tracheobronchial mucous areas of the airways. Results of the presented study also showed minimal influence of polysaccharide HF1-Z on expectoration predictor, IME- and IME+. New pharmacodynamic property of polysaccharides isolated from Aloe vera was shown during experiments, which could be a base of their possible therapeutic use in this indication in future.

scholarly journals Extract of Aloe vera (Aloe barbadensis Miller) Enhances the Growth, Protein Contents, and Gastrosomatic Index (GaSI) of Common Carp Cyprinus carpio

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Munu Khanal ◽  
Sirjana Lamichhane ◽  
Ajaya Bhattarai ◽  
Babita Labh Kayastha ◽  
Shyam Narayan Labh
Keyword(s):  
Common Carp ◽  
Large Scale ◽  
Biological Activities ◽  
Aloe Vera ◽  
Fish Growth ◽  
Economic Losses ◽  
Average Weight ◽  
Microbial Infection ◽  
Aloe Barbadensis ◽  
Soxhlet Apparatus

Aquaculture is a growing agribusiness, and large-scale microbial infection frequently leads to considerable economic losses, as there are very few approved drugs available to counteract such a problem. Aloe vera is a natural therapeutic plant with biological activities, for example, antimicrobial, anticancer, mitigating, and immunomodulatory properties. Thus, an experiment was conducted to understand the effects of dietary Aloe vera on survival, growth performance, protein utilization, gastrosomatic index, and gut histomorphological studies in common carp in laboratory conditions. Aloe vera leaves were collected, washed, shade-dried, and homogenized to get a filtrate, which was extracted in ethanol (70%) using the Soxhlet apparatus. The carp with an average weight of 1.73 ± 0.14 g was divided randomly into 5 treatments (control and other 4 treated groups) with the extract of 0.0%, 0.2%, 0.4%, 0.8%, and 1.6% in the diet with 3 replicates and the stocking density was 25 fish per each replicate. Sampling was done on the 30th, 60th, and 90th days, and the results show that percent weight gain, specific growth rate, protein efficiency ratio, and feed conversion efficiency were significantly high in the treated diet compared to the control (0.0%). Gastrosomatic index, condition factors, and gut histology found better performance in common carp group fed 0.4% and 0.8% of Aloe vera after 90 days. In conclusion, it was found that Aloe vera extract between the amount of 0.4% and 0.8% is better for fish growth for common carp.

Effect of temperature on structural properties of Aloe vera (Aloe barbadensis Miller) gel and Weibull distribution for modelling drying process

2010 ◽  
Vol 88 (2-3) ◽  
pp. 138-144 ◽  
Author(s):  
Margarita Miranda ◽  
Antonio Vega-Gálvez ◽  
Purificación García ◽  
Karina Di Scala ◽  
John Shi ◽  
...  
Keyword(s):  
Weibull Distribution ◽  
Structural Properties ◽  
Aloe Vera ◽  
Effect Of Temperature ◽  
Drying Process ◽  
Aloe Barbadensis

scholarly journals ALOE VERA AND ITS BIOLOGICAL ACTIVITIES

2021 ◽  
pp. 21-26
Author(s):  
Elseena Jose ◽  
Shilpa Joseph ◽  
Mariya Joy
Keyword(s):  
Biological Activities ◽  
Aloe Vera ◽  
Biological Properties ◽  
Biologically Active ◽  
X Rays ◽  
Skin Damage ◽  
Active Components ◽  
Aloe Barbadensis ◽  
Anti Cancer ◽  
Ancient Times

Aloe Vera is used for medicinal purposes since ancient times. The botanical name is Aloe barbadensis miller. It belongs to the Liliaceae family. It is also called the healing plant or the silent healer, because of its wound and burn healing properties. Latex and gel are the two basic products of Aloe leaves. The latex and gel contain biologically active components. Polysaccharides contained in the gel of the leaf attribute most of the health benefits associated with Aloe Vera. Aloe was available as pills, ointments, jellies, sprays, drinks, etc. The important application aloe Vera was wound healing, treating burns, anti-inflammatory, antidiabetic, anti-cancer, anti-ulcer, protection against skin damage from x-rays, lung cancer, intestinal problems, increasing HDL, reducing LDL, reducing blood glucose in diabetics, fighting against acquired immune deficiency (AIDS), allergies, etc. The aloe Vera plant, its biological properties are briefly reviewed in this article.    

scholarly journals Influence of high hydrostatic pressure on quality parameters and structural properties of aloe vera gel (Aloe barbadensis Miller)

2012 ◽  
Vol 51 (10) ◽  
pp. 2481-2489 ◽  
Author(s):  
Antonio Vega-Gálvez ◽  
Margarita Miranda ◽  
Yissleen Nuñez-Mancilla ◽  
Purificación Garcia-Segovia ◽  
Kong Ah-Hen ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Structural Properties ◽  
High Hydrostatic Pressure ◽  
Aloe Vera ◽  
Quality Parameters ◽  
Aloe Barbadensis ◽  
Aloe Vera Gel

Comparative Analysis of In-Vitro Biological Activities of Methyl Eugenol Rich Cymbopogon khasianus Hack., Leaf Essential Oil with Pure Methyl Eugenol Compound

2020 ◽  
Vol 21 (10) ◽  
pp. 927-938 ◽  
Author(s):  
Roktim Gogoi ◽  
Rikraj Loying ◽  
Neelav Sarma ◽  
Twahira Begum ◽  
Sudin K. Pandey ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Biological Activities ◽  
Methyl Eugenol ◽  
Dpph Assay ◽  
Pure Compound ◽  
Allium Cepa Assay ◽  
Anti Inflammatory ◽  
Lemongrass Essential Oil

Background: The essential oil of methyl eugenol rich Cymbopogon khasianus Hack. was evaluated and its bioactivities were compared with pure methyl eugenol. So far, methyl eugenol rich essential oil of lemongrass was not studied for any biological activities; hence, the present study was conducted. Objective: This study examined the chemical composition of essential oil of methyl eugenol rich Cymbopogon khasianus Hack., and evaluated its antioxidant, anti-inflammatory, antimicrobial, and herbicidal properties and genotoxicity, which were compared with pure compound, methyl eugenol. Material and Methods: Methyl eugenol rich variety of Cymbopogon khasianus Hack., with registration no. INGR18037 (c.v. Jor Lab L-9) was collected from experimental farm CSIR-NEIST, Jorhat, Assam (26.7378°N, 94.1570°E). The essential oil wasobtained by hydro-distillation using a Clevenger apparatus. The chemical composition of the essential oil was evaluated using GC/MS analysis and its antioxidant (DPPH assay, reducing power assay), anti-inflammatory (Egg albumin denaturation assay), and antimicrobial (Disc diffusion assay, MIC) properties, seed germination effect and genotoxicity (Allium cepa assay) were studied and compared with pure Methyl Eugenol compound (ME). Results: Major components detected in the Essential Oil (EO) through Gas chromatography/mass spectroscopy analysis were methyl eugenol (73.17%) and β-myrcene (8.58%). A total of 35components were detected with a total identified area percentage of 98.34%. DPPH assay revealed considerable antioxidant activity of methyl eugenol rich lemongrass essential oil (IC50= 2.263 μg/mL), which is lower than standard ascorbic acid (IC50 2.58 μg/mL), and higher than standard Methyl Eugenol (ME) (IC50 2.253 μg/mL). Methyl eugenol rich lemongrass EO showed IC50 38.00 μg/mL, ME 36.44 μg/mL, and sodium diclofenac 22.76 μg/mL, in in-vitro anti-inflammatory test. Moderate antimicrobial activity towards the 8 tested microbes was shown by methyl eugenol rich lemongrass essential oil whose effectiveness against the microbes was less as compared to pure ME standard. Seed germination assay further revealed the herbicidal properties of methyl eugenol rich essential oil. Moreover, Allium cepa assay revealed moderate genotoxicity of the essential oil. Conclusion: This paper compared the antioxidant, anti-inflammatory, antimicrobial, genotoxicity and herbicidal activities of methyl eugenol rich lemongrass with pure methyl eugenol. This methyl eugenol rich lemongrass variety can be used as an alternative of methyl eugenol pure compound. Hence, the essential oil of this variety has the potential of developing cost-effective, easily available antioxidative/ antimicrobial drugs but its use should be under the safety range of methyl eugenol and needs further clinical trials.

Chemical composition and biological activities of Valeriana dioscoridis SM. Roots

2021 ◽  
Vol 141 ◽  
pp. 306-312
Author(s):  
Burcu Sen-Utsukarci ◽  
Sonja M. Kessler ◽  
Ozlem Akbal-Dagistan ◽  
Alden S. Estep ◽  
Nurhayat Tabanca ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Biological Activities

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.

Microscopy of Eugenia involucrata, Chemical Composition and Biological Activities of the Volatile Oil

2021 ◽  
Author(s):  
Wagner D’Almeida ◽  
Luciane Mendes Monteiro ◽  
Vijayasankar Raman ◽  
Junaid Ur Rehman ◽  
Katia Sabrina Paludo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Biological Activities ◽  
Volatile Oil
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