Authors :
James Akomeah Yeboah
Volume/Issue :
Volume 9 - 2024, Issue 8 - August
Google Scholar :
https://tinyurl.com/2bvu9rzp
Scribd :
https://tinyurl.com/bdept6yt
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24AUG1701
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
Acemannan is said to be the biologically active
substance in aloe vera (Aloe barbadensis). Many
producers of aloe products utilize inadequate production
and extraction methods, resulting in aloe products that
contain little or no acemannan. This article outlines a
systematic procedure for extracting the bioactive
polysaccharide compound from the aloe plant. This paper
also provides a description of the physical distinctive
features of acemannan. The study also emphasized the
determination of physical properties, such as the pKa and
Log P values, of acemannan. The physical characteristics
were used to evaluate the bioavailability and
hydrophilicity of this chemical. The primary approach
used to acquire these physical characteristics involves the
extraction of acemannan from aloe vera, the creation of
phosphate buffer with varying pH levels, the separation of
acemannan between chloroform and buffer using the
shake flask technique, and the utilization of
spectrophotometric analysis. Chloroform was used as a
representation of the lipid membrane in the experiment,
whereas phosphate buffer was utilized to symbolize the
blood. A buffer solution was used to maintain a steady pH
at a desired value. The acemannan compound had a pKa
value of 4.82 at a pH of 3.45, indicating its acidity.
Additionally, the Log P value (chloroform/buffer) was
determined to be -3.282, indicating its hydrophobicity.
Thus, it was deduced that acemannan exhibited
hydrophilic properties throughout the gastrointestinal
system.
References :
- AAPS NEWSMAGAZINE, (2007). Ionization Constant (pKa) And Partition Coefficient (Octanol-Water System). p 1-19.
- Aniade L. N., (2008). Current Methodology for the Assessment of ADME Properties on Drug Candidate Molecules. p 97-110.
- Ashish, S. K., (2007). Determination Of pKa’s Of Hydroxamic Acids by Nucleophilic Substitution Reaction. Indian Journal of Chemistry. p 1630-1634.
- Donkor M-D., (2011). Principles of medicinal chemistry. Ghana. Faculty of Applied Sciences, Department Of Applied Chemistry And Biochemistry Navrongo, University For Development Studies, (Unpublished).
- Hamman, J. H., and Viljoen, A. M., (2008). Use of Aloe vera for increasing the bioavailability of poorly absorbable drugs. Patent application 01542.
- Harris, C., Pierce. K., King. G., Yates. K. M. and Hall, J., (1991). Efficacy of acemannan in treatment of canine and feline spontaneous neoplasm. p 207- 213.
- Jane Davis, (1997). Aloe Vera a mission discovered. p 1-2.
- Johnson. A. R, White A.C., and Mcanalley. B. H., (1989). Comparison of common topical agents for wound treatment: Cytotoxicity for human fibroblast in culture. Wounds: a compendium of clinical Research and Practice, p 18-19.
- Kaliszan, T., (2001). ‘Gradient HPLC in the determination of drug lipophilicity and acidity, p 1465-1475.
- Kev, A. N., and Can, A., (1999). Separation and some properties of Aloe vera leaf pulp lectins. p 13 and 489.
- Lee, J. K., Lee M. K., Yun Y. P., Kim, Y., and Lee, C. K., (2001). Acemannan purified from Aloe vera induces phenotypic and functional maturation of immature dendritic cells Int. Immunopharmacol.
- Mcanalley, B. H., (1989). Patent No. WO 89/06539. U.S.A.
- McDaniel, H. R., (1987). In vitro studies on polymannoacetate (Carrisyn) for antiviral effect. American Society of Clinical Pathologists Scientific Assembly, New Orleans.
- Ràfols, C., Bosch, E., Ruiz R., Box, K. J., Reis, M., (2012). Acidity and Hydrophobicity of Several New Potential Antitubercular Drugs: Benzimidazole Derivatives. J. Chem. Eng. Data. p 330–338.
- Sanjivanjit, K., (2010). Lipophilicity descriptors: Understanding when to use Log P and log D advanced chemistry development. p 1-4. Canada
- Sarfaraz, K. N., (2007). ‘Handbook of reformulation Chemical, Biological, and Botanical Drugs’ Infomation Health care U.S.A. p 1-439.
- Savva, M., (2010). Partition Phenomenon. Long Island University, college of Pharmacy and health sciences, U.S.A.
- Singer, J., (1993). A randomized placebo-controlled trial of oral acemennan as an adjunctive to anti-retroviral therapy in advanced HIV disease. Ninth International AIDS Conference. p 28-53.
- Sung, C. K., (2002). The history of Aloe. In Y. I. Park, & S. K. Lee, NEW PERSPECTIVE ON ALOE. p 7-13.
- Turner C. E., Williamson D. A, Stroud P. A., Tally D. J., (2004). Evaluation and comparison of commercially available Aloe Vera L. products using size exclusion chromatography with refractive index and Multi-angle laser light scattering detection. International Immunopharmacology. p 1727-1737.
- Yakugaku, Z., (2003). Anti inflammatory constituents, aloesin and aloemannan in Aloe species. p 1-4.
- Yulia, B., (2008). Aloe and your heath. p 1-25.
Acemannan is said to be the biologically active
substance in aloe vera (Aloe barbadensis). Many
producers of aloe products utilize inadequate production
and extraction methods, resulting in aloe products that
contain little or no acemannan. This article outlines a
systematic procedure for extracting the bioactive
polysaccharide compound from the aloe plant. This paper
also provides a description of the physical distinctive
features of acemannan. The study also emphasized the
determination of physical properties, such as the pKa and
Log P values, of acemannan. The physical characteristics
were used to evaluate the bioavailability and
hydrophilicity of this chemical. The primary approach
used to acquire these physical characteristics involves the
extraction of acemannan from aloe vera, the creation of
phosphate buffer with varying pH levels, the separation of
acemannan between chloroform and buffer using the
shake flask technique, and the utilization of
spectrophotometric analysis. Chloroform was used as a
representation of the lipid membrane in the experiment,
whereas phosphate buffer was utilized to symbolize the
blood. A buffer solution was used to maintain a steady pH
at a desired value. The acemannan compound had a pKa
value of 4.82 at a pH of 3.45, indicating its acidity.
Additionally, the Log P value (chloroform/buffer) was
determined to be -3.282, indicating its hydrophobicity.
Thus, it was deduced that acemannan exhibited
hydrophilic properties throughout the gastrointestinal
system.