Aloe vera which is also known as Aloe barbadensis Miller,is a plant that is commonly used for medicinal purposes and as treatments for various health issues. It produces two substances; gel and latex, which are used for commercial household products, halal food and cosmetics. Aloe gel is the clear, jelly-like substance found in the inner part of the Aloe leaf while Aloe’s yellow latex comes from the peel. Aloe vera is able to provide therapeutic effects such as wound healing, anti-inflammatory, antioxidant, laxative and antimicrobial properties. The objective of this study was to
investigate the extracts via spectrophotometry (λ = 200 – 400 nm) and liquid chromatography. After 21 days, the ultraviolet spectra showed the evidence of the water molecules interactions and the hydroxyl groups in hydroalcoholic extracts. Significant peaks were also observed in the chromatograms. Further studies evaluating the stability of A. vera extracts should be carried out.
The phytochemicals and biological properties of Mangifera species are documented. The main
constituents of M. pajang include gallic, p-coumaric and ellagic acids. The fruits of M. pajang possess
antioxidant, antibacterial and anticancer properties. The phenolic is mentioned as the compound that
is responsible for the antioxidant property of M. pajang. In this study, the methanolic extraction of M.
pajang and M. indica was performed. Based on thin layer chromatography (TLC), the presence of the
phenolics in the samples could be confirmed. Comparative TLC was accomplished and the retention
factor (Rf) of pyrogallol was recorded as 0.85. From the result, the TLC profiling of M. pajang and M.
indica extracts were almost similar. In addition, the compounds of M. pajang extracts were analyzed
from the 1H-Nuclear Magnetic Resonance (NMR) spectroscopy. A mixture of ascorbic acid and a
sugar moiety could be detected. On the other hand, the NMR signal for the metabolite of mangiferin
was not observed. Therefore, the compound might not present in the sample.