Total phenolic and flavonoid content of membrane processed Aloe vera extract: a comparative study
2018
Muthukumaran, P. | Divya, R. | Indhumathi, E. | Keerthika, C.
The aim of the study was to compare the total phenolic and flavonoid contents of membrane processed Aloe vera extract. In ultrafiltration studies, both transmembrane pressure (tmp) of 0.2,0.4, 0.6 and 0.8 bar and membrane molecular weight cut-off (MWCO) of 10 and 30 kDa membranes were employed in this research work. In preliminary phytochemical screening, phenols, tannins, saponin, flavonoids, steroids, terpenoids were qualitatively analyzed. Based on presence of flavonoid and phenolic content in aqueous – methanolic extract were used for further study. Results indicate that, In phytochemical evaluation, 10 kDa MWCO, total phenolic content range from 0.07 and 0.03 mg Gallic acid equivalent (GAE)/g. similarly, 30 kDa MWCO total phenolic content range from 0.05 – 0.027 mg GAE/g at 0.2 – 0.8 tmp. In case total flavonoid content, 0.05 – 0.01 mg quercetin/g in 10 kDa MWCO, 0.033 - 0.013 mg quercetin/g in 30 kDa MWCO respectively. Moreover, uniqueness of these study is, In the field of phytochemical quantification, there is no reports available in this membrane processed A. vera extract.
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