Abstract
Background: High-performance thin-layer chromatography (HPTLC) was developed and validated for the determination of aloe-emodin in accordance with ICH guidelines. In addition, a novel RP-UHPLC method was developed, and both methods were used to analyse the herbal extract and herbal formulation.
Methods: Separation was carried out on a silica gel 60 F254 HPTLC plate using the mobile phase Toluene: Methanol (9:1). The linearity was good across the 800-4000 ng/spot range. Validation results are within acceptable limits. The percent RSD for accuracy was 0.58-1.77, and precision was 1.10-1.97 and 1.45-1.94 for intraday and interday, respectively. The percentage of aloe-emodin found in the herbal extract and aloe vera capsule was 99.83 ± 1.19 and 99.53 ± 1.29, respectively, using this method.
Results: Quantification of aloe-emodin in herbal extract and herbal formulation were done using a novel UHPLC method with chromatographic conditions of orthophosphoric acid Methanol (0.1 percent OPA): Water (65:35, v/v) and pH 3, a flow rate of 1.2 ml/min, and elute detection at 254 nm. At 6.32 minutes, a sharp and symmetric peak was observed. The method developed was validated in accordance with ICH guidelines. The percent RSD numerical value of accuracy was 0.304-0.576, and the inter-day and intraday precision were 0.32-3.08 and 0.51-2.78, respectively. Herbal extract and aloe vera capsule were analysed using the new UHPLC method. Aloe-emodin percentages were reported as 100.3 ± 0.89 and 99.53 ± 1.29, respectively.
Conclusion: The antimicrobial and anti-oxidant activities of an aloe-vera herbal formulation were studied, and the results were positive.
Graphical Abstract
[http://dx.doi.org/10.3389/fphar.2013.00177] [PMID: 24454289]
[http://dx.doi.org/10.1080/10408690490424694] [PMID: 15116756]
[http://dx.doi.org/10.1002/jsfa.10650] [PMID: 32643805]
[http://dx.doi.org/10.1080/10590500600614303] [PMID: 16690538]
[http://dx.doi.org/10.1002/ptr.6532] [PMID: 31680350]
[http://dx.doi.org/10.1002/ptr.2458] [PMID: 18570273]
[http://dx.doi.org/10.4103/0973-1296.90414] [PMID: 22262936]
[http://dx.doi.org/10.1111/j.1365-2036.2004.01874.x] [PMID: 14987320]
[http://dx.doi.org/10.4103/0250-474X.174994] [PMID: 26997709]
[http://dx.doi.org/10.5402/2012/609095]
[http://dx.doi.org/10.1155/2017/1963908]
[http://dx.doi.org/10.1016/j.jpba.2008.03.011] [PMID: 18440751]
[http://dx.doi.org/10.1016/j.jpba.2010.01.018] [PMID: 20138726]
[http://dx.doi.org/10.3390/molecules22111838] [PMID: 29076992]
[http://dx.doi.org/10.1007/s10337-011-2023-5]
[http://dx.doi.org/10.1080/08982104.2020.1849279] [PMID: 33183121]
[http://dx.doi.org/10.4103/2230-973X.147230] [PMID: 25599030]
[http://dx.doi.org/10.2174/156720181206151228113209] [PMID: 25751659]
[http://dx.doi.org/10.1007/s12221-015-1012-y]
[http://dx.doi.org/10.3390/molecules27041450] [PMID: 35209242]
[http://dx.doi.org/10.1093/jaoac/91.6.1265] [PMID: 19202785]
[http://dx.doi.org/10.4103/2229-4708.90358] [PMID: 23781452]
[http://dx.doi.org/10.4061/2011/684369]
[http://dx.doi.org/10.1016/j.jtusci.2015.11.004]
[http://dx.doi.org/10.1016/j.jtusci.2016.10.004]
[http://dx.doi.org/10.1016/j.jpha.2012.01.010] [PMID: 29403757]
[http://dx.doi.org/10.1093/chromsci/bmt123] [PMID: 23978770]
[http://dx.doi.org/10.4103/0972-0707.97949] [PMID: 22876011]
[http://dx.doi.org/10.3389/fphar.2021.633921] [PMID: 34140888]
[http://dx.doi.org/10.1163/1568567053146823]
[http://dx.doi.org/10.1371/journal.pone.0086804] [PMID: 24466247]