Simultaneous detection of Rutin, Quercetin, Gallic acid, Caffeic acid, Ferulic acid, Coumarin, Mangiferin and Catechin in Hepatoprotective commercial herbal formulations by HPTLC technique
Ramasamy Arivukkarasu*, Aiyalu Rajasekaran, Syed haffan bin hussain, Mohammed Ajnas
KMCH College of Pharmacy, Coimbatore, Tamilnadu, India
*Corresponding Author E-mail: phytoarivu@gmail.com
ABSTRACT:
The aim of the study is to detect simultaneously in single mobile phase the rutin, quercetin, gallic acid, caffeic acid, ferulic acid, coumarin, mangiferin and catechin in hepatoprotective commercial herbal formulations. HPTLC method was adopted to confirm the presence of these common secondary metabolites in the tested commercial herbal formulations. Results of the study clearly revealed the presence of rutin, quercetin, caffeic acid, ferulic acid, mangiferin responsible for hepatoprotective activity.The developed HPTLC method can be employed for the routine investigations of abov revealed markers in commercial herbal formulations.
KEYWORDS: Hepatoprotective, Rutin, caffeic acid,Mangiferin, Tefroliv, and Liv-52.
INTRODUCTION:
Standardization of herbal formulation in terms of raw materials, manufacturing practices and composition is important to ensure quality and optimum level of active principles for their bio potency [1]. Identification of major and unique compounds in herbs as markers and development of analytical methodologies for monitoring them are the key steps involved in marker based standardization. High performance thin layer chromatography (HPTLC) is a preferred analytical tool for fingerprints and quantification of marker compounds in herbal drugs due to its simplicity, high sensitivity, accuracy and less expensive [2]. Rutin prevented the CCl4-induced prolongation in pentobarbital sleeping time confirming its hepatoprotectivity [3].
Caffeic acid and quercetin, the well-known phenolic compounds widely present in the plant kingdom, were investigated for their possible protective effects against paracetamol and CCl4-induced hepatic damage. Paracetamol at the oral dose of 1 g/kg produced 100% mortality in mice while pretreatment of separate groups of animals with caffeic acid (6 mg/kg) and quercetin (10 mg/kg) reduced the death rate to 20% and 30%, respectively[4]. Ferulic is a phenolic compound possessing antioxidant, anticancer, and antiinflammatory activities. They have investigated the hepatoprotective effect of Ferulic acid against carbon tetrachloride (CCl4)-induced acute liver injury. Ferulic acid protects from CCl4-induced acute liver injury through reduction of oxidative damage and inflammatory signaling pathways[5]. With the above background we are plan to detect and quantify the hepatoprotective markers like rutin, quercetin ,caffeic acid, ferulic acid, and mangiferin in hepatoprotective commercial herbal formulations by HPTLC technique.No HPTLC method is reported in the literature for identification of phytoconstituents for the these selected commercial formulations and hence this paper describes detection and quantification of rutin, quercetin, caffeic acid, ferulic acid, and mangiferin in hepatoprotective commercial herbal formulations by HPTLC technique.
MATERIALS AND METHODS:
Collection of commercial herbal formulations for HPTLC screening:
Two formulations were procured from the market. Both the formulations were tablet dosage forms namely Liv -52 and Tefroliv forte tablets. The ingredients of two commercial herbal formulations are provided in Table 1. Organoleptic evaluation of formulations were carried out and tabulated in Table 2.
Table 1 Ingredients present in two selected formulations
|
Liv-52 |
Tefroliv forte |
|
Himsra (Capparis spinosa) |
Phyllanthus niruri |
|
Kasani (Chichoriumintybus) |
Tephrosia purpurea |
|
Kakamachi (Solanum nigrum) |
Eclipta alba |
|
Arjuna (Terminalia arjuna) |
Andrographis paniculata |
|
Kasamarda (Cassia occidentalis) |
Picrorhiza kurroa |
|
Biranjasipha (Achilleamille folium) |
Solanum nigrum |
|
Jhavuka (Tamarix gallica) |
Piper longum |
|
|
Terminalia chebula |
|
|
Ocimum sanctum |
Table 2: Organoleptic evolution and pH of formulations
|
Name of the formulation |
Colour |
Odour |
Nature of particles |
Taste |
pH of the 1% solution of formulation |
|
Liv 52 |
Brown |
Aromatic |
Fine |
Aromatic and mucilaginous |
6.1 |
|
Tefroliv forte |
Brownish green |
Aromatic |
Fine |
Aromatic and astringent |
5.8 |
Equipment: A Camag HPTLC system comprising of Linomat 5 applicator and Camag TLC scanner and single pan balance of Shimadzu model was used, for weighing the samples.
Chemicals and solvents: Rutin, gallic acid caffeic acid feulic acidvitexin,and mangiferin were procured from Sigma Chemical Company Inc., USA. Solvents for extraction were purchased from Qualigens fine chemical (P) limited Mumbai. HPTLC was carried out using Merck aluminium sheet coated with silica gel GF 254 (0.2 mm).
Preparation of standards and extracts from the commercial herbal Formulations:
One gram of the each formulation was taken and sonicated with 10 ml of methanol. Filtered and the filtrate solution was used for HPTLC analysis. Standard marker compounds were prepared using methanol to get a concentration 1 mg/1ml
Application of sample: The sample solutions were spotted in the form of bands of width 6 mm with a Hamilton 100 μl syringe on precoated plate 60 F254 (10 cm × 10 cm with 0.2 mm m thickness, E.Merck) using a Camag Linomat V applicator. The slit dimension was kept mm × 0.45 mm. Five μl of each sample and standard solutions were applied on to the plate.
Development: The chromatogram was developed in Camag glass twin -through chamber (10-10 cm) previously saturated with the mobile phase toluene: ethyl acetate: formic acid: methanol [3:6:1.6:0.4] for 10 min (temperature 25.2°C, relative humidity 40%). The migration distance was 80 mm. TLC plates were air dried with air dryer. Densitometric scanning was performed using Camag TLC Scanner ‑III at 254 nm and 366 nm operated by a Wincat software[7].
Detection:The plate was scanned at UV 254 and 366 nm using Camag TLC Scanner-3 and Linomat V. Rf value of each compound which were separated on plate and data of peak area of each band was recorded.
RESULTS AND DISCUSSION:
The following different solvent compositions were tried for monitoring the elution of components in herbal formulations [6]
Ethyl acetate:glacial acetic acid formic acid:water (100:3:3:28)
1. Ethyl acetate: Methanol: Water: Toluene (100: 13: 10: 13)
2. Chloroform: Ethyl acetate : Methanol (6: 4: 0.3)
3. Ethyl Acetate:Methanol :Water Toluene (100: 15.5: 13.5: 2)
4. Ethyl acetate: Methanol: Water (100:15.5:13.5)
Among the 5 mobile phases attempted, Toluene: ethyl acetate: formic acid: methanol in the ratio of 3:6:1.6:0.4 gave better elution for all the formulations tested and hence it was used as mobile phase for detection of constituents in herbal formulations. The optimized chamber saturation time for mobile phase was 3.0 min at room temperature (25 ± 1°C). The densitometric analysis was performed at 256 nm in reflectance mode [7].
The Rf values of the marker compounds were in the range of 0.09 to 0.79 (Fig 1, Fig 2 and Table 3).Liv-52 showed Rf values same as that of rutin 0.09, mangiferin 0.17 and caffeic acid 0.66 .Tefroliv forte showed Rf value equal to quercetin 0.56 and Ferulic acd 0.69 .The chromatogram of the Liv-52 and Tefroliv forte were shown in the Fig 3 to Fig 9. Catechin was absent in both the formulations. In the present paper the ideal method, first time we followed was simultaneously detection of standard markers rutin, quercetin, gallic acid, mangiferin and catechin present in hepatoprotective commercial herbal formulations by HPTLC technique.
Fig 1. TLC Profile methanol extracts of marketed and traditional
formulations at 254 nm.
1.Coumarin 2.Liv-52 3.Rutin gallic acid and Quercetin 4.Caffeic acid 5.Tefroliv forte 6.ferulic acid 7. Traditional formulation 8.mangiferin 9. Traditional formulation.
Fig 2. TLC Profile methanol extracts of marketed and traditional
formulations at 366 nm.
1.Coumarin 2.Liv -52 3.Rutin gallic acid and quercetin 4.caffeic acid 5.tefroliv forte6.ferulic acid 7.Traditional formulation 8.mangiferin 9.Traditional formulation
Fig 3 Chromatogram of commercial Formulation Liv -52 detection of caffeic acid
Fig 4.Chromatogram of commercial Formulation Liv -52 detection of rutin and mangiferin
Fig 5 Chromatogram of Commercial Formulation Tefroliv forte detection quercetin and ferulic acid.
Fig 6 Chromatogram of standard simultanoeus developed rutin,quercetin and gallic acid
Fig 7 Chromatogram of standard caffeic acid
Fig 8 Chromatogram of standard mangiferin and catechin
Fig 9 Chromatogram of standard ferulic acid
Table 3: Rf values of marker compounds and the constituents in commercial/traditional herbal formulations
|
Markers |
Marker Rf value |
Liv -52 |
Tefroliv forte |
Area of Marker |
Area of marker in sample |
Amount of marker present µg/ 5 µl |
Amount of Marker mg/ g |
% of marker in formulation |
|
Rutin |
0.09 |
0.09 |
----- |
9747.4 |
624.2 |
0.320 |
0.320 |
0.032% |
|
Mangiferin |
0.17 |
0.17 |
----- |
11543.9 |
3156.3 |
1.366 |
1.366 |
0.13% |
|
Quercetin |
0.56 |
----- |
0.56 |
13436.4 |
4140.5 |
1.54 |
1.54 |
0.15% |
|
Caffeic acid |
0.66 |
0.66 |
----- |
17187.3 |
3391.0 |
0.986 |
0.986 |
|
|
Ferulic acid |
0.69 |
----- |
0.69 |
24157.4 |
17113.4 |
3.542 |
3.542 |
0.35% |
CONCLUSION:
It can be concluded that rutin, mangiferin, quercetin and ferulic acid were simultaneously detected in the two commercial formulations. Presence of rutin, mangiferin and caffeic acid in Liv-52 and quercetin and ferulic acid in tefroliv forte and absence of coumarin gallic acid and catechin in both the formulation. The marker compound selected for detection was well established for hepatoprotective activity. The developed HPTLC method may be adopted for routine detection of rutin, quercetin, gallic acid, mangiferin ferulic acid ,caffeic acid and catechin in commercial formulations by simultaneous detection..
REFERENCES:
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Received on 07.04.2017 Modified on 11.07.2017
Accepted on 20.08.2017 ©A&V Publications All right reserved
Res. J. Pharmacognosy and Phytochem. 2018; 10(1): 59-62.
DOI: 10.5958/0975-4385.2018.00009.2