Int J Curr Pharm Res, Vol 9, Issue 1, 70-74Original Article



a,bDepartment of Biochemistry, Regenix Super Speciality Laboratories, Chennai, Tamilnadu, India, cHead of the Department, Department of Biochemistry, Regenix Super Speciality Laboratories, Chennai, Tamilnadu, India, dConsultant, Lab Services, Apollo Hospital, Chennai, Tamilnadu, India

Received: 23 Sep 2016, Revised and Accepted: 15 Nov 2016


Objective: The main objective of this study is to standardise and evaluate traditional formulation both qualitatively and quantitatively on the basis of organoleptic characteristics, physical characteristics, physiochemical properties and phytochemical screening.

Methods: Traditional formulation (TF) containing seven traditionally used herbs were collected from local areas and market. The plants were washed, air-dried and coarsely powdered. The aqueous extract was prepared as per literature, and various physiochemical, phytochemical screening was done.

Results: The organoleptic character shows the drug with greenish colour, slightly bitter taste and characteristic odour. The physiochemical properties show the appropriate pH and the solubility of TF. Secondary metabolites like phenolic compounds and flavonoids are present abundantly in aqueous extract than in other extracts.

Conclusion: Our studies suggests that TF contains medicinally important secondary metabolites which has disease protective properties. This study will help in the progression of a suitable monograph, determining the quality and purity of a crude extract and laying down pharmacopoeia standards for the formulation.

Keywords: Traditional formulations, Organoleptic character, Physiochemical, Phytochemical screening.


The quality assessment of herbal formulations is of vital importance in order to justify their acceptability in the modern system of medicine. Herbal formulation is usually prepared with the combinations of individually extracted single herbs to get the benefit of synergism or to prevent side effect arising from the chief herb. One of the major problems faced by the herbal industry is the unavailability of rigid quality control profiles for herbal materials and their formulations [1]. Regulatory bodies have laid down the standardisation procedures and specifications for Traditional Siddha formulation [2]. India transpires as the major country and plays the lead role in the production of standardised, therapeutically effective traditional formulations in the world market. The World Health Organization (WHO) has appreciated the importance of medicinal plants for public health care in developing nations and has evolved guidelines to support the member states in their efforts to formulate national policies on traditional medicine and to study their potential usefulness including evaluation, safety, and efficacy. Quality evaluation of herbal preparation is a fundamental requirement of industry and other organisation dealing with Siddha and herbal product [3]. The process of standardisation can be achieved by stepwise pharmacognostic and phytochemical studies.

Phytochemicals are natural and non-nutritive plant bioactive chemical compounds that have protective or disease preventive properties against external stress and pathogenic attack [4]. Nowadays, traditional medicinal practices form an integral part of complementary or alternative medicine. The plant-derived phytochemicals with therapeutic properties could be used as a single therapeutic agent or as combined formulations in drug development [5]. The choice of technique depends largely on the solubility properties and volatilities of the compounds to be separated. The phytochemical investigation ofa plant may involve extraction of plant materials, phytochemical screening, separation and isolation of the constituents, characterization of the isolated compounds [6]. Liver has a pivotal role in the maintenance of normal physiological process through its multiple and diverse functions, such as metabolism, secretion, storage and detoxification of a variety of drugs. It is exposed to a wide variety of xenobiotic, hepatotoxins and chemotherapeutic agents that lead to damage and subsequent impairment of its function.

Therefore herbal and other indigenous sources have been adequately explored for the safe and effective hepatoprotective action. In the absence of reliable liver protective drugs in modern medicine, in India, a number of medicinal plants and their formulations are used to cure hepatic disorders in traditional systems of medicine [7]. There are numerous plants and traditional formulations available for the treatment of liver diseases. Treating liver diseases with botanical drugs has a long tradition, but evidence for efficacy is sparse. Moreover, synthetic drugs available in the market may cause serious side effects. To pursue scientific proof, the present work is designed and screened with the seven medicinal plants, which were used traditionally for treating liver disorders.


Plant materials

Traditional siddha formulation consists of 7 ingredients, viz., Curcuma longa Terminaliachebula, Terminaliabelerica, Emblicaofficinalis, Sp hagneticolacalendulacea Phyllanthusamarusand Cuminumcyminum. These plants have antibacterial, hepatoprotective, antihepatotoxic, uterine and intestine stimulating properties. These plants have been referred from the text “Gunapadam”first edition, 1936 (Siddha Materia Medica) written by Vaidya Ratnam K. S. Murugesa Mudaliar [8]. All these plant parts were procured from the field and local market and were authenticated from Siddha Central Research Institute, Arumbakkam, Chennai.

Preparation of traditional formulation (TF)

The formulation was prepared as per the Traditional Siddha System of medicine. All the ingredients were powdered separately, passed through 100 # sieve and then mixed together in equal proportions to get uniformly blended formulations.10g of TF was boiled in 500 ml of distilled water for 1 hour. Filtrate was evaporated to dryness under vacuum at 50 °C-55 °C using a rotatory evaporator under reduced pressure. The yield of the preparation of TF was 5.3g. Evaporated extracts were reconstituted in water [9].

Standardization properties

The various standardisation parameters studied were organoleptic properties, Physiochemical investigations, determination of pH, Fluorescence analysis, Preliminary Phytochemical analysis, and determination of moisture content, viscosity, surface tension and density, determination of physical characteristics of the powder formulation.

Organoleptic evaluation

Organoleptic evaluation refers to evaluation of the formulation by color, odour, taste, texture, etc. The organoleptic characters of the samples were evaluated based on the method described by Siddiqui et al. [10].

Physico-chemical investigations

Physico-chemical investigations of formulations were carried out, including the determination of extractive values and ash values [11-12].

Moisture content

An accurately weighed 1g of traditional formulation powder was taken in a tarred glass bottle. The crude drug was heated at 105 °C in an oven till a constant weight was obtained. Percentage of the moisture content of the sample was calculated with reference to the air-dried drug. Moisture content was determined by loss on drying method (LOD). The technique has been accepted as an official method for evaluation by various pharmacopoeias. One gramme of the TF was taken and kept for 24 h in a graduated, stoppered cylinder, in contact with the water up to the mark of 20 ml. After 24 h the increase in volume was noted.

Determination of Ash values

(i) Determination of total ash

Accurately weighed 2g of traditional formulation powder was added in a crucible at a temperature of 400-600 °C in a muffle furnace till carbon-free ash was obtained. It was calculated with reference to the air-dried drug.

(ii) Determination of acid insoluble ash

Ash above obtained, was boiled for 5 min with 25 ml of 1M Hydrochloric acid and filtered using an ashless filter paper. Insoluble matter retained on filter paper was washed with hot water and filter paper was burntin a muffle furnace. The percentage of acid insoluble was calculated with reference to the air-dried drug.

(iii) Determination of water soluble ash (WSA)

Ash was boiled for 5 min with 25 ml of water. The insoluble matter was collected in a Gooch crucible or on an ashless filter paper, washed with hot water and ignited for 15 min at a temperature not exceeding 450 °C. The weight of insoluble matter was subtracted from the weight of the ash, the difference in weight represented the water-soluble ash. The percentage of water-soluble ash was calculated with reference to the air-dried drug.

(iv) Determination of pH

1% solution of Polyherbal formulation was prepared in distilled water and pH was determined using digital pH meter [table 3].

Fluorescence analysis.6 Fluorescent characteristics of powdered plant material with different chemical reagents were determined under ordinary and ultraviolet light according to the procedure of Kokoshi et al. [13-14].10 mg of the formulation was taken in a glass slide and treated with various reagents for the presence of their fluorescence characteristics under ultra‐violet lamp at 254 and 366 nm.

Determination of physical characteristics

Determination of viscosity and density

Density, surface tension and viscosity of the 1% aqueous traditional formulation was estimated.

Bulk density

It is the ratio of given mass of powder and its bulk volume. It is determined by transferring an accurately weighed amount of powder sample to the graduated cylinder with the aid of a funnel. The initial volume was noted. The ratio of the weight of the volume it occupied was calculated [15].

Bulk density=W/V0 g/ml

Where, W = mass of the powder, V0 = untapped volume

Tapped density

It is measured by transferring a known quantity (25g) of powder into a graduated cylinder and tapping it for a specific number of times. The initial volume was noted. The graduated cylinder was tapped continuously for a period of 10-15 min. The density can be determined as the ratio of the mass of the powder to the tapped volume.

Tapped volume= W/Vf g/ml

Where, W = mass of the powder, Vf = tapped volume.

Compressibility index

It is the propensity of the powder to be compressed. Based on the apparent bulk density and tapped density the percentage compressibility of the powder can be determined using the following formula.

Compressibility index = [(V0-Vf)/V0] x 100,

Or % Compressibility = [(tapped density–bulk density)]/tapped density] x 100

Hausner ratio

It indicates the flow properties of the powder. The ratio of tapped density to the bulk density of the powder is called Hausner ratio.

Hausner ratio= Tapped density/bulk density.

Preliminary phytochemical analysis

A successive extraction of TF was carried out with different solvents such as hexane, ethyl acetate, methanol, ethanol and water (non-polar to polar). The extract was subjected to preliminary phytochemical screening of various plant constituents according to Kokate [16].

Quantitative determination of total phenolic, flavonoid and alkaloid content

Total phenol determination

The total phenolic content was estimated using the modified Folin Ciocalteu photometric method with Gallic Acid as standard [17]. To 0.1 ml of aqueous extract of TF in a test tube added 3.9 ml of distilled water and 0.5 ml of Folin Ciocalteu reagent and incubated at room temperature for 5 min after which 2 ml of 20% sodium carbonate was added to it and kept in boiling water bath for 10 min. Phenol reacts with the phosphomolybdic acid in the Folin Ciocalteu reagent in alkaline medium and produces a blue coloured complex which is read at 650 nm. The total phenolic content is expressed as Gallic acid equivalents (GAE) per g of dry weight (DW). The experiments performed thrice and the results shown in table 7.

Total alkaloid determination

The total alkaloid content was determined according to UV-Spectrophotometer method [18].1g of TF was weighed into a 50 ml beaker and dispersed into 40 ml of 10% acetic acid solution in ethanol. The filtrate was then evaporated to one-quarter of its original volume on a hot plate. Concentrated ammonium hydroxide was added dropwise in order to precipitate the extract. The whole solution was allowed to settle and the precipitate was collected and washed with dilute ammonium hydroxide and then filtered. The residue is the alkaloid which was dried and weighed.

Total flavonoid determination

Total flavonoid content was determined by the spectrophotometric method. 1 ml of TF extract and a standard solution of rutin was added to 10 ml volumetric flask containing 4 ml of distilled water. To this 0.3 ml of 5% NaNo2 was added. After 5 min, 0.3 ml of 10% AlCl3, 2 ml of 1 M NaOH was added and the total volume was made up to 10 ml with distilled water. The solution was mixed well, and the absorbance was measured against prepared reagent blank at 510 nm. The value of optical density was used to calculate the total flavonoid content against the different concentration of standard rutin. The flavonoid content was expressed in terms of rutin (mg of RU/g of dried weight DW)[19,20]. The experiments performed thrice and the results shown in table 7.

Total tannin determination

The total tannins were estimated by the Folin Dennis method. 100ul of TF extract was made up to 10 ml with distilled water. To this 1 ml of Folin Denis reagent and 2 ml of Sodium carbonate was added. The absorbance was read at 700 nm after 30 min. Water was used as a blank instead of the sample. The calibration curve was obtained for different concentration of standard tannic acid. The quantity of the tannins present in the aqueous extract of the samples was calculated as mg equivalent of Tannic acid (TA) [21]. The experiments performed thrice and the results shown in table 7.


Traditional formulation (TF) was subjected to a various analytical procedure to validate the physical and physiochemical properties of the drug. The composition of the traditional siddha formulation was shown in table 1.

Organoleptic assessment

Table 2 shows the organoleptic character of the drug with greenish color, slightly bitter taste and characteristic odour.

Physiochemical properties

Physiochemical properties of the drug like LOD, ash content, water-soluble extractive, acid insoluble extractive content and pH were found to be within pharmacopeial limits as shown in table 3.

Physical characteristics

A physical characteristic feature of the drug like density, surface tension, viscosity is shown in table 4.

Fluorescent analysis

In the present study dried powder treated with various reagents showed characteristic fluorescence at 254 nm and 366 nm wavelength as shown in table 5.

Preliminary phytochemical screening

Primary Phytochemical screening is evaluated qualitatively in different solvent extraction is shown in table 6 and secondary metabolites like total phenol, flavonoid, tannin and alkaloid evaluated quantitatively which are helpful in predicting their therapeutic properties as shown in table 7. However, aqueous extract was found to show positivity to a maximum number of phytochemical constituents.

Table: 1 Composition of Traditional Formulations

S. No. Plants Family Parts used
1. Curcumina longa Zingiberaceae Rhizome
2. Phylanthusamarus Phyllanthaceae Whole plants
3. Wedeliachinensis Asteraceae Whole plants
4. Terminaliachebula Combretaceae Pericarp
5. Terminaliabellirica Combretaceae Fruits
6. Embellicaofficinalis Euphorbiaceae Fruits
7. Cuminiumcyminum Apiaceae Seeds

Table 2: Organoleptic properties of traditional formulation

Appearance Powder
Color Greenish brown
Odour Characteristic
Taste Slightly bitter
Particle size 100# sieve
Texture Fine

Table 3: Physiochemical characteristics of traditional formulation

S. No. Parameter Percentage
Loss on drying (LOD) (w/w %) 11%
Water soluble extractive (w/w %) 42.6%
Alcohol soluble extractive 18.6%
Ash content (w/w %) 10.4%
Acid insoluble ash (w/w %) 3.4%
Water Soluble ash (w/w %) 8.2%
Moisture content 6.7%
pH 6.2

Table 4: Physical characteristics

S. No. Parameter Value
1. Density 0.99
2. Viscosity 1.00cp
3. Bulk density 0.474g/ml
4. Tapped density 0.582g/ml
5. Carr’s compressibility Index 18.556
6. Hausner’s ratio 1.227

Table 5: Fluorescence analysis

Formulation Visible light UV-Short 254 nm UV-Long 366 nm
TF Greenish brown Brown Dark brown
TF+Petroleum ether Dull yellow Dark brown Black
TF+Chloroform Pale yellow Faded brown Yellowish brown
TF+Ethyl acetate Pale yellow Brownish yellow Yellowish brown
TF+Acetone Light yellow Yellow Dark yellow
TF+Ethanol Yellowish brown Dark yellow Black
TF+Water Greenish brown Dark brown Dark brown
TF+Conc. H2SO4 Dark brown Greenish Brown Dark brown
TF+Conc. HCl Greenish brown Dark green Black
TF+1N NaOH Reddish Brown Dark green Black
TF+Ammonia Greyish brown Greenish brown Brackish brown

Table 6: Preliminary phytochemical analysis

S. No. Phytoconstituents Test name Hexane









1. Carbohydrates

Fehlings test

Benedict test

Molisch test
















2. Proteins and amino acids

Millon’s test

Biuret test

Ninhydrin test
















3. Reducing sugars Molisch test - - + + ++
4. Saponins Froth test + + - - -
5. Alkaloids

Mayers test

Wagners test

- + + + ++
6. Tannins

Ferric chloride test

Lead acetate test











7. Flavanoids Zinc chloride test - - + ++ +++
8. Triterepenes Chloroform test - - ++ + -
8. Anthraquinones Borntragers test + + - - -
9. Steroids Salkowski test + + ++ + +
10. Fixed oil and fats - + ++ + +
11. Mucilage and gums Alcoholic ppt. test + - - - -
12. Cardiac glycosides Keller-kilianitest - - - + ++
13. Starch Iodine test - - - + +

+++: Intense; ++: Moderate; +: Slight; ‐: Absent

Table 7: Quantitative analysis of secondary metabolites

S. No. Bioactive compounds Quantity
1. Flavanoids 7.1+0.14 mg of RU/g of DW
2. Alkaloids 2.9+0.09 mg/g of DW
3. Total Phenols 6.5+0.12 mg of GA/g of DW
4. Tannins 4.8+0.07 mg of TA/g of DW

*Values are means of triplicate determination+Standard deviation.


In recent years there are numerous medicinal plants and traditional formulations available for the treatment of many complicated diseases. Traditional Siddha formulation consists of 7 ingredients, viz., Curcuma longa Terminaliachebula, Terminaliabelerica, Emblicaofficinalis, Sphagneticolacalendulacea, Phyllanthusamarus and Cuminumcyminum. These plants have antibacterial, hepato-protective, antihepatotoxic, uterine and intestine stimulating properties. Quality evaluation of formulations is a fundamental requirement of mankind. The process of standardisation can be achieved by stepwise pharmacognostic studies. The organoleptic assessment provides the simplest and quickest means to establish the identity and thereby ensure the quality of a particular sample and these features are useful in judging the material totally and in powder form [1]. The organoleptic character of the formulation shows greenish colour, slightly bitter taste and characteristic odour. Physico-chemical constants like ash value, water soluble extracts, alcoholic extracts, losson drying and pH values were determined as per method described in Indian Pharmacopoeia [2].

Ash value depends upon the inorganic substances present in the particular formulation. This may be useful in standardising the drugs. The ash value of formulation is 10.4%. The acid insoluble ash value of the drug denotes the amount of siliceous matter in the plants. The quality of the drug is better if the insoluble acid value is low. It is 3.4 % for formulation. Loss on drying indicates the total volatile content and moisture content of the formulation. High moisture content may affect the quality of drug and the less value of moisture content could prevent bacterial, fungal or yeast growth [12]. This formulation shows a loss on drying at 105 C of 11% and moisture content of 6.7%. The percentage of soluble constituents present in the drug is determined by the value of water and alcohol extractive. These values correlate with the metabolic reaction of the drug and helps in evaluating crude drugs [15]. The pH of 1% aqueous solution is 6.2 and found to be suitable for human use.

Bulk characterization is necessary to avoid misleading predictions of solubility or stability which depends on a particulate flowability of granules or powder. Bulk density and tapped density is useful for determination of packing of powder material. The bulk density and tap density of Traditional formulation (TF) were found to be comparable, and variation was insignificant as shown in table 4. Hausner’s ratio was related to winter particulate friction and could be used to predict powder flow properties. It showed that powder with low inter-particulate friction, had a ratio of approximately 1.22 whereas less free flowing powder such as flakes have Hausner’s ratio greater than 1.6. This shows that the formulation powder has low winter particulate friction. The percentage compressibility of powder is Carr’s index, a direct measure of a potential powder arch or bridge strength and stability [15]. If percentage compressibility is in the range of 28%-35% it shows fluid, cohesive powder, in our study, the percentage compressibility of formulations indicates that formulations are less cohesive.

The fluorescent characteristic of powdered drug plays a vital role in the determination of quality and purity of the drug material. Some constituents show fluorescence in the visible range in daylight. The ultraviolet light produces fluorescence in many natural products which do not visibly fluorescence in daylight. If substance themselves are not fluorescent, they may often be converted into fluorescent derivatives or decomposition products by applying different reagents [13]. Hence crude drugs are often assessed qualitatively in this way and it is an important parameter for pharmacognostic evaluation of crude drugs.

Medicinal plant extracts are reported to have health beneficial properties that are due to secondary metabolites such as phenolics, flavonoids, glycosides, alkaloids, tannins, saponins, anthraquinones, etc., present in them. These bio-components are known for their versatile biological effects and are implicated in the treatment of a variety of diseases. The screening of phytochemicals in TF was clearly validated in this study. Aqueous extract of formulation shows the adequate presence of phyto-constituents than the alcohol and methanol extract.

Flavonoids and Total phenols are abundantly present in the aqueous extract of TF. The flavonoids and phenolic compounds reported exerting multiple biological effects including antioxidant, free radical scavenging abilities, anti-inflammatory, anti-carcinogenic activity. Phenolics are one of the major largest and most ubiquitous groups of plant metabolites that can be found ubiquitously in certain plants [16], which are considered as bioactive and non-nutritional compounds, due to their antioxidant properties, against free radicals effects that exhibit various significant biological activities. Flavonoids are hydroxylated phenolic substances known to be synthesised by plants in response to microbial infection and they have been found to be antimicrobial substances against a wide array of microorganism in vitro [18]. They are also an effective antioxidant and exhibit stronger anticancer, cardiovascular activities. Flavonoids are capable of treating certain physiological disorder and diseases [19]. Tannins are considered as superior antioxidants as they prevent cellular damages by shielding the proteins from oxidation and glycation reactions, besides their copper scavenging action [20]. The soothing effect of tannins on vascular segments indicates their protective effect in hepatocellular complications [21]. Alkaloids have been shown to exhibit a cytotoxic effect on tumour cell lines emphasising its role in the prevention of cancer, neurodegenerative diseases, chronic inflammation, etc [22].


The present investigation is carried out to meet the requirements of WHO and other regulatory bodies concerning standardisation of natural origin products on the same pattern as synthetic drugs. The present studies show that organoleptic character, physiochemical and physical properties of traditional formulations falls within the permissible limits as per WHO. The therapeutic potential of the formulation may be due to the presence of various phytochemicals present in the aqueous extract. Further studies are to be carried out with different analytical and biochemical parameters and also by in vivo methods.


Declared none


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How to cite this article

  • Sri Kamatchi Priya Ramamoorthy, Diwakar Manickam, Samu Subramaniam, Shyama Subramaniam. Standardisation and phytochemical screening of traditional formulation. Int J Curr Pharm Res 2017;9(1):70-74.

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Traditional formulations, Organoleptic character, Physiochemical, Phytochemical screening.





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International Journal of Current Pharmaceutical Research
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Authors & Affiliations

Sri Kamatchi Priya Ramamoorthy
Department of Biochemistry, Regenix Super Speciality Laboratories, Chennai, Tamilnadu, India

Diwakar Manickam
Department of Biochemistry, Regenix Super Speciality Laboratories, Chennai, Tamilnadu, India

Samu Subramaniam
Head of the Department, Department of Biochemistry, Regenix Super Speciality Laboratories, Chennai, Tamilnadu, India

Shyama Subramaniam
Consultant, Lab Services, Apollo Hospital, Chennai, Tamilnadu, India


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