Formulation Development and Evaluation of Polyherbal Mouthwash
Manish Yadav, Karuna Bhalsane, Snehal Borse, Hindavi Gujarathi, Mehul Rasal,
Vaibhav. G. Bhamare*
K.K. Wagh College of Pharmacy, Hirabai Haridas Vidyanagari Panchavati, Nashik-422003.
*Corresponding Author E-mail:
ABSTRACT:
Altered lifestyle and habits has created problems in oral hygiene and similarly gained wide attention towards polyherbal mouthwash. Overcoming the side effects of chemical-based mouthwash, herbal mouthwash is potentially popular in maintaining oral health. This article focuses on utilising the significant antiplaque, antibacterial and antimicrobial properties of few herbs in formulation development ofpolyherbal mouthwash formulation. The aqueous extracts mixed in appropriate proportion keeps the formulation alcohol free. The various test results of physicochemical and microbial evaluation confirms the desired activity of prepared formulation making it effective in oral hygiene.
KEYWORDS: Polyherbal mouthwash, Alcohol free, Aqueous extracts, Antimicrobial, Antiplaque.
1) INTRODUCTION:
Oral hygiene is crucial for maintaining good oral health and preventing various oral diseases. Maintaining oral hygiene involves various practices such as brushing, flossing, and using mouthwash1. Mouthwash is a popular oral care product that is used for freshening breath, reducing plaque and gingivitis, and promoting overall oral health.
Conventional mouthwashes contain various synthetic chemicals that may have adverse effects on the oral microbiome and the environment2. Therefore, there is an increasing demand for herbal mouthwashes that are safe and equally effective3. Polyherbal formulations have gained attention in recent years due to their multiple therapeutic benefits and minimal side effects. Polyherbal mouthwash formulations are composed of several herbal extracts that provide a synergistic effect and improve overall oral health4.
Various herbs such as meswak, myrrh, clove, thyme, neem, peppermint and tea tree have been traditionally used for oral care due to their antibacterial, antifungal, and anti-inflammatory properties5,6,7. This article focuses on significant use of various herbs and their potential antimicrobial effect to maintain the oral hygiene.
2) PLANT PROFILE:
Table 1: Plant profile of selected herbs8-11
|
Sr.No. |
Common Name |
Scientific name |
Family |
Plant part used |
Chemical Constituents |
Uses |
|
1. |
Meswak |
Salvadorapersica |
Salvadoraceae |
Twig |
Salvadorine, flavonoids |
Antiplaque |
|
2. |
Myrrh |
Commiphoramyrrha |
Burseraceae |
Resin |
α-, β- and γ- Commiphoric acids |
Wound Healing |
|
3. |
Clove |
Syzygiumaromaticum |
Myrtaceae |
Flower bud |
β-caryophyllene |
Antibacterial |
|
4. |
Thyme |
Thymus vulgaris |
Lamiaceae |
Leaf, stem |
Thymol |
Anti-inflammatory |
|
5. |
Stevia |
Stevia rebaudiana |
Asteraceae |
Leaf |
Stevioside, rebaudioside |
Sweetening agent |
|
6. |
Lemon |
Citrus limon |
Rutaceae |
Fruit |
Phenolic acid |
Antioxidant |
3) MATERIALS AND METHODS:
3.1 Collection of Plant Powders:
Roots, twigs, and stem of Salvadora persica (Meswak), buds of Eugenia caryophyllus (clove), reddish-brown dried sap a thorny tree Commiphora Abyssinia (myrrh), Thymus vulgaris (thyme), leaves of Rebaudiana Bertoni (stevia) and Citrus limon (lemon oil) purchased from online and local market of Nashik.
3.2 Formulation of Herbal Mouthwash:
The selection of herbs was made, keeping in mind the anti-microbial efficacy along with their efficacy along with their excipient’s properties namely, preservative, sweetening, and flavoring effects, which are required to develop an ideal mouthwash.
Table 2: Master formula of Polyherbal Mouthwash
|
Sr. No |
Ingredients |
Botanical names |
Role |
Quantity (ml) |
|
1. |
Meswak |
Salvador persica |
Antiplaque |
30 |
|
2. |
Myrrh |
Commiphoramyrrha |
Wound Healing |
20 |
|
3. |
Clove |
Syzgiumaromaticum |
Antibacterial |
20 |
|
4. |
Thyme |
Thymus vulgaris |
Anti-microbial |
15 |
|
5. |
Stevia |
Rebaudiana Bertoni |
Sweetening agent |
10 |
|
|
Pomegranate |
|
|
|
|
6. |
Lemon oil |
Citrus limon |
Flavoring agent, |
q.s. |
Formulation Table:
We had prepared four different formulations with different quantities of herbs in each formulation. The quantities of the herbs were decided on the basis of a literature review and also the minimum concentration of herbs at which they exhibit their desired properties.
Table 2: Four different formulations of polyherbal mouthwash
|
Sr. No |
Ingredients |
F1 (ml) |
F2 (ml) |
F3 (ml) |
F4 (ml) |
|
1. |
Meswak |
25 |
30 |
25 |
30 |
|
2. |
Myrrh |
25 |
20 |
25 |
20 |
|
3. |
Clove |
20 |
20 |
20 |
20 |
|
4. |
Thyme |
10 |
15 |
10 |
15 |
|
5. |
Stevia |
10 |
10 |
10 |
10 |
|
6. |
Pomegranate peel |
10 |
5 |
- |
- |
|
7. |
Lemon oil |
- |
- |
10 |
5 |
1. A 20gm weighed quantity of each ingredient was taken.
2. The powdered herb was taken mixed with a 200ml quantity of water.
3. Then it is kept for incubation for 72 hours at 37°C.
4. After 72hours the mixture is removed and mixed properly in an appropriate proportion desired for our formulation.
5. Finally preservative added and the product will be packed in an attractive, well-closed container14-16.
Development of formulation and evaluation was the continuous process. Several characteristic issues like fungal growth on storage, strong aromatic odourwere observed and to rectify the same several combinations were tried in formulation.
3.3 Preparation of extract:
The Aqueous extract of each plant material was prepared using incubation method12,13 where the powder sample is soaked in sterile distilled water and maintained in Incubator at 37°C for 72hours. The herbal extracts were filtered using Whatman filter paper, washed with 10ml of sterile distilled water, and pressed.
4) EVALUATION:
4.1 Organoleptic Evaluation:
Table 3: Organoleptic evaluation for Herbal Mouthwash
|
Evaluation parameter |
Observation |
|
Colour |
Brown |
|
Odour |
Strong, spicy, citrus odor |
4.2 pH:
With the help of calibrated pH meter, the differences and variability in pH of formulation was calculated. The pH of formulation was found to be 6.7 which is suitable for use in oral cavity.
4.3 Viscosity:
Brookfield viscometer was used to measure the viscosity of formulation. Viscosity was calculated using Spindle no. 61 at 50rpm and it was found to be 1.92 CP.
4.3 Stability testing:
We have formulated the same formulation after a time period of 3 months for checking its efficacy over a period of time and have done all physicohemical tests on it and was in the desired range of the parameters. Both the samples has shown same pH, viscosity and potent anti-microbial activity.
So, we can conclude from here that our formulation is effective over a 3 month period of time.
Furthermore, more evalaution can be done after a period of 6 or 9 or 12 months to check its stability.
4.4 Anti-microbial testing:
The Polyherbal Mouthwash we have developed has been evaluated for checking its effectiveness of anti-microbial activity. The use of natural antimicrobials may contribute incontrolling the disordered growth of oral microbiota, thus overcoming problems caused by species resistant to conventional antimicrobials.
4.4.1 Method:
i. Pure strains of E. coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcusaureus ATCC 25923, Candida sp. were used.
ii. The medium which was used to study was nutrient agar. The Agar well diffusion technique was used for determining the Minimum inhibitory concentrations (MIC).
iii. The minimum inhibitory concentration (MIC) was used to evaluate the inhibitory effects of herbal mouthwash.
iv. The test standard used were Gentamycin and Nystatin against herbal mouthwash.
v. The plates were incubated at 37°C overnight and the zone of inhibition of growth was measured in millimetres.
vi. The antimicrobial activity of the mouthwash with different test standard was screened by Agar well diffusion technique and the zone of inhibition was measured in mm diameter. The images of the zone of inhibition are given in the figure no 1.
Figure 1: Zone of Inhibition
5) RESULT AND DISCUSSION:
5.1 Evaluation parameter results:
Based on the marked characterization it has been observed that the Pomegranate content in formulation 1 and 2 has led to fungal growth in the formulation whereas replacement of pomegranate content by the lemon oil has resolved the issue. The lemon oil incorporated in the formulation has developed strong aromatic odor to the formulation which is then rectified by managing the proportions of Meswak and lemon oil. On the basis of all evaluation test so performed it is concluded that the formulation 4 is effective, stable and safe.
|
Sr No. |
Parameters |
Evaluation |
|
1. |
Color |
Brown |
|
2. |
Odor |
Strong, spicy, citrus odor |
|
3. |
pH |
6.30 |
|
4. |
Viscosity |
1.92cp |
|
5. |
Foam Index |
250 |
|
6. |
Antimicrobial activity |
No Zone of inhibition |
5.2 Antimicrobial activity report:
The sample F4 were continued to the anti-microbial test where the comparative assessment was also made amongst the formulation which is freshly prepared, the formulation stored over the period of 4 months. The formulation is assessed against the standard antimicrobials like Gentamycin and Nystatin. The observations so made are tabulated below.
Table 5: Antimicrobial activity Report
|
Sample |
E. coli ATCC 25922 |
Pseudomonas aeruginosa ATCC 27853 |
Staphylococcus aureus ATCC 25923 |
Candida sp. |
|
F4 stored for 4 months |
No zone |
No zone |
No zone |
No zone |
|
Freshly preparedF4 |
No zone |
No zone |
No zone |
No zone |
|
Gentamycin |
28 mm. |
29 mm. |
28 mm. |
– |
|
Nystatin |
– |
– |
– |
21 mm. |
Figure 2: Polyherbal Mouthwash
6) CONCLUSION:
The findings of tests are evident to conclude that the combination of herbs is accurate and suitable to use as mouthwash. The antiplaque, wound healing, antibacterial, anti-inflammatory and analgesic properties in formulation helps to solve the oral health issues. The aqueous extract helps to sustain the formulation as alcohol free.
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Received on 30.09.2023 Modified on 27.03.2024
Accepted on 03.07.2024 ©AandV Publications All Right Reserved
Res. J. Pharma. Dosage Forms and Tech.2024; 16(3):229-232.
DOI: 10.52711/0975-4377.2024.00036