DESC:FIELD OF THE INVENTION
The present invention relates to hair care composition and more particularly relates to a hair care composition comprising hair oil and a plant part coated with a coating composition. Said hair care composition provides the benefits while retaining the fragrance and color of the composition and at the same time masking the odious nature of the plant part.

BACKGROUND OF THE INVENTION
Traditionally, vegetable oils like coconut oil, mustard oil, sesame oil likewise are used for nourishing the hair.

There are a lot of marketed products comprising the traditional hair oil with addition to essential oils and/or plant extracts to provide the benefits of natural actives. Most compositions comprise of a distinct mix of conventional ingredients combined in a uniquely proportionate manner.

The benefits of natural oils and plant extracts for hair have been well explored for several years. Lemon oil because of its antiseptic properties is an effective natural oil to help promote the healing of irritated scalp. Lemon oil used along with traditional hair oil such as coconut oil is reported to have antidandruff properties Chamomile extract is the most popular and widely-available extract used for hair nourishing and scalp conditioning. Chamomile extract soothes irritations, adds hair softness and gently disinfects the scalp. Fenugreek (methi) seeds are rich in folic acid, vitamin A, vitamin K and vitamin C, and are a storehouse of minerals such as potassium, calcium and iron. Fenugreek seeds also have high protein and nicotinic acid content, which are known to be beneficial against hair fall and dandruff and in treating a variety of scalp issues like dryness of hair, baldness and hair thinning. Jasmine and other floral extracts are reported for moisturizing benefits for hairs.
35A1
IN238735 discloses a hair oil composition comprising aqueous extract of guduchi, bringaraj, chembarathi flower, amalaki, dhurva, kumari, balapathram, parpatakam, yashti, anjanam, aswagnatha with coconut oil and perfume. Said hair oil composition enriches the growth of hair and protects the hair from various infections.

It is also well known in the prior-art to add essential oil or perfume to mask the odious nature of natural extracts. Similarly, Frank C RoiaJr. in Economic Botany, January 1966, Volume 20, Issue 1, pp 17-30 discloses essential oils have been used in all types of preparations to impart a desirable fragrance or to mask an unpleasant odor of some constituent.

Researchers intentionally choose the natural extracts or essential oil, so as to mask the odour of the plant part, which have other disadvantages such as dilution of natural actives, addition of fragrance cost in natural extract, processing cost for preparing natural extracts or essential oil such as decoction, extraction, purification, preservation and likewise.

While conducting the research to provide the benefits of natural actives researchers of current invention, surprisingly invented the way to use the plant part with the hair oil and masking the unpleasant odour of the plant part.

None of the prior arts particularly describe a composition for hair care that comprises a hair oil along with a plant part, wherein the plant part is coated with a coating composition to provide the fragrance stability.

Objects of the invention
One object of the present invention is to provide a hair care composition comprising a hair oil; and a plant part coated with a coating composition.

Still another object of the present invention is to coat a plant part with a coating composition so as to provide a controlled release of the herbal actives in the hair oil.

Still another object of the present invention is to coat a plant part with a coating composition to mask odour of the plant part and to retain the color and odour of the hair care composition.

Still another object of the present invention is to coat a plant part with a coating composition to provide the fragrance stability.

Still another object of the present invention is to coat a plant part with a coating composition to provide the microstability or environmental protection.

Further objects of the present invention will be clear from the following description.

BRIEF DESCRIPTION OF DRAWINGS
The above and other features, aspects, and advantages of the subject matter will be better understood with regard to the following description and accompanying drawings where:
Fig. 1 shows chromatogram of base oil
Fig. 2 shows chromatogram of the plant part infused hair oil (after 1st sampling-24 hr)
Fig. 3 shows chromatogram of the plant part infused hair oil (after 40 days)
Fig. 4 shows chromatogram of the herb extract infused oil (after 80 days, the sampling at end of consumption)

SUMMARY OF THE INVENTION
In one aspect of the invention there is provided a hair care composition comprising:
a) a hair oil; and
b) a plant part coated with a coating composition

According to an embodiment the plant part and the hair oil are present in the ratio of 1:500 to 5:1.

These and other features, aspects, and advantages of present subject matter will become better understood with reference to the following description. This summary is provided to introduce a selection of concepts in a simplified form. This summary is not intended to identify key features or essential features of the subject matter, nor is it intended to be used to limit the scope of the subject matter.

DESCRIPTION OF THE INVENTION
For convenience, the terms used herein have the meanings recognized and known to those of skill in the art, however, for convenience and completeness, particular terms and their meanings are set forth below.

The articles “a”, “an” and “the” are used to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article. The terms “comprise” and “comprising” are used in the inclusive, open sense, meaning that additional elements may be included. It is not intended to be construed as “consists of only”. Throughout this specification, unless the context requires otherwise the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated element or step or group of element or steps but not the exclusion of any other element or step or group of element or steps.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosure, the preferred methods, and materials are now described. All publications mentioned herein are incorporated herein by reference.

An embodiment of the present invention, provides a hair care composition comprising:
c) a hair oil; and
d) a plant part coated with a coating composition.

According to another embodiment, the plant part and the hair oil are present in the ratio of 1:500 to 5:1.

According to another embodiment, the plant part and the hair oil are preferably present in the ratio of 1:100 to 1:1 and more preferably 1:75 to 1:1.

According to another embodiment, the hair oil and the plant part are physically separated. The hair oil bottle comprises separate compartment for keeping the coated plant part. The consumer can withdraw the infused hair oil as required.

According to another embodiment, the hair oil and the plant part are in physical contact. The coated plant part is kept inside the hair oil bottle.

According to another embodiment, the hair oil is selected from, but not limited to, one or more of mineral oil, silicone oil, vegetable oil or combinations thereof.

According to another embodiment, the vegetable oil is selected from, but not limited to, one or more of coconut oil, sunflower oil, mustard oil, sesame oil, rice bran oil, canola oil, castor oil, other Indian vegetable oil etc.

According to another embodiment, the vegetable oil and mineral oil is present in the hair care composition in the range of 0.01 wt. % to 99.0 wt. %.

According to another embodiment, the vegetable oil or mineral oil is present in the hair care composition in the range of 0.01 wt. % to 99.0 wt. %.

According to another embodiment, the plant part is selected from, but not limited to, one or more of seed, herb, leaf, root, flower, stalk, fruit, fruit cover and dried part of a plant. Furthermore, the plant part can be grasses, spices, wood, resins, balsams, gums.

According to another embodiment, the seed is selected from, but not limited to, one or more of mustard seed, sesame seed (seed of Sesamum indicum), methi seed (Trigonella foenum-graecum), bottle gourd seed (seed of Lagenaria siceraria), kalonji seed (black seeds of Nigella sativa plant), flaxseed (seed of Linum usitatissimum), amla seed (seed of Phyllanthus Emblica) and neem seed (seed of Azadirachta indica) or combinations thereof.

According to another embodiment, the leaf is selected from, but not limited to, one or more of curry leaf (Murraya koenigii), neem (Azadirachta indica), basil (Ocimum basilicum), mint (Mentha), henna (Lawsonia inermis), bhringraj (Eclipta prostrata) and hibiscus (Hibiscus rosa-sinensis) or combinations thereof.

According to another embodiment, the root is selected from, but not limited to, one or more of vetiver (Chrysopogon zizanioides), jatamansi (Nardostachys jatamansi), licorice (Glycyrrhiza glabra) and vata-banayan (Ficus benghalensis) or combinations thereof.

According to another embodiment, the coating composition comprises a coating polymer and an excipient.

According to another embodiment, the coating polymer is selected from, but not limited to, hydrophilic polymers or hydrophobic polymers.

According to yet another embodiment, the coating polymer is may be the combination of hydrophilic and hydrophobic polymers.

Coating polymer can be hydrophilic and/or hydrophobic in nature or it could be water compatible or oil compatible in nature. Hydrophilic coating agents can be selected from, but not limited to, one or more of starch, cellulose, natural gum (such as xanthan guar etc.), synthetic polymer or co-polymer of acrylic acid, vinylpyrrolidone, vinyl alcohol, vinyl acetate, methacrylic acid and methyl methacrylic acids. Hydrophobic coating agents can be selected from, but not limited to, one or more of wax (such as bee wax, carnauba wax, micro-crystalline wax etc), natural vegetable and hydrocarbon based oils (such as medium chain tri-glyceride, coconut oil, sunflower oil, mineral oil etc.), natural or synthetic resins (such as rosin, shellac, melamine, novolac, resol, silicone resin etc.
According to another embodiment, the hydrophobic polymers are selected from, but not limited to, one or more of Iso-propyl myristate, bee wax, carnauba wax, micro-crystalline wax, shellac, melamine, novolac, resol and silicone resin.

According to yet another embodiment, the coating polymer is present in an amount of 0.05 wt. % to 10 wt. % of the plant part, preferably 0.5 wt. % to 6 wt. % of the plant part, most preferably 1.0 wt. % to 4 wt. % of the plant part.

According to yet another embodiment, the excipient can be Anti-oxidant, wherein it can be selected from, but not limited to, one or more of butylated hydroxytoluene, tert-butylhydroquinone, pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, tocopherol, vitamin C, vitamin E acetate, oryzanol etc. Anti-oxidant is present in an amount of 0.001 wt. % to 10 wt. % of the hair care composition, preferably 0.002 wt. % to 0.6 wt. % of the hair care composition.

According to yet another embodiment, excipients can be a preservative. Preservative can be selected from, but not limited to, one or more of propyl paraben, phenoxy ethanol, benzoic acid, sodium benzoate likewise. The preservatives are present in an amount of 0.0001 wt. % to 10 wt. % of the hair care composition, preferably 0.001 wt. % to 3 wt. % of the hair care composition

According to yet another embodiment, excipients can be selected from, but not limited to, one or more of fragrance, color, stabilisers etc. within the range of 0.00001 wt. % to 10.0 wt. %, most preferably 0.0001 wt. % to 3.0 wt. %.

According to another embodiment, tests are conducted for analyzing the fragrance stability and microstability of the coated plant part of the hair care composition.

According to another embodiment, the analysis of controlled release of natural actives from the plant part is studied.

According to another embodiment, the hair care composition can be exemplified as under:

Examples: The present invention is more particularly described in the following examples, that are intended as illustrations only, since numerous modifications and variations within the scope of the present invention will be apparent to those skilled in the art. Unless otherwise noted, all parts, percentages and ratios reported in the following examples are on weight basis and all reagents used in the examples were obtained or are available from the chemical suppliers.

Example-1: Working Examples
The following examples illustrate the versatility of the present invention. The hair care composition of present invention is contemplated by each of the examples tabulated below:

Example 1.1:
Category Ingredient Percentage wt. %
Hair oil Sunflower oil
Mineral oil 90 wt %
Q.S.
Anti-oxidant
(Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate)
Fragrance 0.01 wt. %

0.5 wt. %
Plant part Methi seeds coated with Micro crystalline wax (0.5 wt % of seed amount) 1 gm

Example 1.2:
Category Ingredient Percentage wt. %
Hair oil Sunflower oil
Coconut oil
Mineral Oil 5 wt. %
1 wt. %
Q.S.
Antioxidant (Tertiary butylhydroquinone)Fragrance 0.01 wt. %

0.5 wt. %
Plant part Two or more seeds- Mixture of Methi, Mustard, Sesame coated with Shellac, Anti-Oxidant and preservative (2% shellac, 0.06% of Tinogard TT, 0.1 % Propylparaben of Seed amount and 5% Polyvinyl Pyrrolidone of shellac amount) 80 gm

Example-2
Analysis of fragrance stability of the coated plant part of the hair care composition.
Fragrance stability data (sensorial evaluation 0 to 10 Scale, higher number indicates better fragrance profile):

Time Temperature Only Oil Oil with uncoated Seeds Oil with coated Seeds
Initial RT 10 10 10
After One Month REF 10 3.0
10
RT 10 5 10
38 °C 10 7 9.5
45°C 9 2 9

Example-3
Microbial Comparative studies with coated and uncoated plant parts:
Mix of Herbs was kept in the Plastic bottle at room temperature, 38 deg C, and 45 deg C, at humid condition (60 RH to 90 RH) for 6 months. Sample was analyzed for microbial count at the end of every month.
1. Weigh 10 g of herbs mix 90 ml of sterile saline solution in a sterile conical flask. This will be 1:10 dilution.
2. Mix the samples well by swirling the flask, Mix well for 10 mins for proper mixing.
3. Collect the solution for plating.
4. Sterile saline solution should be used as control; it should be always noted that there is no count in control plates

Result:
When the plant part is uncoated as per table no.1, the seeds prone to microbial growth after 1 week at 38 deg C.
However, when the plant part is coated with coating material, there is a reduction in the microbial growth as per table no. 2.
Further, as shown in table no.3, there is significant reduction in microbial count when the coated plant part is in the contact with hair oil.
Similarly, as per table no. 4 the coated plant part and hair oil are not in contact and kept separately in same bottle without contacting to each other also shows reduction in microbial count.

Table no. 1 Plant part (uncoated)
Category Ingredient Microbial Count (after 1 week at 38 deg C)
Plant part (uncoated) Sesame

Kalonji

Methi

Mustard TVC: 640 cfu/gm
Yeast & Mould: 130 cfu/gm

TVC: 3900 cfu/gm
Yeast & Mould: 70 cfu/gm

TVC: 100 cfu/gm
Yeast & Mould: <10 cfu/gm

TVC: 250 cfu/gm
Yeast & Mould: <10 cfu/gm

Table no. 2 Plant part (coated) Not in contact with hair oil
Category Ingredient Microbial Count (after 1 month at 38 deg C)
Plant part (coated) with Microcrystalline wax (4% wt.) Sesame

Kalonji

Methi

Mustard

Mixture of Sesame, Methi, Kalonji, Mustard, Dudhi TVC: <10 cfu/gm
Yeast & Mould: < 10 cfu/gm

TVC: <10 cfu/gm
Yeast & Mould: <10 cfu/gm

TVC: <10 cfu/gm
Yeast & Mould: <10 cfu/gm

TVC: <10 cfu/gm
Yeast & Mould: <10 cfu/gm

TVC: <1 cfu/gm
Yeast & Mould: <1 cfu/gm

Table no. 3 Hair oil and coated plant part in contact with each other.
Composition Ingredient Microbial Count (after 1 month at 38 deg C)
Hair Oil 50 % Coconut Oil + 10 % SFO + 0.05% TBHQ + 0.5% Fragrance
TVC: <1 cfu/gm
Yeast & Mould: <1 cfu/gm

Plant part (coated, as per example of 1.2) Mixture of Sesame, Methi, Kalonji, Mustard, Dudhi

Table no. 4 Hair oil is not in contact with coated plant part
Category Ingredient Microbial Count (after 1 month at 38 deg C)
Hair Oil 50 % Coconut Oil + 10 % SFO + 0.05% TBHQ + 0.5% Fragrance
TVC: <10 cfu/gm
Yeast & Mould: <10 cfu/gm

Plant part (coated with 2% Iso propyl Myristate)

Mixture of Sesame, Methi, Kalonji, Mustard, Dudhi

Example 4: Infusion study of plant parts into hair oil (controlled release of natural actives from the plant part)
Introduction: A mixture of 5 different Herbs (sesame, mustard, kalonji, dudhi and methi) coated with coating composition as per example 1.2, are used for the HPLC analysis. The seeds are kept in a specially designed cap in the top of the bottle. The cap has been designed in such a way that every time when product is poured from the cap, fresh oil from the bottle is replaced in the cap. Herbs were soaked in this oil till the next use and during this process of infusion (Hima), active principles from the herbs get extracted into the oil, thus enriching the oil.

Method of evaluation
Sampling: Enrichment of extracts from herbs into the oil was measured analytically through high performance liquid chromatography (HPLC). The experiment conducted was as follows:

The chromatogram of the base oil was taken (Fig.1). The hair oil was maintained in contact with plant parts and allowed for the infusion for 24 hrs. The hair oil sample was collected and subjected to HPLC analysis (Fig.2). After 48 hrs the next infused sample subjected to HPLC analysis. This experiment was continued till 40 days and infused hair oil sample was collected and recorded the chromatogram (Fig. 3), similarly after 80 days (Fig.4).
The individual plant part is infused with hair oil and compared the chromatogram with the sample i.e. coated plant part in hair oil.
Apparatus and equipment: HPLC with UV detector
Mobile phase A: -Dissolve 1.0 ml of Formic acid in 1000ml HPLC grade water and sonicate for 5-10 min.
Mobile phase B: - Dissolve mixture of Acetonitrile: Methanol: 0.1 % Formic acid (70: 30: 0.1) and sonic ate for 5-10 min.
Column: Phenomenex Luna (Part no. 00G-4041-E0) C18, (250cm *4.6 mm* 5-micron particle size) or equivalent
Flow rate: 1.0 ml/min.
Detector: UV /PDA
Wave length: 340 nm
Run time: 50 min
Injection Volume: 5 µl
Column Temperature: 50 Deg
Gradient program:
Time Mobile Phase-A Mobile Phase-B
0.01 60 40
2 60 40
20 0 100
40 0 100
45 60 40
50 60 40

By setting above chromatographic conditions allow to saturate the column with mobile phase until stable base line. Once the column gets saturated inject the blank solution i.e. methanol followed by standard solution and then sample and record the chromatograph and measure the response of the peak.

Reagents and materials: acetonitrile (HPLC grade), methanol (HPLC grade), water (HPLC grade), formic acid (AR grade).

Results: HPLC analysis showed that the plant part enriched oil showed peaks which were not present in the base oil. The new peaks in the HPLC chromatogram obtained (with coated plant part + oil) are highlighted. This proves that active components from the coated plant parts selectively gets extracted in the hair oil.
The hair care composition of present invention is not limited to the embodiments discussed herein and can be embodied by various modifications within the scope of the following claims. It should be recognized that the preferred embodiments described above are exemplary only. Certain modifications and improvements will occur to the person skilled in the art upon a reading of forgoing description. It should be understood that all such modifications and improvements have been deleted herein for the sake of conciseness and readability but are properly within the scope of the following claims.
,CLAIMS:WE CLAIM:

1. A hair care composition comprising:
a) a hair oil; and
b) a plant part coated with a coating composition.

2. The hair care composition as claimed in claim 1, wherein the plant part and the hair oil are present in the ratio of 1:500 to 5:1.

3. The hair care composition as claimed in claim 1, wherein the hair oil is selected from the group consisting of mineral oil, silicone oil and vegetable oil or combinations thereof.

4. The hair care composition as claimed in claim 3, wherein the vegetable oil is selected from the group consisting of coconut oil, sunflower oil, mustard oil, sesame oil, rice bran oil, canola oil and castor oil or combinations thereof.

5. The hair care composition as claimed in claim 1, wherein the hair oil is in the range of 0.01 wt. % to 99.0 wt. %.

6. The hair care composition as claimed in claim 1, wherein the plant part is selected from the group consisting of seed, herb, leaf, root, flower, stalk, fruit, fruit cover, dried part of a plant, grasses, spices, wood, resins, balsams and gums or combinations thereof.

7. The hair care composition as claimed in claim 6, wherein the seed is selected from the group consisting of mustard seed, sesame seed (seed of Sesamum indicum), methi seed (Trigonella foenum-graecum), bottle gourd seed (seed of Lagenaria siceraria), kalonji seed (black seeds of Nigella sativa plant), flaxseed (seed of Linum usitatissimum), amla seed (seed of Phyllanthus Emblica) and neem seed (seed of Azadirachta indica) or combinations thereof.

8. The hair care composition as claimed in claim 1, wherein the coating composition comprises a coating polymer and an excipient.

9. The hair care composition as claimed in claim 8, wherein the coating polymer is selected from the group consisting of hydrophilic polymers and hydrophobic polymers or combinations thereof.

10. The hair care composition as claimed in claim 8, wherein the coating polymer is selected from the group consisting of shellac, microcrystalline wax and iso-propyl myristate..

11. The hair care composition as claimed in claim 8, wherein the coating polymer is present in range of 0.05 wt. % to 10 wt. % of the plant part.

12. The hair care composition as claimed in claim 8, wherein the excipient is selected from the group consisting of antioxidant, preservative, fragrance, color, stabilizers in the range of 0.00001 wt. % to 10.0 wt. %.

13. The hair care composition as claimed in claim 1, wherein the hair oil and the plant part are physically separated.

14. The hair care composition as claimed in claim 1, wherein the hair oil and the plant part are in physical contact.