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Raw material colors:- PPT/PDF


Subject:- herbal drug Technology

Semester:- 6th sem

Course:- Bachelor of Pharmacy B Pharmacy

       Subject Code: BP603T

Subject Title: Herbal drug Technology

            • Raw materials

            • Colors

                          Raw materials

At the end of the session, student will be able to

• Identify suitable colors for preparing herbal cosmetics

• Explain the various natural colors available for formulating


                    Raw materials - colors

• Nature –various colors – ancient man

• Later – used as cosmetics –dying the hairs, painting lips and faces,

 coloring food, pharmaceutical and textile products

• Colorant : Substances added to cosmetics products to colour the

 product and /or to impart color to the skin and /or its appendages

• Colour – an dye, pigment or other substance that can impart colour

 toa food, drug or cosmetics or to the human body
                     Raw materials - colors

• Colored compounds – chromogen or bear chromophores - absorbs

 light in near UV region

• Pigments or colors – present – cell sap – anthocyanin (bright red/

 blue color), flavonoids, anthroquinone, napthoquinone, carotenoids,

 indigoids, benzopyrone derivatives and diaryl heptanoids

                      Raw materials - colors

• Synthetic dyes – toxic

• Natural dyes – food colorants – approved as food and medicinal dyes

                        Raw materials - colors
                    Annatto - carotenoids

Biological source: Dried seeds – Bixa orellana

Family : Bixaceae

Physical properties: Yellow orange in color

Soluble in alcohol, ether, insoluble in water

Chemical constituents: oleo resin – Bixin (yellow colored carotenoid) – 2.5%

                    Raw materials - colors
                Annatto - carotenoids

Uses: coloring agent – cosmetics, food, beverages

                     Raw materials - colors

Biological source: Green leaves of higher plants and green algae (


• Mixture of 4 pigments – Chlorophyll a (blue black)

                      Chlorophyll b (Green black)

                        Carotene (Orange red)

                        Xanthophyll (Yellow)
                     Raw materials - colors


Physical properties: Soluble in organic solvent, Slightly soluble in


Uses: Coloring agents – soaps, oils and cosmetics

Raw materials - colors

Biological source: Dried female insects Dactilopius coccus

Family : Coccidae

Production: Bugs –collected – autumn –protected winter

• Killed –immersion in hot water or exposure to hot sun

• Natural exposure - sun – good quality and variety of dye

Raw materials - colors
• Heating - sun –color changes to purplish black color – black grains

• Burning – sulphur and charcoal fumes –develop purple grey color –

 black grains

• Tubular glands - surface – wax

Chemical constituents: 10 % anthroquinone dye – Carminic acid , 10%

 fat, 2% wax

Raw materials - colors

• Uses: Coloring agent – cosmetics, drug, liquid and solid food

Raw materials - colors
                  Henna (Lawsonia)

Biological source: Dried leaves – Lawsonia inermis

Family : Lythraceae

Chemical constituents: Lawsone – 2,5 – diOH-1,4-naphthoquinone (orange


Uses: Hair dye

     Along with dihydroxy acetone –sunscreen agent

Raw materials - colors

 Raw materials – colors

                  Curcumin - Turmeric

Biological source: Bright yellow coloring material obtained from

 the rhizomes of Curcuma longa

Family : Zingiberaceae

Solubility: soluble – ethanol, acetic acid

Insoluble – water, ether

Raw materials – colors

     Uses: Food colouring agent

Raw materials - colors

Biological source: Carthamin is a natural red pigment derived from

 safflower, Carthamus tinctorius

Family : Asteraceae
Uses: It is used as a dye and a food coloring. As a food additive, it is
 known              as           Natural            Red             26.
 Carthamin was used as a dye in ancient Egypt. It was used
 extensively in the past for dyeing wool for the carpet industry in
 European countries

Raw materials - colors

Raw materials - colors
                 Crocin (Saffron)

Biological source: Golden yellow – orange carotenoid pigment

 obtained from the dried stigmas and upper parts of styles of Crocus


Family : Iridaceae

Solubility: Soluble in hot water and insoluble in absolute alcohol

Uses : Food colourant
Raw materials - colors

 Raw materials - colors
                      Capsanthin (Paprika)

Biological source: Red colour carotenoid pigment obtained from

 the fruit of Capsicum annum

Family : Solanaceae

Constituents: Carotenoid - Capsanthin

Uses: Coloring agent for food, pharmaceutical, cosmetics and


 Raw materials - colors
                            Lutein (Tagetus)

Biological source: Yellow orange colour carotenoid pigment

 obtained from the flower of Tagetus erecta

Family : Compositae

Uses: Coloring agent for food, pharmaceutical

Used as additive of chicken feed to give colour to egg yolks

 Raw materials - colors
                            Betanin (Beet root)

Biological source: Red glycoside obtained from the beet root,

 Beta vulgaris

Family :

Uses: Coloring agent for ice cream,

powdered soft drink beverages, soups, in some

sugar confectionery


• Colorant : Substances added to cosmetics products to colour

 the product and /or to impart color to the skin and /or its


• Natural pigments

Thank You