Grape Skin Extract
Nans Products is a leading manufacturer and exporter of high-quality Grape Skin Extract in India. Our Grape Skin Extract is known for its rich anthocyanin content, offering a range of applications in the food, beverage, and cosmetic industries.
Grape Skin Extract is soluble in water and water/alcohol mixtures but not in fats and oils. Its color properties are highly dependent on pH levels, displaying a range of colors from red to blue-red, purple, steel blue, gray-green, to dull yellow as pH increases from 1 to 13. Optimal color intensity and stability are achieved at a pH of 1 to 3.5. However, the colorant is prone to oxidation in aqueous solutions and is unstable to UV and visible light exposure.
The extract is more stable in products with high sugar concentrations due to reduced water activity, making it ideal for use in jam, jelly, and fruit canning processes. Spray-dried powders with water activity below 0.3 can remain stable at room temperature for over a year. Low sugar levels in high water content products can accelerate breakdown, and the presence of fructose increases browning faster than glucose or sucrose.
Studies have shown that doubly acylated anthocyanin mixtures, which are more stable to light, heat, and oxidation, are preferable. Sources of these anthocyanins include purple carrot, elderberry, red cabbage, and red radish, which are now commercially available from Nutra Food Ingredients.
Our Grape Skin Extract is ideal for use in water-based acidic beverages, jellies, candy, gelatin desserts, skincare and hair care products, dry mixes, dark chocolate, and cake mixes.
Frequently Asked Questions
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What is Grape Skin Extract?
Grape Skin Extract is derived from the skins of grapes and is rich in anthocyanins, which are powerful antioxidants. It is used in various industries for its colorant properties and health benefits.
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What are the solubility properties of Grape Skin Extract?
Grape Skin Extract is soluble in water and water/alcohol mixtures but not in fats and oils. It is best used in acidic products with a pH of 4 or below.
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How does pH affect the color of Grape Skin Extract?
The color of Grape Skin Extract changes with pH levels, ranging from red to blue-red, purple, steel blue, gray-green, to dull yellow as the pH increases from 1 to 13. The best color intensity and stability are achieved at a pH of 1 to 3.5.
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What factors affect the stability of Grape Skin Extract?
Grape Skin Extract is unstable to UV and visible light exposure, and its color can degrade with long-term heating. High sugar concentrations can provide a protective effect, while low sugar levels in high water content products can accelerate breakdown.
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What are the applications of Grape Skin Extract?
Grape Skin Extract is used in water-based acidic beverages, jellies, candy, gelatin desserts, skincare and hair care products, dry mixes, dark chocolate, and cake mixes due to its colorant properties and antioxidant benefits.
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How does Grape Skin Extract perform in different sugar environments?
High sugar concentrations help stabilize Grape Skin Extract, reducing water activity and prolonging shelf life. Conversely, low sugar levels in high water content products accelerate breakdown, with fructose causing browning faster than glucose or sucrose.
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What advancements have been made in improving the stability of anthocyanins in Grape Skin Extract?
Doubly acylated anthocyanin mixtures have been found to exhibit better stability to light, heat, and oxidation compared to mono-acylated anthocyanins from grape skins. Other sources of these stable anthocyanins include purple carrot, elderberry, red cabbage, and red radish.