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How to obtain kale extract?

How to obtain kale extract?

Kale, or curly cabbage, is a skin ally. Its content of calcium, vitamins A, C, and K, combined with its richness in antioxidants, makes it an active ingredient suitable for slowing down signs of aging, among other things. Discover how to obtain the extract of this plant.

Introduction to kale.

Kale belongs to the large family of common cabbages or Brassicaceae. There are several varieties, including black kale, curly kale, or Russian red kale. This plant is recognized by its large purple, pale green, or dark leaves, and its smooth or curly texture, depending on the variety.

Here are its main features:

  • Latin name: Brassica oleracea;

  • Family: Brassicaceae;

  • Treated parts: leaves;

  • Active ingredients: proteins, omega 3-6-9, and antioxidants.

Method of obtaining liquid extract from kale.

The liquid extract of kale is obtained by cold maceration of the dried leaves of this plant in order to preserve essential, broad-spectrum actives. This technique involves soaking the dried leaves in a sealed container, in a cool place, and at room temperature. The solvent used can be a mixture of alcohol and water to prevent fermentation and/or deterioration of the solution. After maceration, the liquid is drained, filtered, and then bottled. Some kale liquid extracts may constitute a mixture of kale distillate and propanediol, obtained through a specific manufacturing technology. Of plant origin, propanediol refers to a biodegradable solvent free of petrochemical products. This corn sugar derivative is an eco-friendly alternative to glycols (derived from petroleum) in skin and hair care formulations.

Source

  • FUENTER-SALCIDO N. M. & al. The value of bioactive compounds of cruciferous vegetables (Brassica) as antimicrobials and antioxidants: A review. Journal of Food Biochemistry (2020).

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