Name of the product: Milk Thistle Oil – Refined (Grade B) / Silybi Mariani Oleum Raffinatum B
Plant species: Silybum marianum (L.) Gaertn.
Used part of herb: Seed
CAS No.: 84604-20-6

Active substances:

Polyunsaturated fatty acids, mainly linoleic acid in form of acylglyceroles; phytosterols (β-sitosterol, ∆-7-stigmasterol, stigmasterol, campesterol); phospholipids, phytosqualene.

Properties:

Oil can be easily incorporated into final cosmetic preparation thanks to low tension on the boundary of water and lipid phases (polar oil). The refinement of Milk Thistle Oil is carried out under ambient temperature so all natural active principles remains untouched in maximum extend while the undesired substances such as colours, smell and traces of degradation products are selectively removed.

Final refined oil is of slightly yellow colour with very fine plant smell. During the refining procedure the oil become stabilized and can be applied directly in cosmetic preparation.

For the long term stability of the refined oil, argon is used as the inert gas avoiding the contact of the oil with oxygen in storage containers.

Product specification:

Description: Viscous liquid of pale yellow colour with a mild characteristic plant odour. Immiscible with water and/or ethanol 96%. Soluble in hexane.

Identity: The retention times of fatty acids peaks on GC plot correspond to reference solution.

• Acid Value - AV ≤ 5 mg KOH/g
• Relative Density = 0.905-0.925
• Refractive Index nD(20) = 1.469-1.476
• Peroxide Value - PV ≤ 12 mmol/kg
• Iodine Value - IV ≥ 70 g Iodine/100 g
• Unsaponifiable Matter - IU ≤ 1.5% (w/w)
• Fatty Acid Composition:

Palmitic Acid 7-12 % (Area)
Oleic Acid 15-25 % (Area)
Linoleic Acid 46-65 % (Area)

Expiry

• 180 Days from date of certification in case of storage and handling in metal containers.
• 90 Days from date of certification in case of storage and handling in polyethylene containers.

Storage:

• Store in well closed and labeled original metal containers protected from moisture at the temperature not exceeding 25 °C.
• Store in well closed and labeled original polyethylene containers protected from moisture at the temperature not exceeding 25 °C.