Evening primrose seed oil / Evening primrose essential oil

PHYSICAL/CHEMICAL

SPECIFICATIONS

Method

APPEARANCE

A clear yellow oil

STM 01.010

ACID VALUE, KOH mg /g:

≤2.0

AOCS Cd 3d-63

PEROXIDE VALUE, meq/kg:

≤10.0

AOCS Cd 8b-90

SAPONIFICATION VALUE,KOH mg /g:

185.0-199.0

AOCS Cd 3-25

UNSAPONIFIABLE MATTER, %

≤2.0

AOCS Ca 6a-40

MOISTURE AND VOLATILES, %:

≤0.20

AOCS Ca 2d-25

GARDNER COLOR

≤5

AOCS Td 1a-64

COLD TEST

Clear after 5.5 hours at 0°C

AOCS Cc 11-53

RESIDUAL SOLVENT, mg/kg:

Negative

AOCS Ba 14-87

LEAD ppm

≤0.2

AOCS Ca 18c-91

ARSENIC ppm

≤0.2

AOAC 986.15

CADMIUM ppm

≤0.2

AOAC 986.15

MERCURY ppm

≤0.2

AOAC 971.21

FATTY ACID COMPOSITION

AOCS Ce 1e-91

C16:0 PALMITIC %

5.0-7.0

C18:0 STEARIC %

1.0-3.0

C18:1 OLEIC %

5.0-10.0

C18:2 LINOLEIC %

69.0-77.0

C18:3 γ- LINOLENIC % 

≥10.5

OTHERS %

0-2.0