1.Product Informationi of St.john's Wort Extract:

st.john's wort extract in powder appearance

Botanical source/Latin name: hypericum perforatum

Used part: flower

Active ingredient: hypericin 0.3% by UV

  

2.Specification of St.john's Wort Extract ---- hypericin 0.3% by UV

Item	Specification	Result	Test Method
Active Ingredient
hypericin	0.3%	0.35%	UV
Physical Control
Identification	Positive	Conforms	TLC
Appearance	brown yellow fine powder	Complies	Visual
Odor	Characteristic	Complies	Organoleptic
Taste	Characteristic	Conforms	Organoleptic
Sieve Analysis	100% pass 80 mesh	Complies	80 Mesh Screen
Loss on Drying	5% Max	3.37%	5g/105C /5hrs
Solubility Solubility	in water	Conforms	Visual
Ash	3% Max	2.84%	2g/525C/5hrs
Chemical Control
Sulphate	0.5% Max	Complies	2g/525C/5hrs
Insolubles In Ethanol	10ppm Max	5.3ppm
Ethanol Resides	0.2% Max	Complies
Arsenic (As)	NMT 2ppm	Conforms	Atomic Absorption
Cadmium(Cd)	NMT 1ppm	Conforms	Atomic Absorption
Lead (Pb)	NMT 2ppm	Conforms	Atomic Absorption
Chlorate (Cl)	NMT 1ppm	Conforms	Atomic Absorption
Phosphate Organics	NMT 1ppm	Conforms	Gas Chromatography
Heavy Metals	20ppm Max	Complies	Atomic Absorption
Pesticides Residues	NMT 1ppm	Conforms	Gas Chromatography
Microbiological Control
Total Plate Count	5000cfu/g Max	50cfu/g
P.aeruginosa	Absent	OK
S.aureus	Absent	OK
Salmonella	Absent	OK
Yeast & Mold	50cfu/g Max	10cfu/g
E.Coli	Negative	Negative
Staphylococcus	Negative	Conforms
Aflatoxins	NTM 0.2ppb	Absent	HPLC
Salmonella	Negative	Negative

 

3.Function of St.john's Wort Extract: 

(1)Strong anti-virus effect and stong ability of killing H5N1 and H9N2 subtype of avian influenza virus
(2)Used for the central nervous system of inhibitors and antidepressants
(3)Commonly used in vaccines for livestock.