PRODUCT DESCRIPTION

Lactococcus lactis is a member of the mesophilic group of bacteria forming one of the main constituents in both industrial and artisanal starter cultures. The principal role of lactococci in dairy fermentations involves the metabolism of lactose to lactic acid and the conversion of milk proteins into flavor compounds.

SPECIFICAITON

Strain name	Lactococcus lactis	Strain number	HH-LLL39
Potency	100bn cfu/g	Gene Identification	Yes
Deposit	CCTCC	Certification	ISO,HACCP,HALAL,KOSHER
Packing	500g,1kg or 5kg per foil bag	Storage	-18℃ for long time, 2-8℃ for short time

TECHNICAL INDICATORS

Items		Specification
1) Live Lactococcus lactis potency		≥ 1.0×10¹¹ CFU/g
2) Water content		≤8.0%
4) Coliforms		≤10CFU/g
5) Moulds, Yeasts		≤10CFU/g
6) Pathogenic bacteria		Negative
7) Heavy metals	Lead (Pb)	≤1ppm
	Arsenic (As)	≤0.5ppm

STABILITY

Lactococcus lactis HH-LLL39 powder were sealed in aluminum foil bag, maintained at -18℃ for 24 months for long-term stability test. The microbial enumeration of Lactococcus lactis HH-LLL39 should be performed no more frequently than at the initial, 1, 2, 3, 6, 9, 12, 15, 18, 21, 24 month time points. According to Fig 1, the potency of Lactococcus lactis HH-LLL39 powder was 1.50×10¹¹CFU/g. After a storage period of 24 months, the potency of the powder was 1.01×10¹¹CFU/g. It means that this strain can remain stable for long time if stored at low temperature.