The present invention provides a method for extracting ε-polylysine (ε-PL) and its hydrochloride salt from fermentation broth, which belongs to the field of bio-separation engineering. ε-PL and its hydrochloride salt are produced from fermentation broth through sequential solid-liquid separation, ...
= 1.7-3.8 kDa) which contain one Z-protected -NH2 group per chain were synthesized by ring-opening polymerization of epsilon-caprolactone in the presence of Sn(oct)2 using as initiator a diamine prepared by condensation of N-Boc-1,6-hexanediamine and N(alpha)-Boc-N(epsilon)-Z-L-Lysine....
5g。 The fermentation broth was centrifuged to remove cells, the supernatant was adsorbed on 732 cation exchange resin, washing, aqueous ammonia, nitrogen collected liquid is concentrated, active carbon, concentrated by ethanol precipitation to continue to give the ε-poly-lysine hydrochloride 13. 5g...
The present invention provides a method for extracting ε-polylysine (ε-PL) and its hydrochloride salt from fermentation broth, which belongs to the field of bio-separation engineering. ε-PL and its hydrochloride salt are produced from fermentation broth through sequential solid-liquid separation, ...
CONSTITUTION:A cosmetic obtained by incorporating epsilon-polylysine, expressed by the formula (n is 25-30), and separated and purified from a product of Streptomyces albulus No.346 strain by the well-known method and a hydrochloride thereof as a preservative for preventing deterioration of the ...
CONSTITUTION:A cosmetic obtained by incorporating epsilon-polylysine, expressed by the formula (n is 25-30), and separated and purified from a product of Streptomyces albulus No.346 strain by the well-known method and a hydrochloride thereof as a preservative for preventing deterioration of the ...
;CONSTITUTION: A poly-L-lysine is dissolved in 50mM tetramethyleneehyleneethylenediamine (pH 4.7), and 4-O-β-D-galactopyranosyl- gluconic acid and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) as a condensing agent are added thereto and reation of these components is carried...
Ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC, 98.5%) was obtained from MacLean Biochemical Technology (Shanghai, China). The chemicals ethylenediamine anhydrous (ED, 99%), chloroacetic acid, and dimethyl sulfoxide (DMSO, 99.5%) were obtained from the Damao Chemical Reagent Factory...