EFFECT OF VARIOUS INORGANIC SALTS, CARBON AND NITROGEN SOURCES ON CAROTENOID YIELD IN SURFACE CULTURES OF PENICILLIUM SP.PT95
- VernacularTitle:无机盐和碳氮源对青霉PT95类胡萝卜素产率的影响
- Author:
Jun XU
;
Lixia CUI
;
Jianrong HAN
;
- Publication Type:Journal Article
- Keywords:
Penicillium sp , Inorganic salts, Carbon and nitrogen sources, Carotenoid yield, Sclerotia biomass
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Among inorganic salts tested, K 2HPO 4 was more essential to the sclerotia for mation and carotenogenesis of strain PT95 than KCl, MgSO 4 or FeSO 4 It wa s also shown that the combination of K 2HPO 4, KCl and MgSO 4 could produce t he best positive cooperation and give the highest sclerotia biomass (782mg/plate ) and pigment yield (328 ?g/plate) Five carbon sources, i e glucose sucros e, lactose, maltose and soluble starch, all could be utilized by the strain PT95 , and maltose was the best Among 8 nitrogen sources, yeast extract favooured t he sclerotia formation, and peptone fovoured the pigment accumulation; amine sal ts and urea were unfavourable to form sclerotia The medium containing 0 24 ～ 0 48 g/L sodium nitrate nitrogen was effective to both the sclerotia formation and the carotenoid production of strain PT95 when available maltose carbon con centrations were at 5 26～21 05 g/L The optimal C/N ratio was found to be 25 ∶1
