5. platensis

Many related complexes, such as the platenomycin complex (initially YL-704) from S. platensis suhsp. malvinus have been obtained (201—206). A series designated by abbreviations (DHP, DOA) was obtained from another strain of S. platensis (207) the midecamycin complex (initially SF-837) was produced by S. mjcarojaciens (208—212) the espinomycin factors were produced by S. Jungicidicus var. espinomjceticus (213,214) the turimycin series of fifteen components, isolated from culture broths of S. hjgroscopicus are identical to other members of the leucomycin group (215). Niddamycin (42, R = H, R = butyryl) was isolated from cultures of S. djakartensis (216). 

Macrolides containing only neutral sugars were obtained from a platenomycin-producing organism (217,218). Four demycarosyl derivatives of platenomycins were isolated from biosyntheticaHy blocked mutants of S. platensis, two of these possessed a methyl group rather than an aldehyde (219). A pair of novel compounds related to carbomycin were isolated in which one contained an unusual 10,ll-dihydro-12,13-diol moiety, the other a 14-hydroxy-epoxyenone moiety (220). 

S. cerevisia NC 1299 Streptomyces platensis NRRL 2364 Ps. aeruginosa ATCC 10145... 

The red microalga Porphyridium aerugineum is a source of blue color. This species is different from other red microalgae in that it lacks red phycoerythrin and its phycocyanin is C-phycocyanin rather than the R-phycocyanin that accompanies phycoerythrin found in many red algae and in other Porphyridium species. However, the biochemicals produced by P. aerugineum are similar to those of other red microalgae, e.g., sulfated polysaccharides, carotenoids, and lipids. An alternative source of C-phycocyanin is Spirulina platensis. ... 

Bermejo, R. et ah. Expanded bed adsorption chromatography for recovery of phyco-cyanins from the microalga Spirulina platensis, Chromatographia, 63, 59, 2006. Thieghem, (van) R, Monascus, genre nouveau de I ordre des ascomycfetes. Bull. Soc. Bot. France, 31, 226, 1884. 

Rakhimberdieva, M. G., V. A. Boichenko, N. V. Karapetyan, and I. N. Stadnichuk (2001). Interaction of phy-cobilisomes with photosystem B dimers and photosystem I monomers and trimers in the cyanobacterium Spirulina platensis. Biochemistry 40(51) 15780-15788. 

Streptomyces griseolus Streptomyces platensis Streptomyces rimosus Streptomyces roseochromogenus Streptomyces rimosus... 

One study on toxicity of phycocyanin from Spirolina platensis reported no adverse effects.39 There is little other data available on toxicology but no toxic effects would be expected in view of the long history of algal consumption. 

AKHILENDER NADU, M., VISWANATHA, S., NARASINKA MURTHY, K., ravishankar, g. A. and srinivar, l. Toxicity assessment of phycocyanin, a blue colorant from blue green algae, Spirulina platensis, Food Biotechnol., 1999, 13, 51-6. 

Fig. 2.30. Total ion current chromatogram of alga Spirulina Platensis algae sample by LC-TurbolSP-MS and positive-ion mass spectra of the carotenoids identified 1 = zeaxanthin 2 = /Tcryptoxanthin 3 = /1-carotene. Reprinted with permission from M. Careri et al. [69].

Figure 19 X-Ray structure of the active site of the 2Fe ferredoxin of Spirulina platensis...

Biotransformation of or-Bromo and a,a -Dibromo Alkanone into or-Hydroxyketone and ar-Diketone by Spirulina platensis... 

Figure 12.8 Biotransformation ofa-bromo- and a,a -dibromo alkanone by S. platensis ...

The mixture was filtered to obtain the alga of S. platensis (yielded about 1 g L dry weight). 

At the end of the reaction, S. platensis was filtered off and the resulting mixture was extracted with EtOAc/Et20 (1 1). The organic layer was collected, dried over anhydrous sodium sulfate and concentrated using a rotary evaporator. 

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