TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The Achromobacter denitrificans strain SP1 comprises a DNA sequence of SEQ ID NO: 1 (a 1397 nucleotide sequence fully defined in the specification).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises inoculating the Achromobacter denitrificans strain SP1 to a composition containing a phthalaldehyde compound of formula (II) or a pre-processed polymeric substrate comprising (II) to obtain a biomixture, incubating the biomixture to enable the Achromobacter denitrificans strain SP1 to digest (II) resulting in a bio-converted mass containing orange-red pigmented cell pellets of (I), and isolating (I) from the bio-converted mass.R1, R2 = 1-10C-alkyl, 1-10C-alkene, 1-10C-alkyne or optionally substituted 1-10C-aliphatic or aryl hydrocarbyl.Preferred Process: The pre-processed polymeric substrate is obtained by extracting a plasticizer of (II) from the polymeric substrate, where the extraction step comprises (a) transferring polymeric substrate of 10 mm2 dimensions into a Soxhlet apparatus containing n-hexane to obtain a mixture, where the proportion of polymeric substrate:n-hexane is 1:10, and (b) refluxing the mixture for a time period of 2 hours followed by distillation for separating n-hexane to obtain plasticizer of (II). The pre-processed polymeric substrate is obtained by chopping/cutting the polymeric substrate containing a plasticizer of (II) into pieces of 10 mm2 dimensions to increase the surface area. The step of incubating is carried out at a temperature of 25-30 degrees C and 150 revolutions per minute for a time period of 2-15 days at an initial pH value of 7.2. The step of isolating (I) comprises harvesting the orange-red pigmented cell pellets, adding a solvent to the harvested cell pellets in a proportion of 1:3-1:10 followed by sonication to obtain a slurry, and centrifuging the slurry to obtain (I) in the supernatant. The step of sonication is carried out at wattage of 10-25 watt for a time period of 1-10 minutes and at a temperature of 4 degrees C. The step of centrifuging is carried out at a gravitational acceleration of 6000-10000 g for a time period of 5-25 minutes. Preferred Components: (II) is di(2-ethylhexyl)phthalate. The solvent comprises acetone (preferred), dimethyl sulfoxide, methanol, acetonitrile or chloroform. ACTIVITY - Cytostatic; Immunosuppressive; Antidiabetic; Antirheumatic; Antibacterial; Fungicide; Antiparasitic.    MECHANISM OF ACTION - None given.    SPECIFIC COMPOUNDS - 1 Compound (I) is specifically claimed i.e. (5Z)-5-((3-methoxy-5-(5-((Z)-pent-1-enyl)-1H-pyrrol-2-yl)-1H-pyrrol-2-yl)methylene)-2-methyl-3-pentyl-pyrrole of formula (Ia).    EXAMPLE - Stock culture of Achromobacter denitrificans strain SP1 containing 2.92x 107 colony forming units (CFU) was inoculated with 2.5 mM of di(2-ethylhexyl)phthalate extract to obtain a biomixture. The obtained biomixture was cultivated at a temperature of 28 degrees C for 72 hours and 150 rpm and worked up to obtain a bio-converted mass containing orange-red pigmented cell pellets of 100 mg of (5Z)-5-((3-methoxy-5-(5-((Z)-pent-1-enyl)-1H-pyrrol-2-yl)-1H-pyrrol-2-yl)methylene)-2-methyl-3-pentyl-pyrrole.