The UV-vis spectrum has a wide peak at around 410 nm but its different than plasmon excitations (like in silver nanoparticles).
The main question is why the solution change colour to red? The spores donot germinated so rather donot produce pigment.
Today I observed next change of colour. The UV-VIS spectrum have double peak so I suppose there are some outflows of spores, or the spores produce a pigment.
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The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.
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