Abstract:
:Pigments synthesised by Chryseobacterium sp. kr6 growing on feather waste were extracted and characterised. The pigment extract was characterised by KOH test, UV-vis, CIELAB colour system, HPLC-DAD-MS, FTIR and its antioxidant capacity was evaluated. A positive bathochromic shift was observed when kr6 colonies or pigment extracts were subjected to alkaline solution (20% KOH) and a λmax at 450 nm was detected for acetone extracts, although no typical fine structure of carotenoids was detected in the electomagnetic spectra. The HPLC profile of the extracted pigment showed that the compound has three different peaks with λmax near 450 nm. The FTIR analysis shows some principal functional groups from a flexirubin-like molecule. The pigmented compound also presents antioxidant activity evaluated by the scavenging of the ABTS radical.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Jiménez MEP,Pinilla CMB,Rodrigues E,Brandelli Adoi
10.1080/14786419.2017.1423304subject
Has Abstractpub_date
2019-06-01 00:00:00pages
1541-1549issue
11eissn
1478-6419issn
1478-6427journal_volume
33pub_type
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