Impact of eco-extractives methods on the extraction of polyphenols and antioxidant and antimicrobial activities from Dialium waste wood and barks

Species of the genus Dialium, in the subfamily Dialoideae, are
known to have high medicinal and nutritional value. This study
examines the potential health benefits of waste products obtained
by eco-extraction methods from the wood and bark of Dialium
species from the Congo Basin. The focus is on the identification
and quantification of polyphenols and the assessment of their
antioxidant and antimicrobial effects. The results showed
significant levels of catechin, epicatechin and salicylic acid using
high-performance liquid chromatography (HPLC UV-Vis)
analytical techniques. The antioxidant potential of the extracts
obtained is assessed by tests targeting their ability to scavenge
free radicals (DPPH) and reduce ferric oxide (FRAP), thereby
inhibiting oxidative damage. This information provides an insight
into the potential health benefits of eco-extracted waste. A
correlative study looked at which polyphenols were likely to have
certain antioxidant and antimicrobial activities.
Ultimately, Dialium corbisieri and Dialium bambidense by
products from wood processing industries in the Congo Basin
countries can be considered as interesting materials for the
extraction and recovery of natural polyphenols, particularly
thanks to the high salicylic acid content present in the wood.