Latest developments in polyphenol recovery and purification from plant by-products: A review

In recent times, research has highlighted the bioactive roles played by non-extractable polyphenols (NEP) in human health, especially from by-products of grains, fruits and vegetables. Most studies have reported on the total phenol content of samples without adequate attention paid to a major class of polyphenols referred to as NEP. This limits the scope of polyphenol studies and the extent of NEP incorporation into medicines, nutraceuticals,...