Preparation and use of apple skin polyphenol extracts in milk: enhancement of the viability and adhesion of probiotic Lactobacillus acidophilus (ATCC 1643) bacteria

摘要: Summary This study explored the feasibility of using apple skin as a source for generating antioxidant extracts, that is ethanolic or aqueous polyphenol extract (ASPE) and examined effects such ASPEs six purified polyphenols (PPs), rutin, epicatechin, phlorizin, cholorogenic acid, quercetin p-coumaric acid on viability probiotic bacteria (PB) Lactobacillus acidophilus in PP-enhanced milk drink at 4 °C vitroPB adhesion to hydrophilic tissue culture microtitre plates (TCMPs) 37 °C. The two differed slightly activity, PP composition total extracted PP, vitamin C uronic contents. PB. had over 10× better with added PPs than without 50-day storage 4 °C, while was more effective any pure PPs, except rutin. PB exhibited significantly greater potential intestinal cells presence ASPE temperature (4 °C 37 °C) negligible effect adhesion. Use enhancing functionality dairy foods may offer means deriving value from this waste stream.