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Article Publish Status: FREE
Abstract Title:

Oligosaccharides Isolated from MGO™ Manuka Honey Inhibit the Adhesion of,O157:H7 andto Human HT-29 cells.

Abstract Source:

Foods. 2019 Oct 1 ;8(10). Epub 2019 Oct 1. PMID: 31581550

Abstract Author(s):

Jonathan A Lane, Julie Calonne, Helen Slattery, Rita M Hickey

Article Affiliation:

Jonathan A Lane

Abstract:

Historically, honey is known for its anti-bacterial and anti-fungal activities and its use for treatment of wound infections. Although this practice has been in place for millennia, little information exists regarding which manuka honey components contribute to the protective nature of this product. Given that sugar accounts for over 80% of honey and up to 25% of this sugar is composed of oligosaccharides, we have investigated the anti-infective activity of manuka honey oligosaccharides against a range of pathogens. Initially, oligosaccharides were extracted from a commercially-available New Zealand manuka honey-MGO™ Manuka Honey (Manuka Health New Zealand Ltd)-and characterized by High pH anion exchange chromatography coupled with pulsed amperiometric detection. The adhesion of specific pathogens to the human colonic adenocarcinoma cell line, HT-29, was then assessed in the presence and absence of these oligosaccharides. Manuka honey oligosaccharides significantly reduced the adhesion ofO157:H7 (by 40%),(by 30%), and(by 52%) to HT-29 cells. This activity was then proven to be concentration dependent and independent of bacterial killing. This study identifies MGO™ Manuka Honey as a source of anti-infective oligosaccharides for applications in functional foods aimed at lowering the incidence of infectious diseases.

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