4 July 2014
UK Recognition for Methylglyoxal in Manuka Honey Products
Another leading food scientist has acknowledged that the major antimicrobial compound in manuka honey is methylglyoxal.
In an article in the UK’s influential trade magazine The Grocer, Dr David Hoyland, commercial director at Minerva
Scientific – described as “one of Europe’s leading scientific independent honey testing labs” – acknowledged that “the
major antimicrobial compound responsible for the characteristic NPA [non-peroxide activity] in manuka honey has been
identified and is widely recognised as methylglyoxal.”
Dr Hoyland’s view complements and reinforces the research findings of numerous food scientists.
The methylglyoxal compound naturally occurring in manuka honey was identified in 2006 by a Technical University of
Dresden group led by Professor Thomas Henle.
Professor Henle, a Professor of Food Chemistry, has been Chairman of Germany’s Federal Food Chemical Society and
Editor-in-Chief of the scientific journal European Food Research & Technology.
His findings were published in the Journal of Molecular Nutrition and Food Research in January 2008.
His research has been verified by other prominent food chemists, including Professor Peter Molan of the University of
Waikato. See Professor Molan’s views here
Manuka Health Chief Executive Kerry Paul said it was good to see methylglyoxal recognised by yet another eminent food
scientist in a publication influential in the UK, an important market for New Zealand manuka honey producers.
“There are a couple of assertions in the article that I would dispute.
“The first is that methylglyoxal can be found in other plant species. It cannot, in any significant quantity. Generally,
if methylglyoxal is detected in the honey which derives from bees which have harvested the nectar of plants other than
manuka, that means only that there has been an overlap in flowering between neighbouring plants.
“And it is not the case that ‘scientists can’t distinguish between pollen from manuka and its close relative kanuka
...’. Manuka bush produces honey containing methylglyoxal. Kanuka trees do not.”
Kerry said, “There is consensus among scientists and within the industry that methylglyoxal is the principal compound
responsible for manuka’s honey’s unique non-peroxide, anti-bacterial activity.
“If methylglyoxal is adopted by regulators as the only labelling parameter that manuka honey producers can use, then the
damaging controversy being stirred up in local and overseas media will disappear. That can only be of benefit to the
whole industry, and to New Zealand.”
Manuka Health New Zealand Ltd – our journey
Manuka Health, based in Auckland, New Zealand, was founded by its CEO, Kerry Paul, in 2006. Kerry recognised that there
was a growing demand for natural health care and nutrition products based on natural bioactives sourced from New Zealand
plants and trees. Manuka Health has led the world in developing a range of innovative natural products for a wide range
of human health applications. Scientific evidence is provided to support the efficacy of these products. The main
sources for the products are New Zealand manuka honey, propolis and other bee products.
Manuka Health’s products are labelled according to the concentration of key bioactive compounds, eg, methylglyoxal
content, using MGO™, a registered trademark. Products are distributed through a global network comprising over 45
Manuka Health is accredited to ISO 9001 and for British Retail Certification across its operation; ISO 17025 for its
laboratory and testing equipment; as well as Halal & Kosher.