SUBSCRIBE

Breaking News on Supplements, Health & Nutrition - Europe US edition | APAC edition

News > Research

Read more breaking news

 

 

Honey extract may ease heat stress for cyclists: Study

By Stephen Daniells , 24-Jun-2009
Last updated on 24-Jun-2009 at 11:52 GMT2009-06-24T11:52:00Z

An extract from propolis, the waxy resin collected by honeybees, may reduce the detrimental effects prolonged exercising in hot climates, according to a new study.

Heat stress leads to increased free radical production, and endurance impairment, according to the Taiwanese researchers behind the new study. Caffeic acid phenethyl ester, a phenolic compound from propolis, may protect against these detrimental effects.

Findings published in the Journal of Food Science indicate that pre-treatment with the extract prior to cycling led to significant reductions in the detrimental effects of excessive exercise.

Jasson Chiang from the Graduate Institute of Sport Coaching Science at the Chinese Culture University in Taipei recruited 30 competitive cyclists. The researchers isolated peripheral blood mononuclear cells (MNC) from the participants in order to test whether a pre-treatment with the propolis extract (0, 1, 2, 4 micrograms per millilitre) affected the response to hyperthermia.

According to their findings, hyperthermia increased both the production of superoxide and decreased the cellular levels of the antioxidant glutathione. On incubation with the propolis extract the researchers noted a reversal or reduced hyperthermia-induced effects, including reduced cell death (necrosis), inhibition of the over-production of superoxide, and an attenuation of the depletion of glutathione. All of these effects were in a dose-dependent manner, added the researchers.

“By the ex vivo model system, it shows that caffeic acid phenethyl ester may enhance the hyperthermal tolerance of mononuclear cells in competitive cyclists via antioxidative effect,” wrote the researchers.

“The protective effect of caffeic acid phenethyl ester against hyperthermal stress in the other normal cells and tissues, such as skeletal muscle and myocardium needs to be further investigated,” they concluded.

It is reported that propolis contains about 180 different compounds and the waxy resin has previously been linked to improvements of general health, skin health, and oral health.

Source: Journal of Food SciencePublished online ahead of print, doi: 10.1111/j.1750-3841.2009.01199.x“Caffeic Acid Phenethyl Ester, an Antioxidant from Propolis, Protects Peripheral Blood Mononuclear Cells of Competitive Cyclists against Hyperthermal Stress”Authors: Y.-J. Chen, A.-C. Huang, H.-H. Chang, H.-F. Liao, C.-M. Jiang, L.-Y. Lai, J.-T. Chan, Y.-Y. Chen, J. Chiang

Related products

Live Supplier Webinars

Polyphenols tipped to become the way to innovate in Sports Nutrition
Fytexia
Orally bioavailable standardized botanical derivatives in sport nutrition: special focus on recovery in post-intense physical activities
Indena
Collagen in motion: move freely and keep your injuries in check
Leading manufacturer of gelatine and collagen peptides
Life’s too short for slow proteins. Whey proteins hydrolysates: Fast delivery for enhanced performance
Arla Foods Ingredients
What it Takes to Compete and Win in Today’s Sports Nutrition Market
Capsugel
Sports Nutrition Snapshot: Key regional drivers and delivery format innovations
William Reed Business Media
Gutsy performance: How can microbiome modulation help athletes and weekend warriors
William Reed Business Media
Pushing the boundaries: Where’s the line between ‘cutting edge nutrition’ and doping
William Reed Business Media
Alpha & Omega in Sports Nutrition – Using Omega 3’s and A-GPC to improve performance and recovery.
KD Pharma

On demand Supplier Webinars

High-amylose maize starch may reduce the risk of type 2 diabetes: what does this qualified health claim mean?
Ingredion
Balancing Innovation and Risk in Sports Nutrition Ingredients
NSF-International
Explaining bio-hacking: is there a marketing opportunity for food companies?
William Reed Business Media
Personalized Nutrition – how an industry can take part in shaping the future of Nutrition
BASF Nutrition & Health
Find out Nutritional and ingredient lifecycle solutions and strategies!
Roquette
Is the time rIpe for I-nutrition?
William Reed Business Media
The Advantage of Outsourcing Fermentation-based Manufacturing Processes
Evonik Health Care
All supplier webinars