Yummy? Thank the bacteria in your mouthNovember 11th, 2008 - 5:40 pm ICT by IANS
Washington, Nov 11 (IANS) Find the taste really yummy? Thank the bacteria in your mouth that imparts those delicious and distinctive flavours.Christian Starkenmann and colleagues who conducted research into taste pointed out that some fruits and vegetables release characteristic odours only after being swallowed.
Scientists performed sensory tests on 30 trained panelists to evaluate the odour intensity of volatile compounds - known as thiols - that are released from odourless sulphur compounds found naturally in grapes, onions, and bell peppers.
It took participants 20 to 30 seconds to perceive the aroma of the thiols - and this perception persisted for three minutes, according to a release of the American Chemical Society (ACS).
The researchers also determined that the odourless compounds are transformed into the thiols by anaerobic bacteria residing in the mouth - causing the characteristic ‘retroaromatic’ effect.
“The mouth acts as a reactor, adding another dimension to odour perceptions,” they explained. However, the authors conclude, it is saliva’s ability to trap these free thiols that helps modulate the long-lasting flavours.
The study will appear in Wednesday’s edition of the ACS bi-weekly Journal of Agricultural and Food Chemistry.
- Mouth bugs help make certain foods tasty - Nov 15, 2008
- Women smell of onion while males of cheese - Jan 29, 2009
- Angled, down-the-side' is the best way to pour champagne - Dec 23, 2010
- Fat can affect brain's perception of flavour: Study - Jul 22, 2012
- 'Angled, down-the-side' is the best way to pour champagne - Aug 12, 2010
- 'Smelly food' can keep you off unwanted pounds - Mar 25, 2012
- Deodorant made from nanoparticles to eliminate unpleasant odours - Oct 31, 2010
- Flavoured crystals can 'trick' you into losing weight - Nov 08, 2010
- Nanoparticles found promising in beating bad odours - Jan 27, 2011
- Source of insect buzz around beer identified - Nov 20, 2011
- Odours can help cut salt in food - Aug 15, 2011
- Water that looks and smells bad may be toxic - Sep 14, 2010
- Now, crunchy and spicy soy snacks to boost nutrition in Indian kids - Oct 20, 2010
- Scientists learn to mask ginseng bitterness - Dec 07, 2010
- Triple flavoured sticks of chewing gum in offing - Oct 08, 2010