
	Where results make sense

Topic: Bitter (taste)

Related Topics

Basic taste

Taste buds

Denatonium benzoate

Tongue

Chocolate

Alcoholic beverage

Water bomber

Sugar

Strychnine

Enzyme

Fermentation

Brewing

Alcohol

In the News (Fri 13 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	The Physiology of Taste - by Tim Jacob
		In mammals taste buds are located throughout the oral cavity, in the pharynx, the laryngeal epiglottis and at the entrance of the eosophagus.
		Artichokes have the opposite effect, enhancing sweet taste (the active compounds in this case are chlorogenic acid and cynarin) by suppression of sour and bitter taste receptors.
		Taste is determined by the pattern of active (firing) fibres, i.e.
	www.cf.ac.uk /biosi/staff/jacob/teaching/sensory/taste.html (2226 words)

	Anosmia Foundation
		Ageusia - the absence of the sense of taste.
		A taste disorder may present as a loss of taste, that is the loss of the ability to detect salt, sweet, sour, and bitter or it may present as an abnormal taste in the mouth such as a bitter taste, an unpleasant taste, or even an electrical sensation.
		Abnormal tastes may be caused by injury to the taste buds, injury to the nerves responsible for taste, or to a variety of other conditions which occur within the mouth.
	www.anosmiafoundation.org /taste.shtml (1488 words)

	Coffee - Wikipedia, the free encyclopedia
		Major national coffee suppliers tailor their product to tastes in particular regions of the country; for instance, a can of ground coffee purchased in the Northeast or Northwest of the United States will contain a darker roast than an identically appearing can purchased in the central United States.
		It is one of the strongest tasting forms of coffee regularly consumed, with a distinctive flavour and crema, the stiff foam standing over the liquid.
		Opinions on instant coffee range from "intolerable imposter" to "reasonable alternative" to "better than the real thing", and in some areas of the world it is seen as a sophisticated beverage popular in America due to the fact that it was the norm in American homes until the 1980s.
	en.wikipedia.org /wiki/Coffee (4855 words)

	Scientists Isolate Bitter Taste Receptors (Site not responding. Last check: 2007-10-14)
		Taste is caused by the binding of ions, small organic molecules, carbohydrates, proteins, fatty acids, and other molecules to surface proteins on the tongue (Dulac 2000).
		Taste cell proteins that seem to latch onto bitter chemicals have been isolated in the labs at the National Institute of Health in Bethesda, MD and University of California, San Diego.
		Taste is a very complex compilation of multiple stimuli being interpreted by the brain; in order to get a perspective on how the proteins worked in animals, two strains of lab mice were bred: one with the ability to taste cycloheximide, and the other strain unable to taste it.
	www.biol.sc.edu /~elygen/cox.html (820 words)

	Taste Detectors
		Taste's important role has led many researchers to try and unravel the molecular mechanisms that enable the brain to perceive flavors.
		Past research suggested that salty and sour launch the process by acting through small pores on cells in the taste buds, known as channels, while sweet, bitter and umami launch the process by uniting with receptors, special detector proteins that reside on cells in the taste buds.
		They also plan to confirm whether umami is a separate taste category or a combination of other tastes by tracing the mechanisms of glutamate detection from the receptor to the brain.
	www.sfn.org /content/Publications/BrainBriefings/tastedetectors.html (747 words)

	BITTER - Definition (Site not responding. Last check: 2007-10-14)
		Having a peculiar, acrid, biting taste, like that of wormwood or an infusion of hops ; as, a bitter medicine ; bitter as aloes.
		Dreaming that something is or tastes bitter, suggests that a certain aspect or condition in your life is becoming difficult to swallow/tolerate.
		Bitterness is symbolical of affliction, misery, and servitude (Ex.
	www.hyperdictionary.com /search.aspx?define=bitter (602 words)

	Bitter Taste Rejection--A Marker for Dietary Trophic Levels
		For the bitter rejection response to be an effective poison detector, there should be a predictable relationship between the threshold concentration for bitterness and that for toxicity.
		In particular, the bitter taste sensitivity of mice is not a function of the toxicity of the item being tasted.
		A comparison of the bitter taste threshold with the toxic level of the same compounds, in both mice and humans, found no relationship between the bitter taste and toxicity levels.
	www.beyondveg.com /billings-t/comp-anat/comp-anat-7j.shtml (1368 words)

	Science News Online - This Week - Feature Article - 7/12/97
		She analyzed the food preferences of 50 pregnant women and found that the women were most likely to reject bitter-tasting foods in the first trimester, when the fetus is especially vulnerable to damaging compounds.
		If there is a genetic component to taste, "it's a very small factor," adds Ritva Butrum of the American Institute for Cancer Research in Washington, D.C. "A much bigger factor is the way foods have been introduced early in life," she says.
		Taste responses to naringin, a flavonoid, and the acceptance of grapefruit juice are related to genetic sensitivity to 6-n-propylthiouracil (PROP).
	www.sciencenews.org /pages/sn_arc97/7_12_97/bob1.htm (2019 words)

	NIH News Release-Discovery of Taste Receptors May Make Bitter a Bygone Taste - 03/16/2000
		The investigators found the first of the bitter receptors by focusing on a region of human chromosome 5 that was known to affect the ability of certain individuals to detect a bitter compound.
		While other studies have identified a few potential taste receptor candidates, this is the first to discover an entire family of molecules that passed the rigorous biological criteria needed to confirm them as taste receptors.
		Two strains of mice, bitter "tasters" and "non-tasters," were found to have distinct differences in the gene for a bitter receptor.
	www.nih.gov /news/pr/mar2000/nidcr-16.htm (791 words)

	A protein that leaves a bitter taste in your mouth (Site not responding. Last check: 2007-10-14)
		More than twenty proteins detect bitter flavors on the human tongue, including substances that may be toxic or may protect against disease.
		Spoiled or toxic foods are often bitter, and our perception of bitterness may have evolved to warn humans against eating harmful cuisine.
		These proteins reside in taste receptor cells; hundreds of receptor cells make up a taste bud, and thousands of these taste buds cover the human tongue.
	www.genomenewsnetwork.org /articles/10_02/bitter.shtml (413 words)

	The Sense of Taste
		Each taste bud has a pore that opens out to the surface of the tongue enabling molecules and ions taken into the mouth to reach the receptor cells inside.
		Although a single taste cell may have representatives of several types of receptor, one type may be more active than the others on that cell.
		Each taste receptor cell is connected, through a synapse, to a sensory neuron leading back to the brain.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/T/Taste.html (755 words)

	HHMI News: Bitter Taste Receptors Identified
		Mice are useful in studying taste because strains have been bred with the inborn ability to taste or not taste certain bitter substances.
		Studies of these mice have pinpointed a cluster of gene positions on mouse chromosome six that are associated with the tasting of a number of bitter substances.
		Taste is a different matter, especially where bitter compounds are concerned.
	www.hhmi.org /news/zuker.html (1007 words)

	Researchers Seek to Trick Bitter Taste Buds
		They said that bitter blockers, in their current state, only block a small segment of bitter tastes in foods and may not translate well in mass production.
		Introducing the taste of fat in foods while reducing the calories is also likely to be troublesome because scientists have not figured out exactly how to do it.
		The biggest marketing hurdle that the makers of bitter blockers and food producers may face as new products go to market is convincing customers that the products taste the same once the sugar and salt contents have been reduced and replaced with a blocker.
	www.nytimes.com /2003/08/26/technology/26BITT.html?ex=1377230400&en=a6acb5fc3cbf13c7&ei=5007&partner=USERLAND (1604 words)

	Children's taste sensitivity and food choices influenced by taste gene
		In the study, to be published in the February 2005 issue of Pediatrics, researchers compared taste sensitivity and food-related behaviors across three genotypes of the TAS2R38 gene, which encodes a taste receptor responsive to bitter taste.
		Genetic influences on bitter taste sensitivity were in some cases modified by age.
		This difference could be due to taste receptor biology or it could be because those who are most bitter sensitive use more sugar to mask unpleasant tastes in food, and thus come to prefer it more.
	www.medicalnewstoday.com /medicalnews.php?newsid=19702 (1079 words)

	deseretnews.com \| Nature preserves bitter-taste genes
		An earlier study by the National Institute on Alcohol Abuse and Alcoholism found that the percent of smokers who couldn't taste PTC is considerably higher than that of the population as a whole.
		Oddly, in a taste test among Deseret Morning News reporters, a photographer and a reporter's wife, the normal ratio was reversed.
		The PTC gene is among approximately 24 involved in tasting bitter substances, according to the U. The university maintains a library of DNA samples from people throughout the world.
	deseretnews.com /dn/view/0,1249,595094186,00.html (732 words)

	Researchers enjoy bitter taste of success: Science News Online, March 25, 2000 (Site not responding. Last check: 2007-10-14)
		Bitter receptors (green) are made by the same taste cells on a rat's tongue that make gustducin (red).
		However, those proteins weren't made by the taste cells that produce the signaling protein, called gustducin, that's known to be important for recognizing bitterness, says Ryba.
		The characterizations of the family of bitter receptors and the umami receptor have paved the way for scientists to finally understand how taste works, says Steven D. Roper of the University of Miami, a codiscoverer of the umami receptor.
	www.sciencenews.org /articles/20000325/fob2.asp (651 words)

	ScienCentral: Bitter Taste Buds
		In part, purveyors of fine taste have cause to wrinkle their nose about one thing: As easy cooking as prepared meals are they're often not so easy on your health.
		High temperatures involved in processing food prompts sugar and amino acids to produce a bitter taste that's usually masked with high amounts of table salt, associated with high blood pressure and heart disease.
		Then, nerve fibers connected to the taste cell shoot signals to the brain, where five universal flavors ---salty, bitter, sweet, sour and a savory flavor called umami---register.
	www.sciencentral.com /articles/view.php3?article_id=218392491&cat=3_2 (852 words)

	HHMI News: Researchers Discover How Bitter Taste is Perceived
		The same studies also demonstrated that taste cells are “hard-wired” to signal the presence of a particular taste to the brain, regardless of what taste receptors they possess.
		To discover whether T2R receptors were both necessary and sufficient to detect bitter tastes, the researchers engineered mice to have altered or absent T2R receptors in their taste cells and tested the animals' response to bitter substances.
		In the most dramatic experiment, the researchers proved that taste cells are functionally segregated and that it is the wiring of the taste cells themselves to higher brain regions, and not their receptors, which governs taste perception.
	www.hhmi.org /news/zuker7.html (977 words)

	Bitter taste, phytonutrients, and the consumer: a review -- Drewnowski and Gomez-Carneros 72 (6): 1424 -- American ...
		metabolites, was responsible for the bitter taste of Brussels
		Mean bitterness intensity ratings (on a scale of 0–100) for 16 cultivars of Brussels sprouts as a function of combined progoitrin and sinigrin content (g/kg).
		to bitter taste was to evolution and survival.
	www.ajcn.org /cgi/content/full/72/6/1424 (6021 words)

	ScienCentral: Veggie Virtues
		That’s because broccoli and many other vegetables taste bitter thanks to toxic compounds called phytochemicals or phytonutrients.
		Taste alone rules." For instance, glucosinolates are a family of chemicals (sulforaphane falls in this group) which help fight cancer, but they are usually removed from brussel sprouts to make them taste better.
		Humans are sensitive to bitter taste much more so than sweet or sour tastes, and this aversion goes back a long way.
	www.sciencentral.com /articles/view.php3?language=english&type=24119&article_id=218391507&cat=1_1 (944 words)

	Five Senses - Lesson 6
		The students, working in small groups, use the taste graph to select the class favorite food and decide whether it is salty, sweet, sour or bitter.
		We know that the senses such as sight, hearing, touch and smell are possible because the nerve endings in the eye, the ear, in the skin and in the nose send messages to the brain, and the brain decides what to do about the message.
		The different taste buds begin their jobs and you can tell if the candy is sweet, sour, salty or bitter.
	www.sedl.org /scimath/pasopartners/senses/lesson6.html (1443 words)

	Applied Genetics News: BASIC SCIENCE: Bitter Taste Receptors Identified - Brief Article (Site not responding. Last check: 2007-10-14)
		A bitter taste is often a sign that food contains a dangerous chemical compound.
		Also, the receptors were not associated with gustducin, a coupling protein that participates in signaling bitter taste to the brain.
		To find the missing taste receptors, the researchers focused on a specific interval of DNA on one human chromosome that was known to be associated with the ability to taste the bitter compound PROP (6-n-propylthiouracil).
	www.findarticles.com /p/articles/mi_m0DED/is_9_20/ai_61859157 (497 words)

	bitter taste 8 oz - Find, Compare, and Buy at Shopping.com
		Bitter tasting spray will keep your ferret from clawing, pawing or gnawing the wrong things.
		Bitter tasting spray will keep your small animal from clawing, pawing or gnawing the wrong things.
		Bitter Apple leaves an unpleasant taste on surfaces to discourage licking, chewing and biting.
	www.shopping.com /xGS-bitter_taste_8_oz (797 words)

	Scientist Finds The Gene That Determines Major Sensitivity To Bitter Taste
		How individuals are genetically predisposed to respond or not respond to the bitter taste of substances like nicotine and certain foods may have broad implications for nutritional status and tobacco use.
		Studies over the past 70 years, have demonstrated that taste variation is common in the U.S. population: about 30% of the population are PTC (a prototype of a class of bitter substances) non-tasters, while 70% are tasters of PTC, experiencing it as intensely bitter.
		Other earlier investigation suggests that non-tasters may not experience the bitter taste of nicotine in cigarettes and may be at greater risk for prolonged smoking.
	www.sciencedaily.com /releases/2003/02/030221080756.htm (1200 words)

	Bitter Taste after Crown Repalcement - Dentistry (Site not responding. Last check: 2007-10-14)
		Hi All: Just wondering if anyone knows why I would get a bitter taste in my mouth after having a front crown replaced.
		It is a previous root canaled tooth and the dentist put a new post and core before he put the crown.
		It is a previous root > canaled tooth and the dentist put a new post and core before he put > the crown.
	www.medicaltalk.org /_Bitter_Taste_after_Crown_Repalcement-25484162-10-a.html (302 words)

	Bitter Taste Buds Affect How Much You Drink
		The study showed so-called "supertasters" who were most sensitive to bitterness drank less, on average, than "nontasters" who couldn't detect bitter tastes.
		But Duffy says genetic variation in taste is perfectly normal, and doesn't mean that some people are taste dysfunctional and others are not.
		Each of the volunteers rated the bitterness of five solutions containing a bitter compound called PROP, and researchers took blood tests to screen for the gene that allows people to taste this bitter compound.
	my.webmd.com /content/article/97/104010.htm (480 words)

	Leaving a bitter taste (Site not responding. Last check: 2007-10-14)
		The T2R family of receptors, found on the tongue and palate epithelium, are implicated in bitter taste sensing.
		Mice engineered to express a bitter taste receptor in what are normally 'sweet' cells display strong attraction to this family of bitter compounds.
		So the 'taste' of a sweet or a bitter compound is a reflection of how the specific receptors are wired, rather than a property of the receptors or even of the tasted molecules themselves.
	www.nature.com /nature/links/050310/050310-9.html (155 words)

Try your search on: Qwika (all wikis)