HOME >> BIOLOGY >> NEWS
UF experts: Decaffeinated coffee is not caffeine-free

GAINESVILLE, Fla. - Coffee addicts who switch to decaf for health reasons may not be as free from caffeine's clutches as they think. A new study by University of Florida researchers documents that almost all decaffeinated coffee contains some measure of caffeine.

Caffeine is the most widely consumed drug in the world. And because coffee is a major source in the supply line, people advised to avoid caffeine because of certain medical conditions like hypertension should be aware that even decaffeinated brew can come with a kick, UF researchers report in this month's Journal of Analytical Toxicology.

"If someone drinks five to 10 cups of decaffeinated coffee, the dose of caffeine could easily reach the level present in a cup or two of caffeinated coffee," said co-author Bruce Goldberger, Ph.D., a professor and director of UF's William R. Maples Center for Forensic Medicine. "This could be a concern for people who are advised to cut their caffeine intake, such as those with kidney disease or anxiety disorders."

Despite caffeine's widespread use, most medical texts have no guidelines for intake, Goldberger said, but even low doses might adversely affect some people. So UF researchers set out to conduct a two-phase study designed to gauge just how much caffeine is likely to turn up in decaffeinated coffees.

First they purchased 10 16-ounce decaffeinated drip-brewed coffee beverages from nine national chains or local coffee houses and tested them for caffeine content. Caffeine was isolated from the coffee samples and measured by gas chromatography. Every serving but one - instant decaffeinated Folgers Coffee Crystals - contained caffeine, ranging from 8.6 milligrams to 13.9 milligrams.

In comparison, an 8-ounce cup of drip-brewed coffee typically contains 85 milligrams of caffeine.

In the study's second phase, scientists analyzed 12 samples of Starbucks decaffeinated espresso and brewed decaffeinated coffee taken f
'"/>

Contact: Denise Trunk
dtrunk@ufl.edu
352-273-5819
University of Florida
10-Oct-2006


Page: 1 2

Related biology news :

1. Not so contoversial anymore -- panel says moderate coffee drinking reduces many risks
2. Strengthening coffee
3. Patients undergoing PET/CT may want to pass on that cup of coffee, according to SNMTS study
4. Emory chemists develop bacteria that may help decaffeinate coffee

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: experts Decaffeinated coffee not caffeine free

(Date:12/17/2014)...  HITLAB SM announced today its completion of a ... to current U.S. Food and Drug Administration (FDA) regulations. ... and smart phone application trials utilizing the highest principles ... is determined to improve global healthcare access, quality, and ...
(Date:12/17/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ) ... Sensor Market 2015-2019" report to their offering. ... major trend upcoming in this market is the increasing ... help in recording of patient data for quick and ...
(Date:12/15/2014)... and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) has announced ... 2015-2019" report to their offering. ... a technology used for the identification of individuals. Facial ... person such as nose, jaw edges, mouth, and the ...
Breaking Biology News(10 mins):HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
(Date:12/25/2014)... (PRWEB) December 25, 2014 The report ... by Product Type & Provider Type - Global Advancements, ... market with an in-depth analysis and forecasting of revenues. ... spread through 221 pages and in-depth TOC on “Service ...
(Date:12/24/2014)... NEW YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, ... in critical areas, announced the closing of an underwritten public ... purchase up to an aggregate 3,500,000 shares of common stock, ... per warrant.  The warrants have a per share exercise price ...
(Date:12/24/2014)... 2014   BioLife Solutions , Inc. (NASDAQ: BLFS ... grade hypothermic storage and cryopreservation freeze ... and tissues  ("BioLife" or the "Company"), today announced that it ... 4, 2015 (the "Annual Meeting"). Because the expected ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 GMO corn cases ... Syngenta, are in the process of being consolidated in a ... In Re: Syngenta AG MIR 162 Corn Litigation, MDL No. ... Kansas. , Management of the Syngenta GMO corn multidistrict litigation ...
Breaking Biology Technology:Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3BioLife Solutions Sets Date for Annual Meeting of Stockholders 2Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2
Cached News: