Reference Article

from Wikipedia, the free encyclopedia

Citric acid

Citric acid is a weak organic acid found in citrus fruits.

It is a natural preservative and is also used to add an acidic (sour) taste to foods and soft drinks.

In biochemistry, it is important as an intermediate in the citric acid cycle and therefore occurs in the metabolism of almost all living things.

It also serves as an environmentally benign cleaning agent and acts as an antioxidant.

Citric acid exists in a variety of fruits and vegetables, but it is most concentrated in lemons and limes, where it can comprise as much as 8 percent of the dry weight of the fruit.

Note: This article excerpts material from the Wikipedia article "Citric acid", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:

Related Videos

last updated on 2014-12-20 at 10:08 am EST

Pregnancy: What to Expect Week 34 Digestive Problems

Pregnancy: What to Expect Week 34 Digestive Problems

Buzz60 (Oct. 3, 2012) By 34 weeks of your pregnancy, you may have noticed youre having all kinds of digestive problems: burping, acid reflux, bloating. You might not even be able to eat more than a few bites without feeling really, disgustingly full. Dawn Siff has some tips for you in this episode of Parenticity: Growing and Glowing.
Powered by
GERD: Five Acid Reflux Myths

GERD: Five Acid Reflux Myths

Ivanhoe (May 14, 2013) Millions of Americans suffer from GERD -- a chronic digestive disease that happens when stomach acid flows back into your food pipe. A lot of people know the condition causes heartburn, but there’s a lot more to it.
Powered by
Researchers Create Stem Cells From Adult Cells

Researchers Create Stem Cells From Adult Cells

Newsy (Jan. 29, 2014) Researchers say they converted adult cells from mice into stem cells by exposing them to acid. Video provided by Newsy
Powered by
Surviving an Acid Attack: Healing With Lasers

Surviving an Acid Attack: Healing With Lasers

Ivanhoe (Apr. 30, 2014) An acid attack left her suffering with burns on most of her body. Now, new advances in lasers are melting away her scars and giving her life back. Video provided by Ivanhoe
Powered by

Related Stories

Share This

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.


Breaking News:
from the past week

In Other News

... from

Science News

Health News

Environment News

Technology News


Free Subscriptions

Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile

Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins