The yeast used to make beer has yielded what may be the first gene for beer foam, CFG1, scientists are reporting in a new study. The discovery opens the door to new possibilities for improving the frothy "head" so critical to the aroma and eye appeal of the world's favorite alcoholic beverage, beer. And it gives Science 2.0 another reason to write about beer.
Tomás G. Villa and colleagues explain that proteins from the barley and yeast used to make beer contribute to the quality of its foam (read more about beer foam and foam-stabilizing materials and terms like proteolysis here). The foamy head consists of bubbles containing carbon dioxide gas, which yeast produces during fermentation.
Proteins gather around the gas, forming the bubbles in the foam. Studies have shown that polypeptides, chains of amino acids, in beer - proteins - from the yeast stabilize the foam, preventing the head from disappearing too soon.
But until now, no one knew which yeast gene was responsible for making the foam-stabilizing protein.
The researchers identified the gene, which they call CFG1. The gene is similar to those already identified in wine and sake yeasts that also are involved in foaming. "Taken together all the results shown in the present paper make … CFG1 gene a good candidate to improve the foam character in the brewing industry," they say.
Published in Journal of Agricultural and Food Chemistry
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Schrödinger's Cat Is Not Just Alive And Dead, He's Both In 2 Places At Once
- Case For Moon: Humanity's Gateway To The Solar System - Open Ended Exploration With Planetary Protection At Its Heart
- Mindfulness Is Not A Waste Of Time
- B0 Meson Lifetime Difference Measured By ATLAS
- Voluntary Birth Control To Stop Climate Change - Or Else
- Arctic Ocean Methane Does Not Reach The Atmosphere
- Why Malnutrition Is An Immune Disorder
- "this must be mystery, Cat Mystery. lol..."
- "Vampire are not real, and can never be. This stuff is limited to movies only...."
- "Milk is so tasty. Soy, Oy! CO2 is fertilizer for plants. We need more of it. Meat is tasty too..."
- "Both the Pacific Salmon Forum and the Cohen Commission agree there is scant evidence farming salmon..."
- "If interested in an electromagnetic model of the photon structure and its absorption process, as..."
- The Name Game: How Unethical Environmental Groups and Toxic Fanatics Scare You With Words
- Naturopathy: A Pre-holiday Rant
- Misdiagnosis of Dehydration in Older Folks
- The Amazing Things Poo Can Tell Us About Health
- This Dinner Plate Sucks—Literally
- Gwynn’s Appeal to Jury Could Overshadow Medical Science
- New meta-analysis shows ketamine effective against persistent post-surgical pain and could provide major cost-savings globally
- Refusing access to surgery recovery area at a UK hospital unless WHO Safe Surgery Checklist is fully complete
- Investment in energy storage vital if renewables to achieve full potential
- The Lancet Oncology: Teenagers and young adults still fare worse than children for many common cancers, according to Europe-wide
- Coping with active surveillance anxiety in prostate cancer