Got milk? Now Keep It Fresher Longer!
Reported November, 2010
CORVALLIS, OR (Ivanhoe Newswire) -- Anyone who eats cereal knows that pasteurization is cooking milk at a high temperature to kill microorganisms, but while that heat kills bacteria, it also kills flavor. So it’s a good thing new research has finally solved this problem; meaning the best milkshake you’ve ever had is just around the corner.
You need Flash Player 8 or higher to view video content with the ROO Flash Player.
Click here to download and install it.
You know the TV spots; you’ve seen the star-studded magazine ads for years now. But once you got milk, do you how long it will stay fresh in your fridge?
At Oregon State University’s food science lab, they can cook-up a mix that lasts more than a month and still tastes fresh.
“Good taste, good aroma, that is the kind of research we are doing here,” Michael Qian, Ph.D, a food scientist at Oregon State University told Ivanhoe.
Ultra-pasteurized milk is cooked at 280 degrees Fahrenheit. While that kills bacteria, it also breaks down the proteins that make milk taste good. So doctor Michael Qian found a way to kill the microorganisms while keeping milk from tasting cooked.
“We lower the cooking temperature so we generate less cooked flavor,” Dr. Qian said.
Turns out low heat, plus pressure does the trick. This massive machine is a hydrostatic pressure processor; it subjects milk to 85-thousand pounds of pressure per square inch for five minutes, literally crushing bacteria to death.
“If you think that high pressure at the bottom of the sea is high, think 10 times that pressure that’s the pressure we work at,” J. Antonio Torres, Ph.D, a food scientist said.
“The pressure is just so high, we squeeze it so the microbials will die,” Dr. Qian said.
Low heat saves milk’s flavor by protecting the proteins. Add in pressure processing, and it stays fresh in your fridge for 45 days. So now you got milk and you got it for longer.
Milk processed under pressure could be available to consumers in three to five years if it becomes cost-effective. The technique is already being used in other industries as a method of microbial control.
Click here to Go Inside This Science or contact:
Dr. Michael Qian
Food Science, Oregon State University
Time Change: Setting Your Internal Clock
This Month's TV Reports
How does your internal clock impact your health?
Stand Up To Save Your Life
How many hours do you spend on your seat? We break it down hour by hour … and show you just how much damage you’re doing.
Attack Of The Kudzu Plant!
It grows a foot a day and destroys forests! What is it? We’ll show you how this out-of-control vine is impacting our planet and our health.
Saving Time, Tax Payers Money & Jobs
breakthrough discovery that will shorten your child’s bus route, put money back in your pocket and possibly save teachers' jobs
Cyber Smart Kids
Spyware, spam, pop-ups and malware … do your kids know how to spot them and avoid them? A new FREE video game teaches kids to be cyber smart!
Rev Up Your Electric Engines!
Rev up your engines, wait electric cars don’t rev. We’ll tell you why this is dangerous, and what’s being done to improve safety on the roads—and it could have everyone hearing something strange.
Freezing Skulls and Saving Lives
A skateboarder is making medical history! An accident left his brain swollen and his skull broken. Doctors put him back together and kept his skull safe by freezing it!.
Helping to Hear: Cochlear Implants X 2
Since their invention, cochlear implants have helped millions hear. Now, doctors are increasing their power by implanting not one…but two of these hearing aids.
Smart Phones Save Eyes
Can’t make it to the eye doc? Now a phone app can help you test your vision.
More Volcanoes = Less Storms
How can a volcano affect a hurricane? It does and in the weirdest way.
Got Milk? Now Keep It Fresher Longer
How long does your milk keep? Two weeks? Maybe a little longer? Now, scientists have found a way to keep the taste and keep milk around for 2 months!.
Inside The National Zoo!
We go where few people have ever gone—we get up close and personal with a 23 year old orangutan. Find out what researchers are teaching Iris to do.