Featured Research

from universities, journals, and other organizations

New freeze-dry method good for processing fish

Date:
August 3, 2011
Source:
USDA/Agricultural Research Service
Summary:
A quicker freeze-dry technique used to process salmon cubes could potentially be applied to add value to meat components considered to be less appealing, according to a researcher.

ARS researchers and their collaborators have developed a quicker way to freeze dry salmon that maintains color, rehydrates quickly and shrinks less, expanding options for adding seafood to the diet such as these salmon cubes.
Credit: Peggy Greb

A quicker freeze-dry technique used to process salmon cubes could potentially be applied to add value to meat components considered to be less appealing, according to a U.S. Department of Agriculture (USDA) researcher.

The new freeze-dry method, which requires less energy and processing time, was developed by scientists at the University of Alaska-Fairbanks (UAF) in collaboration with Peter Bechtel, a food technologist at the Agricultural Research Service (ARS) Subarctic Agricultural Research Unit (SARU) in Kodiak, Alaska. ARS is USDA's principal intramural scientific research agency.

One of the goals of the study was to set up a process that would produce freeze-dried cubes with less than 10 percent moisture, according to Chuck Crapo, seafood technology specialist with the UAF Marine Advisory Program. This was achieved by manipulating temperature and time.

Scientists created a process that took only nine hours by raising the temperature from minus 40 degrees Fahrenheit to 32 degrees Fahrenheit. Traditional processing can take 20 hours or more.

The new method removed 97 percent of the moisture from fillets of Alaska's most abundantly harvested Pacific salmon species -- pink, sockeye and chum. The freeze-dried salmon cubes maintained their original color, rehydrated quickly and shrank less in a shorter period of time than food processed by traditional freeze-drying.

Such products could offer healthful alternatives for less desirable portions of fish muscle, according to Bechtel. For example, when the salmon gets too close to spawning season, its muscle quality declines. Edible portions of the meat, which are then considered byproducts, could be freeze-dried.

Cubes made from salmon are rich in omega-3 fatty acids and could eventually offer a healthful option for people who want to increase seafood in their diets as recommended by the new Dietary Guidelines for Americans. Salmon cubes could be used to make tasty snacks, salad toppings and ready-to-eat soups.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. The original article was written by Sandra Avant. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "New freeze-dry method good for processing fish." ScienceDaily. ScienceDaily, 3 August 2011. <www.sciencedaily.com/releases/2011/08/110801120345.htm>.
USDA/Agricultural Research Service. (2011, August 3). New freeze-dry method good for processing fish. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2011/08/110801120345.htm
USDA/Agricultural Research Service. "New freeze-dry method good for processing fish." ScienceDaily. www.sciencedaily.com/releases/2011/08/110801120345.htm (accessed September 16, 2014).

Share This



More Plants & Animals News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

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.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:

      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