Navigation Links
Laser etching safe alternative for labeling grapefruit
Date:11/3/2009

LAKE ALFRED, FLLaser labeling of fruit and vegetables is a new, patented technology in which a low-energy carbon dioxide laser beam is used to label, or "etch" information on produce, thereby eliminating the need for common sticker-type labels. The technology has been licensed for use on a variety of fruits and vegetables and is being used in New Zealand, Australia, and Pacific Rim countries. It has been been approved in Asia, South Africa, Central and South America, Canada, and the European Union. The U.S. Food and Drug Administration (FDA) is in the final stages of approving the use of laser etching in the United States.

A research study aimed at investigating water loss, peel appearance, and potential decay in laser-labeled grapefruit was published recently in HortTechnology. "Little information is available on the impact of this new technology on the overall quality of labeled produce, especially its effect on water loss and decay during prolonged storage", said Dr. Ed Etxeberria, who headed the research team comprised of scientists from the University of Florida and the USDA Agricultural Research Service (USDA-ARS).

"In Florida, grapefruit represents 43% of the citrus fresh market. Grapefruit require extended storage, especially when transported to international destinations. This study determined the effects of laser labeling on water loss and decay susceptibility during prolonged storage", Etxeberria explained.

During commercial production, citrus fruit is waxed before being labeled, packed, stored, and transported. Whereas common sticker-type labels do not deteriorate during storage, researchers postulated that water loss resulting from laser etching may distort the physical appearance of the fruit's surface, making it less effective and appealing. "The pinhole depressions applied after washing and waxing disrupt the natural cuticular barrier and the protective commercial wax cover, seemingly creating open cavities that would allow for increased water loss and facilitating the entrance of decay organisms. These etched surfaces can promote water loss and may increase the number of entry sites for decay-promoting organisms", the researchers said.

'Red Ruby' grapefruit that had been washed and waxed with carnuba containing 15 ppm thiabendazole (following established commercial practices) was used in the study. Water loss from etched surfaces was measured, and the effect of waxing on reducing water loss from etched fruit surfaces was investigated using nine different waxes. Laser-labeled fruit stored at 10 C and two relative humidities (95% and 65%) for 5 weeks showed no increase in decay compared with nonetched control fruit, suggesting that laser labeling does not facilitate decay. This was confirmed by experiments where Penicillium digitatum spores were coated on fruit surfaces before and after etching. In either case, no decay was observed.

The researchers concluded that, when compared with sticker-labeled fruit, laser etching provides a relatively tamper-free labeling method, while "the fruit quality remains high as the invasion of the epidermis does not incite decay, provide an avenue for food pathogens, and water loss is easily controlled. The technology will offer the grapefruit industry a safe alternative to adhesive sticker labeling without enhancing decay susceptibility."


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert  

Related biology news :

1. LaserCard Corporation Announces Expansion of Middle East Project
2. Silicon Valley Technology Leaders LaserCard Corporation and Tesla Motors Sign LaserPass Secure Access Deal
3. New insights into how lasers cut flesh
4. Fine-tuning lasers to destroy blood-borne diseases like AIDS
5. Laser can spot illness before symptoms appear
6. Cleaner diesels thanks to laser light
7. Detecting dangerous chemicals with lasers, exploring the brains circuitry with light and more
8. Argonne scientists use lasers to align molecules
9. Laser fluorescence could find life on Mars
10. Life under the laser
11. Sensitive laser instrument could aid search for life on Mars
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Laser etching safe alternative for labeling grapefruit
(Date:4/14/2016)... BioCatch ™, the global ... the appointment of Eyal Goldwerger as CEO. ... Goldwerger,s leadership appointment comes at a time of significant ... of its platform at several of the world,s largest ... unique cognitive and physiological factors, is a winner of ...
(Date:3/31/2016)... 31, 2016   ... the "Company") LegacyXChange is excited to release ... soon to be launched online site for trading 100% ... ) will also provide potential shareholders a sense of ... to an industry that is notorious for fraud. The ...
(Date:3/29/2016)... , March 29, 2016 ... "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased to ... ink used in a variety of writing instruments, ensuring ... of originally created collectibles from athletes on LegacyXChange will ... analysis of the DNA. Bill Bollander ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... YORK , June, 23, 2016  The Biodesign ... to envision new ways to harness living systems and ... Modern Art (MoMA) in New York City ... than 130 participating students, showcased projects at MoMA,s Celeste ... Paola Antonelli , MoMA,s senior curator of architecture ...
(Date:6/23/2016)... ... ... In a new case report published today in STEM CELLS Translational Medicine, doctors ... being treated for breast cancer benefitted from an injection of stem cells derived from ... frequent side effect of cancer treatment. , Lymphedema refers to the swelling ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... the trading session at 4,833.32, down 0.22%; the Dow Jones ... the S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ... BIND Therapeutics Inc. (NASDAQ: BIND ). Learn more ...
(Date:6/23/2016)... 2016  Amgen (NASDAQ: AMGN ) today ... life sciences incubator to accelerate the development of ... space at QB3@953 was created to help high-potential life ... many early stage organizations - access to laboratory infrastructure. ... launched two "Amgen Golden Ticket" awards, providing each winner ...
Breaking Biology Technology: