Navigation Links
Laser etching safe alternative for labeling grapefruit

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
American Society for Horticultural Science

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:
Related Image:
Laser etching safe alternative for labeling grapefruit
(Date:11/19/2015)... YORK , Nov. 19, 2015  Although some ... market is dominated by a few companies, according to ... companies own 51% of the market share of the ... The World Market for Molecular Diagnostic s ... "The market is still controlled by one company ...
(Date:11/17/2015)... LIVERMORE, Calif. , Nov. 17, 2015  Vigilant ... has joined its Board of Directors. ... Vigilant,s Board after recently retiring from the partnership at ... owning 107 companies with over $140 Billion in revenue.  ... performance improvement across all the TPG companies, from 1997 ...
(Date:11/12/2015)... , Nov. 11, 2015   Growing need ... analytical tools has been paving the way for ... determination of discrete analytes in clinical, agricultural, environmental, ... being predominantly used in medical applications, however, their ... sectors due to continuous emphasis on improving product ...
Breaking Biology News(10 mins):
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... ... Program that includes over 2,000 technical presentations offered in symposia, oral sessions, ... and applied spectroscopy, covers a wide range of applications such as, but not ...
(Date:11/25/2015)... ANNAPOLIS, Md. , Nov. 25, 2015  PharmAthene, ... of Directors has adopted a stockholder rights plan (Rights ... its net operating loss carryforwards (NOLs) under Section 382 ... --> --> PharmAthene,s use of its ... an "ownership change" as defined in Section 382 of ...
(Date:11/25/2015)... QUEBEC CITY , Nov. 25, 2015 /PRNewswire/ ... "Company"), affirms that its business and prospects remain ... , Zoptrex™ (zoptarelin doxorubicin) recently received DSMB ... program to completion following review of the final ... met Phase 2 Primary Endpoint in men with ...
(Date:11/24/2015)... 24, 2015  Asia-Pacific (APAC) holds the third-largest ... market. The trend of outsourcing to low-cost locations ... higher volume share for the region in the ... margins in the CRO industry will improve. ... ( ), finds that the market earned ...
Breaking Biology Technology: