Navigation Links
Market lighting affects nutrients
Date:5/3/2011

This release is available in Spanish.

Many people reach toward the back of the fresh-produce shelf to find the freshest salad greens with the latest expiration dates. But a study led by U.S. Department of Agriculture (USDA) scientists may prompt consumers to instead look for packages that receive the greatest exposure to light--usually those found closest to the front.

The study was led by postharvest plant physiologist Gene Lester while at the Agricultural Research Service (ARS) Crop Quality and Fruit Insects Research Unit in Weslaco, Texas. ARS is USDA's chief intramural scientific research agency.

Lester and colleagues Donald Makus and Mark Hodges found that spinach leaves exposed to continuous light during storage were, overall, more nutritionally dense than leaves exposed to continuous dark. Lester now works at the ARS Food Quality Laboratory in Beltsville, Md.

For the study, the researchers exposed spinach leaves to light similar to the 24-hour artificial fluorescent light received by spinach in packages located at the front of the display case. A second group was enclosed in two-layer-thick, brown-grocery-bag paper to represent the "dark treatment."

Both experimental groups were housed in market-type, light-transmissible polymer tubs with snap-tight lids and were kept in walk-in storage chambers at 4 degrees Celsius, the same temperature at which markets currently display packaged spinach. The light reaction of photosynthesis is not temperature-dependent and can occur at 4 degrees C in the right type of light.

The researchers found that the continuous light affected the leaves' photosynthetic system-resulting in a significant increase in levels of carotenoids and vitamins C, E, K, and B9, or folate.

While the simulated retail light conditions actually helped the stored leaves gain in content of several human-healthy vitamins, some wilting occurred after three days of storage in flat-leaf spinach, but not crinkled-leaf types.

Results from this work were published in the Journal of Agricultural and Food Chemistry.


'/>"/>

Contact: Rosalie Marion Bliss
rosalie.bliss@ars.usda.gov
301-504-4318
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

Related medicine news :

1. New database to help track quality of medicines in global markets
2. Menthol Cigarettes Marketed as Healthier, FDA Panel Says
3. Smart lasers could make cancer biopsies painless, help speed new drugs to market
4. Inverse benefits due to drug marketing undermine patient safety and public health
5. Weight-Loss Drug Meridia Pulled From U.S. Market
6. Media detective tool empowers children to skirt alcohol and tobacco marketing messages
7. Pharmaceuticals: A market for producing lemons and serious harm
8. Avandia Raises Heart Risk But Should Stay on Market, FDA Panel Finds
9. Hopkins faculty lead development of report to FDA on ethical, scientific issues related to post-market clinical trials
10. IVR Technology Group Announces MobileMarketing123.com
11. Doctors and Medical Groups Increasingly Embrace Physician Marketing to Counter Changes in Health Care
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/25/2017)... Greifensee, Switzerland (PRWEB) , ... April 25, 2017 ... ... product innovation targets, they rely on contracted partners to help with process innovation ... years of combined drug formulation experience along with state-of-the-art analytical equipment in support ...
(Date:4/25/2017)... ... April 25, 2017 , ... Somnoware, a leading ... patient care management module. Using this new feature, sleep physicians can now predict ... on continuous positive airway pressure (CPAP), oral, or other forms of sleep apnea ...
(Date:4/24/2017)... ... April 24, 2017 , ... Emmanuel College is ... professionals advance their careers. Beginning in the fall of 2017, Emmanuel’s program will allow ... as few as 16 months and for as little as $14,528. These changes will ...
(Date:4/24/2017)... ... April 24, 2017 , ... As part of the nationwide ... honor the victims of the Holocaust and Nazi persecution, Center for Medicine after ... Auschwitz on its CMATH Champions trip to Germany and Poland next week. , The ...
(Date:4/24/2017)... (PRWEB) , ... April 24, 2017 , ... Sean Fay ... Oxiclean, Space Bag, Sonicare Toothbrush, Juiceman Juicer, and the George Foreman Grill (which sold ... any other marketer in the last 25 years. , Now, due to changes in ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... 20, 2017  Zimmer Biomet Holdings, Inc. (NYSE and ... announced that it will be participating in the Deutsche ... InterContinental Hotel in Boston, Massachusetts ... at 11:20 a.m. Eastern Time. A live ... Biomet,s Investor Relations website at http://investor.zimmerbiomet.com .  The ...
(Date:4/20/2017)... , April 20, 2017  RXi Pharmaceuticals ... innovative therapeutics that address significant unmet medical needs, ... from the Company,s consumer product development program, based ... the Society for Investigative Dermatology (SID) 76 th ... advance and promote the sciences relevant to skin ...
(Date:4/20/2017)... April 20, 2017  CVS Pharmacy, the retail ... a new store design to enhance the retail ... food, health-focused products and expanded beauty selections paired ... customers discover new offerings. Together with its innovative ... of the customer experience at CVS Pharmacy.  ...
Breaking Medicine Technology: