A natural antioxidant found in grain bran could preserve food longer and replace synthetic antioxidants currently used by the food industry, according to researchers at Penn State.
“Currently, there’s a big push within the food industry to replace synthetic ingredients with natural alternatives, and this is being driven by consumers,” said Andrew S. Elder, doctoral candidate in food science. “Consumers want clean labels — they want synthetic chemical-sounding ingredients removed because of the fact that they don’t recognize them, and that some of them (the ingredients) have purported toxicity.”
The Penn State researchers studied a class of compounds called alkylresorcinols (AR). Plants such as wheat, rye and barley produce ARs naturally to prevent mold, bacteria and other organisms from growing on the grain kernels. The researchers wondered if ARs could also preserve food in the same way from a chemical standpoint.
Along with using more natural ingredients, the food industry is also supplementing more foods with healthy oils rich in omega-3 fatty acids. Adding these healthy oils to foods that normally would not contain them could boost the health benefits of these foods to consumers. However, omega-3 rich oils have a shorter shelf life, which could cause these foods to spoil more rapidly.
“Most people consume omega-3s from marine sources,” said Elder. “As they break down, they can make the product smell and taste fishy. Consumers then throw these products out and don’t buy them again, and this results in an economic loss.”
Antioxidants are compounds that slow the rate at which omega-3 fatty acids degrade, preserving their health benefits and preventing food from spoiling as quickly. While consumers demand more natural ingredients, the food industry has struggled to find natural antioxidants that are as effective as synthetic ones.
“There are not many natural alternatives for synthetic antioxidants,” said Elder. “Our work is focused on identifying new natural antioxidants to extend the shelf life of food and meet consumer demands.”
ARs have health benefits for humans as well and can help protect against cancer, according to a review published in European Food Research and Technology, making them ideal natural additives. ARs also come from the bran layer of cereal plants, which the food industry usually discards or uses for animal feed.
“Bran is often a waste stream,” said Elder. “We’re taking something that’s usually discarded in a waste stream and turning it into something useful.”
The team developed a technique to extract and purify ARs from rye bran, then studied how well ARs were able to preserve omega-3-rich oils in emulsions, where two fluids do not fully mix — for example, vinegar and oil. The researchers chose to study AR action in emulsions because most people consume oils as emulsions, such as salad dressings. The researchers reported their findings online in Food Chemistry, and the study will be published in the January print edition.
The researchers found that ARs did act as antioxidants in an emulsion, preventing omega-3 oils from spoiling as rapidly as they did in emulsions with no antioxidants added. Then, they compared ARs to two antioxidants widely used by the food industry — alpha-tocopherol or Vitamin E, a natural antioxidant; and butylated hydroxytoluene, a synthetic antioxidant. However, ARs were not as effective as either the natural or the synthetic antioxidant.
Although the ARs did not work as well as other antioxidants in this round of experiments, the researchers noted that their AR extracts were not completely pure, which could have reduced the effectiveness of the ARs. Also, the researchers used a blend of different ARs that had different molecular structures. Future work looking at different types of ARs will reveal whether an individual AR type is more or less effective than conventionally-used antioxidants.
“We’re trying to identify natural antioxidants that are consumer-friendly, safe and effective,” said Elder. “We hope that one day this work will lead to ARs being available on the market and provide more options for the food industry to use.”
The Latest on: Natural antioxidant
via Google News
The Latest on: Natural antioxidant
- Anti-oxidative function of follicular fluid HDL and outcomes of modified natural cycle-IVFon September 6, 2019 at 2:19 am
From 253 women undergoing modified natural cycle (MNC)- IVF at a single academic centre ... lipid hydroperoxides and thiobarbituric acid reactive substances) and has a higher total antioxidant ...
- Support Eye Health with the Help of Natural Ingredients Present in Sunsafe Rx Pillson September 3, 2019 at 9:00 am
Please use care when in the sun. About Sunsafe Rx Sunsafe Rx is "supplemental sun protection in a pill" and is a natural, anti-aging nutritional supplement made with antioxidants clinically shown to ...
- 4 Natural Sweeteners That Are Better Than Sugar, According To An RDon August 31, 2019 at 4:33 am
So go natural with one of these four cleaner natural sugar options ... they all contain less fructose than traditional table sugar and more nutritional benefits (think: antioxidants, healthy minerals, ...
- LivTru Launches Antioxidant Curcumin Wateron August 30, 2019 at 9:55 am
Born in Southern California, the LivTru brand is committed to crafting a refreshing, natural performance beverage for those who never stop pushing their limits. Specially formulated with a unique ...
- Tatsu Tea Offers Antioxidant-Rich Matcha Green Teaon August 30, 2019 at 6:20 am
Antioxidants help the body's cells fight off free radicals, also known as oxidative stress. Free radicals are man-made and natural elements that cause harm to cells. Tatsu Tea is now advising on the ...
- Farsali's Unicorn Antioxidant Lip Mask Is The Brand's First Lip Product & It Smells Like CUPCAKES — EXCLUSIVEon August 29, 2019 at 7:20 am
"Unicorn Lip is formulated with 100% natural vanillin to soothe ... Then, there's the blueberry and elderberry inside that are powerful antioxidants to ensure skin health. Courtesy of Farsali Like ...
- Graceful aging with natural ingredientson August 12, 2019 at 8:05 am
Bitter melon (Momordica charantia) fruit extract supported healthy cellular turnover, or apoptosis, and provided antioxidant support to protect DNA from the damaging free radicals that play a role in ...
- 4 Natural Antioxidants to Tackle Air Pollutionon August 9, 2019 at 2:10 am
TEMPO.CO, Jakarta - Severe air pollution in several big cities including Jakarta is extremely worrying as it causes negative impacts on human health such as free radicals that have been linked to lung ...
- Food Antioxidant market is Booming Worldwide with Key Players: BASF SE, DSM, Omega Protein Corporation, DEVA Nutrition and ADMon August 6, 2019 at 11:43 pm
Rising awareness for a healthy lifestyle along with growing demand for natural antioxidants should drive fatty acids for food applications market growth. Omega-3 & 6 fatty acids in food products and ...
- Natural antioxidant helps improve immune-based therapies by modulating T-cellson July 8, 2019 at 1:05 pm
Shikhar Mehrotra, Ph.D. and Xue-Zhong Yu, M.D., National Institutes of Health-funded researchers at the Medical University of South Carolina (MUSC), have discovered a way to improve immune-based ...
via Bing News