Navigation Links
Olive Leaf Juice Could Be Edible Oil Antioxidant

Olive juice, obtained by pressing olive leaves, may act as an antioxidant to prolong the frying life of frying oils, suggests a study using sunflower oil. //

"The outcome of the present study suggests that crude olive juice can be used in practical operation to extend the frying life of frying oils," wrote lead author Radwan Farag from Cairo University.

The use of natural alternatives to synthetic preservatives, such as like butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT), to slow down the oxidative deterioration of food is gaining interest.

According to a 2003 report by Frost and Sullivan, the synthetic antioxidant market is in decline, while natural antioxidants, such as herb extracts, tocopherols (vitamin E) and ascorbates (vitamin C) are growing, pushed by easier consumer acceptance and legal requirements for market access.

This natural antioxidant range could potentially include the polyphenol-rich extract from olive leaves, suggests new research published in the International Journal of Food Science and Technology.

The Egyptian researchers compared the antioxidant performance of 400, 800, 1600, and 2400 ppm of olive polyphenols with BHT (200 ppm) on the stability of sunflower oil under heating conditions (180 degrees Celsius, five hours per day for five days).

Measures of physical and chemical characteristics as a result of adding the antioxidant ingredients showed that no significant effect on the colour of the oil occurred by addition of any level of olive polyphenols. The formation of peroxides in the oil as a result of heating also decreased with increasing olive juice concentration, said the researchers.

"In fact, the peroxide value of the heated sunflower oil mixed with 2400 ppm of polyphenolics at the end of the heating process was about 11.3, 9.2, 2.8 and 11.4 times lower than that of the sunflower oil mixed with 400, 800, 1600 and control, respectively," they w rote.

Using the thiobarbituric acid (TBA) assay to measure lipid oxidation, the researchers report that the 400 ppm level of olive polyphenolics exhibited almost the same antioxidant activity as 200 ppm BHT, while 800 ppm of olive polyphenolics was superior to the synthetic antioxidant.

"Therefore, one would recommend adding 800 ppm of the phenolic compounds of olive leaf juice to increase oil stability," wrote Farag.

"The data indicate that the addition of olive leaf juice to sunflower oil heated at 180 degrees Celsius induced remarkable antioxidant activity and at 800 ppm level was superior to that of BHT in increasing sunflower oil stability," concluded the researchers.

The cost of the olive leaf juice could also add to the attractiveness of using the juice as an ingredient with antioxidant activity, suggested the researchers.

"One has to point out that the main goal of this work was to use a very cheap natural source to as antioxidant agent," wrote Farag. "It is of interest to note that olive leaves used as a natural source for antioxidants in the present study are obtained by the annual pruning of olive plants."

Antioxidant revenues are predicted to grow from €46m ($55m) in 2004 to €58m ($70m) in 2008, according to Frost and Sullivan.

Source-Bio-Bio Technology
'"/>




Related medicine news :

1. Olive oil does good
2. Olive Oil Found To Offer A Protective Effect Against Breast Cancer
3. Olive oil can do more good than just adding taste to your dish
4. Olive Oil Found To Preserve Cardiovascular Health by Improving Function
5. Olive oil protects the heart
6. Virgin Olive Oil – Good for Hear
7. Over 300 Ill After Eating at Olive Garden, Indianapolis
8. Olive Oil Emulsions Prevent Cardiac Bypass Surgery
9. Olive Oil Addition in Diet may Cut Cancer Risk
10. Italian Olives Recalled from Canada
11. FDA Urgently Warns Consumers About Health Risks of Potentially Contaminated Olives
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2021)... , ... March 29, 2021 , ... ... the 21st Century , A Virtual Workshop Presented by WCG FDAnews and Cerulean ... 4:30 pm EDT, https://wcg.swoogo.com/modern-sop-and-quality-systems , Are one’s SOPs written for the ...
(Date:3/30/2021)... ... March 29, 2021 , ... According to data released ... reproductive age (13-44) in need of publicly funded contraception live in counties impacted by ... Colorado’s 64 counties have lost some of their Title X resources. , The ...
(Date:3/30/2021)... ... March 29, 2021 , ... Health Literacy Innovations (HLI), a ... confusion due to low health literacy today announces a new partnership with the ... work with ACAP’s member Safety Net Health Plans, those that provide comprehensive health ...
(Date:3/30/2021)... ... ... Dr. Colin Campbell is proud to announce the 1 year anniversary in their new state ... internal medicine and is a primary care specialist who has been practicing for 23 years. ... keep South Jersey healthy one patient at a time. , “Over the past year, Dr. ...
(Date:3/30/2021)... ... March 30, 2021 , ... The COVID-19 ... and survivors; their families; and their caregivers. Crossroads4Hope is addressing the needs of ... emotional support system, MyGo2Support, which meets needs of people impacted by cancer, no ...
Breaking Medicine News(10 mins):
(Date:3/30/2021)... ... March 29, 2021 , ... The University of Texas Health Science Center ... San Antonio Multispecialty and Research Hospital, a destination center for research and treatment of ... In a nod to the COVID-19 pandemic, the ceremony was held virtually. , William ...
(Date:3/30/2021)... ... March 29, 2021 , ... Iora Health ... primary care, has partnered with Devoted Health , one of the fastest-growing ... across Maricopa County and provides seniors with the highest-quality care and experience possible, ...
(Date:3/30/2021)... CITY (PRWEB) , ... March 29, 2021 , ... ... has joined the Vaccine Credential Initiative (VCI), a group bringing together leading health ... record of vaccination status, based on open, interoperable standards. By joining the VCI ...
Breaking Medicine Technology: