Effects of conventional heating on the stability of major olive
oil phenolic compounds by tandem mass spectrometry and isotope dilution assay.
Not exact matches
The research has been highlighted in many publications including the Food Chemistry Journal (www.elsevier.com) titled «Comparison of the
phenolic - dependent antioxidant properties of coconut
oil extracted under cold and hot conditions» by Prof. Kapila Seneviratne, Chamil D. Hapuarachchi and Sagarika Ekanayake; Food Science and Technology of Sage Publications titled «Antioxidant activities of the
phenolic extraction of seeds and seed hulls of 5 different species»; International Journal of Food Science and Technology of the United Kingdom; and the International Food Research Journal of Malaysia.
Many people are also unaware of what compounds are available in coconut
oil as no extensive studies have been conducted as in the case of olive
oil which has been established as lowering the risk of coronary heart disease through the
phenolic anti-oxidants it contains.
«We found that coconut
oil rich with
phenolic compounds effectively increased the anti-oxidant capacity in blood.
«There is a possibility that hydrogenated or refined
oil has been used in these experiments which can lead to varying results,» he says, explaining that the
phenolic - antioxidants maybe getting lost due to the refining process.
«Fortunately, most of the
phenolic anti-oxidants present in coconut
oil are also thermally highly stable,» he pointed out, explaining that the reason for a greater composition of anti-oxidants is that simmering for a long time at a high temperature dissolved more anti-oxidants into the
oil.
But, he points out, it is important to know which type of
oil has been used for research because depending on the extraction method, the
phenolic - antioxidant composition may vary.
The
phenolic content alone in virgin coconut
oil is 7 times higher than that of refined coconut
oil.
It was also concluded that the highest amount of
phenolic - antioxidants was found in traditional coconut
oil,» he says.
«Our research has proven that coconut
oil in fact does contain, like many others such as olive
oil,
phenolic anti-oxidants which are known to reduce the risk of coronary heart disease,» says Prof. Kapila Seneviratne attached to the Department of Chemistry of the University of Kelaniya.
Providing a way to improve the quality of copra
oil, he says the answer is incorporating important
phenolic compounds from poonac (the coconut cake usually given to cattle) into copra
oil.
The extraction and refining conditions of copra
oil can also be modified to allow more
phenolic anti-oxidants to mix with copra
oil.
Heating the coconut milk emulsion at 55 C may enhance the incorporation of these
phenolics into the
oil; this may be the reason for increased amounts of polyphenols in Virgin Coconut Oil extracted by wet processi
oil; this may be the reason for increased amounts of polyphenols in Virgin Coconut
Oil extracted by wet processi
Oil extracted by wet processing.
Testing done in independent laboratories on coconut
oil antioxidants reveals higher levels of
phenolic antioxidants than other coconut oils.
Using virgin olive
oil is also another effective method to remove breast stretch marks because the
oil possesses many
phenolic compounds, and fatty acids.
Studies have demonstrated the anti-inflammatory and antioxidant properties of
phenolic compounds of virgin olive
oil.
This product is standardized for carvacrol and thymol, the principal
phenolic compounds in oregano, with each softgel providing 36 mg carvacrol and thymol from an impressive 60 - 75 % carvacrol oregano
oil.
The study revealed that frying vegetables in extra virgin olive
oil improves their antioxidant capacity as well as the amount of
phenolic compounds, which help to prevent chronic diseases like diabetes and cancer.
Olives and olive
oil in cancer prevention The antioxidant / anticancer potential of
phenolic compounds isolated from olive
oil.
The total content of phenols is increased even more when the
phenolic content of the raw vegetable is high and olive
oil is used in the process, with boiling not affecting the final concentration.
The heat transfer by means of
oil increases the quantity of
phenolic compounds in veggies, as opposed to heat transfer by means of water.
A scientific study has proven that Mediterranean diet vegetables fried in extra virgin olive
oil have a greater increase in the
phenolic fraction compared to other cooking methods.
Frying is the cooking method which produces the greatest increase in the
phenolic fraction, meaning an improvement in the cooking process although energy density is increased by means of the absorbed
oil.
Hydrothermal cooking methods can be advised when the food is eaten along with the cooking water, as the addition of olive
oil improves the
phenolic profile and makes up for the deficiencies of the raw food.
Phenols are transferred from olive
oil to the veggies, enhancing them with
oil - exclusive
phenolic compounds which aren't found in raw veggies.
«Fortunately, most of the
phenolic anti-oxidants present in coconut
oil are also thermally highly stable,» he pointed out, explaining that the reason for a greater composition of anti-oxidants is that simmering for a long time at a high temperature dissolved more anti-oxidants into the
oil.
Oleuropein is a
phenolic antioxidant which is responsible for many of olive
oil's heart health benefits.
Anti-inflammatory benefits of virgin olive
oil and the
phenolic compound oleocanthal.»
The most abundant
phenolic compound present in cloves» essential
oil is eugenol, which is not only responsible for the aromatic scent of the flower buds, but it is also the main active ingredient behind their antimicrobial, antifungal, and analgesic properties.
Olive
oil contains many antioxidants, but the most famous is oleuropein, a
phenolic compound which not only lowers inflammation but also free radical activity (study).
Because the
phenolic acids in olive
oil have been shown to have antioxidant benefit -LSB-...]
The
phenolic compounds in olive
oil are shown to have a protective effect in vitro to our DNA.
Researchers concluded that, «Overall, these results suggest that [
phenolic compounds] may efficiently prevent the initiation step of carcinogenesis in vivo, because the concentrations effective against the oxidative DNA damage could be easily reached with normal intake of olive
oil.»
It's a
phenolic antioxidant found naturally in the olive fruit,
oil, and leaf, but mostly the leaf.
Elattria cardamom seeds are rich in volatile
oil, which mainly includes
phenolic and flavonoid components.
Olive
oil is rich in healthy monounsaturated fatty acids (in particular oelic acid) as well as
phenolic compounds, which are amazing antioxidants; these characteristics mean that virgin olive
oil has great anti-inflammatory and positive cardiovascular effects.