I make my own coconut oil and never found any commercial product that i could
tolerate. I have tried several brands,but did not try refined oil.
I think Aflatoxin in coconut oil could be a possible
source of problem. I do not know if Aflatoxin is removed in all refined coconut oil.
But, there are methods that can remove Aflatoxin from coconut oil.
One study in Philippine found that 60 percent of the 25 samples had Aflatoxin at
an average rate of 3 microgram per KG and two refined coconut oil were free of it.
In India ,they found 5 to 100 mcg/kg aflatoxin in coconut oil .
Here are few links related to this issue.
tolerate. I have tried several brands,but did not try refined oil.
I think Aflatoxin in coconut oil could be a possible
source of problem. I do not know if Aflatoxin is removed in all refined coconut oil.
But, there are methods that can remove Aflatoxin from coconut oil.
One study in Philippine found that 60 percent of the 25 samples had Aflatoxin at
an average rate of 3 microgram per KG and two refined coconut oil were free of it.
In India ,they found 5 to 100 mcg/kg aflatoxin in coconut oil .
Here are few links related to this issue.
The white meat from the coconut is dried directly or indirectly by various methods like sun-drying, tapahan or kukum method. High moisture copra can easily be contaminated with aflatoxin.
CARCINOGENICITY
Aflatoxin are known to be human carcinogens based on sufficient evidence of carcinogenocity in humans (IARC 1987, 1993). Aflatoxicoses is a poisoning resulting from ingestion of aflatoxin-contaminated food in feed. A case-control study in the Philippines, where mean aflatoxin contamination levels in dietary items were established and individual levels of aflatoxin consumption were determined retrospectively, demonstrated an increased, dose-related risk of developing hepatocellular cancer in persons with higher ingestion of aflatoxin.
http://www.fao.org/docrep/meeting/006/a ... 729e00.htm
Chemical Detoxification of Aflatoxin-containing Copra
ABSTRACT
Aflatoxin-containing copra at moisture contents of 24% and 7% was effectively detoxified by ammonium hydroxide (> 97% and 89% reduction, respectively). Detoxification was accomplished in 5 days using 1.5% ammonium hydroxide (ammonia/copra); in 10 days using 1.0% and in 15 days using 0.5%. The initial aflatoxin B1 concentration of 500 ppb (9% moisture) was reduced to ≤ 20 ppb. Detoxification trials using a screw expeller showed 67% reduction in aflatoxin content of the oil with 1.0% ammonia.
http://onlinelibrary.wiley.com/doi/10.1 ... x/abstract
A pilot plant for detoxification of aflatoxin B1-contaminated coconut oil by solar irradiation
World Journal of Microbiology and Biotechnology (Impact Factor: 1.35). 11/1985; 1(4):333-343. DOI: 10.1007/BF01553418
ABSTRACT In coconut oil naturally contaminated with aflatoxin B1, more than 85% of the toxin is present in the soluble form, the remainder occuring in the sediment. This aflatoxin is detoxified when the oil, in a static layer less than 15 mm thick is exposed to solar radiation. A pilot plant, designed to take account of the viscosity and flow characteristics of the oil, was constructed for the exposure of thin layers of oil (2 mm or less) flowing under gravity. At aflatoxin concentrations between 166 and 1250 jug/kg, 75% of the toxin was degraded on exposure to solar radiation of 10 cal/cm2; total detoxification was achieved on repeated exposure. The naturally contaminated coconut oil after exposure to solar radiation did not contain any residual aflatoxins or fluorescent compounds which might have been derived from original aflatoxin B1.http://www.researchgate.net/publication ... rradiation