Abstract
In the present study, the aflatoxin B1 contamination at various stages of oil refining and in refined oil were carried out. This was subsequently compared with commercial vegetable oil samples. Among the 23 different sunflower oil samples were tested, 10 of them showed posi-tive results to AFB1 and the remaining 13 showed negative results to AFB1. All the refined oil samples were free from AFB1 contamination.
Highlights
Fats and oils are an essential part of our diet, supplying nutrients, improving flavor, aiding in the absorption of vitamins, and providing concentrated sources of energy for our body
A total of 23 different samples of sunflower raw oil, filtered oil and refined oil were collected from the Nayan proteins, Lakshmi industries and Raviprakash refinery (Table 1)
From the local markets of Chennai, 13 different vegetable oil samples were collected and all the oil samples were evaluated for AFB1 contamination
Summary
Fats and oils are an essential part of our diet, supplying nutrients, improving flavor, aiding in the absorption of vitamins, and providing concentrated sources of energy for our body. Strong caustic soda solutions (4N) when mixed with oil will saponify triglycerides, with consequent increase in neutral oil loss, but this loss can be minimized by suitable conditions, and concurrent saponification of pigments with removal via the soap stock is a valuable way of recovering poorer quality oil. Its purpose is to remove, so far as possible, residual free fatty acids, aldehydes and ketones which are responsible for unacceptable oil odours and flavors and, more recently to decolourise the oil by heat decomposition (270oC) of the pigments, and distillation of the decomposition products [1]. Traces of aflatoxins ranging from 3 to 16 μg/Kg in 13 of 28 samples of crude peanut oil imported to Malaya from Hong Kong and Singapore [2,3]. They did not detect any aflatoxins in five samples of refined peanut oil produced by laboratory refining of crude oils which had been found to be contaminated
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