Authors
Preeti Pandey, Dr. Munish Mishra, Dr. Lav Kesharwani
Abstract
One of the sources of essential fatty acids is edible oils and fats which also add special flavours and helps in maintaining the integrity of the cell membrane. Due to its crucial importance in our day to day life it has been easily prone to various kind of adulterants. The prime cause of the adulteration is the plain price variations and economic gain. Mustard oil is one of preferred edible oil in northern India. Adulterants like Aregemone oil, rice bran oil, palm oil, linseed oil etc., are frequently used to adulterate the Mustard oil. Light pale cheaper oils, dyed with synthetic dyes along with the addition of allyl isothiocyanate which adds mustard pungency factor, are sometimes sold under the name of mustard oil. In the current paper simple, rapid and reliable colour test such as improved nitric acid ,azo dye test, bauduoin test, halpen’s test and solvent separation techniques have been stated and TLC was performed and calculated Rf value was compared with the standard ones. 20 different samples were collected from the local area and analysed. After analysis it was found that 80% samples were found adulterated with more than one adulterants. Keywords: Adulteration, Mustard oil, Thin layer chromatography
Introduction
A vegetable oil is mixtures of triglycerides extracted from a plant. It has been part of human culture from ancient times. The term "vegetable oil" can be closely defined only to oils that are extracted from the plant parts which are liquid at room temperature. The vegetable oils that are condensed or solid at room temperature are often known as vegetable fats.
Vegetable oils are composed of triglycerides, as compared with waxes which lack glycerin in their structure. Although, many plant parts may yield oil, and in commercial practices oil is extracted primarily from seeds. To produce vegetable oils, the oil bearing plant parts is removed and collected, then crushing and pressing is perform to extract the oil.
Mechanical Extraction
For the extraction purpose, mechanical methods (crushing or pressing) or chemical methods can be used latter one is frequently in use now a days. Then, extracted oil is purified and if required refined and chemically treated. Mechanical method of extraction oils is normally practiced from thousands of years (e.g, olive, coconut etc.,) and preferred by most of the health conscious customers of the United States and Europe. Different types of mechanical extraction are like expeller-pressing extraction is one of the widely used, though the screw press, ram press and Ghani are also available in the same field.
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How to cite this article?
| APA Style | Pandey, P. Mishra, M. and Kesharwani, L. (2019). Examination of Various Adulterants in non-branded Mustard Oil for Forensic Considerations. Academic Journal of Forensic Sciences, 2(2), 36-50. |
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