Detection and quantification of palmolein and palm kernel oil added as adulterant in coconut oil based on triacylglycerol profile
| Autor: | Sanjit Kanjilal, Karabi Goswami, Akhil Chandrakanth Komaram, Rati Ranjan Nayak, Enti Anjaneyulu |
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| Rok vydání: | 2021 |
| Předmět: |
Adulterant
food.ingredient 010401 analytical chemistry Coconut oil 04 agricultural and veterinary sciences 040401 food science 01 natural sciences 0104 chemical sciences 0404 agricultural biotechnology food Area ratio Original Article Palm kernel oil Food science Hplc method Food Science Mathematics |
| Zdroj: | J Food Sci Technol |
| ISSN: | 0975-8402 0022-1155 |
| Popis: | Economically motivated adulteration of expensive coconut oil with low cost oil, like palm kernel oil and palmolein is difficult to detect and quantify by available methods primarily due to their overlapping physicochemical properties with coconut oil. In the present work, a HPLC method has been developed to detect and quantify the degree of adulteration of coconut oil with palmolein and palm kernel oil based on triglyceride structure. The normalized area percentage of trilaurin (C36) among the three major TAG molecular species dilaurin-monocaprin/myristin-caprylin-laurin (C34), trilaurin (C36) and dilaurin-monomyristin (C38) of coconut oil was chosen as detection index for quantifying degree of adulteration of coconut oil with palm kernel oil, while the area ratio of dipalmitoyl-monoolein: trilaurin was chosen as detection index for quantifying adulteration of coconut oil with palmolein. The RP-HPLC based method developed in the present work is effective with a 2-4% minimum detection limit of adulterant oils and 78-98% detection accuracy depending on the degree of adulteration and types of oil. |
| Databáze: | OpenAIRE |
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