suppose a part is saying they require vitamin A=2600μg RE/100g in vegetable oil. I have to convert this unit to gram/ton. Please help me how to calculate the amount ?
Dear Ghulam Hussain ,
As you know Vitamin A is a “container concept”, it can mean various substances like retinol and beta-carotene. There are conversion tables stating that one RE is defined as the biological activity associated with 1 µg of all-trans retinol and 6 µg all-trans ß-carotene depending on which data used (see for example https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/vitamin-a ).
2600 µg RE/100 g equals 26 g retinol/ton oil.
Since 26 g/ton equals 26 g/1000 kg this equals 26 g/1000000 g means 26000000 µg/1000000 g means 2600 µg/100 g.
Best regards.
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