E101i - Riboflavin

Origin

Riboflavin, also known as Vitamin B2, is a water-soluble vitamin naturally occurring in various plants and animal sources. Commercially, it is produced through microbial fermentation, often using genetically modified organisms (GMOs). The fermentation process involves specific strains of yeast or bacteria that are cultivated in a nutrient-rich medium to produce riboflavin. After fermentation, the riboflavin is extracted, purified, and dried to form a crystalline powder.

Usage

As a food additive (E101i), riboflavin is primarily used as a colorant, providing a yellow-orange hue to foods and beverages. It is also added to fortify foods, increasing their nutritional value, particularly in products like breakfast cereals, flour, and infant formulas. Riboflavin plays a crucial role in various metabolic processes, acting as a precursor to the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are essential for energy production, cellular growth, and the metabolism of fats, carbohydrates, and proteins. It is also used in pharmaceutical preparations and dietary supplements.

Side Effects

Riboflavin is generally considered safe for consumption. It is a water-soluble vitamin, meaning that excess amounts are typically excreted in the urine, reducing the risk of toxicity. No significant adverse effects have been consistently associated with high intakes of riboflavin from food sources or supplements. However, very high doses (significantly exceeding the recommended daily intake) may cause a harmless yellow discoloration of the urine. The European Food Safety Authority (EFSA) has not established a numerical Acceptable Daily Intake (ADI) for riboflavin due to its low toxicity and essential role in human health. The US FDA also considers riboflavin as GRAS (Generally Recognized As Safe) when used in accordance with good manufacturing practices.