Preservatives in syrup
INTRODUCTION
Sodium and potassium salts of benzoic acid and sorbic acid are well-known food preservatives. The permitted amount in food is strictly regulated with the level depending on the food group. As an example, European regulation EC 1333/2008 sets the rules on food additives: definitions, conditions of use, labelling and procedures.
ABSTRACT
Determination of sodium benzoate (CAS 532-32-1) and potassium sorbate (CAS 24634-61-5) on an ARION® Plus C18, 5.0 µm column (250 mm × 4.6 mm, ARI-5720-LM46). Isocratic elution with citrate buffer pH 4.1 / ACN / methanol 70/20/10 (v/v) at 1.5 ml/min and 30 °C, UV detection at 240 nm. Both preservatives are baseline separated at about 7 and 8.5 minutes; the note shows a standard mixture and a fruit syrup sample.
Industries
Food & Beverage
Category
HPLC columns
Product
Arion Plus C18
Part number
ARI-5720-LM46
Analytes
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- Sodium benzoate CAS number 532-32-1
- Potassium sorbate CAS number 24634-61-5
