citric acid as food preservative

Understanding Emulsifier E471 A Comprehensive Overview

Despite its widespread use, titanium dioxide has faced increasing scrutiny regarding its safety. Studies have raised concerns about its potential health effects, especially when ingested in nanoparticle form. Some research has suggested that titanium dioxide nanoparticles could lead to inflammation and other adverse effects in the body when accumulated over time.

As a food additive, potassium sorbate is used as a preservative in concentrations of 0.025–0.100%, which in a 100 g serving yields an intake of 25–100 mg. In the United States, no more than 0.1% is allowed in fruit butters, jellies, preserves, and related products. 

Though any listed ingredient is FDA-approved or classified generally regarded as safe, groups like the American Academy of Pediatrics have called into question the agency's approval processes and effects on children's health. Others take issue with the chemicals used in extracting food ingredients from natural sources.

Sodium benzoate is the sodium salt of benzoic acid and is naturally found in various fruits, including cranberries, prunes, and cinnamon. When used in foods and beverages, it acts as a preservative by converting to benzoic acid in acidic environments (pH below 7). The compound is particularly effective in products with a low pH, making it ideal for acidic foods such as pickles, sauces, and soft drinks.