Processed
Citric Acid
Citric acid is a sharp, crystalline organic acid found naturally in citrus and produced at scale by fermenting sugars with Aspergillus niger. In food manufacture it is the workhorse acidity regulator: it brightens soft drinks and jams, chelates metals that dull colour, and sets the pH window for jellies and bottled sauces. Food-grade crystals dissolve cleanly in water with a clean lemon-like sourness and almost no aroma of their own. Anhydrous and monohydrate grades differ mainly in water content and bulk density. Kitchen use is light-handed—too much tastes raw and metallic—while industry doses by target pH and buffer capacity. Store dry; the powder cakes if it picks up moisture.
Also known as: E330, Citric acid (E330), Citric acid, Citric acid (fermentation grade), Ácido cítrico
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Characteristics
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Nutrition and pairings
Nutrition
Typical values per 100 g edible portion. Nutrient names open the reference page.
Nutrition Facts
Per 100 g edible portion
Amount per 100 g
- Total Fat 0.93 g
- Saturated Fat 0.5 g
- Trans Fat 0 g
- Monounsaturated Fat 0.19 g
- Polyunsaturated Fat 0.2 g
- Cholesterol 0 mg
- Sodium 19.2 mg
- Salt 0.05 g
- Total Carbohydrate 95.3 g
- Dietary Fibre 0 g
- Total Sugars 81.2 g
- Complex / starch 1.88 g
- Protein 2.06 g
- Water 4.68 g
- Energy 353 kcal
- Water 4.68 g
- Carbohydrates 95.3 g
- Sugars 81.2 g
- Monosaccharides 56.8 g
- Disaccharides 24.4 g
- Starch 1.88 g
- Amylose 0.47 g
- Amylopectin 1.41 g
- Digestible Starch 1.6 g
- Resistant Starch 0.19 g
- Protein 2.06 g
- Fat 0.93 g
- Saturated Fat 0.5 g
- Monounsaturated Fat 0.19 g
- Polyunsaturated Fat 0.2 g
- Vitamins 25 mg
- Vitamin A 20 µg
- Vitamin B1 — Thiamine 0.01 mg
- Vitamin B2 — Riboflavin 0.02 mg
- Vitamin B3 — Niacin 0.11 mg
- Vitamin B5 — Pantothenic Acid 0.05 mg
- Vitamin B6 0.02 mg
- Vitamin B7 — Biotin 0.2 µg
- Vitamin B9 — Folate 2 µg
- Vitamin C 2 mg
- Vitamin E 0.1 mg
- Vitamin K 0.5 µg
- Minerals 302 mg
- Major Minerals 295 mg
- Trace Minerals 6.7 mg
- Salt 0.05 g
- Sodium Chloride 0.05 g
Vitamins
vitamin-c: 2 · vitamin-a: 20 · vitamin-b1-thiamine: 0.01 · vitamin-b2-riboflavin: 0.02 · vitamin-b3-niacin: 0.11 · vitamin-b5-pantothenic-acid: 0.05 · vitamin-b6: 0.02 · vitamin-b7-biotin: 0.2 · vitamin-b9-folate: 2 · vitamin-e: 0.1 · vitamin-k: 0.5 ·
Minerals
Sodium: 19.15 · Potassium: 218 · Calcium: 58 · Iron: 1.3 · Zinc: 0.4 · Iodine: 5 ·
Refined processed sweeteners and additives are energy-dense carbohydrate with little else.
History
Carl Wilhelm Scheele isolated citric acid from lemon juice.
Citrus-extraction plants supplied crystal citric acid for soft drinks and confectionery.
Industrial mould fermentation made citric acid independent of citrus harvests.
Anhydrous and monohydrate food grades became standard acidity regulators worldwide.