Comparing E210 - Benzoic acid vs E425II - Konjac glucomannan
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Interest over time for 2 keywords in U.S. during the last 10 years.
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Popular questions
Is benzoic acid soluble in water?
Only sparingly—about 3 g per liter at room temperature; its solubility increases in hot water and it dissolves readily in many organic solvents.
Is benzoic acid polar?
It has a polar carboxyl group but a nonpolar aromatic ring, so overall it’s only weakly polar; its benzoate salt is much more polar and water‑soluble.
Is benzoic acid a strong acid?
No—it's a weak acid, with a pKa of about 4.2.
What is the melting point of benzoic acid?
About 122–123 °C (251–253 °F).
Is benzoic acid bad for you?
At approved food levels it’s considered safe, with an ADI of 0–5 mg/kg body weight/day; some people may experience irritation or hypersensitivity, and benzene formation in certain acidic drinks is monitored and kept very low.
What is glucomannan konjac root?
Glucomannan is a soluble dietary fiber extracted from the konjac plant’s corm (Amorphophallus konjac), used in foods as a thickener, stabilizer, and gelling agent (E425ii).
How is glucomannan konjac made?
Dried konjac corms are milled, the water‑soluble glucomannan is extracted, then purified (typically by filtration and alcohol precipitation) and dried to a fine powder.
How long does konjac root glucomannan stay in your stomach?
It hydrates and slows gastric emptying but generally leaves the stomach in about 2–6 hours, depending on the meal and dose, then moves to the intestines where it’s fermented. Always take it with plenty of water to reduce choking or blockage risk.
How many grams of konjac root glucomannan a day?
Common supplemental intakes are 1–3 g per day (often 1 g three times daily before meals) with plenty of water; EFSA recognizes cholesterol benefits at 4 g/day. Start low to minimize gas or bloating.
How to make konjac noodles with glucomannan powder?
Blend about 10–12 g glucomannan powder into 1 L cold water, then mix in 2–3 g calcium hydroxide (pickling lime) or calcium carbonate; let thicken, extrude or pour into simmering water, and cook 10–15 minutes to set. Rinse well to remove any odor and firm up the texture.