Natural Sweetener Solutions
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What’s the standard testing method for STV purity?
Our specifies HPLC analysis using C18 column (250mm length, 0.25mm diameter, 0.25μm particle size) with mobile phase flow rate at 5.0mL/min and detection at 210nm. Sample preparation requires 80°C extraction for 30 minutes.
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What quality certifications does Sinopure hold for STV production?
Sinopure maintains FDA GRAS, Organic, ISO9001, ISO22000, FSSC22000, HALAL, and KOSHER certifications for its steviol glycoside products including STV . The company implements integrated quality systems meeting international standards for food additives .
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What are the industrial uses of STV in China?
In China, STV is widely used as semi-finished product for further processing in preserved fruits (particularly in candied plums and melon seeds) due to its high stability and clean taste profile . It's also applied in bakery, dairy products, and premium beverages.
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What is Sinopure’s production capacity for STV products?
Sinopure has an annual production capacity of 200 tons for high-purity steviol glycosides including STV, utilizing advanced five-stage membrane separation and continuous chromatographic purification systems . The company controls over 10,000 acres of stevia plantations producing 5,000 tons of premium dried leaves annually.
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What are key quality specifications for food-grade STV?
JECFA & FCC standards require: ≤1.0% moisture, ≤0.1% sulfated ash, ≤2.0% residue on ignition, lead ≤1mg/kg, arsenic ≤3mg/kg, microbial counts
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What industrial processes produce high-purity STV?
Modern production uses: 1) Macroporous resin adsorption (AB-8/XAD-16HP), 2) Nanofiltration (200-300Da MWCO), 3) Continuous chromatography (DAC system), achieving ≥97% purity with
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What are STV’s thermal stability characteristics?
STV remains stable up to 200°C with ≤5% degradation after 1 hour. In acidic conditions (pH 3), solutions maintain >95% integrity after 6 months at 25°C. Degradation follows first-order kinetics with Ea=62.4 kJ/mol between 100-200°C.
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How do STV sweetness levels compare to sugar?
STV sweetness ranges from 200-350× sucrose depending on glycoside composition. Reb A is 200-250×, Stevioside 250-300×, and purified Reb D/M can reach 350-450×. Blends are typically formulated to match sucrose's temporal profile.
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What’s the standard HPLC method for STV quantification?
According to JECFA and ISO 21253-1:2019, analysis requires C18 column (4.6×250mm, 5μm) with acetonitrile/water (32:68) mobile phase at 1.0mL/min, 210nm detection. Retention times are: Stevioside (6.5min), Reb A (8.2min), Reb C (10.1min).
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