Characteristics of Stevia

Stevia is a plant with a strong sweet flavor. It has been used in sweetened drinks and teas since the 16th century. Eight different sweet components (glycosides) can be extracted from stevia: stevioside, rebaudioside A, C, D, E, and F, steviol glycosides, and dulcoside A. In addition, stevia and its extracts can be used as non-nutritive sweeteners (calorie-free) and herbal supplements. They are also a healthy alternative to sugar in many meals and beverages. Besides these characteristics, stevia and its extracts are known to lower blood glucose, lower blood pressure, control body weight, prevent cardiovascular disease, combat allergies, and reduce fatigue. Based on the many advantages of stevia, research on the production of stevia is necessary.

Fig.1 Stevia and its extract. (Wikipedia)

Our Services

Stevia and its extracts are important additives in the food production process. Thus, it is important to develop as comprehensive as possible extraction and detection of stevia. At CD BioGlyco, we provide high-quality stevia extraction and detection services.

• Solvent extraction
  For the solvent extraction method, stevia and its extracts have better solubility in water and ethanol. Therefore, we chose a mixture of water and ethanol as the extractant. To achieve optimal extraction results, we test the concentration of the aqueous ethanol solution and add ultrasonic waves to the extraction process.
• Dialysis
  This method is effective in removing impurities such as inorganic salts, monosaccharides, and disaccharides.
• Molecular sieve
  The adsorption capacity of the molecular sieve causes molecular concentration on the molecular surface so that the number of such molecules in the fluid is reduced to achieve the purpose of separation and removal.
• Hydrogen sulfide to produce stevia extract
  The method is simple and has a high overall yield.
• Three-step extraction method with water extraction, alcohol precipitation, and ion exchange resin separation
  This process is complete, efficient, and non-toxic and is an excellent extraction method for stevia in food applications.
  The extracted substances of steviol glycosides are more diverse than those of other carbohydrate derivatives. Thus, the separation of the extracted substances is a crucial step. In this regard, the separation of these molecules using ion exchange resins is an effective method.

Fig.2 Extraction method of stevia. (CD BioGlyco)

Applications

• In the food sector, raw stevia can be used as a food additive.
• In drug production, stevia can be used as a raw material for the production of drugs for the treatment of diabetes.

Advantages

• We have a One-Stop Solution for the production and analysis of stevia.
• Our diverse range of extraction methods helps to expand the range of applications for stevia.

CD BioGlyco has proposed and improved the method of extracting stevia after many repeated experiments by researchers. Meanwhile, we provide stevia extraction and analysis services to meet the needs of our customers all over the world. If you are interested in our services, please feel free to contact us.

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