Luo Han Guo Extract Powder

Siraitia grosvenorii, a plant of the genus Siraitia in the Cucurbitaceae family, is primarily cultivated in Guilin, Guangxi, China-a region accounting for over 98% of global production. It is widely known as the "Oriental Sacred Fruit."

Momordica grosvenorii is not only a traditional Chinese medicinal material, but also one of the first dual-use plants published by the Ministry of Health in 1987. As a medicinal material included in the Pharmacopoeia of the People's Republic of China, the traditional efficacy of Siraitia grosvenorii (monk fruit) extends far beyond its sweet taste..[1] Proportional extract is a product form based on the concept of preserving the "whole picture" of plants. It employs a specific concentration ratio-rather than relying solely on a single glycoside content-to maximize the retention of various water- and alcohol-soluble components from Siraitia grosvenorii.

Structural formula:

The production process of Siraitia grosvenorii proportional extract is the decisive factor for its "full spectrum retention" characteristics. Although its process also includes basic steps such as extraction, concentration, and drying, there are significant differences in parameter control and technical path selection compared to standardized extracts.

3.1 Raw materials and pretreatment

Proportional extract is intended to concentrate "all", so it has high requirements on the quality of raw materials, including the maturity, size, and no mildew of Siraitia grosvenorii. Pre-treatment includes cleaning and crushing, with an appropriate particle size to avoid damaging the seeds and facilitate effective dissolution of subsequent components.

3.2 Solvent Extraction and Parameter Control

Extraction is the core of the entire process. Unlike standardized extracts that may use multiple organic solvents and complex chromatography techniques to separate specific glycosides, proportional extracts typically use milder and more universal solvents. The key to this process is that it is a "broad-spectrum" extraction process, rather than a "targeted" extraction of glycosides. The objective of process optimization is to improve the yield of total solids, that is, to transfer as many soluble substances in Siraitia grosvenorii into the extract as possible.[3] 

3.3 Concentration and Drying

The extracted liquid enters the concentration stage after filtration. This step removes most of the solvent through methods and concentrates the extract into a paste. The endpoint control of concentration is the key to achieving a specific ratio (such as 10:1). Finally, the extract was powdered by spray drying or vacuum drying to obtain the final proportional extract product. The entire process avoids fine steps such as macroporous resin chromatography, ultrafiltration, and nanofiltration used for separating and purifying sweet glycosides, ensuring the integrity of the components.

Cleaning

Crushing

Extraction

Concentration

Drying

The proportional extract naturally contains mogroside, which is the material basis of its sweetness. While standardized extracts often exceed 50% sweet glycoside content, the proportion of extract is lower. This results in a milder, more natural sweetness that is less likely to produce the undesirable aftertaste sometimes associated with high-purity sweeteners.

Scientific research has separated and identified more than 50 active ingredients from Siraitia grosvenorii.[1] In addition to glycosides, the proportional extract also contains the following important substances:

• Flavonoids: Momordica grosvenorii contains rich flavonoids, such as kaempferol, quercetin, etc. These ingredients are powerful antioxidants with various biological activities such as free radical scavenging and anti-inflammatory. 
• Polysaccharides: Momordica grosvenorii polysaccharide is one of the important active ingredients, with potential functions of immune regulation, antioxidant, and prebiotics. In terms of taste, polysaccharides can provide a rich and smooth texture, improving the texture of the product, which pure sweetener extracts do not possess.
• Organic acids, vitamins, and minerals: organic acids such as citric acid and malic acid contained in the raw fruit of Siraitia grosvenorii, as well as vitamin C and various minerals (such as potassium and magnesium), are retained in the proportional extraction process, providing more comprehensive nutritional value and richer flavor levels for the product.

5. What Are the Applications of Luo Han Guo Extract?

Based on the above characteristics, Momordica grosvenorii proportional extract and standardized extract play different roles in the market.

• The positioning of standardized extracts: precise 'sweet taste solution'. Its application scenario is clear that is, it serves as a "zero calorie" high magnification sweetener in various food and beverage products, achieving precise sweetness control and cost optimization.
• The positioning of proportional extracts: a multifunctional "natural health base". Its application scenarios are more extensive and diverse:

Applications

 

 

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1. Functional foods and health products: In products that emphasize the concepts of "whole foods" and "full ingredients", proportional extracts are the ideal choice. For example, among throat candy, throat-clearing drinks, and dietary supplements, it can not only provide natural sweetness but also contribute to the overall health value of Siraitia grosvenorii as a traditional dual-use plant. In the national drug standard of Momordica grosvenorii Formula Granules issued by the State Drug Administration, both Momordica grosvenorii saponin V and extract are required, which reflects the concern for the overall composition.[2]
2. Compound seasoning and solid beverages: In products that require the construction of natural and rich flavors, such as herbal tea bags, grain meal replacement powders, soup dumplings, etc., proportional extracts can provide multiple contributions to sweetness, flavor, and sensory experience.
3. Traditional medicine and modern herbal application: In the development of health products that follow the traditional Chinese medicine theory, the proportional extract better retains the "medicinal nature" of siraitia grosvenorii, and conforms to the concept of "monarch, minister, assistant, and envoy" in Chinese medicine.

Security statement：

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Reference
[1]Test Method for Active Components of Siraitia Grosvenorii, T/GXDSL 104-2025.
[2]National Medical Products Administration, National Drug Standards, YBZ-PFKL-2022036 Luohanguo Peifangkeli.
[3]Risk and technical assessment report – Application A1129 Monk fruit extract as a food additive. Food Standards Australia New Zealand. [2018-11-13]