Produce 80 - 100 mesh European bilberry extract powder.

Home > News > blog3 2024-12-18 • 10 Minute Reading

Introduction

European bilberry, scientifically known as Vaccinium myrtillus, is a small, dark - blue berry that is native to Europe. It is rich in various beneficial substances such as anthocyanins, flavonoids, and phenolic acids. These components endow the bilberry with antioxidant, anti - inflammatory, and vision - enhancing properties, among others. As a result, the European bilberry has high - value applications in multiple industries. One of the important forms in which it is used is the 80 - 100 mesh extract powder. This form is not only convenient for storage and transportation but also easy to be incorporated into various products. The production of this 80 - 100 mesh European Bilberry Extract powder is a complex process that requires careful attention to each step to ensure the quality and effectiveness of the final product.

Raw Material Selection

The first step in the production of 80 - 100 mesh European Bilberry Extract powder is the careful selection of high - quality bilberries. This is a crucial step as the quality of the raw material directly affects the quality of the extract powder.

Source Considerations

Bilberries should be sourced from regions with a clean environment, free from pollution such as heavy metals and pesticides. For example, in some organic farms in northern Europe, where strict environmental protection regulations are in place, the bilberries are more likely to be of high quality.
The harvesting time also plays an important role. Bilberries should be harvested at the optimal maturity stage. If harvested too early, the content of active ingredients may not be fully developed; if harvested too late, the berries may start to deteriorate. Generally, in late summer to early autumn, when the bilberries turn a deep blue - black color, it is a good time for harvesting.

Quality Inspection

Once the bilberries are harvested, they need to go through a strict quality inspection process. Visual inspection is the first step. Berries should be intact, without any signs of damage, mold, or decay.
Chemical analysis is also necessary. This includes testing for the content of active ingredients such as anthocyanins. Only bilberries that meet the pre - determined quality standards can be used for further processing.

Extraction of Active Ingredients

After the selection of high - quality bilberries, the next step is the extraction of active ingredients using advanced extraction techniques.

Solvent Extraction

Solvent extraction is one of the commonly used methods. Ethanol is often selected as the solvent due to its good solubility for the active ingredients in bilberries and its relatively low toxicity. The ratio of bilberries to ethanol needs to be carefully controlled. For example, a ratio of 1: 5 (weight/volume) may be used, depending on the characteristics of the bilberries and the extraction equipment.
The extraction process is usually carried out at a certain temperature and for a specific period of time. A temperature range of 40 - 60°C and an extraction time of 2 - 4 hours are often considered appropriate. This helps to ensure the efficient extraction of active ingredients while minimizing the degradation of these ingredients.

Supercritical Fluid Extraction

Supercritical fluid extraction is another advanced technique. Carbon dioxide (CO₂) in its supercritical state is often used. This method has the advantages of being environmentally friendly, as CO₂ is non - toxic and can be easily removed from the extract. Moreover, it can provide a more selective extraction, resulting in a purer extract.
The operating conditions for supercritical fluid extraction, such as pressure and temperature, need to be precisely controlled. For example, a pressure range of 10 - 30 MPa and a temperature range of 30 - 50°C may be used to optimize the extraction of active ingredients from bilberries.

Filtration and Concentration

Once the active ingredients are extracted, the extract needs to be filtered and concentrated.

Filtration

Filtration is carried out to remove any solid impurities such as cell debris and insoluble substances. Membrane filtration is often used, which can effectively separate the impurities while retaining the active ingredients. Different pore - sized membranes can be selected according to the size of the impurities. For example, a 0.2 - 0.45 μm membrane may be used for the initial filtration.
After the initial filtration, a finer filtration may be required to further purify the extract. This can be achieved using a nano - filtration membrane, which can remove smaller impurities and improve the purity of the extract.

Concentration

Concentration is necessary to increase the content of active ingredients in the extract. Vacuum evaporation is a commonly used method. By reducing the pressure, the solvent can be evaporated at a lower temperature, which helps to protect the active ingredients from thermal degradation. The degree of concentration is usually determined according to the requirements of the final product. For example, the extract may be concentrated to a certain ratio, such as 1: 10 (original extract to concentrated extract) in terms of volume.
Another method for concentration is freeze - drying. This method is especially suitable for heat - sensitive active ingredients. In freeze - drying, the extract is first frozen and then the solvent is removed by sublimation under vacuum. The resulting concentrated extract has a high content of active ingredients and good stability.

Grinding to 80 - 100 Mesh

The grinding process is crucial in achieving the 80 - 100 mesh fineness of the European Bilberry Extract powder. This fineness affects the powder's solubility and bioavailability.

Grinding Equipment Selection

There are several types of grinding equipment that can be used. A ball mill is a common choice. It consists of a rotating cylinder filled with grinding balls. The extract is placed in the cylinder, and as the cylinder rotates, the balls collide with the extract, gradually grinding it into a fine powder. The size and material of the grinding balls can be adjusted according to the characteristics of the extract. For example, stainless steel balls with a diameter of 2 - 5 mm may be used.
Another option is a jet mill. The jet mill uses high - speed jets of gas to accelerate the particles of the extract and cause them to collide with each other, resulting in grinding. This method is suitable for grinding fine powders and can achieve a relatively uniform particle size distribution. However, it may be more expensive than a ball mill in terms of equipment cost.

Controlling Grinding Parameters

The grinding time is an important parameter. If the grinding time is too short, the powder may not reach the desired fineness. However, if the grinding time is too long, it may cause over - grinding, which can lead to a decrease in the activity of the active ingredients. For example, for a ball mill, a grinding time of 2 - 4 hours may be appropriate for achieving 80 - 100 mesh fineness.
The feed rate of the extract into the grinding equipment also needs to be controlled. A too - high feed rate may result in incomplete grinding, while a too - low feed rate may reduce the production efficiency. A proper feed rate should be determined based on the capacity of the grinding equipment and the characteristics of the extract.

Quality Control of the Extract Powder

After the production of the 80 - 100 mesh European Bilberry Extract powder, quality control is essential to ensure that the product meets the required standards.

Physical Property Testing

Particle size analysis is carried out to confirm that the powder is within the 80 - 100 mesh range. Laser diffraction particle size analyzers can be used for accurate measurement. If the particle size is not within the required range, adjustments to the grinding process may be necessary.
Solubility testing is also important. The powder should have good solubility in appropriate solvents, such as water or ethanol. Poor solubility may indicate problems in the production process, such as improper grinding or the presence of impurities.

Chemical Component Analysis

The content of active ingredients, such as anthocyanins, should be analyzed. High - performance liquid chromatography (HPLC) is a commonly used method for accurate quantification. The content of anthocyanins should be within a certain range to ensure the effectiveness of the extract powder.
Testing for residual solvents is necessary. Since solvents are used in the extraction and concentration processes, it is important to ensure that the amount of residual solvents in the final product is within the safety limits specified by regulatory agencies.

Applications of 80 - 100 Mesh European Bilberry Extract Powder

The 80 - 100 mesh European Bilberry Extract powder has wide - ranging applications in different fields.

Pharmaceutical Field

In the pharmaceutical field, it can be used in the development of drugs for eye - related diseases. The anthocyanins in bilberries have been shown to have beneficial effects on improving vision and protecting the eyes from oxidative stress. For example, it may be used in the formulation of eye drops or oral medications for treating macular degeneration or diabetic retinopathy.
It can also be used as an ingredient in anti - inflammatory drugs. The anti - inflammatory properties of bilberries can help in reducing inflammation in the body, which is beneficial for patients with arthritis or other inflammatory diseases.

Health Product Field

In the health product field, the extract powder can be made into dietary supplements. These supplements can be taken to improve overall health, boost the immune system, and provide antioxidant protection. For example, it can be formulated into capsules or tablets for easy consumption.
It can also be added to functional foods such as energy bars or fruit juices. The addition of Bilberry Extract powder not only enhances the nutritional value of these foods but also gives them additional health - promoting properties.

Cosmetic Field

In the cosmetic field, the extract powder can be used in the production of skin - care products. The antioxidant and anti - inflammatory properties of bilberries make it suitable for use in creams, lotions, and serums. It can help in reducing wrinkles, improving skin elasticity, and protecting the skin from environmental damage.
It can also be used in hair - care products. For example, it may be added to shampoos or conditioners to improve the health of the hair, making it shinier and stronger.

FAQ:

What are the main active ingredients in European bilberry?

European bilberry contains various active ingredients such as anthocyanins, flavonoids, and phenolic acids. Anthocyanins are particularly important as they are associated with antioxidant, anti - inflammatory, and vision - enhancing properties.

How is the quality of the selected bilberries ensured during the production?

The quality of the selected bilberries is ensured through several methods. Firstly, they are sourced from reliable growers. Then, strict inspection is carried out to check for factors like ripeness, absence of diseases or pests, and proper size. Only bilberries that meet these criteria are used for further processing.

What advanced extraction techniques are commonly used for European bilberry?

Commonly used advanced extraction techniques for European bilberry include solvent extraction and supercritical fluid extraction. Solvent extraction uses solvents like ethanol to dissolve the active ingredients. Supercritical fluid extraction, often using carbon dioxide in a supercritical state, can be more selective and environmentally friendly, effectively extracting the desired components while leaving behind unwanted substances.

Why is the 80 - 100 mesh fineness important for the Bilberry Extract powder?

The 80 - 100 mesh fineness is important because it affects the powder's solubility and bioavailability. A finer powder with this mesh range has a larger surface area, which allows for better dissolution in solvents or in the body. This leads to more efficient absorption of the active ingredients, enhancing their effectiveness in applications such as pharmaceuticals, health products, and cosmetics.

What are the potential applications of European Bilberry Extract powder in cosmetics?

In cosmetics, European Bilberry Extract powder can be used for its antioxidant properties. It can help protect the skin from free radical damage, reduce signs of aging such as wrinkles and fine lines. It may also be used for its anti - inflammatory properties to soothe irritated skin and improve overall skin health.