Honey is a natural sweetener, known as "the gold of nature". It is formed by bees collecting nectar, secretions or honeydew from plants, through the action of their own enzymes and repeated brewing within the beehive. Honey not only has a thick and sweet taste, but also possesses multiple functions such as antioxidation and antibacterial properties. Honey is rich in glucose, fructose, vitamins, minerals and active enzymes, with 70% to 80% of its composition being glucose and fructose, and the moisture content being no more than 20%. However, natural honey contains impurities such as bee wax fragments, dead bees and pollen during collection and processing. The production process of honey usually follows the following flow:
Raw material acceptance→molasses→shake hands with honey→filtration→filling
During the raw material inspection, the maturity (concentration ≥ 41.5%) and pesticide residues of the honey are measured. After removing the bees and impurities from the honeycomb, the honey is centrifugally separated to retain the active components. Then, pollen and beeswax are filtered out to improve the clarity. The sealed packaging is done under a sterile environment.
The filtration process is a crucial step. The traditional method usually involves using simple filter bags, which can only remove large particles and cannot effectively filter out pollen. As a result, the final product appears slightly cloudy. When dissolved in water, it will produce trace amounts of sediment, which affects the transparency of the honey water. Moreover, some consumers are allergic to pollen. Therefore, there is a need for clear and transparent honey products in the market.
How to ensure that honey remains both nutritious and pure has become an important research topic in honey production technology.
Ceramic membranes and organic membranes have characteristics such as high filtration accuracy, which can be used for clarifying and removing impurities of materials, making the filtrate clear and achieving satisfactory filtration results. However, honey has the characteristics of high concentration and high viscosity, and it needs to be diluted with water for filtration to achieve better filtration effects. However, the filtration process of diluting with water changes the concentration of honey. According to the regulations of the National Market Supervision Administration in 2022, the resulting product is recognized as a honey product rather than pure honey.
In response to the industry challenges of honey's high viscosity and difficulty in filtration, Wuhan Bona has developed a direct tangential flow filtration process for honey, enabling the filtration of honey with a concentration of over 80% without adding water, and achieving good filtration results such as low turbidity, high yield, fast speed, and stable flux.
Advantages of Wuhan Bonan Membrane Filtration:
Low temperature: Filter at a temperature below 50℃ to preserve the color, aroma and taste of the raw honey.
Low turbidity: After highly efficient removal of impurities such as pollen, the turbidity is less than 5 NTU (after dilution with water, it is less than 2 NTU);
High yield: The liquid is used for high-quality product applications, while the filtrate is used for the development and application of honey products.
High speed, stable throughput, and capable of supporting continuous production;
Easy to clean: The membrane system is easy to clean, convenient for storage, and reduces inter-batch variations.
Bona Wuhan, as a leading company in the field of material membrane filtration and separation, focuses on the research and application of filtration technology, and is committed to providing customers with comprehensive membrane filtration solutions. It has accumulated rich process development and engineering experience in the filtration of high-viscosity materials such as honey and polysaccharides. It can provide tailor-made process design solutions according to the individualized needs of customers, ensuring the scientificity, rationality and efficiency of the process.
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The company also provides high-quality membrane filtration equipment to ensure the stable operation of the system and safeguard the production of customers. In addition, the professional technical support and the well-established after-sales service team can promptly respond to customer needs and solve various problems encountered by customers during use, eliminating customers' worries and allowing them to fully devote themselves to production and operation, enjoying the numerous conveniences and benefits brought by membrane separation technology.
