Ginger is a widely used flavoring and medicinal plant. Ginger oil contains rich bioactive ingredients, such as gingerol, gingerol, gingerolone, etc., which give ginger its unique aroma and pharmacological effects. In order to efficiently extract these precious ginger oil from ginger, centrifugal extractor, as an advanced separation technology, has gradually become an important tool in the field of ginger oil extraction.

Introduction to ginger oil

Ginger oil is a volatile oily liquid extracted from ginger, yellow or light yellow, with a strong ginger aroma and spicy taste. The main components of ginger oil include gingerol, gingerol, gingerene, ginger oil ketone, etc. These components give ginger oil a variety of biological activities, such as antioxidant, anti-inflammatory, antibacterial, promote digestion and so on. Therefore, ginger oil has a wide range of application prospects in food, health care products, cosmetics and medicine.

Working principle of centrifugal extractor

Centrifugal extractor is a device that uses centrifugal force to accelerate the liquid-liquid extraction process. Its working principle is based on the difference in the distribution of matter under the action of centrifugal force. When the mixture is placed in the centrifugal cup of the rotating centrifuge, the action of centrifugal force causes the denser material to move toward the outside of the centrifugal cup and the less dense material to move toward the center of the centrifugal cup. In this way, the matter is effectively separated. By adjusting the rotation speed and centrifugal time of the centrifuge, the extraction process can be precisely controlled to achieve efficient separation of the target substance from other impurities.

Application of centrifugal extractor in ginger oil extraction

Raw material preparation:

Choose fresh, pest free ginger as raw material, peeled, sliced or chopped after cleaning, in order to increase the contact area between ginger oil and solvent, improve extraction efficiency.

Solvent selection:

According to the dissolution characteristics of ginger oil, the appropriate solvent was selected for extraction. Common solvents include ethanol, methanol, acetone, etc. When selecting a solvent, it is necessary to consider its solubility, safety, environmental protection and convenience of subsequent treatment.

Mixing and soaking:

The cut ginger is mixed with the selected solvent in a certain proportion and soaked at the appropriate temperature so that the ginger oil can be fully dissolved into the solvent. The soaking time and temperature should be optimized according to the specific situation.

Centrifugal extraction:

The mixture is placed in a centrifugal extracter, which generates a strong centrifugal force through high-speed rotation, prompting the different components of the liquid to stratify according to density differences. The ginger oil dissolved in the solvent forms a solution that separates from the solid residue under centrifugal force.

Collection and purification:

After centrifugation is complete, the supernatant (i.e. the solvent containing ginger oil) is carefully removed, and the ginger oil is further purified and collected by distillation, concentration and other methods. In the purification process, it is also necessary to pay attention to the removal of solvent residues and impurities.

Solvent recovery:

For the remaining solvent, it can be recycled through distillation and other ways, which both saves cost and is conducive to environmental protection.

Advantages of centrifugal extractor

High efficiency separation: The centrifugal extractor can quickly separate ginger oil from other impurities to improve extraction efficiency.

Strong controllability: By adjusting the rotation speed and centrifugal time of the centrifuge, the extraction process can be precisely controlled to ensure the purity and quality of ginger oil.

Environmentally friendly: The centrifugal extraction process does not need to use a large number of chemical reagents, reducing environmental pollution.

Wide range of application: centrifugal extractor is not only suitable for laboratory scale ginger oil extraction, but also for large-scale extraction in industrial production.

Matters needing attention

In the actual operation process, the following points should also be noted:

Raw material selection: Ensure the selection of fresh, pest free ginger as raw material to improve extraction efficiency and the quality of ginger oil.

Solvent selection: Choose a solvent with good solubility, high safety and easy recovery for ginger oil.

Temperature control: Avoid operating under high temperature conditions to prevent oxidative degradation of ginger oil.

Safety: Follow the relevant safety operation procedures to ensure the safety of operators.

Centrifugal extractor, as an advanced separation technology, has significant advantages in the extraction process of ginger oil. Its characteristics of high efficiency, controllability and environmental protection make the extraction of ginger oil more efficient and accurate. With the continuous progress of technology and the deepening of application, centrifugal extractor will play a greater role in the extraction field of ginger oil, providing more possibilities for food, health care products, cosmetics and medicine industries. In the future, with the deepening of the research on the biological active ingredients of ginger oil and the increase of market demand, the application prospect of centrifugal extractor in the field of ginger oil extraction will be broader.