Micro Rotary Evaporator

Plant essential oils have long been cherished for their therapeutic and aromatic properties. These valuable oils are extracted from various plant parts using a variety of techniques. In recent years, the micro rotary evaporator has emerged as a powerful tool for extracting essential oils with exceptional precision and efficiency.

Working Principle of Micro Rotary Evaporators

A re-501 rotary evaporator is a specialized device used for distillation, separation, and concentration of liquids. It operates on the principle of evaporation and condensation. The process begins with the plant material, such as leaves, flowers, or stems, being placed in a flask along with a suitable solvent. The flask is then rotated, and the solvent is heated under reduced pressure. This combination of rotation and reduced pressure facilitates the evaporation of the solvent, leaving behind the concentrated essential oil.

Advantages of Micro Rotary Evaporators for Essential Oil Extraction

Enhanced Efficiency:

Micro rotary evaporators offer enhanced efficiency compared to traditional extraction methods. By utilizing rotation and reduced pressure, the evaporation process is accelerated, allowing for faster extraction of essential oils.

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Precise Temperature Control:

Micro rotary evaporators provide precise temperature control, ensuring that the essential oils are extracted without being subjected to excessive heat. This is important as excessive heat can degrade the quality and potency of the oils.

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Selective Extraction:

Micro rotary evaporators enable selective extraction of essential oils by adjusting the temperature and pressure conditions. This allows for the extraction of specific compounds, resulting in oils with desired aromas and therapeutic properties.

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Minimal Solvent Consumption:

The use of micro rotary evaporators significantly reduces solvent consumption. The closed-loop system ensures that the solvent can be recovered and reused, making the process more sustainable and cost-effective.

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Applications of Micro Rotary Evaporators in Essential Oil Extraction


Micro rotary evaporators are extensively used in the production of essential oils for aromatherapy. The precise control over the extraction process ensures that the oils retain their therapeutic properties, offering relaxation, stress relief, and other health benefits.


The fragrance industry relies heavily on essential oils extracted using micro rotary evaporators. These oils serve as the building blocks for creating exquisite perfumes and colognes, where the purity and potency of the extracted oils are crucial.

Herbal Medicine:

Micro rotary evaporators play a vital role in the extraction of essential oils used in herbal medicine. These oils contain bioactive compounds with medicinal properties that can be harnessed for various health treatments.

Flavorings and Food Industry:

Essential oils extracted using micro rotary evaporators find applications in the food industry as natural flavorings. The concentrated oils add unique flavors and aromas to a wide range of food products, including beverages, confectionery, and savory dishes.

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Case:Lavender essential oil extraction

One notable application case that highlights the effectiveness of micro rotary evaporators in essential oil extraction is the production of lavender essential oil. Lavender (Lavandula angustifolia) is a widely recognized plant known for its soothing and calming properties.

In this case, a lavender farm implemented a micro rotary evaporator system to extract essential oil from freshly harvested lavender flowers. The goal was to obtain a high-quality oil with a consistent composition and maximum therapeutic benefits.

The farm started by carefully selecting the lavender flowers at the optimal stage of maturity when the essential oil content is at its peak. The flowers were then carefully separated from the stems and loaded into the flask of the micro rotary evaporator.

To ensure the best extraction results, the farm employed a solvent with a low boiling point and good solubility for the lavender essential oil compounds. In this case, food-grade ethanol was used as the solvent.

The micro rotary evaporator was set to the appropriate temperature and pressure conditions specific to lavender essential oil extraction. The reduced pressure facilitated the rapid evaporation of the solvent while preserving the delicate aroma and therapeutic compounds of the lavender.

As the extraction process commenced, the micro rotary evaporator rotated the flask, allowing for thorough mixing and uniform extraction. The combination of rotation and reduced pressure helped accelerate the evaporation process, ensuring efficient extraction of the essential oil.

Once the solvent evaporated, the concentrated lavender essential oil remained in the flask. The farm carefully collected and analyzed the oil to verify its quality and composition. Gas chromatography and mass spectrometry were utilized to determine the precise chemical profile of the oil, ensuring its purity and potency.

The resulting lavender essential oil obtained through the micro rotary evaporator extraction process exhibited a rich and authentic aroma, characteristic of high-quality lavender oil. The therapeutic properties, including relaxation and stress relief, were maintained due to the precise temperature control provided by the micro rotary evaporator.

The farm successfully utilized the extracted lavender essential oil in various applications. A portion was used for aromatherapy, where the soothing scent of lavender filled the air, promoting relaxation and aiding in sleep. The farm also collaborated with perfumeries, supplying them with the pure lavender oil as a base for creating exquisite perfumes and personal care products.

Furthermore, the culinary industry benefitted from the farm’s lavender essential oil. The concentrated oil added a unique floral note and flavor to desserts, beverages, and savory dishes, providing a gourmet touch to culinary creations.

By utilizing the micro rotary evaporator, the lavender farm achieved efficient extraction of high-quality lavender essential oil. The precise control over the extraction process enabled them to consistently produce oils with desired aromas and therapeutic properties.

This application case demonstrates how micro rotary evaporators have transformed the essential oil industry, empowering producers to unlock the true essence of plants and harness their natural benefits.

Micro Rotary Evaporator

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Company : Guangzhou Fan Bo Lun Import And Export Trade Co., Ltd.


Address : Guangzhou Lock Factory, Zhumuling, Huangshi East Road, Xinshi Town, Guangzhou, Guangdong, China

Email : [email protected]

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