Teknologjia e ultrazërit Hielscher

Deep Eutectic Solvents for Highly Efficient Extraction

Deep eutectic solvents (DESs) and natural deep eutectic solvents (NADES) offer advantages as extraction solvents on many levels and are thereby a promising alternative to conventional organic solvents. Deep eutectic solvent work excellent in combination with ultrasonic extraction and give high yields of premium quality extracts. Find out more about ultrasonic extraction using natural deep eutectic solvents.

What are Deep Eutectic Solvents (DES)?

Deep eutectic solvents (DESs) are mixtures of at least one hydrogen bond acceptor (HBA) and one hydrogen bond donor (HBD), including carboxylic acids and other renewable compounds. According to Cai et al. (2019), “the strong hydrogen bonding interaction between HBA and HBD is the most important factor for the formation of DESs.” [Cai et al. 2019] For hydrogen bond donors (HBDs), compounds such as sugars, amino acids, carboxylic acids (e.g., benzoic acid, citric acid, succinic acid) or amines (e.g., urea, benzamide) are often used. The chemical interaction potential of HBDs is the major factors contributing to formation and efficiency of deep eutectic solvents. Halide salts such as choline chloride or zinc chloride can be also used in conjunction with the HBDs. Other choline chloride-based DES are formed with malonic acid, phenol or glycerine. As result of the strong hydrogen-bonding interactions, the melting point of deep eutectic solvents is significantly reduced when compared to its individual components. In contrast to conventional solvents (e.g., ethanol, methanol, hexane, butane etc.) DES are non-volatile, which means they have a very low vapour pressure and are thereby hardly inflammable. The toxicity of deep eutectic solvents is low, their biodegradability is high, and the necessary precursors are inexpensive, easily and plentiful available as well as renewable. Natural deep eutectic solvents (NADESs) are even more eco-friendly as all precursors are sourced from natural sources. DESs also offer a tunable solvency based on the chemistry of the solute and the species used to create the DES. Some NADES exhibit a high viscosity and they are therefore not very suitable for batch extraction. However, NADES with higher viscosities can be successfully applied as solvents in ultrasonic flow-through extraction.

Kërkesë informacioni





Deep eutectic solvents (DES) are highly effective solvents for ultrasonic botanical extraction.

Ultrasonic extraction with (natural) deep eutectic solvents is a highly efficient method for superior botanical extracts. The picture shows the ultrasonic processor UP400St (400W) with a 8L batch for botanical extraction.

Ultrasonic Botanical Extraction with the UP200Ht

How Does Ultrasonic Extraction with Deep Eutectic Solvents Work?

Ultrasonic extraction is based on the sonomechanical effects of high-intensity, low-frequency ultrasound. To promote and intensify the extraction of botanical compounds (i.e., bioactive substances) via ultrasonication, high-power ultrasound waves are coupled via an ultrasonic probe (also called ultrasonic horn or sonotrode) into the liquid medium, i.e. the slurry consisting in the botanical raw material and the (natural) deep eutectic solvent. The ultrasound waves travel through the liquid and create alternating low-pressure / high-pressure cycles. During low-pressure cycles, minute vacuum bubbles (so-called cavitation bubbles) are created, which grow over several pressure cycles. During those cycles of bubble growth, the dissolved gases in the liquid enter the vacuum bubble, so that the vacuum bubble transform into growing gas bubbles. After growing over several cycles, the vacuum bubbles reach a certain size at which they cannot absorb more energy, so that they implode violently during a high-pressure cycle. The bubble implosion is characterised by intense cavitational forces, including very high temperature and pressure reaching up to 4000K and 1000atm, respectively; as well as corresponding high temperature and pressure differentials. These ultrasonically generated turbulences and shear forces break plant cells up and release the intracellular bioactive compounds into the (natural) deep eutectic solvent. Ultrasonic extraction opens the cell structure of botanicals and intensifies mass transfer between plant material and solvent. Sonication promotes thereby the efficacy of natural deep eutectic solvents. Ultrasonic extraction with (natural) deep eutectic solvents results in exceptionally high yields within a very short processing time.

Ultrasonic extraction is works by  disrupting cell structures and promoting mass transfer

Power ultrasound waves disrupt the cell structure of botanicals, release the bioactive compounds and promote the mass transfer between the plant material and the solvent (e.g., deep eutectic solvents).

Advantages of Ultrasonic Extraction with Deep Eutectic Solvents

  • shumë efikas
  • proces të shpejtë
  • Exactly tunable to the specific botanical
  • Mild processing conditions
  • Batch and flow mode
  • Lehtë dhe e sigurt
  • Environmental-friendly / biodegradable
  • Recycable
  • i lirë
  • Easily accessible
  • Jo-toksike

The combination of ultrasonic extraction with (natural) deep eutectic solvents gives you the opportunity combine the process intensifying power of ultrasound with the remarkable solubilizing effects and outstanding designability of deep eutectic solvents.
Contact us now to learn more about the powerful ultrasonic extraction application using deep eutectic solvents!

Ultrasonic extraction can be combined with deep eutectic solvents for superior efficiency and eco-friendliness.

heqës tejzanor UIP2000hdT (2kW) for the production of botanical extracts

Kërkesë informacioni





Extractors tejzanor me performancë të lartë

Ultrasonic inline extraction system UIP4000hdT for the use of deep eutectic solventsUltrasonic extraction is a reliable processing technology, which facilitates and accelerates the production of high-quality extracts from various botanical as well as any solvent. Ultrasonic extraction is highly compatible with (natural) deep eutectic solvents, which are favourable due to their excellent solubilizing power, designability to the extract, sustainability, biodegradability, and eco-friendliness. The combination of the process intensification of power ultrasound with the advantages of (natural) deep eutectic solvents gives this process technology superiority on many levels. Hielscher Ultrasonics portfolio covers the full range from compact lab ultrasonicators to industrial extraction systems. All of them are of course suitable for the extraction with deep eutectic solvents.
Our long-time experienced staff will assist you from feasibility tests and process optimisation to the installation of your ultrasonic system on final production level.

Hielscher Ultrasonics’ Extractors feature:

  • high efficiency power-ultrasound
  • besueshmeri e larte
  • amplitudë shumë të lartë
  • operation in batch and flow-mode
  • repeatable / reproducible results
  • Operacioni 24/7/365
  • Fuqia
  • smart software
  • kontrollit të largët të shfletuesit
  • user-friendliness
  • low maintenance requirements
  • siguri

Tabela më poshtë ju jep një tregues të kapacitetit të përafërt të përpunimit të ultrasonicators tonë:

Vëllimi i Serisë Shkalla e rrjedhjes Devices rekomanduara
1 deri 500mL 10 deri 200mL / min UP100H
10 deri në 2000 ml 20 deri 400mL / min UP200Ht, UP400St
0.1 deri në 20L 0.2 deri në 4L / min UIP2000hdT
10 deri në 100L 2 deri në 10L / min UIP4000hdT
na 10 deri në 100L / min UIP16000
na më e madhe grup i UIP16000

Na kontaktoni! / Pyet Na!

Pyesni për më shumë informacion

Ju lutemi përdorni formularin më poshtë për të kërkuar informacione shtesë në lidhje me procesorët tejzanor, aplikacionet dhe çmimin. Ne do të jemi të lumtur të diskutojmë procesin tuaj me ju dhe t'ju ofrojmë një sistem tejzanor që plotëson kërkesat tuaja!









Ju lutem vini re tonë Politika e privatësisë.


Ultrasonic high-shear homogenizers are used in lab, bench-top, pilot and industrial processing.

Hielscher Ultrasonics prodhon homogjenizues tejzanor me performancë të lartë për përzierjen e aplikacioneve, shpërndarjen, emulsifikimin dhe nxjerrjen në shkallë laboratorike, pilot dhe industriale.

Literatura / Referencat



Hielscher Ultrasonics supplies high-performance ultrasonic homogenizers from lab to industrial size.

Ultrasonikët me performancë të lartë! Gama e produkteve të Hielscher mbulon spektrin e plotë nga ultrasonicatori i laboratorit kompakt mbi njësitë e nivelit të lartë deri te sistemet tejzanor tërësisht industriale.