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Cutting Edge Technology

Laboratoires ExpanscienceTM is an expert in the manufacturing of unsaponifiables and has pioneered and patented various processes involved in their extraction. Areas of speciality include molecular distillation, liquid-liquid extraction and thin-film deodorising


What is an Unsaponifiable?

The "unsaponifiables" or unsaponifiable fraction of a fatty substance include all of the components that after a process called alkaline hydrolysis (saponification) are barely soluble in aqueous solutions, but are soluble in organic solvents. More simply, unsaponifiables are the lipid fraction that cannot be transformed into soap. In general, less than 2% of oil’s content is unsaponifiable. Therefore, unsaponifiables consist of all of the non hydrolysable components of the fatty substance as well as those that mainly result from the saponification of fatty esters (sterols esters, waxes, tocopherol esters...).

There are several key factors that determine the quality of unsaponifiables: origin of the seeds or fruits, storage and treatment of the seed or fruits prior to oil extraction, how the crude oil is extracted and refined, and how the unsaponifiables are separated and purified. The raw material used to extract the unsaponifiables is, of course, of the utmost importance since it can highly influence and thereby modify the composition of the final product. Although the chemical components generally found in unsaponifiables are diversified, there are a few major classes:

 

HYDROCARBONS

As examples:
  • SqualeneSqualene

FORMULA CHEMICAL NAME
C30H50 Squalene

STEROLS

As examples:
  • CampesterolCampesterol
  • StigmasterolStigmasterol
  • β-Sitosterolβ-Sitosterol

FORMULA CHEMICAL NAME
C28H48O Campesterol
C29H48O Stigmasterol
C29H50O β-Sitosterol

TRITERPENOIDS 

As examples:
  • LupeolLupeol
  • α-Amyrineα-Amyrine

FORMULA CHEMICAL NAME
C30H50O Lupeol
C30H50O α-Amyrine

FATTY ALCOHOLS

As examples:

FORMULA CHEMICAL NAME
C16H34O Cetyl Alcohol
C16H36O Oleyl Alcohol

TOCOPHEROLS 

As examples:
  • TOCOPHEROLS

FORMULA CHEMICAL NAME R1 R2
C29H50O2 α-Tocopherol  CH3 CH3
C28H48O2 γ-Tocopherol H CH3
C27H46O2 δ-Tocopherol  H H

CAROTENOIDS

As examples:
  • β-Caroteneβ-Carotene

FORMULA CHEMICAL NAME
C40H56 β-Carotene


 

Miscellaneous compounds which presence might be related to the nature of fatty substance, its extraction or preservation process or the treatments utilized. These molecules can also result from transformations or intramolecular rearrangements within the plant or extracts during the preparation.

 


 

What is ASU ExpanscienceTM?

 

SQUALENE

FORMULA CHEMICAL NAME
C30H50 Squalene

SATURATED HYDROCARBONS

As examples:

FORMULA CHEMICAL NAME
C27H56 n-heptacosane

STEROLS, METHYL STEROLS AND TRITERPENOIDS 

As examples:
  • CampesterolCampesterol
  • StigmasterolStigmasterol
  • β-Sitosterolβ-Sitosterol

FORMULA CHEMICAL NAME
C28H48O Campesterol
C29H48O Stigmasterol
C29H50O β-Sitosterol

TOCOPHEROLS 

As examples:
  • α-Tocopherolα-Tocopherol

FORMULA CHEMICAL NAME R1 R2
C29H50O2 α-Tocopherol  CH3 CH3
C28H48O2 γ-Tocopherol H CH3
C27H46O2 δ-Tocopherol  H H


 

SPECIFIC COMPOUNDS

Cyclisation fraction: Some of the original compounds from ASU are also molecules obtained by a chemical modification called cyclisation. This process is perfectly know and now part of Expanscience knowledge. It is performed via a mild and controlled physical treatment without involving any extra chemicals. These cyclized molecules have also been patented and are well represented in ASU ExpanscienceTM. 

 


 

Our Expertise

 

MAKING THE CRUDE OIL

To make our avocado oil, fresh fruit, mainly Hass and Fuerte varieties undergo ‘dry ripening’ to maximise the amount of unsaponifiables that can be extracted. The dried fruit (skin, pulp and stone) is then pressed to remove the crude oil. Soybean oil is made by crushing soybean seeds, applying a solvent to remove the oil, and then drying and refining this extract.

EXTRACTING UNSAPONIFIABLES

The extraction process involves four key steps: distillation of the crude vegetable oils, saponification of the concentrates, extraction and purification of the resulting unsaponifiables. For information, Laboratoires Expanscience was the first company to apply molecular distillation at industrial scale and has since patented the technology, including the unique induction heating system. Distillation involves controlled evaporation of the vegetable oil which results in a concentrated ‘light’ unsaponifiables distillate and a ‘heavy’ triglyceride residue. The capacity of our plant is vast ; it can produce large volumes of distillate - more than 100 tons each year. The unsaponifiables distillate is further refined and purified.

PATENTS

With an extensive and innovative research program, Laboratoires Expanscience has acquired a broad technical knowledge and mastered know-how skills which are widely recognized in the production industry. One key factor of success has been to protect our development through a large number of patents regarding:

  • > Avocado Unsaponifiables preparation process
  • > Unsaponifiables Extraction process
  • > Biological activities
  • > The specific ASU ExpanscienceTM composition

Laboratoires Expanscience has mastered the technical aspect of manufacturing ASU. Through the specificity of the manufacturing process, ASU ExpanscienceTM is unique due to its composition and scientific evidence.