Of course the polarity and chemical properties of those two are different, too.

The essential oil possesses more low polarity and small (MW) compounds.

Hi

Really good paper with many remarks related to your question .... 140 references:

Article Phytochemicals: Extraction, Isolation, and Identification of...

Best regards

Tomasz

Dear Laura Vaidelytė

In general, the different of Essential oil and Extract are the process of extracting it (phytochemicals polarity). Essential oils are the concentrated, volatile, aromatic compounds of a plant. Plant’s structures go through a steam distillation process to extract the oil. The liquid that distills off is considered the plant’s essence, while the smaller amount of liquid that remains is the essential oil.

Plant extracts are obtained through some methods, e.g., cold-pressing, route-evaporator (water or EtOH solvent). The extracts are collected after straining off the plant materials from the liquid and the final product becomes concentrated. Another way of obtaining plant extracts are to dry the herbs and grinding them in mortar and pestle. Anyway, there are some other ways of preparing extracts.

There are good published surveys that can show more details and information.

Regards,

Please look at the following below links which may help you in your analysis:

https://ohlolly.com/blogs/ohlolly-blog/essential-oils-vs-extracts

https://greenherbology.com/2017/11/06/4-major-differences-between-essential-oils-and-extracts/

Thanks

Essential oils are the concentrated, volatile, aromatic compounds of a plant," and they are usually extracted through steam distillation. ... Because of these different methods of production, "Essential oils will be pure, whereas an extract is a diluted version,"

Hi

In addition to the extraction method, the essential oil compounds are usually different from the extracted material and have different properties.

What is a plant extract?

I know,

you will answer that the Methanolic, Ethanolic, Acetonic, etc. extracts of dry parts of plants are plant extracts.

My humble request:

Please re-consider and re-analyze your answer.

Plant extract is the actual extract of a plant, not the chemical extracts of the dry partS.

DO YOU CONSIDER THE EXTRACT OF AN APPLE IS ITS CHEMICAL EXTRACTS AFTER DRYING?

Perhaps not.

Then why are you not considering the PRESSURE EXTRACTS OF THE SUCCULENT PARTS OF THE MEDICINAL PLANTS ARE THE ACTUAL PLANT EXTRACTS?

The contemporary researchers of the world are WRONG.

Do you not agree?

Essential oils are a complex mixture of aromatic volatile components that are formed as products of secondary metabolism of plants (containing natural organic compounds of aliphatic, alicyclic, aromatic and heterocyclic nature: hydrocarbons, alcohols, aldehydes, ketones, carboxylic acids, ethers, esters, lactones, phenols). Essential oils are responsible for the smell and aroma of plant parts (buds, flower, leaves, fruit, seeds, branches, tree, root, aboveground parts). For the most part, these are compounds from the group of monoterpenes, sesquiterpenes, their oxygenated derivatives and benzene aromatic compounds. They are soluble in alcohol and sparingly soluble in water. The aroma of essential oils depends on their chemical composition.

Essential oils are complex mixtures of low molecular weight compounds (usually less than 500 daltons) extracted by hydrodistillation, steam distillation or solvent extraction.

It is important to emphasize what ISO standards prescribe:

We refer here to the ISO definition of essential oils, resinoids, concretes, etc. [Aromatic Raw Materials - Vocabulary, International Standard ISO 9235, 1997]. Essential oils are obtained from raw material:

either by distillation with water or steam, by a mechanical process (cold pressing or expression) at room temperature or by dry distillation, enfleurage...

NOTE: The essential oil is subsequently separated from the aqueous phase (if we have distillation process) by physical means.

Solvent extracts and supercritical fluid extracts are therefore not essential oils.

So far, Microwave Assisted HydroDistillation (MAHD), with or without added water, is not admitted as an essential-oil producing process. These products should for instance be named microwave-assisted volatile oils.

Extraction is the isolation of active substances from drugs of plant or animal origin, with a suitable selected solvent, at the appropriate temperature and using standardized methods. The dynamics and course of the extraction process depends on many parameters and the most important are:

1. technological properties of plant raw material to be extracted,

2. technological procedure (method) of performing the process and

3. applied extraction devices.

Plant raw material from which active principles are isolated must meet certain standards in terms of quality of plant raw material, content of active and extractive substances, moisture content, degree of grinding, speed and size of swelling of plant raw material, density, volume and bulk density of plant raw material. Flushing coefficients, internal and free diffusion coefficients within the plant raw material and mechanical properties - external and internal friction coefficients, etc. can also be mentioned as important items.

Today's more modern methods of extraction process (ultrasonic extraction, microwave extraction, ultra Turrax extraction, supercritical CO 2 extraction) contribute to shortening the extraction time, increasing the degree of drug exhaustion, reducing energy consumption. This type of method respects the selective approach in order to obtain specific extracts of special purpose in order to increase the stability of the extracted components and improve the organoleptic properties of the obtained extracts.

Because of these different methods of production, "Essential oils will be pure, whereas an extract is a diluted version," says Mattioli.

https://www.bustle.com/p/whats-the-difference-between-extracts-oils-in-skin-care-how-to-tell-whats-actually-in-your-beauty-products-57886#:~:text=According%20to%20Mattioli%2C%20%22Essential%20oils,usually%20extracted%20through%20steam%20distillation.&text=Because%20of%20these%20different%20methods,diluted%20version%2C%22%20says%20Mattioli.