Work

In sight on olive oil maceration and supercritical CO2 in extracting rosemary essential oil

Year: 2024

Type: article

Abstract: The flavor, nutritional, and medicinal value of rosemary are well known. Hydrodistilled (HD) essential oil was prepared in the present study as a standard. Olive oil maceration (OM) and supercritical carbon dioxide (SC-CO2) technology were separately applied to extract the essential oil of rosemary. The three obtained products, HD, OM, and SC-CO2, were compared concerning their main constituents using GC‒MS. Their antimicrobial properties were evaluated against eight microbes by the disc diffusion assay. Interestingly, both 1,8-cineol and camphor were the major compounds in the three oils. α-Pinene was also detected in large amounts in both HD and OM. Additionally, borneol was the third major component in SC-CO2. The antimicrobial results revealed differential effects against six microbes. However, HD oil also exhibited antifungal activity. Maceration is a green extraction procedure that is easy to perform in households, and attention must be paid to olive oil maceration as a complementary medicine that originated in pharaohs.

Source: Scientific Reports

DOI: 10.1038/s41598-024-79832-y

Authors: Maha Mohamed Soltan, Sabry Mahfouz, Fatma H. Motawe, Eman A. Karam, Ali El-Hagrassi

Institution: National Research Centre

Language: English

Topic: Essential Oils and Antimicrobial Activity

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: gold

Estimated APC paid: $2,590

Funders: National Research Centre, Science and Technology Development Fund