Renata Prusinowska

• Lodz University of Technology

The antioxidant and antimicrobial activities as well as chemical composition of essential oils from fresh and dried flowers and aerial parts of lavender (Lavandula angustifolia) were compared. Their main volatile components were linalool (26.5-34.7 %), linalyl acetate (19.7-23.4 %), β-ocimene (2.9-10.7 %), and α-terpineol (2.8-5.1 %). The lavender...

Lavandula angustifoila essential oil is recognized as the most commonly used worldwide, mainly utilized as a substantial component of flavorings in cosmetics and perfumery. Due to its antimicrobial properties, lavender essential oil of different origin serves as a valuable compound of preservative systems in cosmetic formulations. The main goal of...

The chemical compositions of essential oils and hydrolates from fresh and dried aerial parts of basil (Ocimum basilicum L.) were compared. Both the essential oil and hydrolate from fresh basil were assigned to the methyleugenol-eugenol chemotype (44.9-51.26 % and 12.5-26 %, respectively), while the essential oil and hydrolate from dried material to...

A new product from a low temperature drying method that reduces the loss of highly volatile essential oils is presented. The proposed drying method consists of evaporation/sublimation of water and aromatic substances in a dryer with a closed drying agent cycle. In parallel, the evaporated compounds are continuously condensed in a heat exchanger. As...

The chemical composition variants of hydrosols from dried flowers of lavender (Lavandula angustifolia) were compared. Organic compounds were isolated from hydrosols by dispersive liquid-liquid microextraction (DLLME). The optimum DLLME conditions (20 µL) of chlorobenzene, 0.50 mL of acetonitrile, sonication at 50°C for 10 min) were determined using...

It was shown that the method for obtaining hydrolates from lavender (Lavandula angustifolia) influences the content of active compounds and the aromatic, antimicrobial and antioxidant properties of the hydrolates. The content of volatile organic compounds ranged from 9.12 to 97.23 mg/100 mL of hydrolate. Lavender hydrolate variants showed low antim...

Unlabelled: The study was undertaken to verify the antimicrobial activity of Lavandula angustifolia hydrosols in moisturizing body gels. The inhibition efficacy of four lavender hydrosols (obtained from fresh or dry herbs or flowers) was tested against Staphylococcus aureus ATCC 6538, Escherichia coli ATCC 1627, Candida sp. ŁOCK 0008 and Aspergill...

Lavender (Lavandula angustifolia) is a shrub of the family Lamiaceae, native to the Mediterranean region. The material used for herbal purposes includes lavender flowers (Lavandula flores) containing essential oil (3%), anthocyanins, phytosterols, sugars, minerals, and tannins. The qualitative and quantitative composition of the essential oil of la...

The chemical composition of essential oils and hydrolate from dried lavender flowers (Lavandula angustifolia) was determined. Organic compounds were isolated from the hydrolate by the liquid–liquid (LLE) method. Optimal conditions for LLE (pentane, five extraction cycles, 40 mL, salting out [5% NaCl]) were determined by the Taguchi method. As many...

Qualitative and quantitative differences in essential oil hydrodistilled from fresh and dried flowers of lavender (Lavandula angustifolia) harvested in Poland were investigated by gas chromatography-mass spectroscopy (GC-MS) and near infrared spectroscopy (NIRS). Drying prior to hydrodistillation resulted in large losses of essential oil (over 40 %...