This study aimed to identify the chemical composition (ash, cellulose, total chlorophylls, carotenoid, and essential oil (EO) content), antioxidant activity, mineral of lemon balm (Melissa officinalis L) obtained from Bulgaria. The EO was analyzed using gas chromatography-mass spectrometry (GC-MS). major constituents were caryophyllene oxide (33.99%), n-hexadecanoic acid (14.28%), α-citral (6.6...

Background: Light-emitting diodes (LEDs) are a promising technology that has enormous potential to improve irradiance efficiency and replace traditionally used horticultural lighting. Compared with traditional light sources (e.g., high-pressure sodium lamps metal halide lamps) in crop production, LEDs tends have long life, generate less heat waste providing the perfect spectrum for plant growth...

Thyme, mint, and lemon balm were used to determine whether shading conditions could improve the yield, composition, antioxidant, antimicrobial activity in plant essential oils (EOs) comparison with non-shaded plants from an open field. The yield of EOs thyme, balm, was 3.44, 3.96, 0.21 mL/100 g, respectively. Plants covered by nets produced different levels (3.46, 2.20, 0.45 g) after 120 min hy...

Allelopathy refers to the chemical inhibition or stimulation of one species by another which could influence on the growth or germination of other plant and used in control of weed in agricultural practices. In this sense in order to study the possibly allelopathic effects of lemon balm, bitter apple and lemon verbena medicinal plants on control of wild mustard weed, a laboratory experiment was...

The objective of this study was to evaluate the efficacy of plant essential oils (EOs) in combination and to investigate the effect of food ingredients on their efficacy. The EOs assessed in combination included basil, lemon balm, marjoram, oregano, rosemary, sage and thyme. Combinations of EOs were initially screened against Bacillus cereus, Escherichia coli, Listeria monocytogenes and Pseudom...