scholarly journals Chemical and Biochemical Characterization of Essential Oils and Their Corresponding Hydrolats from Six Species of the Lamiaceae Family

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2489
Author(s):  
Cristina Laura Popa ◽  
Andreea Lupitu ◽  
Maria Daniela Mot ◽  
Lucian Copolovici ◽  
Cristian Moisa ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Biochemical Characterization ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Thymus Vulgaris ◽  
Origanum Vulgare ◽  
Lavandula Angustifolia ◽  
Food And Beverage

Many plants belonging to the Lamiaceae family are rich in essential oils (EOs) which are intensively used for aromatherapy, food and beverage flavoring, alternative medicine, cosmetics, and perfumery. Aerial parts of Thymus vulgaris L., Thymus pannonicus All., Lavandula angustifolia L., Lavandula x intermedia, Origanum vulgare L., and Origanum vulgare var. aureum L. were subjected to hydrodistillation, and both resulting fractions were analyzed. The purpose of this study was to determine the chemical composition, antioxidant activity, and total phenolic content of six essential oils and their corresponding hydrolats (HDs) through GC-MS and spectrophotometric analyses. Overall, 161 compounds were identified, some found exclusively in essential oils and others in hydrolats, making them individual products with specific end purposes. The total phenolic content was the highest for the Thymus vulgaris L. EOs (3022 ± mg GAE L−1), because of its high phenolic oxygenated monoterpenes content (thymol and carvacrol) and the smallest for the Lavandula angustifolia L. EOs (258.31 ± 44.29 mg GAE L−1), while hydrolats varied from 183.85 ± 0.22 mg GAE L−1 for Thymus vulgaris L. HD and 7.73 mg GAE L−1 for Thymus pannonicus All. HD. Significant antioxidant effects determined through DPPH• and ABTS•+ assays were also observed in samples with higher hydrophilic compounds. The highest antioxidant activity was determined for Thymus vulgaris L. EO and its corresponding HD. Although EOs are the principal traded economic product, HDs represent a valuable by-product that could still present intense antiseptic activities, similar to their corresponding EOs (thyme and oregano), or have multiple aromatherapy, cosmetics, and household applications (lavender and lavandin).

scholarly journals Essential Oil Composition, Total Phenolic Content, and Antioxidant Activity - Determined from Leaves, Flowers and Stems of Origanum Vulgare L. Var. Aureum

2018 ◽  
Vol 1 (1) ◽  
pp. 555-561
Author(s):  
Cristian Moisa ◽  
Lucian Copolovici ◽  
Georgeta Pop ◽  
Andreea Lupitu ◽  
Virgiliu Ciutina ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Biologically Active ◽  
Total Phenolic ◽  
Alcoholic Extract ◽  
Origanum Vulgare ◽  
Specific Chemical

Abstract Origanum vulgare L. var. aureum is an aromatic medicinal plant belonging to the Lamiaceae family, rich in essential oils and antioxidants. Its specific chemical composition represents an important source of biologically active principles with diverse applications in food products and nutraceuticals. The aim of this study was to determine the differences between chemical composition of volatile oils, phenolic content and antioxidant activity of different plants parts: leaves, flowers, and stems. Essential oils from leaves and flowers had similar compositions with only few differences between γ-terpinene and trans-ß-ocimene. Total phenolic content and antioxidant activity were determined for the hydro-alcoholic extract obtained from post-distillation oregano waste material. The total phenolic content was determined using Folin-Ciocalteu reagent and varied from 3173 to 6522 mg GAE/L. The major compounds identified by HPLC were syringic acid, pyrocatechol, and catechin. Furthermore, all extracts showed high antioxidant activity, ranging from 31.3 to 44.5 mg GAE/L, with an inhibition percent varying from 63.1 to 88.6%.

Total phenolic content and antioxidant activity of plants used in traditional Romanian herbal medicine

2011 ◽  
Vol 6 (3) ◽  
pp. 388-396 ◽  
Author(s):  
Iuliana Spiridon ◽  
Ruxanda Bodirlau ◽  
Carmen-Alice Teaca
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Colorimetric Method ◽  
Aluminium Chloride ◽  
Total Phenolic ◽  
Thymus Vulgaris ◽  
Total Antioxidant Activity ◽  
Origanum Vulgare ◽  
Total Antioxidant

AbstractA number of herbal plants from Romania widely used as natural food additives or for health promotion in traditional medicine were investigated for their antioxidant activity. Methanol extracts were obtained from plants belonging to the Lamiaceae family (lavender Lavandula angustifolia L.; lemon balm Melissa officinalis; sage Salvia officinalis; oregano Origanum vulgare L.; rosemary Rosmarinus officinalis L.; thyme Thymus vulgaris L.; mullein Verbascum phlomoides; mint Mentha longifolia), Clusiaceae family (St John’s wort Hypericum perforatum L.), and Compositae family (elecampane Inula helenium). Total phenolic concentration was determined using the Folin-Ciocalteu phenol reagent method, while total flavonoids were measured using the aluminium chloride colorimetric method. Relationships between total antioxidant activity and composition of plant extracts were evaluated. Origanum vulgare extract showed the highest antioxidant activity and total phenolic content compared to the other plants extracts. A positive correlation was observed between total antioxidant activity and total phenolic content of the analyzed extracts.

scholarly journals Antioxidant activity and total phenolic content of essential oils and extracts of sweet basil (Ocimum basilicum L.) plants

2019 ◽  
Vol 8 (3) ◽  
pp. 299-305 ◽  
Author(s):  
Adel F. Ahmed ◽  
Fatma A.K. Attia ◽  
Zhenhua Liu ◽  
Changqin Li ◽  
Jinfeng Wei ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Ocimum Basilicum ◽  
Total Phenolic ◽  
Sweet Basil

scholarly journals Seasonal Variation in the Chemical Composition, Antioxidant Activity and Total Phenolic Content of Teucrium persicum Boiss. Essential Oils

2010 ◽  
Vol 5 (7) ◽  
pp. 492-498 ◽  
Author(s):  
Hamid Reza Monsef-Esf ◽  
Abdolhossein Miri ◽  
Mohsen Amini ◽  
Yaghoub Amanzadeh ◽  
Abbas Hadjiakhoo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Seasonal Variation ◽  
Chemical Composition ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic

scholarly journals ANTIOXIDANT ACTIVITY, TOTAL PHENOLIC CONTENT OF ESSENTIAL OILS, AND EXTRACT DETERMINED FROM NATURAL LEAVES, IN-VITRO LEAVES, AND CALLUS SOURCES OF MELALEUCA ALTERNIFOLIA – A COMPARATIVE STUDY

2021 ◽  
pp. 141-143
Author(s):  
JEYAKANI M ◽  
RAJALAKSHMI M
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Melaleuca Alternifolia ◽  
Biological Potential

Objectives: Essential oil and their compounds are getting increasing interest due to their multipurpose functional as alternatives to artificial preservatives. The aim of this study was focused to comparative analyses on hydrodistillation, total phenolic content (TPC), and antioxidant activity of essential oil derived from Melaleuca alternifolia (M. alternifolia) leaves procured from natural leaves, in-vitro leaves, and callus sources. Methods: The essential oil was extracted using hydrodistillation. The Folin-Ciocalteu method was used to determine the TPC equivalent and antioxidant activity of essential oils. Results: TPC of essential oil from in-vitro sources of leaves contained 14.79 mg gallic acid equivalent/g dry plant material and its IC50 value was found to be 70% in 1-diphenyl 2-picrylhyorazyl assay. Thus, this source of essential oil showed good free radical scavenging activity. Conclusion: The estimated biological potential was obtained in the essential oil from in-vitro sources of leaves M. alternifolia.

scholarly journals Buffalo Yogurt Fortified with Eucalyptus (Eucalyptus camaldulensis) and Myrrh (Commiphora Myrrha) Essential Oils: New Insights into the Functional Properties and Extended Shelf Life

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6853
Author(s):  
Ahmed Mohamed Hamed ◽  
Awad A. Awad ◽  
Ahmed E. Abdel-Mobdy ◽  
Abdulhakeem Alzahrani ◽  
Ahmad Mohammad Salamatullah
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Essential Oils ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Eucalyptus Camaldulensis ◽  
Inhibition Zone ◽  
Total Phenolic ◽  
Total Phenol Content ◽  
Eucalyptus Oil

Eucalyptus (Eucalyptus camaldulensis) and Myrrh (Commiphora Myrrha) essential oils (EOs) stand out for their benefits in terms of health and functionality. Buffalo set yogurt enriched with different concentrations of EOs (0.3, 0.6, and 0.9%) were investigated. The effects of addition on sensory, syneresis, antibacterial activity, and bioactive properties (total phenol content and antioxidant activity) of yogurt were studied. The most acceptable organoleptic properties of treated yogurt were those samples treated with Eucalyptus oil. The levels of syneresis were decreased by increasing the concentration of EOs. Moreover, the antioxidant activity, antibacterial activity, and total phenolic content were enhanced by increasing the concentration of EOs. Yogurt with 0.9% Eucalyptus oil showed the highest antioxidant activity and total phenolic content. The same concentration of Eucalyptus oil showed the highest antibacterial activity against S. typhimurium (the inhibition zone was 20.63 mm) then E. coli (the inhibition zone was 19.43 mm). On the other hand, the highest antibacterial effect against L. monocytogene was for Myrrh oil-enriched yogurt by 0.9% and the inhibition zone was 19.21 mm. The obtained results showed that Eucalyptus and Myrrh oils can be applied to yogurt to improve its beneficial properties in terms of physical characteristics and for human health due to their antioxidant activity and phenolic materials.

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