Estimation of Potential Availability of Essential Oil in Some Brands of Herbal Teas and Herbal Dietary Supplements (original) (raw)
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Essential oil composition of commercial black tea (Camellia sinensis)
International Journal of …, 2008
The essential oil components of different tea brands were investigated by gas chromatography. The oil yields of dried tea samples were ranged from 0.09% to 0.63%. Twenty-five compounds from Supreme and Lipton Yellow Label tea brands representing 98.0% and 88.0% of the Camellia sinensis oil were identified, respectively. The main ones were b-pinene (51.2%) and a-pinene (30.2%). Nineteen components from Tapal tea brand representing 76.7% of the C. sinensis oil were determined with high contents of muurol-5-en-4-a-ol (10.5%) and muurol-5-en-4-b-ol (31.3%). Fifteen components from Deer and Diana tea brands were identified, accounting for 83.3% and 78.2% of the oil containing a-cadinol and b-pinene. Seventeen components from non-branded teas were determined with high contents of muurol-5-en-4-a-ol and muurol-5-en-4-b-ol. Twenty-one compounds from non-branded Bangladeshi Shezan and Indian teas were also identified. All oils consisted of monoterpenic hydrocarbons, oxygenated monoterpenes and sesquiterpenes.
International Journal of Food Science Technology, 2008
The essential oil components of different tea brands were investigated by gas chromatography. The oil yields of dried tea samples were ranged from 0.09% to 0.63%. Twenty-five compounds from Supreme and Lipton Yellow Label tea brands representing 98.0% and 88.0% of the Camellia sinensis oil were identified, respectively. The main ones were b-pinene (51.2%) and a-pinene (30.2%). Nineteen components from Tapal tea brand representing 76.7% of the C. sinensis oil were determined with high contents of muurol-5-en-4-a-ol (10.5%) and muurol-5-en-4-b-ol (31.3%). Fifteen components from Deer and Diana tea brands were identified, accounting for 83.3% and 78.2% of the oil containing a-cadinol and b-pinene. Seventeen components from non-branded teas were determined with high contents of muurol-5-en-4-a-ol and muurol-5-en-4-b-ol. Twenty-one compounds from non-branded Bangladeshi Shezan and Indian teas were also identified. All oils consisted of monoterpenic hydrocarbons, oxygenated monoterpenes and sesquiterpenes.
Essential oil: economic and herbal importance in aromatherapy
International Journal of Plant Sciences Muzaffarnagar, 2010
Since ancient times, the traditional system of medicine has become aroused the scientific curiosity of the common people, giving birth to an indian medical system called Ayurveda. Compilations of culinary herbs, Charaka and Susruta gave a detailed description of the plants, their properties, extraction techniques to get the active compound and procedures for ingestion of the medicine for effective treatment of various illness or disorder. The Indian knowledge of medicinal properties of herbs is reported in the charak sanhita, believed to be written 3000 years ago. The medicinal plants could grow in plenty across the country in every where. India has been considered as treasure house of valuable medicinal and aromatic plant species. These plants have been used over the thousands year for human welfare in the promotion of health as drugs and fragrance materials. They play an important role in the health care of about 80% of world population. The rest 20% also dependent substantially o...
Essential Oil: Production for Health Care in Current Scenario
Essential oils are complex mixtures of many natural components contains volatile aroma compounds extracts from fragrant plants. It can be extracted from different part of the plant, like leaves, grasses, flowers, wood and shrubs. The chemical properties of these aromatic substances may be due to different chemical compounds. These have medicinal, therapeutic and antimicrobial properties. Essential oil has been obtained from plant by the distillation technique at ancient time. But due to less amount of essential oil present in aromatic medicinal plant. Steam distillation, solvent extraction and supercritical fluid extraction are used to extraction of essential oil for better oil recovery. Oil percent can be evaluated by gas liquid chromatography (GLC) and molecular structures identified by gas liquid mass spectroscopy (GC-MS). The qualities of essential oil depend on both the cultivation of the herbs and extraction process of oils from the plants. Natural compounds are source of safer or more effective substitutes for artificial pesticides and also provide an alternative way to prevent cure diseases. Large scale productions of aromatic plants are good source of earning of farmers. It can be play important role for the growth and economy of the country.
Essential oil composition and nutrient analysis of selected medicinal plants in Sultanate of Oman
Asian Pacific Journal of Tropical Disease, 2013
Proximate parameters, Essential oils, Omani medicinal plants, GC-MS Objective: To evaluate the nutrients and essential oils of five medicinal plants, Juniperus excelsa (J. excelsa), Dodonaea viscosa, Euryops pinifolius, Teucrium polium (T. polium), and Helianthemum lippii that were collected from Jabal Al Akhdar, Oman. Methods: Proximate parameters (moisture, dry matter, ash, crude fats, proteins, fibers, nitrogen, carbohydrates, and energy values) and nutrient analysis (K, Na, Ca, Fe, P, Mg etc.) were evaluated in the five medicinal plants using standard techniques. On the basis of these analysis, T. polium and J. excels were selected for essential oil analysis using a rapid solvent-free microwave extraction method and GC-MS. Results: The results showed that leaves of J. excelsa had highest proportion of crude fats, fibers and energy value while ash was highest in T. polium. J. excelsa was also rich in essential minerals such as calcium, magnesium, potassium and iron while the trace elements and heavy metals composition was marginal. A rapid solvent-free microwave extraction method to extract oil from medicinal plants species showed that only T. polium and J. excelsa yielded oil. The chemical composition of essential oils showed higher proportion of delta-3-carene, limonene, β-eudesmol, ledeneoxide (II), α-trans-bergamatene, linalyl acetate and germacrene. Conclusions: J. excelsa and T. polium are a good source of proximate, minerals and essential oils, which can be considered for healthy life besides their medicinal values.
Preliminary Phytochemical Screening of Five Commercial Essential Oils
2017
The discovery of natural resources from plants remains crucial for the development of new therapeutic remedies. The present study focused on the phytochemical study of commercial essential oils of certain medicinal plants: Thym ( Thymus vulgaris ), basil ( Ocimum basilicum ), sage ( Salvia officinalis ), Garden cress ( Lepidium sativum ) and lettuce ( Lactuca sativa ). The qualitative dosage of twelve secondary metabolites showed the presence of terpenoids and saponins in all tested oils while steroids, alkaloids, anthraquinones and phlobatannins were absent. The results obtained are encouraging and the secondary metabolites present in these oils were responsible for certain activities, hence the interest of their uses in traditional phytotherapy as well as the pharmacological and cosmetic field.
Chemical Structure, Quality Indices and Bioactivity of Essential Oil Constituents
Active Ingredients from Aromatic and Medicinal Plants, 2017
Essential oil (EO) is a mixture of low molecular weight constituents that are responsible for its characteristic aroma. These constituents include terpenoid and non-terpenoid hydrocarbons and their oxygenated derivatives. This chapter focuses on the heterogeneous composition of the essential oils. It discusses the usage of essential oil constituents as a key marker of the oil quality, freshness and unique characteristics. It describes the biological activity and synergistic effect of the essential oil constituents as antioxidant, antibacterial, antifungal and anticancer agents.
Essential Oils in the Development of New Medicinal Products
2020
The essential oils present a complex composition of different chemical compounds, where they present synergic or complementary action among each other, modifying their activity. Among its main components we can find the terpenoids and phenylpropanoids, which are responsible for giving the medicinal properties. Essential oils generally have a pleasant and intense odor, mostly in liquid form, found in different plant organs and are soluble in polar solvents. Essential oils are volatile, and are widely used in the perfume industry, cosmetics, food and beverage aroma, as well as use in aromatherapy to treat some diseases. The traditional knowledge of some plant species with phytotherapeutic properties is currently a source for research in the search for new biologically active compounds and as effective therapeutics that contemplate current health care.
Sustainability
This study aims to study the impact of environmental stresses on the chemical compositions of essential oils and the content of secondary metabolites of the plants most used by the rural population: Thymus vulgaris, Mentha pulégium and Rosmarinus officinalis. The results of the study indicate that the percentage of secondary metabolites increased in the second year when temperature and water pressure increased by 50%. Specifically, coumarin increased from 3.94% to 9.23%, saponins increased from 6.17% to 7.78%, tannins increased from 2.90% to 6.12%, alkaloids increased from 6.72% to 15.95%, and flavonoids increased from 7.42% to 12.90%. However, in the fourth year, the temperature continued to increase, and water availability decreased by 75%, leading to a decrease in the rate of secondary metabolites. Coumarin decreased from 9.22% to 6.15%, saponin decreased from 7.80% to 6.79%, tannin decreased from 6.11% to 4.16%, alkaloids decreased from 15.95% to 10.45%, and flavonoids decreased...
Study on Estimation and Seasonal Variation of Essential Oil in Tea Tree by Hydro Distillation Method
Indian Journal of Agricultural Research, Volume 58 Issue 3: 514-516 (June), 2024
Background: Tea tree (Melaleuca alternifolia) oil is an essential oil that is steam distilled from the leaves of the tea tree, native to Australia. The oil has fresh and pleasant odour and some medicinal properties of odour eliminating as well as antibacterial and antiseptic action. Tea tree oil has found increasing use in certain consumer products including cosmetics. Tea tree oil components will vary depending on the growing environment including air and sunlight conditions. Methods: The present study on estimation and seasonal variation on essential oils from different plant parts of tea tree was carried by hydro distillation method. Result: The study reveals that, the needle leaves and flowers have the higher oil content of 2.30% and 2.25% respectively. The effect of months on different plant parts showed that the oil recovery from needle leaves and flowers were higher during the month of July and August.