scholarly journals Chemical composition and anti-diabetic activities in two novel accessions of Cinnamon (Cinnamomum zeylanicum) leaves grown in Sri Lanka

2022 ◽  
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Cinnamomum Zeylanicum

Chemical Composition of Volatile Oil from Cinnamomum zeylanicum Buds

2002 ◽  
Vol 57 (11-12) ◽  
pp. 990-993 ◽  
Author(s):  
Guddadarangavvanahally K. Jayaprakasha ◽  
Lingamallu Jaganmohan Rao ◽  
Kunnumpurath K. Sakariah
Keyword(s):  
Chemical Composition ◽  
Volatile Oil ◽  
Cinnamomum Zeylanicum ◽  
First Time

The hydro-distilled volatile oil of the Cinnamomum zeylanicum (C. zeylanicum) buds was analyzed using GC and GC-MS for the first time. Thirty-four compounds representing ≈ 98% of the oil was characterized. It consists of terpene hydrocarbons (78%) and oxygenated terpenoids (9%). α-Bergamotene (27.38%) and α-copaene (23.05%) are found to be the major compounds. A comparison of the chemical composition of the oil was made with that of flowers and fruits.

scholarly journals Chemical composition and gross energy content of commonly available animal feedstuff in Sri Lanka

2019 ◽  
Vol 47 (1) ◽  
pp. 79
Author(s):  
S Pavithra ◽  
JK Vidanarachchi ◽  
M Sarmini ◽  
S Premaratne
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Energy Content ◽  
Gross Energy

scholarly journals Chemical composition and antioxidant activity in the essential oil of Cinnamomum zeylanicum Nees with medicinal interest

2020 ◽  
Vol 14 (7) ◽  
pp. 326-330
Author(s):  
P. R. E. Ribeiro ◽  
I. F. Montero ◽  
S. A. M. Saravia ◽  
V. P. Ferraz ◽  
R. A. Santos ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Cinnamomum Zeylanicum

scholarly journals Medicinally Important Herbal Flowers in Sri Lanka

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
S. L. A. Gunawardana ◽  
W. J. A. B. N. Jayasuriya
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Traditional Medicine ◽  
Therapeutic Effects ◽  
Syzygium Aromaticum ◽  
Human Beings ◽  
Plant Resources ◽  
Plant Parts ◽  
Anticancer Properties ◽  
Medical Issues

Background. The plant kingdom is rich with a numerous number of plants with various medical properties which can be used to treat various medical issues. Sri Lanka is a country full of biodiversity which is gifted with many plant resources. It has a rich history of traditional medicine systems consisting of Ayurveda, Unani, and Deshiya Chikitsa, where these plant resources are used as remedies for the diseases. In the traditional medicine system, various plant parts such as leaves, roots, fruits, flowers, and bark are used to treat disease conditions. Although less attention is paid to the medicinal importance of the flowers, some of them have been used to treat many diseases from the ancient time. Some properties of the flowers may differ from the properties of the other plant parts. For example, Sesbania grandiflora (Katuru murunga) flowers have shown anticancer properties against various cell models whereas some flowers have shown antispermatogenic properties. Flowers of Woodfordia floribunda (Militta) are added as fermenting agents in the preparation of Arishtas in Ayurveda. Also the most popular Clove oil is obtained from the flower buds of Syzygium aromaticum (Karabu-neti) which is used to treat toothaches since it has antibiotic and antiseptic properties. This article gives an overview of herbal flowers used in the traditional medicine system of Sri Lanka and their pharmacological importance. Method. A comprehensive literature survey was done on the medicinally important flowers in Sri Lanka. Data was collected from Libraries of Ayurveda in Sri Lanka and from scientific databases. Results. According to the survey many flowers are used as astringent, cardiac tonic, and febrifuge. Also some flowers are used to treat dysentery, diarrhoea, and indigestion. Some flowers are useful in the treatment of bleeding piles while some are useful in the treatment of asthma and bronchitis. Conclusion. It was revealed that there are many flowers with valuable therapeutic effects. Traditional medicine systems prevailing in Sri Lanka have made use of these flowers with therapeutic effects to cure so many diseases. The review of medicinally important herbal flowers provides knowledge and pharmacological leads which will help for the wellbeing of the human beings. Although there are phytochemical studies done to identify the chemical compounds on some flowers, chemical composition of many flowers remains unrevealed. So further studies need to be done to identify the chemical composition of these flowers.

Source apportionment of rainwater chemical composition in wet precipitation at Kelaniya in Sri Lanka

2020 ◽  
Vol 13 (12) ◽  
pp. 1497-1504
Author(s):  
A. B. Liyandeniya ◽  
M. P. Deeyamulla ◽  
N. Priyantha
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Source Apportionment ◽  
Wet Precipitation

scholarly journals Phytochemistry and Pharmacology of Munronia Genus (Meliaceae)

2021 ◽  
Vol 21 (6) ◽  
pp. 1586
Author(s):  
Kindi Farabi ◽  
Unang Supratman
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Secondary Metabolite ◽  
Bioactive Compounds ◽  
Southern China ◽  
Biological Activities ◽  
The Philippines ◽  
Tropical Area

Munronia is a genus in the Meliaceae family, which consists of over 17 species that are distributed in the subtropical and tropical area of Asia, including southern China, Vietnam, Myanmar, Sri Lanka, India, Indonesia, and the Philippines. It is known that these plants contain valuable bioactive compounds. Since the first isolation of new stigmastane steroid was reported in 2003, researchers have been able to study the chemical composition of these plants, especially the largest secondary metabolite obtained, limonoid. About 97 compounds were isolated successfully and characterized. The reported compounds showed various biological activities, such as antifeedant, antimicrobial, antiangiogenic, cytotoxic against several cancer cell lines, inducing apoptosis, and anti-tobacco mosaic virus activities. Therefore, the results suggest that the use of this plant as a source of bioactive compounds is promising for the medicinal chemistry field.

A comparative analysis of bark and leaf essential oil and their chemical composition, antioxidant, anti-inflammatory, antimicrobial activities and genotoxic potential of North East Indian Cinnamomum zeylanicum Blume

2019 ◽  
Vol 09 ◽  
Author(s):  
Roktim Gogoi ◽  
Neelav Sarma ◽  
Rikraj Loying ◽  
Sudin Kumar Pandey ◽  
Twahira Begum ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Protein Denaturation ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Cinnamomum Zeylanicum ◽  
North East ◽  
Leaf Essential Oil ◽  
Anti Inflammatory

Background: Cinnamomum zeylanicum Blume bark and leaf essential oil possesses eugenol as the major component. Both the essential oil have the potential antioxidant, anti-inflammatory, antimicrobial and negligible genotoxicity. Objective: A comparative chemical composition and biological evaluation of Cinnamomum zeylanicum Blume, bark and leaf essential oils, originated from North-East India has been investigated in the present study. Methods: Gas chromatography/mass spectroscopy analysis was used to investigate the chemical composition of the essential oil samples. DPPH free radical scavenging activity, reducing power assay was used for antioxidant activity evaluation. Similarly, egg albumin denaturation assay, protease inhibitory activities were used for anti-inflammatory activity, while genotoxicity was evaluated by using Allium cepa assay. Results: The results showed that eugenol is the major component of C. zeylanicum bark (84.48%) and leaf (48.78 %) essential oil. Significant antioxidant activity were observed for both essential oils in the DPPH free radical scavenging assay (IC50= 103.2 μg/mL, bark; IC50= 234.7 μg/mL, leaf), and reducing power assay (absorbance of 1.802 nm, 0.907 nm in 48 µg/mL for bark and leaf essential oil respectively). In-vitro anti-inflammatory activity revealed strong potential of leaf essential oil (protein denaturation assay, IC50= 0.05279 μg/mL; protease inhibitory activity IC50= 3.607 μg/mL) in comparison to bark essential oil (protein denaturation assay IC50= 0.1491, protease inhibitory activity IC50= 61.06). Allium cepa root growth test, mitotic index, and chromosomal aberration test were performed to investigate the genotoxicity of C. zeylanicum bark and leaf essential oil, which resulted no toxic nature of both the essential oils. Antimicrobial activity against eight bacterial and fungal strains revealed good antimicrobial properties with the MIC value of Staphylococcus aureus at 5 μL/mL (bark), Aspergillus niger at 2.5 μL/mL (bark); Bacillus cereus at 5 μL/mL (leaf), Aspergillus niger at 2.5 μL/mL (leaf). Conclusion: Collectively, these findings indicated the strong biological potential of both essential oils, although bark essential possesses better biologically activities than the leaf essential oil and could be used in the food and beverages industries.

Notes on the chemical composition of zirconolite with thorutite inclusions from Walaweduwa, Sri Lanka

1997 ◽  
Vol 61 (408) ◽  
pp. 721-725 ◽  
Author(s):  
J. C. M. de Hoog ◽  
M. J. van Bergen
Keyword(s):  
Chemical Composition ◽  
Sri Lanka
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