Determination of Antimicrobial and Antioxidant Activities and Chemical Components of Volatile Oils of Atropa belladonna L. Growing in Turkey

2021 ◽  
pp. 1-15
Author(s):  
Mehmet Öz ◽  
Muhammed Said Fidan ◽  
Cemalettin Baltaci ◽  
Osman Ücüncü ◽  
Seyda Merve Karatas
Keyword(s):  
Antioxidant Activities ◽  
Chemical Components ◽  
Atropa Belladonna ◽  
Volatile Oils

scholarly journals Optimising storage conditions and processing of sheep urine for nitrogen cycle and gaseous emission measurements from urine patches

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alice F. Charteris ◽  
Karina A. Marsden ◽  
Jess R. Evans ◽  
Harry A. Barrat ◽  
Nadine Loick ◽  
...  
Keyword(s):  
Freeze Drying ◽  
Storage Conditions ◽  
Chemical Components ◽  
Gaseous Emissions ◽  
Gaseous Emission ◽  
Grazing Systems ◽  
And Storage ◽  
Sheep Urine ◽  
Country Specific

AbstractIn grazing systems, urine patches deposited by livestock are hotspots of nutrient cycling and the most important source of nitrous oxide (N2O) emissions. Studies of the effects of urine deposition, including, for example, the determination of country-specific N2O emission factors, require natural urine for use in experiments and face challenges obtaining urine of the same composition, but of differing concentrations. Yet, few studies have explored the importance of storage conditions and processing of ruminant urine for use in subsequent gaseous emission experiments. We conducted three experiments with sheep urine to determine optimal storage conditions and whether partial freeze-drying could be used to concentrate the urine, while maintaining the constituent profile and the subsequent urine-derived gaseous emission response once applied to soil. We concluded that filtering of urine prior to storage, and storage at − 20 °C best maintains the nitrogen-containing constituent profile of sheep urine samples. In addition, based on the 14 urine chemical components determined in this study, partial lyophilisation of sheep urine to a concentrate represents a suitable approach to maintain the constituent profile at a higher overall concentration and does not alter sheep urine-derived soil gaseous emissions.

Determination of Bioactive Components of 60°С Volatiles from Cinnamomum camphora Branches by TD-GC/MS

2011 ◽  
Vol 230-232 ◽  
pp. 852-856
Author(s):  
Qing Li ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Kuan Peng
Keyword(s):  
Chemical Compounds ◽  
Chemical Components ◽  
Cinnamomum Camphora ◽  
Bioactive Components ◽  
Industrial Materials ◽  
Analytical Result ◽  
Main Components

The chemical components of helium volatiles from the fresh branches of Cinnamomum camphora were studied by TD-GC/MS. The analytical result by 60°С-based TD-GC/MS showed that 55 peaks were obtained from the helium volatiles from the fresh branches of Cinnamomum camphora and 53 chemical compounds were identified. The results showed that the main components were as: Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-, (1R)- (15.4328%), 1,3-Benzodioxole, 5-(2-propenyl)- (14.881%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)- (12.694%), p-menth-1-en-8-ol (9.832%), Bicyclo[2.2.1]heptane, 2-methyl-3-methylene-2-(4-methyl-3- pentenyl)-, (1S-exo)- (6.143%), 1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl- (5.365%), Bicyclo[3.1.1] hept-2-ene, 2,6-dimethyl-6-(4-methyl-3-pentenyl)- (4.527%), Naphthalene, 1,2,3,5,6,8a- hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)- (4.129%), 3-Cyclohexen-1-ol, 4-methyl-1- (1-methylethyl)- (2.965%), Borneol (2.627%), Bicyclo[2.2.1]heptan-2-ol, 1,7,7-trimethyl-, acetate, (1S-endo)- (2.586%), Copaene (2.534%), 1,6,10-Dodecatriene, 7,11-dimethyl-3-methylene-, (Z)- (1.612%), (-)-Isosativene (1.121%), etc. The analytical result suggested that the helium volatiles from the fresh branches of Cinnamomum camphora could be used as industrial materials of biomedicines and spicery.

Chemical indicators of sediment chronology

1993 ◽  
Vol 44 (4) ◽  
pp. 635 ◽  
Author(s):  
GW Kilby ◽  
GE Batley
Keyword(s):  
Urban Areas ◽  
Sewage Treatment ◽  
Alternative Methods ◽  
Chemical Components ◽  
Sedimentation Rates ◽  
Antifouling Paints ◽  
Chemical Indicators ◽  
Laboratory Facilities ◽  
Lead Zinc

The determination of recent sedimentation rates has traditionally used radiochemical dating techniques but, because of limited laboratory facilities and the costs of these techniques, alternative methods are desirable. Information on sedimentation rates and sediment history can be obtained from anthropogenic chemical components whose presence in sediments, especially near urban areas, can be used as markers to assess their chronology. More than one marker, with a known date of introduction, should be used. In this study, organosilicons first used in the early 1950s and tributyltin used in marine antifouling paints from 1972 were examined in sediments from Lake Macquarie, NSW, to supplement the known input of heavy metals from the lead-zinc smelter that has been operating at the northern end of the lake since 1897. The most reliable data were obtained at sites where all three markers were present, and use of these data allowed independent determination of the year of initial operation of a sewage treatment works.

ANTIOXIDANT AND ANTITYROSINASE ACTIVITIES OF PIPER MAINGAYI HK. ESSENTIAL OILS

2015 ◽  
Vol 78 (1) ◽  
Author(s):  
Nur Athirah Hashim ◽  
Farediah Ahmad ◽  
Deny Susanti
Keyword(s):  
Essential Oils ◽  
Chemical Components ◽  
Caryophyllene Oxide ◽  
Volatile Oils ◽  
Ms Analysis ◽  
Sesquiterpene Hydrocarbons ◽  
Fruit Oil

The study was aimed to investigate the chemical components of stem and fruit volatile oils of Piper. maingayi Hk. with their antioxidant and antityrosinase activities. GC and GC-MS analysis of the essential oils obtained from the fresh stem and fruit of P. maingayi Hk. resulted in the identification of 34 and 18 components accounting for 83.6% and 78.7% of the total amount, respectively. Sesquiterpene hydrocarbons and oxygenated sesquiterpenes were the most highly represented classes as the former ranging from 64.7% to 70.7%, and the latter varying from 7.4% to 8.6%. The main constituents of the stem oil were: β-caryophyllene (26.2%), a-cedrene (8.4%), caryophyllene oxide (6.7%) and cis-calamenene (6.2%), while the fruit oil was dominated by δ-cadinene (22.6%), β-caryophyllene (18.8%), a-copaene (11.2%) and a-cadinol (7.1%). The stem and fruit of P. maingayi oils showed significant value for antioxidant and antityrosinase activities. 

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