Organic chemistry
Abdolreza Abri; Mojgan Maleki
Volume 4, Issue 2, pp. 133-235, Serial No. 11 , April 2016, , Pages 146-154
Abstract
Elaeagnus angustifolia has many potential applications in drugs, detergents, perfumes, herbal teas and show various biological and pharmacological activities, such as anti-inflammatory, antipyretic and other effective treatment of disease. Gallic acid (GA) and its derivative methyl gallate (MG) are well ...
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Elaeagnus angustifolia has many potential applications in drugs, detergents, perfumes, herbal teas and show various biological and pharmacological activities, such as anti-inflammatory, antipyretic and other effective treatment of disease. Gallic acid (GA) and its derivative methyl gallate (MG) are well studied plant phenolics. They have exhibited anticancer effects in several cancer cell lines. In the present work, The E. angustifolia leaves were collected from the enclosure of Azerbaijan Shahid Madani University trees and were dried in the shade condition, were milled and extracted successively with n-hexane, ethyl acetate and methanol in a Soxhlet apparatus for 24 h. Further study on the methanol extract of this plant has resulted in the isolation of gallic acid. The structure of the compound was established by spectroscopic methods. Antioxidant properties of flavonoid and phenolic compoundes were measured.
Organic chemistry
Mehdi Nabati; Mehrdad Mahkam; Hassan Heidari
Volume 2, Issue 4, pp. 236-325, Serial No. 5 , October 2014, , Pages 236-243
Abstract
Turmeric (Curcuma longa L.) is extensively used as a spice, food preservative and colouring material. It has been used in traditional medicine for various diseases. Curcumin, the main yellow bioactive component of turmeric has been shown to have a wide spectrum of biological actions. Heretofore, it has ...
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Turmeric (Curcuma longa L.) is extensively used as a spice, food preservative and colouring material. It has been used in traditional medicine for various diseases. Curcumin, the main yellow bioactive component of turmeric has been shown to have a wide spectrum of biological actions. Heretofore, it has been reported that natural colored extracts isolated from turmeric rhizomes with many methods such as maceration, digestion, microwave and infusion. In this paper, it was tried to isolate and characterize curcumin from the curcumin rhizomes marketed in Maragheh city of Iran by soxhlet extraction technique in methanol solvent. The advantage of this technique is the isolation of large amounts of curcumin (208 mg from 25 g turmeric rhizomes powder) with smaller quantity of methanol.
Organic chemistry
Mehrdad Mahkam; Mehdi Nabati; Hadieh Rahbar Kafshboran
Volume 2, Issue 1, pp. 1-81, Serial No. 2 , January 2014, , Pages 34-38
Abstract
Lawsone a natural pigment present in the henna leaves has been used as a skin and hair dye since 1400 BC. The concentration of this natural compound in leaves varies from place to place depending upon many of the environmental factors and the highest quantity reported so far is about 1% of the dry mass. ...
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Lawsone a natural pigment present in the henna leaves has been used as a skin and hair dye since 1400 BC. The concentration of this natural compound in leaves varies from place to place depending upon many of the environmental factors and the highest quantity reported so far is about 1% of the dry mass. Heretofore, it has been reported that natural colored extracts and isolate from Henna leaves with many methods such as maceration, digestion, microwave and infusion. In this paper, regarding the therapeutic effects and traditional applications of henna, it was tried to isolate and characterize Lawsone from the henna leaves marketed in Tabriz city of Iran by soxhlet extraction technique in methanol solvent. The advantage of this technique is the isolation of large amounts of lawsone (720 mg from 40 g henne leaves powder) with smaller quantity of methanol.