نتایج جستجو برای: herbal compounds
تعداد نتایج: 248115 فیلتر نتایج به سال:
Aromatic plants have been used worldwide in human diet to improve the flavor and taste of meals or as herbal infusions. Beyond the culinary purposes, these plants are also used for their medicinal purposes, as antimicrobial, anti-inflammatory, antimutagenic and anti-carcinogenic, among others. In the present study, 39 species of condiments and/or herbal infusions were assessed in order to provi...
High-speed counter-current chromatography (HSCCC) was successfully used for the isolation and purification of coumarin compounds from Cortex fraxinus, the Chinese herbal drug. n-Butanol-methanol-0.5% acetic acid (5:1.5:5, v/v) was used as the two-phase solvent system. 14.3 mg of fraxin, 26.5 mg of aesculin, 5.8 mg of fraxetin and 32.4 mg of aesculetin with the purity of 97.6, 99.5, 97.2 and 98....
The structure of unknown compounds present in herbal products was elucidated using liquid chromatography-electrospray ionization-mass spectrometry, direct-infusion electrospray ionization-mass spectrometry, and nuclear magnetic resonance. Compounds 1-3 were identified as sildenafil analogues, 1 bearing an N-ethylpiperazine moiety instead of an N-methylpiperazine, and an acetyl group instead of ...
We all are exposed through air, food, drinks and skin contacts to harmful compounds throughout the period of our lifetime, including, a variety of pharmaceuticals and food-de‐ rived carcinogen metabolite (e.g. N-acetoxy-PhIP), [52], plant toxins (such as glycoalkaloids in nightshades1, cyanogenic glucosides 2, or pyrrolizidine alkaloids in some herbs and herbal teas), xenobiotics3 producing dur...
Among hundreds of formulae of Chinese herbal prescriptions and recently extracted active components from the herbs, some of which had demonstrated their functions on nervous system. For the last decade or more, Gingko biloba and Polygala tenuifolia were widely studied for their beneficial effects against damage to the brain. Two compounds extracted from Apium graveolens and Rhizoma coptidis, bu...
Donor urine obtained for a drug study was collected from donors reporting no use of prescription, overthe-counter or herbal preparations in the eight days prior to donation. However, LC/MS analysis showed that a number of non-endogenous compounds were detected in this urine. To identify the compounds, information from the mass spectral data set was used in a search of the Human Metabolome datab...
Natural products with antioxidant properties have been extensively utilized in the pharmaceutical and food industry and have also been very popular as health-promoting herbal products. This review provides a summary of the literature published around the first decade of the 21st century regarding the oral bioavailability of carotenoids, polyphenols and sulfur compounds as the three major classe...
Millettia nitida var. hirsutissima is a Chinese herbal medicine used for the treatment of gynecological diseases. An HPLC/DAD/ESI-MS n method was established for the rapid separation and characterization of bioactive flavonoids in M. nitida var. hirsutissima. A total of 32 flavonoids were detected, of which 14 compounds were unambiguously characterized by comparing their retention time, UV, and...
Herbal medicine has become one of the considered alternatives in curing many diseases, including diabetes mellitus. It was found that Insulin Plant (Costus pictus) and Cherry Tree (Muntingia calabura) contain compounds can help treating diabetes. This study aims to investigate compare anti-diabetic activity fresh leaf extracts plant […]
*Corresponding author: Mahmoud Rafieian-Kopaei, Medical Plants Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran. E-mail: [email protected] Nowadays, more and more people are turning away from conventional medicines, because they believe that ‘natural’ substances like medicinal plants are safer than synthetic substances. The increasing use of medicinal plants has res...
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