Posted by admin on Dec 31, 2019 in |
Plants and fruits have medicinal purposes, and they are being used long before the prehistoric period. Among the different varieties of citrus fruits, Citrus aurantifolia (Kagoji labu) is widespread in tropical and subtropical regions around the World. It is one of the major citrus fruits and widely consumed, but there is limited evidence about its health-promoting properties. In the present study, we evaluated the phytochemical and antioxidant properties of this citrus fruit since phytochemicals through anti-oxidant properties have played a significant role in human health protection and treatment of many diseases. Polyphenol, flavonoid, tannin and reducing sugar contents were found 4.68 ± 0.36 g GAE / 100 g extract, 615.38 ± 17.75 mg CE / 100 g extract, 12.5 ± 6.25 g TAE / 100 g extract and 51.69 ± 7.50 g GE / 100 g extract, respectively. Significant antioxidant activities of C. aurantifolia via 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and ferric reducing antioxidant power (FRAP) were detected. Earlier studies have reported that almost all species of citrus...
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Posted by admin on Dec 31, 2019 in |
The objective of this study was the extraction, recuperation, identification and bioactivity evaluation of the main bioactive compounds present in Chrysactinia mexicana A. Gray, polyphenolic compounds from aerial parts of Chrysactinia mexicana A. Gray were purified using a liquid chromatography column with ambulate XAD-16, first elution was made with distilled water, then ethanol was used to recover the phenolic fraction. These compounds were screened for antibacterial activity using agar diffusion method and antioxidant potential method was determined by ABTS•+, DPPH• and FRAP methods. Most bioactive compounds studied were effective against Klebsiella pneumoniae ATCC 13883, Escherichia coli ATCC 8739 and Salmonella enteric ATCC 7251, the compounds presented moderate inhibition against Staphylococcus aureus CDBB 1005. The polyphenolic profile was determined by HPLC/ESI/MS. The content of total hydrolyzable polyphenols (THP) after purification was 18.17 mgg -1, the content of total condensed total condensed polyphenols (TCP) determined after the extract purification was 18.25 mgg -1. The antioxidant activity of polyphenolic compounds of C. Mexicana (CMG) was determined by the IC50 of ABTS•+– scavenging...
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Posted by admin on Nov 30, 2018 in |
The present study deals with the chemistry and antifungal activity of essential oil (EO) of two species of Mentha viz. Mentha piperita and Mentha arvensis which was extracted using Clevenger-type apparatus. The percent yield of EO of M. arvensis (2.8%) was found higher than M. piperita (2.1%). Compositional analysis of M. piperita and M. arvensis EO oil by GC-MS revealed the presence of 51 and 35 compounds, respectively. Vibration spectroscopy performed in the 500-4000 cm-1 wave number region depicted variations in the presence of functional groups among the two EOs. The M. piperita EO exhibited better antifungal potential against Penicillium digitatumin comparison to M. arvensis EO. The results were found at par with the standard Carbendazim 50 WP at 250 µg/mL. Optical research microscopy study depicted profound morphological changes in hyphae, and spore-bearing organs of EO treated fungus, thereby supporting the better antifungal activity of M. piperita...
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Posted by admin on Nov 30, 2018 in |
The purpose of this study was to substantiate the use of suspension of Chlorella genus microalgae as the most valuable raw material for the preparation of carotene and chlorophyll а. The method is proposed for ultrasonication of Chlorella vulgaris microalgae suspension to increase the availability of biologically active substances and improve the microbiological performance of the prepared product. Before and after ultrasonication of samples, we determined the content of chlorophylls (a, b, c) and carotenoids using the spectrophotometric method, the level of total bacterial contamination using the method of limiting dilutions on MacConkey agar and microscopic study of microalgae and bacteria cell viability. It has been established that the ultrasonication method at wave amplitude 16 µm allows to transfer pigments into the water phase, inhibit the viability of bacteria and obtain homogenization of the Chlorella vulgaris microalgae suspension with preservation of carotenoids and green chlorophyll а. Thus, the combined use of ultrasonication and parallel plating on MacConkey agar seems to be promising given preparation and quality control of axenic...
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Posted by admin on Nov 30, 2018 in |
Ulcers are a breach in the mucosa of the alimentary tract that extends through the muscularis mucosae into the submucosa or deeper. They can occur in any portion of the gastrointestinal tract exposed to the excessive amount of acid-peptic juices. Prevalence of peptic ulcer is approximately 11% to 14% for men and 8% to 11% for women during the age of 30 to 50 years. The occurrence of peptic ulcer is very rare above 60 years but produce death in 80% of cases. This review gives an overview of the symptoms, diagnosis, treatment, prevalence, and management of...
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