نتایج جستجو برای: between two tannic acids
تعداد نتایج: 4647439 فیلتر نتایج به سال:
in this work, fresh pomegranate peel of three dominant iranian cultivaris was extracted by soxhlet extraction method via different four solvents. the extracts were analyzed by high performance liquid chromatography (hplc), using ultraviolet-visible spectrometric detection. in this study, the extraction yields and presence of seven phytoestrogenic compounds, two tannic acids and their quantities...
Green tea polyphenol (Polyphenon) or tannic acid was administered orally to rats at a dose of 0.01–1.0 or 0.1– 1.0 g/kg for 23 days, and changes both in serum and hepatic lipid concentrations and in fecal steroid excretion were examined. The administration of 0.2–1.0 g/kg of Polyphenon caused a significant decrease in levels of serum HDLcholesterol, whereas tannic acid had no significant effect...
Objective: To assess the phenolic acid content of skin, pulp, covering pulp of seed and seed of raw and ripe jackfruit (Artocarpus heterophyllus). Methods: High Performance Liquid Chromatographic (HPLC) analysis was done of various parts of raw and ripe jackfruits. Results: Raw fruit skin was rich in gallic (22.73 μg/g) followed by tannic and ferulic acids. In ripe fruit, the skin had high amou...
OBJECTIVES The emergence of antibiotic resistance has seriously diminished antibiotic efficacy and an increasing number of infections are becoming difficult to treat. One approach to the restoration of antibiotic activity is to administer them in conjunction with non-antibiotic compounds that depress resistance mechanisms. We describe the activity of ellagic and tannic acids as adjuvants that e...
iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...
background and objectives: tannins are toxic polyphenols that either bind and precipitate or condense proteins. the high tannin content of some plants is the preliminary limitation of using them as a ruminant feed. so, the aim of this study was the isolation and characterization of tannic acid degrading bacterial strains from goat feces before and after feeding on pis- tachio-soft hulls as tann...
Red muscadine (Vitis rotundifolia Michx.) juices with natural organic, phenolic acids and polyphenol compounds were tested against Cronobacter sakazakii. The concentration of total phenolic compounds of commercial baby juices ranged from 176.7 to 347.7 mg/mL. Commercial baby juices showed poor antimicrobial activity, reducing less than 1-log of C. sakazakii in juice samples for 2 h at 37 degree...
this study was designed and conducted to find out if there is any significant relationship between iranian efl learners preferance for one of the three degrees of obtrusiveness in foreign language instruction (focus on form, forms and meaning) and their preferred experiential learing style. to collect the data two questionnaires were used. the first one on the degree of obtrusiveness and the se...
UV irradiation was known as an important factor for skin cancer and also textile fibers and dyes degradation. UV rays have high energy photons degrading dyes and fibers causing fading and rotting of textiles when they are exposed to sunlight. The sun blocking properties of a textile are enhanced when a dye, pigment, delustrant, or UV absorber is present which absorbs UV radiation and releases h...
BACKGROUND AND OBJECTIVES Tannins are toxic polyphenols that either bind and precipitate or condense proteins. The high tannin content of some plants is the preliminary limitation of using them as a ruminant feed. So, the aim of this study was the isolation and characterization of tannic acid degrading bacterial strains from goat feces before and after feeding on Pistachio-Soft Hulls as tannin ...
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