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12 articles for “tryptophan”
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Research ArticleOpen accessEvery word in the titleSynthesis and Characterization of Gold Nanoparticles by TryptophaneAzim Akbarzadeh, Davood Zare, Ali Farhangi et al.Problem statement: Preparation and synthesis of gold nanoparticles with small size and suitable stability is very important and applicable particularly in medicine. In this study, we have prepared gold nanoparticles by chemical reduction method employing L-Tryptophane as a reducing agent for ionic gold. Approach: The gold nanoparticles are the most employed amongst the different metallic nanoparticles in the fields of … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 10,046 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBinding of the scutellarin to albumin using tryptophan fluorescence quenching, CD and FT-IR spectraJianniao Tian, Jiaqin Liu, Zhide Hu, Xingguo ChenThe binding of scutellarin with bovine serum albumin (BSA) was investigated at three temperatures, 296k, 310K, and 318K, by the fluorescence, circular dichroism (CD) and fourier transform infrared spectroscopy (FT-IR) at pH 7.40. The binding parameters were determined by Stern-Volmer equation. The thermodynamic parameters were calculated according to the dependence of enthalpy change on the temperature as follows:ΔH0 and ΔS0 … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 13,643 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIn vitro Effects of Beet Root Juice on Stimulated and Unstimulated Peripheral Blood Mononuclear CellsChristiana Winkler, Barbara Wirleitner, Katharina Schroecksnadel et al.Intake of fruits and vegetables rich in antioxidants is suggested to reduce the incidence of cancer and coronary heart disease in humans. Exceptional antioxidant activity of beet root extracts has been reported. Likewise in animal models, e.g., extracts of red beetroot Beta vulgaris var. rubra revealed significant tumor inhibitory effects. Red beetroot concentrate is universally permitted as a food ingredient. … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 4 · 31 Dec 2005 · 9,522 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExtracts of Pumpkin (Cucurbita pepo L.) Seeds Suppress Stimulated Peripheral Blood Mononuclear Cells in vitroChristiana Winkler, Barbara Wirleitner, Katharaina Schroecksnadel et al.In the traditional medicine in North America and Mexico, pumpkin seeds have been used as an anthelmintic agent and for supportive treatment in functional disorders of the bladder. Also anti-inflammatory and cardioprotective activity of pumpkin seeds is discussed. Three different extracts of pumpkin seeds were prepared and effects were investigated in unstimulated human peripheral blood mononuclear cells and in cells … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 10,711 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiosynthesis and Evaluation of Zinc, Copper, and Methionine Feed Supplements Using Saccharomyces cerevisiae on Duck Performance in Minimal Water SystemsHendi Setiyatwan, Muhammad Rifqi IsmirajOptimizing duck performance under minimal water conditions is essential for sustainable poultry farming. Biosynthesizing essential feed supplements like Zinc (Zn), Copper (Cu), and methionine using Saccharomyces cerevisiae presents a promising method to enhance growth and meat quality. This study developed a biosynthesis method for Zn, Cu, and methionine supplements using S. cerevisiae and evaluated their effects on duck performance. In … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 1 · 11 Feb 2025 · 4,405 accessesView PDFCite
Research ArticleOpen accessIn the abstractBinding Interaction between Bovine Serum Albumin and Chicoric Acid, a Food Functional ComponentHaifang Xiao, Quancai Sun, Xuebo Liu, Yuanda SongFuorescence, FTIR and UV-Vis absorption spectroscopy were used to explore the binding between chicoric acid and Bovine Serum Albumin (BSA). Binding characteristics at various levels of temperature have been calculated. The results indicated that chicoric acid statically quenched the intrinsic fluorescence of BSA. The binding constants (Ka) were 4.14×105 L mol-1 at 273K and 4.29×106 L mol-1 at 298 k. … …American Journal of Biochemistry and Biotechnology, Vol. 12, Issue 3 · 19 Sep 2016 · 7,552 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant Capacity and Amino Acid Profiles of Egg TofuMaizura Murad, Aminah Abdullah, Wan Aida Wan MustaphaTofu contains high quality protein source and antioxidant which could reduce risk of cancer. This research aims to determine the effect of soymilk and egg ratios on the antioxidant capacity, daidzein and genistein content and amino acid profiles of egg tofu. Egg tofu was prepared using soymilk and fresh egg in ratios of 1:1, 2:1, 3:1 and 4:1. Glucono-Delta-Lactone (GDL) … …American Journal of Applied Sciences, Vol. 10, Issue 11 · 9 Sep 2013 · 8,917 accessesView PDFCite
Research ArticleOpen accessIn the abstractDietary Effects of Magnesium on Histamine Metabolism and Urine Acidity in Domestic FelinesSarah K. Martin, David L. Harmon, Charlotte E. Conway et al.Magnesium deficiency has been associated with increased histamine production in rats. Limitation of Mg with acidifying foods is common practice for management of urinary tract health in domestic cats. Nine healthy adult female shorthair cats were used in a 3 period random crossover experiment with fixed treatment sequences to test the effects of dietary Mg (0.06, 0.12 and 0.18% DM) … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 4 · 29 Dec 2012 · 8,161 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization of Pullulanase Type II from Bacillus cereus H1.5Hii Siew Ling, Tau Chuan Ling, Rosfarizan Mohamad, Arbakariya B. AriffProblem statement: Pullulanase is one of the important enzymes in starch industry. Search for the pullulanase with distinct features, possibly from easily grown bacterium, is of interest for industrial applications Approach: The extracellular pullulanase produced by Bacillus cereus HI.5 was purified by chromatographic method of DEAE-Sepharose, followed by Superdex gel filtration. The enzyme was characterized in terms of the optimal … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 4 · 31 Dec 2009 · 8,808 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudies on Biomass Production in Auricularia polytricha Collected from Wilberforce Island, Bayelsa State, NigeriaS. G. Jonathan, D. D.S. Bawo, D. O. Adejoye, O. F. BriyaiAuricularia polytricha (Mont) Saccardo, were found growing on decaying logs of wood in their large numbers within the marshy riverine ecosystem area of Wilberforce Island, Bayelsa State, Nigeria. The sporophores of this edible mushroom were tissue cultured and biomass production in submerged liquid medium was assessed. This fungus produced best mycelial biomass (340 mg cm-3) at 25°C after 15 days … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 8,440 accessesView PDFCite