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130 results for “enzyme activity”
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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 · 4,409 accessesView PDFCite
Research ArticleOpen accessIn the abstractNon-Target Inhibition of Antioxidant Enzymes in Honey Bees (A. mellifera and A. florea) Upon Pesticide ExposureAmal Ahmed Berjawi, Syed Salman Ashraf, Mohammad Ali Al-DeebUnderstanding how different insecticides influence bee health is very essential. The aim of this work was to evaluate enzyme kinetics and inhibition by insecticides in Apis mellifera and Apis florea. Tested enzymes showed variable affinity to substrates. In A. florea, glutathione S-transferase (GST) showed significantly higher affinity for its 1-Chloro-2,4-Dinitrobenzene (CDNB) substrate than in A. mellifera. Carbosulfan caused the highest … …OnLine Journal of Biological Sciences, Vol. 20, Issue 2 · 10 Apr 2020 · 7,401 accessesView PDFCite
Research ArticleOpen accessIn the abstractQSAR Modeling of Thirty Active Compounds for the Inhibition of the Acetylcholinesterase EnzymeNour El Houda Hammoudi, Yacine Benguerba, Widad SobhiThis work aims at developing a reliable and predictive QSAR model which allows, on one hand, an exploration of the main molecular descriptors responsible for the inhibitory activity towards the Acetylcholinesterase enzyme and, on the other hand, predict the inhibitory activity of new compounds before testing them experimentally. This study involves a series of DL0410 and its 29 DL0410 derivatives. … …Current Research in Bioinformatics, Vol. 8, Issue 1 · 2 Mar 2020 · 11,431 accessesView PDFCite
Review ArticleOpen accessIn the abstractOptimization of Red Sorghum (Sorghum bicolor (L.) Moench) Malt Mashing Using Response Surface MethodologyArthur Kapepa Amisi et al.The Response Surface Methodology (RSM) was used to optimize the Released Glucose Equivalent during red sorghum malt mashing. Three parameters were tested: the β-amylase (EC 3.2.1.2) temperature level (min value = 62°C and max value = 63°C, TB), the α-amylase (EC 3.2.1.1) temperature level (min value = 72.5 and max value = 77.5°C, TA) and the duration of each stage … …American Journal of Applied Sciences, Vol. 21, Issue 1 · 28 Nov 2024 · 8,096 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction and Characterization of Hydrocarbon Degrading Peroxidase from Rhizopus and Saccharomyces SpeciesFerdinand U. Paschaline, Onyeocha O. Ignatius, Ezeji E. Uchechukwu et al.The production, characterization and partial purification of hydrocarbon degrading peroxidase from di-culture of Rhizopus and Saccharomyces species was assessed. The fungi were isolated from hydrocarbon polluted soil and identified using standard microbiological and biochemical techniques. Fermentation was carried out for enzyme production and the extracellular extract was precipitated with 50% ammonium sulphate salts and further purified by gel filtrationusing sephadex … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 4 · 7 Dec 2019 · 7,402 accessesView PDFCite
Research ArticleOpen accessIn the abstractGadolinium at Low Concentration Suppresses both Osteoclastic and Osteoblastic Activities in the Scales of GoldfishNobuo Suzuki, Kazuki Watanabe, Aika Sekimoto et al.For determining the effect of environmental pollutants on fish bone metabolism, we have developed an in vitro bioassay system using teleost scales that has osteoclasts, osteoblasts and bone matrix as markers: alkaline phosphatase (ALP) for osteoblasts and tartrate-resistant acid phosphatase (TRAP) for osteoclasts. Using this bioassay, the influence of gadolinium (Gd) on osteoclasts and osteoblasts of goldfish scales was examined … …American Journal of Environmental Sciences, Vol. 15, Issue 4 · 20 Sep 2019 · 8,457 accessesView PDFCite
Research ArticleOpen accessIn the abstractProduction, Extraction and Characterization of Lipases from the Antarctic Yeast Guehomyces pullulansLuis Lascano-Demera, Patricia Portero Barahona, Enrique Javier Carvajal BarrigaThe production of extracellular lipases from the Antarctic yeast Guehomyces pullulans is induced using an olive oil medium as an inductor substrate and a first characterization of its enzyme, using the protein extract obtained from the medium, is described. For this, the effect of pH and temperature on the lipase activity are evaluated and the enzyme kinetic for the lipase … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 2 · 11 Apr 2019 · 10,031 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis of Interferon-Gamma Release Assay Results for Latent Tuberculosis Infection Diagnosis at a Referral Clinical Laboratory in South KoreaTae Soung Kim, Ga Yeon Kim, Young Ki Lee, Jae Kyung KimThe world health organization states that individuals with Latent Tuberculosis Infection (LTBI) are infected with Tuberculosis (TB) bacteria but do not show symptoms of active disease. However, they are at possibility of developing vigorous TB and potentially transmitting the illness to others. In 2018, South Korea reported a 14.8% positivity rate in LTBI screening, with higher rates observed among older … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 4 · 25 Oct 2023 · 6,037 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiological Activity of Lactic Acid Based Feed Additive and its Physiological Effect on the Animal OrganismNadezhda Nikolaevna Lantseva, Alexander Nikolaevich Shvydkov, Lyudmila Anatolyevna Ryabukha, Veronica Valeryevna EvsyukovaThe data obtained as a result of the study of the enzymatic activity of the lactic acid based feed additive LAFA, based on various bacteria, are consistent with the results of the research presented in the publications on the matter, concerning the fact that probiotic bacteria have enzymatic activity. The conducted studies revealed the leading enzymatic properties of bifidobacteria in … …OnLine Journal of Biological Sciences, Vol. 18, Issue 4 · 4 Oct 2018 · 7,420 accessesView PDFCite
Research ArticleOpen accessIn the abstractOligoasthenoteratozoospermia and Necrozoospermia: A Study of Sperm Na+, K+-ATPase α4 and Plasma Membrane Ca2+-ATPase 4 RegulationSilvia W. Lestari, Dessy Noor Miati, AsmarinahThe oligoasthenoteratozoospermia (OAT) and necrozoospermia are the extreme sperm abnormalities in male infertility. These sperm abnormalities may be related to the imbalance of ion transport which mediated by the ion-transporting P-type ATPases, such as Na+, K+-ATPase and Ca2+-ATPase. Until now, there is limited data about the activity of Na+, K+-ATPase and Ca2+-ATPase in sperms in the OAT and necrozoospermia samples. … …OnLine Journal of Biological Sciences, Vol. 18, Issue 3 · 3 Aug 2018 · 11,273 accessesView PDFCite