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102 articles for “Optimum Conditions”
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Research ArticleOpen accessPhrase in the titleOptimum Conditions for Measuring Dehydrogenase Activity of Aspergillus niger using TTCA. E. Ghaly, N. S. MahmoudThe suitability of the triphenyl tetrazolium chloride (TTC) for dehydrogenase activity measurement of the vegetative cells of the fungal species Aspergillus niger was investigated. The triphenyl formazan (TF) yield increased with the increases in TTC concentration, pH, temperature and incubation time within the studied ranges. The effects of individual parameters, as well as the combined effects, on the TF yield … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 9,002 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEnzymatic Hydrolysis of Pretreated Kenaf using a Recombinant Xylanase: Effects of Reaction Conditions for Optimum Hemicellulose HydrolysisNur Izyan Wan Azelee, Jamaliah Md Jahim, Ahmad Fauzi Ismail et al.An efficient hemicellulose hydrolysis has now become a crucial step for xylooligosaccharides production for food additives and nutraceuticals industries. In this study, xylanase hydrolysis of pretreated hemicellulosic kenaf (Hibiscus cannabinus) for substantial hemicellulose hydrolysis was demonstrated. Experiments were performed primarily to investigate the effect of several critical reaction conditions towards the enzymatic hydrolysis of the pre-treated kenaf. The effects of … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 2 · 28 Apr 2016 · 7,816 accessesView PDFCite
Research ArticleOpen accessIn the keywordspH and Temperature Optimization of Several Bacterial Isolates from Mangrove Waters in the Mandeh Area to Produce Cellulase EnzymeFeskaharny Alamsjah, Dwiky Rahmadi Aswan, Anthoni AgustienEnzymes serve as vital biological catalysts, playing a crucial role in numerous industrial processes to accelerate specific biochemical reactions. In this study, we aimed to optimize cellulase enzyme production by investigating the influence of temperature and pH on four bacterial isolates: PUA-18, PUA-21, PUA-28, and PUA-38. The experiment was carried out in triplicates using a one-factor-at-a-time design, with pH and … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 28 Mar 2024 · 6,476 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimization and Molecular Identification of Protease-Producing Thermophilic Bacterial Isolate TUA-26Anthoni Agustien, Mufidhatul Muqarramah, Feskaharny AlamsjahProtease enzymes are used as biocatalysts that can accelerate a reaction. Thermostable enzymes produced by thermophilic bacteria are needed in the industrial field because of their ability to withstand high temperatures. The thermophilic bacterial isolate TUA-26 that produces protease was to analyze the optimum conditions of temperature, pH, agitation, trace elements, carbon sources, and nitrogen sources; the stability of protease … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 6 Apr 2024 · 4,935 accessesView PDFCite
Research ArticleOpen accessIn the abstractDiscovery of a New Thermostable Chitinase from Streptomyces No. 6Xiaowen Que, Yonghong Bao, Qing Liu et al.Chitinases are a class of hydrolases that hydrolyze the β-1, 4-glycosidic bonds between N-acetyl-D-glucosamine (GlcNAc) in chitin. Among chitinases, thermophilic chitinases and thermostable chitinases have received extensive attention in recent years due to their ability to tolerate higher temperatures and maintain enzyme stability for a longer period of time. However, it has previously been observed that not all chitinases are … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 3 · 1 Aug 2024 · 5,115 accessesView PDFCite
Research ArticleOpen accessIn the abstractExtraction Process Optimization and Functional Characteristics of by Papain Solubilized Collagen from Large Yellow Croaker (Pseudosciaena crocea) SkinBiaoshi Wang, Wenfeng Li, Shumin Liu et al.Through collagen extraction from large yellow croaker (Pseudosciaena crocea) skin using an enzymatic method, the extraction optimization and characterization of collagen from raw materials after papain hydrolysis pretreatment are studied. The extraction process was optimized using the response surface methodology in this study. The findings show that the optimal conditions are a ratio (solvent to solid) of 25.0 mL/g, a … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 4 · 26 Dec 2023 · 5,553 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation of Collagen Casings with High Mechanical Properties using Response Surface MethodologyZhike Xie, Ming He, Yuhan Zhai et al.Usages of plastic casing have a number of drawbacks like generation of waste associated with the materials used to package foods and the source of natural casings is limited. So, the interest in the development of biodegradable collagen casing is increasing. For this reason, the present study aimed at developing a new type of collagen casing sprayed with Tea Polyphenols … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 1 · 16 Jan 2021 · 7,506 accessesView PDFCite
Research ArticleOpen accessIn the abstractHigh-Protein Solid-State Symbiotic Fermentation of Sauce Residue for Probiotic FeedXinhe Zhao, Zhuangzhuang He, Wenwei Lu et al.The abuse of antibiotics in animal feed has caused a series of problems in livestock breeding, meat products and the natural environment. In this study, sauce residue was used as the main raw material that includes 25.98% of dry-based crude protein, 3.91% of NaCl, 16.28% of crude fat, 11.06% of the ash and the multi-strain solid-state symbiotic fermentation technology was … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 4 · 9 Oct 2020 · 7,464 accessesView PDFCite
Research ArticleOpen accessIn the abstractRecovery of Manganese from Zinc Smelter SlagRasoul Khosravi, Rasoul Fatahi, Hossein Siavoshi, Fatemeh MolaeiUsing a software-based experiment design, the application of the leaching process for the extraction of manganese from Zinc Plant Slag (ZPS) was investigated. In this study, the effect of different parameters, i.e., H2SO4 concentration, pulp density, agitation rate, temperature and reaction time, was investigated. Response Surface Methodology (RSM) based on the Central Composite Design (CCD) has been implemented to consider … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 4 · 1 Dec 2020 · 7,273 accessesView PDFCite
Research ArticleOpen accessIn the abstractImproved Fuzzy Logic Controller Implemented on FPGA Circuit for Photovoltaic SystemsAouatif Ibnelouad, Abdeljalil Elkari, Hassan Ayad, Mostafa MjahedTo be the photovoltaic arrays capable to transport the maximum power obtainable, it must be combined with Maximum Power Point Tracking (MPPT). To succeed, we will improve a Maximum Power Point Tracking (MPPT) method, based on intelligent technique such as Fuzzy Logic Controller (FLC), compared with a conventional method which is P&O. This improved method applied to a stand-alone photovoltaic … …Journal of Computer Science, Vol. 16, Issue 5 · 5 Jun 2020 · 7,520 accessesView PDFCite