4 results for “Isomerization”

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Research ArticleOpen accessEvery word in the titleEffect of Ultra-High Pressure Technology on Isomerization and Antioxidant Activity of Lycopene in Solanum LycopersicumSiqun Jing, Zainixi Lasheng, Saisai Wang, Hui ShiTo evaluate the influence of the Ultra-High Pressure processing (UHP) on the isomerization and antioxidant activity of lycopene in tomatoes (Solanum lycopersicum), High Performance Liquid Chromatography (HPLC) and Ultraviolet-Visible Spectroscopy (UV-Vis) were used to separate and identify the isomer of lycopene. The scavenging activities against DPPH∙and∙OH present samples with and without UHP treatment were tested with ascorbic acid as positive … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 2 · 21 Jun 2020 · 7,225 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Meat-Derived Lactic Acid Bacteria, Lactobacillus plantarum IIA, Expresses a Functional Parvulin-Like Protein with Unique Structural PropertyCahyo Budiman, Irma Isnafia Arief, Fernandes Opook, Muhammad YusufThe genome sequence of a Lactic Acid Bacterium (LAB) Lactobacillus plantarum IIA contains a single gene encoding a parvulin-like protein (Par-LpIIA). This protein belongs to Peptidyl Prolyl cis-trans Isomerase (PPIase) family proteins that catalyze a slow cis-trans isomerization of cis prolyl bond during protein folding. This study aims to provide molecular and biochemical evidences of the existence of Par-LpIIA in … …OnLine Journal of Biological Sciences, Vol. 21, Issue 1 · 26 Feb 2021 · 7,023 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNovel D-Galactose Isomerases from Lactobacillus Strains Isolated from the Sweet Sap of Agave atrovirensMaría Miriam Hernández-Arroyo, Miguel Ángel Plascencia-Espinosa, María Eugenia Hidalgo-Lara et al.D-tagatose is a natural monosaccharide used as a low-calorie sugar substitute in food, beverage and pharmaceutical products. Although it is a rare sugar, it can manufacture by enzymatic isomerization of D-galactose Isomerase (D-GI). In this study, a screening was carried out to search microorganism producing D-GI in aguamiel. A rich selective medium was used in arabinose extracted from gum arabic. … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 4 · 11 Dec 2018 · 10,238 accessesView PDF Cite

Research ArticleOpen accessIn the abstractElectrochemical Characteristics of Some Purpurins in Aqueous and Nonaqueous SolutionsFarouk A. Rashwan, Hossnia S. Mohran, Ahmed A. El-SamahyThe Electrochemical Impedance Technique (EIS) and the Cyclic Voltammetric method (CV) were used to investigate the behavior of purpurin (P), Anthrapurpurin (AP) and Benzopurpurin (BP) in aqueous and in N, N-dimethylformamide (DMF) media. In the CV experiments, both the radical and the dianion of these substances were assumed to form of limited stability due to chemical protonation. In case of … …American Journal of Applied Sciences, Vol. 2, Issue 7 · 31 Jul 2005 · 6,743 accessesView PDF Cite