Results 121 to 130 of about 97,756 (253)

Extraction of Chitosan from shells of crab (Liocarcinus vernalis)

Applied Food Research
The purpose of this study was to investigate on advantages and standard method of extraction chitosan polymer from chitin found in crab (L. vernalis) shell as a significant source of chitin and chitosan.
Ali Aberoumand, Maryam Hoseinian
doaj   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source

Determination of the Deacetylation Degree of Chitooligosaccharides

, 2017
The methods for determination of chitosan content recommended in the Chinese Pharmacopoeia and the European Pharmacopoeia are not applicable for evaluation of the extent of deacetylation (deacetylation degree, DD) in chitooligosaccharides (COS).
Sihui Wu, Zhengquan Su, Chuhan Fu, Guihua Liu, Jiao Guo, Yao Jiang   +5 more
core   +1 more source

Digestate-Based Liquid Growth Medium for Production of Microbial Chitosan

Fermentation
This study investigated the feasibility of using both the solid and the liquid fractions of waste from the anaerobic digestion process—the digestate—as a possible liquid growth medium for fungal production of chitosan.
Silvia Crognale, Cristina Russo, Eleonora Carota, Ilaria Armentano, Federico Di Gregorio, Alessandro D’Annibale, Alessio Cimini, Maurizio Petruccioli   +7 more
doaj   +1 more source

Deacetylation of H4-K16Ac and heterochromatin assembly in senescence

, 2012
Background Cellular senescence is a stress response of mammalian cells leading to a durable arrest of cell proliferation that has been implicated in tumor suppression, wound healing, and aging.
Thuret Jean-Yves, Contrepois Kévin, Fenaille François, Mann Carl, Courbeyrette Régis   +4 more
core   +1 more source

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

Journal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva, Maria Aparecida Barros, Antônio Carlos Ferreira Batista, Anizio Marcio de Faria   +3 more
wiley   +1 more source

Design and Performance of a High‐Efficiency Inhibitor: Synergistic Effect of Modified Chitosan and Boron Nitride Nanosheets on Steel Protection

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal corrosion causes significant economic losses and safety hazards, underscoring the urgent need for effective, environmentally friendly corrosion inhibitors. In this study, an organic–inorganic composite inhibitor, chitosan–glucose–BN (CS–GL–BN) was developed to protect Q235 mild steel in a 3.5‐wt% NaCl solution.
Shanjun Xu, Bing Xia, Penghang Yan, Deqing Kong, Dong Li   +4 more
wiley   +1 more source

Modulation of Animal Gut Health by Milk Oligosaccharide

Animal Research and One Health, EarlyView.
This review summarizes the composition and structural characteristics of MOs across different mammalian species, and elucidates their roles and mechanisms in maintaining intestinal homeostasis by regulating gut microbiome and enhancing intestinal chemical, physical and immune barriers.
Ningtao Chen, Nana Jing, Shiyu Tao, Mingyue Fei, Wentao Lv, Hua Yang, Yingping Xiao, Haiqin Wu   +7 more
wiley   +1 more source

Further investigation on the degree of deacetylation of chitosan determined by potentiometric titration [PDF]

The degree of deacetylation (DDA) of various low molecular weight chitosan (LMWC) species as the hydrochloride and free base (amine form) was determined by direct and back potentiometric titration, respectively.
Nawzat Al-jbour, Kamal Sweidan, Adnan Badwan, Rana Obaidat, Mayyas Al- Remawi, Abdel-Motalleb Jaber   +5 more
core   +1 more source

MDL‐800‐induced SIRT6 activation decreases age‐associated osteoarthritis in mice

Arthritis &Rheumatology, Accepted Article.
Objective SIRT6 is a nuclear‐localized histone deacetylase that regulates multiple pathways associated with aging. This study aimed to determine whether systemic administration of a small molecule activator of SIRT6, MDL‐800, decreases the severity of age‐associated osteoarthritis (OA) in mice.
Matheus Moreira Perez, Pranay Ramteke, Bahiyah Watson, Owen Haslam, Eirene Choi, Susan Chubinskaya, Mandy J. Peffers, William R. Davis, Jacqueline Shine, Brian O. Diekman, Richard F. Loeser, Theresa A. Freeman, Makarand V. Risbud, John A. Collins   +13 more
wiley   +1 more source