Results 11 to 20 of about 68,724 (182)

A Multifunctional Polysaccharide Utilization Gene Cluster in Colwellia echini Encodes Enzymes for the Complete Degradation of κ-Carrageenan, ι-Carrageenan, and Hybrid β/κ-Carrageenan [PDF]

open access: yesmSphere, 2020
Algal cell wall polysaccharides constitute a large fraction in the biomass of marine primary producers and are thus important in nutrient transfer between trophic levels in the marine ecosystem.
Line Christiansen   +7 more
doaj   +2 more sources

Chemical and Spectral Characterization of The Ozonation Products of κ-Carrageenan

open access: yesMATEC Web of Conferences, 2018
Kappa (κ-) carrageenan oligomers are known to have several biological activities. Recent progress in the development of modified κ-carrageenan has resulted low molecular of κ-carrageenan. Ozone is a powerful oxidant and considered for depolymerization of
Prasetyaningrum Aji   +4 more
doaj   +3 more sources

Synthesis and characterization of modified κ-carrageenan for enhanced proton conductivity as polymer electrolyte membrane. [PDF]

open access: yesPLoS ONE, 2017
Polymer electrolyte membranes based on the natural polymer κ-carrageenan were modified and characterized for application in electrochemical devices. In general, pure κ-carrageenan membranes show a low ionic conductivity.
Joy Wei Yi Liew   +4 more
doaj   +2 more sources

Specific Inhibitory Effect of κ-Carrageenan Polysaccharide on Swine Pandemic 2009 H1N1 Influenza Virus.

open access: yesPLoS ONE, 2015
The 2009 influenza A H1N1 pandemic placed unprecedented demands on antiviral drug resources and the vaccine industry. Carrageenan, an extractive of red algae, has been proven to inhibit infection and multiplication of various enveloped viruses.
Qiang Shao   +4 more
doaj   +2 more sources

Kinetics of Oxidative Depolymerization of κ-carrageenan by Ozone

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2017
Depolymerization kinetics of κ-carrageenan by ozone treatment has been studied at various pHs and times. The purified κ-carrageenan with the initial molecular weight of 271 kDa was dispersed in water to form (1 % w/v) solution.
Aji Prasetyaningrum   +2 more
doaj   +3 more sources

Kinetics and Thermodynamics of Ultrasound-Assisted Depolymerization of κ-Carrageenan [PDF]

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2016
The ultrasound-assisted depolymerization of κ-carrageenan has been studied at various temperatures and times. The κ-carrageenan with initial molecular weight of 545 kDa was dispersed in water to form a 5 g/L solution, which was then depolymerized in an ...
Ratnawati Ratnawati   +2 more
doaj   +2 more sources

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

open access: yesBioResources, 2014
Through alkali treatment, bleaching, and sulfuric acid hydrolysis, cellulose nanocrystals (CNCs) were prepared from kenaf fibers and were used as reinforcement materials in biocomposites based on κ-carrageenan.
Siti Zarina, Ishak Ahmad
doaj   +2 more sources

EFFECT OF OZONATION PROCESS ON PHYSICOCHEMICAL AND RHEOLOGICAL PROPERTIES OF κ-CARRAGEENAN

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2017
κ-Carrageenan is a sulfated galactan extracted from red algae (Rhodophyceae) which has many functions. However, nonfood applications of κ-carrageenan have been limited by its superior gelling and viscosity properties.
AJI PRASETYANINGRUM   +2 more
doaj   +1 more source

Fabrication and characterization of Lawsone-loaded κ-carrageenan-based scaffolds with antibacterial properties

open access: yesResults in Chemistry
Carrageenan is currently being explored for synthesizing scaffolds due to its excellent biological properties. This research focuses on the fabrication and characterization of κ-carrageenan/chitosan/gelatin and κ-carrageenan/chitosan scaffolds, examining
Alireza Ghasempour   +4 more
doaj   +2 more sources

Survival of κ-carrageenan-encapsulated and unencapsulated Pseudomonas aeruginosa UG2Lr cells in forest soil monitored by polymerase chain reaction and spread plating [PDF]

open access: yesFEMS Microbiology Ecology, 1995
A method was developed for direct extraction, purification and amplification of DNA from forest soil. Eighty-two % of the DNA in Pseudomonas aeruginosa UG2Lr introduced into soil was recovered. The detection limit for the strain was approximately 800 cfu g−1 of dry soil based on the polymerase chain reaction (PCR).
Kamtin Leung   +4 more
openaire   +1 more source

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