scholarly journals Sodium alginate oligosaccharides from brown algae inhibit Salmonella Enteritidis colonization in broiler chickens

2011 ◽  
Vol 90 (7) ◽  
pp. 1441-1448 ◽  
Author(s):  
G.L. Yan ◽  
Y.M. Guo ◽  
J.M. Yuan ◽  
D. Liu ◽  
B.K. Zhang
Keyword(s):  
Sodium Alginate ◽  
Brown Algae ◽  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Alginate Oligosaccharides

Preliminary Study of Alginates Extracted from Brown Algae (Sargassum sp.) Available in Madura Island as Composite Based Hydrogel Materials

2019 ◽  
Vol 964 ◽  
pp. 240-245 ◽  
Author(s):  
Amaliya Rasyida ◽  
Thalyta Rizkha Pradipta ◽  
Sigit Tri Wicaksono ◽  
Vania Mitha Pratiwi ◽  
Yeny Widya Rakhmawati
Keyword(s):  
Sodium Alginate ◽  
Brown Algae ◽  
Extraction Process ◽  
Composition Analysis ◽  
3D Printer ◽  
X Ray Diffraction ◽  
X Ray ◽  
3D Printed ◽  
Preliminary Study

Utilization of brown algae especially in Madura, where it’s close to Surabaya, only limited for food. This become a reference for developing and increasing the potential of this algae by extracting one of the ingredients, namely alginate. This paper deals with the characterization of sodium alginate extracted from sargassum sp. using modified-purified calcium routes. The extracted sodium alginate will be further used as composite hydrogel materials and compared with commercial sodium alginate. Hereafter, the synthesized composite is expected to be bio-ink for 3d printer. Chemical composition analysis were analyzed using X-Ray Fluorosense (XRF) followed by Fourier-transform infrared spectroscopy (FTIR) analysis to identify the functional group of composite and X-Ray Diffraction (XRD). Furthermore, viscosity bath is performed to compare the viscosity of extracted and commercial one. The result shows that modified-purified calcium routes in the extraction process of sodium alginate is desirable for improving their properties. Interestingly enough, with the goal of using it as bio-ink in 3d printed fabrication, the synthesized composite shows viscosity, 300 cSt, which meets the criteria for bio-ink in 3d printer.

Prevention of colonization by Salmonella enteritidis PT4 in broiler chickens

1992 ◽  
Vol 15 (3-4) ◽  
pp. 313-317 ◽  
Author(s):  
N.M. Bolder ◽  
L.A.J.T. van Lith ◽  
F.F. Putirulan ◽  
W.F. Jacobs-Reitsma ◽  
R.W.A.W. Mulder
Keyword(s):  
Broiler Chickens ◽  
Salmonella Enteritidis

Incidence of Salmonella, Campylobacter jejuni, Campylobacter coli, and Listeria monocytogenes in Poultry Carcasses and Different Types of Poultry Products for Sale on the Belgian Retail Market

1999 ◽  
Vol 62 (7) ◽  
pp. 735-740 ◽  
Author(s):  
M. UYTTENDAELE ◽  
P. DE TROY ◽  
J. DEBEVERE
Keyword(s):  
Listeria Monocytogenes ◽  
Campylobacter Jejuni ◽  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Contamination Level ◽  
Contamination Rate ◽  
Campylobacter Coli ◽  
Retail Market ◽  
Salmonella Spp ◽  
Poultry Products

From January 1997 to May 1998, 772 samples of poultry carcasses and poultry products for sale on the retail market in Belgium were analyzed for the presence of Salmonella spp., Salmonella Enteritidis, Campylobacter jejuni, C. coli, and Listeria monocytogenes per 100 cm2 or 25 g. Poultry samples were contaminated with Salmonella (36.5%), C. jejuni and C. coli (28.5%), and L. monocytogenes (38.2%). In about 12.3% of the poultry samples, the L. monocytogenes contamination level exceeded 1 CFU per g or cm2. Significant differences in pathogen contamination rates of poultry products were noticed between the poultry products originating from Belgian, French, and U.K. abattoirs. Poultry products derived from broiler chickens running free in pine woods until slaughtering age (12 to 13 weeks) had a significantly (P < 0.05) lower contamination rate of Salmonella than poultry products from enclosed broilers slaughtered at the age of 6 to 8 weeks. A significantly (P < 0.05) lower pathogen contamination rate was noted for Salmonella, C. jejuni, and C. coli for poultry cuts without skin compared to poultry cuts with skin on. An increase in pathogen contamination rate was noticed during cutting and further processing. To diminish C. jejuni, C. coli, Salmonella, and L. monocytogenes contamination rates, hygienic rules of slaughter and meat processing must be rigorously observed. At the moment, zero tolerance for these pathogens is not feasible, and there is a need to establish criteria allowing these pathogens to be present at reasonable levels in the examined poultry samples.

scholarly journals Structure Characteristics, Biochemical Properties, and Pharmaceutical Applications of Alginate Lyases

Marine Drugs ◽  
2021 ◽  
Vol 19 (11) ◽  
pp. 628
Author(s):  
Shu-Kun Gao ◽  
Rui Yin ◽  
Xiao-Chen Wang ◽  
Hui-Ning Jiang ◽  
Xiao-Xiao Liu ◽  
...  
Keyword(s):  
Brown Algae ◽  
Catalytic Mechanism ◽  
Degradation Products ◽  
Structural Characteristics ◽  
Catalytic Efficiency ◽  
Alginate Lyase ◽  
Biochemical Properties ◽  
Structure And Property ◽  
Alginate Oligosaccharides ◽  
Alginate Lyases

Alginate, the most abundant polysaccharides of brown algae, consists of various proportions of uronic acid epimers α-L-guluronic acid (G) and β-D-mannuronic acid (M). Alginate oligosaccharides (AOs), the degradation products of alginates, exhibit excellent bioactivities and a great potential for broad applications in pharmaceutical fields. Alginate lyases can degrade alginate to functional AOs with unsaturated bonds or monosaccharides, which can facilitate the biorefinery of brown algae. On account of the increasing applications of AOs and biorefinery of brown algae, there is a scientific need to explore the important aspects of alginate lyase, such as catalytic mechanism, structure, and property. This review covers fundamental aspects and recent developments in basic information, structural characteristics, the structure–substrate specificity or catalytic efficiency relationship, property, molecular modification, and applications. To meet the needs of biorefinery systems of a broad array of biochemical products, alginate lyases with special properties, such as salt-activated, wide pH adaptation range, and cold adaptation are outlined. Withal, various challenges in alginate lyase research are traced out, and future directions, specifically on the molecular biology part of alginate lyases, are delineated to further widen the horizon of these exceptional alginate lyases.

scholarly journals 104. Overcrowding stress decreases macrophage activity and increases Salmonella Enteritidis invasion in broiler chickens

2014 ◽  
Vol 40 ◽  
pp. e30-e31
Author(s):  
J. Palermo-Neto ◽  
W.M. Quinteiro-Filho ◽  
A. Ribeiro ◽  
V. Ferraz-de-Paula ◽  
E. Baskeville ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Macrophage Activity

Evaluation of Spray Application of a Lactobacillus-based Probiotic on Salmonella enteritidis Colonization in Broiler Chickens

2007 ◽  
Vol 6 (7) ◽  
pp. 493-496 ◽  
Author(s):  
A.D. Wolfenden ◽  
C.M. Pixley ◽  
J.P. Higgins ◽  
S.E. Higgins ◽  
B.M. Hargis ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Spray Application
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