scholarly journals Hexavalent Chromium in Tannery Solid Waste Based Poultry Feed in Bangladesh and Its Transfer to Food Chain

2013 ◽  
Vol 3 (4) ◽  
pp. 44-51 ◽  
Author(s):  
L. T. Mazumder L. T. Mazumder
Keyword(s):  
Solid Waste ◽  
Hexavalent Chromium ◽  
Food Chain ◽  
Poultry Feed ◽  
Tannery Solid Waste

scholarly journals Biosorption potential and molecular characterization of metal resistant autochthonous microbes from tannery solid waste

2021 ◽  
Author(s):  
Hajira Younas ◽  
Aisha Nazir ◽  
Zakia Latif ◽  
Janice E Thies ◽  
Muhammad Shafiq ◽  
...  
Keyword(s):  
Solid Waste ◽  
Its Region ◽  
Metal Resistance ◽  
Molecular Techniques ◽  
Bacterial Strains ◽  
Fungal Strains ◽  
Resistant Strains ◽  
Tannery Solid Waste ◽  
Clean Metal

This study encompasses isolation and screening of heavy metal-resistant fungal and bacterial strains from tannery solid waste (TSW). Twelve fungal strains and twenty-five bacterial strains were isolated from TSW. The growth of fungal strains was observed against different heavy metals ranging from 10 mg L -1 to 1050 mg L -1 and the growth of bacteria was observed in metal concentrations ranging from 10 mg L -1 to 1200 mg L -1 . Five multi-metal resistant fungal isolates belonging to the genus Trichoderma and ten bacterial isolates belonging to the genus Bacillus showed good metal resistance and biosorption potential. They were identified through molecular techniques, fungi based on ITS region ribotyping, and bacteria based on 16S rRNA ribotyping. The fungal strains were characterized as T. hamatum (TSWF-06), T. harzianum (TSWF-11), T. lixii (TSWF-02) and T. pseudokoningii (TSWF-03, TSWF-10). The bacterial strains were characterized as Bacillus xiamenensis (TSW-02), B. velezensis (TSW-05), B. piscis (TSW-06), B. safensis (TSW-10), B. subtilis (TSW-14, TSW-15, TSW-17) B. licheniformis (TSW-19), B. cereus (TSW-20) and B. thuringiensis (TSW-22). The fungal strains namely, T. pseudokoningii (TSWF-03) and T. harzianum proved to be two multi-metal resistant strains with good biosorption efficiency. Unlike fungi, bacterial strains showed metal specific resistance. The strains Bacillus xiamenensis , B. subtilis (TSW-14) and B. subtilis (TSW-15) showed good biosorption efficiency against Cr, B. safensis against Cu, B. piscis and B. subtilis (TSW-17) against Pb and B. licheniformis and B. thuringiensis against Zn. The autochthonous fungal and bacterial strains can therefore be employed to clean metal contaminated environments.

Effects of nonionic surfactant on hydrolysis and fermentation of protein rich tannery solid waste

2008 ◽  
Vol 19 (5) ◽  
pp. 739-748 ◽  
Author(s):  
A. Ganesh Kumar ◽  
R. Venkatesan ◽  
R. Kirubagaran ◽  
T. G. Prabhakar ◽  
G. Sekaran
Keyword(s):  
Nonionic Surfactant ◽  
Solid Waste ◽  
Tannery Solid Waste ◽  
Protein Rich

Cytogenetic effects of leachates from tannery solid waste on the somatic cells ofVicia faba

2004 ◽  
Vol 19 (2) ◽  
pp. 129-133 ◽  
Author(s):  
Saurabh Chandra ◽  
L. K. S. Chauhan ◽  
P. N. Pande ◽  
S. K. Gupta
Keyword(s):  
Solid Waste ◽  
Somatic Cells ◽  
Cytogenetic Effects ◽  
Ofvicia Faba ◽  
Tannery Solid Waste

Improved diagnostic and real-time pcr in rapid screening for Salmonella in the poultry food chain

2006 ◽  
Vol 54 (3) ◽  
pp. 297-312 ◽  
Author(s):  
Annamária Szmolka ◽  
Éva Kaszanyitzky ◽  
B. Nagy
Keyword(s):  
Real Time ◽  
Food Chain ◽  
Real Time Pcr ◽  
Culture Method ◽  
Rapid Screening ◽  
Poultry Feed ◽  
Broiler Chicks ◽  
Diagnostic Pcr ◽  
Enrichment Cultures ◽  
Specific Pcr

The goal of this study was to improve the diagnostic applicability of genus- and serovar- (S. Enteritidis and S. Typhimurium) specific PCR systems in screening faecal and caecal samples of poultry, poultry feed and poultrymeat for Salmonella, by keeping the opportunity to obtain Salmonella cultures from positive samples. Peptone broth pre-enrichment cultures of the samples were tested by PCR. In faecal and caecal samples from broiler chicks a strong inhibitory action was frequently observed. This could be reduced markedly by the addition of bovine serum albumin (BSA) acting as amplification facilitator. The results of testing pre-enrichment cultures from artificially contaminated faecal, poultry feed and poultrymeat samples (using S. Enteritidis, S. Typhimurium and S. Hadar as contaminants) suggest that the sensitivity of the above systems is 101-102 CFU g-1 sample. The testing of 95 caecal samples from slaughtered chicks resulted in 49% culture-positive and 76% PCR-positive samples. The suitability of a generic real-time PCR for testing faecal samples of poultry was also studied. Its detection limit for these samples was found to be lower than that of the diagnostic PCR system. Both methods reduced the time required for Salmonella detection to 24-30 h, and the advantage of the real-time PCR was its increased sensitivity. We have established a diagnostic and a real-time PCR system for rapid and reliable genus- and serovar- (S. Enteritidis and S. Typhimurium) specific detection of Salmonella for monitoring purposes in the poultry food chain. Sensitivity is equal to, or higher than, that of the standard bacterial culture method, and the method still provides the Salmonella culture if needed.

Influence of fermented tannery solid waste on morphological, biochemical, yield and nutritional responses of tomato plants

2014 ◽  
Vol 22 (6) ◽  
pp. 4327-4335 ◽  
Author(s):  
B. Ravindran ◽  
J. W. C. Wong ◽  
A. Selvam ◽  
K. Murugesan ◽  
D. Mohanapriya ◽  
...  
Keyword(s):  
Solid Waste ◽  
Tomato Plants ◽  
Tannery Solid Waste

Tannery Solid Waste to Treat Toxic Liquid Wastes: A New Holistic Paradigm

2012 ◽  
Vol 29 (6) ◽  
pp. 363-372 ◽  
Author(s):  
Nishad Fathima ◽  
Raghava Rao ◽  
Balachandran Unni Nair
Keyword(s):  
Solid Waste ◽  
Liquid Wastes ◽  
Tannery Solid Waste
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