Bactericidal Effect of Calcium Oxide (Scallop-Shell Powder) AgainstPseudomonas aeruginosaBiofilm on Quail Egg Shell, Stainless Steel, Plastic, and Rubber

Bioshell calcium oxide (BiSCaO) is a scallop-shell powder heated at a high temperature. BiSCaO is composed mainly of calcium oxide and exhibits broad microbicidal properties. The aim of this study is to evaluate the disinfection and decontamination abilities of BiSCaO colloidal dispersions with that of commercially available bioshell calcium hydroxide (BiSCa(OH)2) following the formation of flocculants/precipitates under strongly alkaline conditions (pH 11.5–12.2). Various concentrations of BiSCaO and BiSCa(OH)2 colloidal dispersions were prepared by mixing with Na-polyPO4 (PP) and Na-triPO4 (TP) as flocculating agents. The microbicidal activities, and the degree of flocculation/precipitation of trypan blue, albumin, chondroitin sulfate, heparin, non-anticoagulant heparin carrying polystyrene (NAC-HCPS), and low-molecular-weight heparin/protamine nanoparticles (LMWH/P NPs) were dependent on the pH, the average particle diameter, and the concentration of BiSCaO or BiSCa(OH)2 and of the phosphate compound. BiSCaO (average particle diameter: 6 μm) colloidal dispersions (0.2 wt.%) containing 0.15 wt.% PP or TP exhibited substantially stronger microbicidal activity and flocculation/precipitation under strongly alkaline conditions. These results suggest that BiSCaO colloidal dispersions together with phosphate compounds have practical applicability for disinfection.

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Application of calcium oxide (CaO, heated scallop-shell powder) for the reduction of Listeria monocytogenes biofilms on eggshell surfaces

Poultry Science ◽

10.3382/ps/pex324 ◽

2018 ◽

Vol 97 (5) ◽

pp. 1681-1688 ◽

Cited By ~ 1

Author(s):

S.Y. Park ◽

S.-J. Jung ◽

I. Kang ◽

S.-D. Ha

Keyword(s):

Listeria Monocytogenes ◽

Calcium Oxide ◽

Scallop Shell ◽

Shell Powder

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Extraction and removal of nickel from battery waste, using nano sized activated carbon of Egg shell powder in a column

Materials Today Proceedings ◽

10.1016/j.matpr.2020.12.393 ◽

2021 ◽

Vol 44 ◽

pp. 2296-2299

Author(s):

V. Sasikala ◽

Ch. Koteswara rao ◽

Anand kumar ◽

T. Sruthi ◽

Surya prakash ◽

...

Keyword(s):

Activated Carbon ◽

Egg Shell ◽

Shell Powder

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Fiche technique de l’impact de l’amendement du substrat en poudre de coquille d’œuf de poule sur la reproduction de Archachatina marginata (Swainson, 1821)

European Scientific Journal ESJ ◽

10.19044/esj.2018.v14n33p239 ◽

2018 ◽

Vol 14 (33) ◽

pp. 239

Author(s):

Aman Jean Baptiste ◽

Memel Jean Didier ◽

Kouassi Kouadio Daniel ◽

Otchoumou Atcho

Keyword(s):

Reproductive Performance ◽

Soil Amendment ◽

Reproductive Parameters ◽

Chicken Egg ◽

Substrate Amendment ◽

Egg Shell ◽

Shell Powder

This study consists in looking for an improvement of Archachatina margina reproductions performances by amendment of the breeding substrates. As a result, five types of substrate were prepared by soil amendment at different rates (0%, 10%, 20%, 30% et 40%) with chicken egg shell powder. On these substrates, snails were raised from spat stage until they were laid. Reproductive parameters such as: age of first laying, the number of annual laying per animal, the number of eggs per laying on the different substrates were recorded. Overall, snail laying performances improved with increasing rate of substrate amendment. However, beyond a rate of 20%, the weight of eggs laid began to decline. The chicken egg shell powder is suitable for the amendment of the breeding substrate of snails Archachatina marginata in view of an improvement in their reproductive performance. The rate of amendment recommended to this effect is 20%.

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