Optimization, Production and Characterization of Polyhydroxyalkanoate (PHA)from Indigenously Isolated Novel Bacteria (Record no. 29959)
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| 000 -LEADER | |
|---|---|
| campo de control de longitud fija | 03163nam a2200289Ia 4500 |
| 003 - IDENTIFICADOR DE NÚMERO DE CONTROL | |
| campo de control | MX-MdCICY |
| 005 - FECHA Y HORA DE LA ÚLTIMA TRANSACCIÓN | |
| campo de control | 20260521091716.0 |
| 040 ## - FUENTE DE CATALOGACIÓN | |
| Centro/agencia transcriptor | CICY |
| 090 ## - LOCALMENTE ASIGNADO TIPO-LC NÚMERO DE CLASIFICACIÓN (OCLC); NÚMERO DE CLASIFICACIÓN LOCAL (RLIN) | |
| Número de clasificación (OCLC) (R) ; Numero de clasificación, CALL (RLIN) (NR) | B-19913 |
| 008 - DATOS DE LONGITUD FIJA--INFORMACIÓN GENERAL | |
| campo de control de longitud fija | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - MENCIÓN DEL TÍTULO | |
| Título | Optimization, Production and Characterization of Polyhydroxyalkanoate (PHA)from Indigenously Isolated Novel Bacteria |
| 490 0# - MENCIÓN DE SERIE | |
| Designación de volumen o secuencia | Journal of Polymers and the Environment, 30, p.3523-3533, 2022 |
| 520 3# - RESUMEN, ETC. | |
| Sumario, etc. | Synthetic plastics have multiple applications in modern world. However, being non-degradable in nature, these have turned into environmental pollutants. Natural ecosystem and global biodiversity are facing serious challenges due to the plastic pollution. Effective degradation and replacement of synthetic plastics with natural and ecofriendly biomaterial is crucial. Polyhydroxyalkanoates (PHAs)are the microbial polyesters and have great potential as biopolymers for the development of bioplastics. PHA produced and accumulated as granules in the cytoplasm of various microbes under limited supply of nutrients can serve the purpose of bioplastic production. Biosynthesis of PHA using bacteria needs well-optimized nutrient and growth conditions for which, studies optimizing the parameters of bacterial growth using various carbon and nitrogen sources are required. Current study optimized the production of PHA by two indigenously isolated strains of Pseudomonas sp. AK-3 and AK-4. The strain AK-3 produced 1.08 g/L of PHA with a yield of 54.82 percent in the presence of 2 percent sucrose as carbon source and 1 percent of (NH4)2SO4 as nitrogen source (C/N ratio of 4:1). The yield, however, reduced to 7.73 percent when 2 percent (NH4)2SO4 was added as a nitrogen source in the production medium (C/N ratio of 4:2). Pseudomonas sp. AK-4 produced 0.92 g/L of PHA with a yield of 43.80 percent for 2 percent sucrose as carbon source. Addition of 1 percent (NH4)2SO4 had negligible effect on the yield. Considerable increase in cell dry mass was observed when high concentrations of various carbon sources were used. Biosynthesis of PHA was declined when 1 percent concentrations of nitrogen sources such as ammonium chloride (NH4Cl), ammonium nitrate (NH4NO3)and ammonium sulphate (NH4)2SO4 were used. The optimum temperature and pH for production of PHA were found to be 38 °C and 8.0 respectively, with an optimum incubation period of 72 h. FTIR results of the extracted polyesters showed transmittance peaks at wavenumbers of 1725 cm?1, 1375 cm?1, 1278 cm?1, 1132 cm?1, 1054 cm?1 and 977 cm?1. Based on FTIR analysis it was concluded that the polyester produced by both Pseudomonas sp. AK-3 and AK-4 was poly-3-hydroxybutyrate P(3HB). |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | BIOPOLYMERS |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | BIOPLASTICS |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | POLYESTERS |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | BIODEGRADATION |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | P(3HB) |
| 650 14 - PUNTO DE ACCESO ADICIONAL DE MATERIA--TÉRMINO DE MATERIA | |
| Término de materia o nombre geográfico como elemento de entrada | PLASTICS |
| 700 12 - ENTRADA AGREGADA--NOMBRE PERSONAL | |
| Nombre de persona | Muneer, F. |
| 700 12 - ENTRADA AGREGADA--NOMBRE PERSONAL | |
| Nombre de persona | Rasul, I. |
| 700 12 - ENTRADA AGREGADA--NOMBRE PERSONAL | |
| Nombre de persona | Qasim, M. |
| 700 12 - ENTRADA AGREGADA--NOMBRE PERSONAL | |
| Nombre de persona | Sajid, A. |
| 700 12 - ENTRADA AGREGADA--NOMBRE PERSONAL | |
| Nombre de persona | Nadeem, H. |
| 856 40 - LOCALIZACIÓN Y ACCESO ELECTRÓNICOS | |
| Identificador Uniforme de Recurso | <a href="https://drive.google.com/file/d/1PzBaNksobFrHBUbbxRl2xrtHsOv9Luh5/view?usp=drivesdk">https://drive.google.com/file/d/1PzBaNksobFrHBUbbxRl2xrtHsOv9Luh5/view?usp=drivesdk</a> |
| Nota pública | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ELEMENTOS DE ENTRADA SECUNDARIOS (KOHA) | |
| Fuente de la clasificación o esquema de estantería | |
| Tipo de ítem Koha | REF1 |
| Estatus retirado | Estado de pérdida | Fuente de la clasificación o esquema de estantería | Estado de daño | No para préstamo | Colección | Biblioteca de origen | Biblioteca actual | Ubicación en estantería | Fecha de adquisición | Total de préstamos | Signatura topográfica completa | Visto por última vez | Precio de reemplazo | Tipo de ítem Koha |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CICY | CICY | 25/06/2025 | B-19913 | 25/06/2025 | 25/06/2025 | REF1 |