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Dynamics of PHA-Accumulating Bacterial Communities Fed with Lipid-Rich Liquid Effluents from Fish-Canning Industries. Polymers (Basel) 2022; 14:polym14071396. [PMID: 35406269 PMCID: PMC9003127 DOI: 10.3390/polym14071396] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 02/04/2023] Open
Abstract
The biosynthesis of polyhydroxyalkanoates (PHAs) from industrial wastes by mixed microbial cultures (MMCs) enriched in PHA-accumulating bacteria is a promising technology to replace petroleum-based plastics. However, the populations’ dynamics in the PHA-accumulating MMCs are not well known. Therefore, the main objective of this study was to address the shifts in the size and structure of the bacterial communities in two lab-scale sequencing batch reactors (SBRs) fed with fish-canning effluents and operated under non-saline (SBR-N, 0.5 g NaCl/L) or saline (SBR-S, 10 g NaCl/L) conditions, by using a combination of quantitative PCR and Illumina sequencing of bacterial 16S rRNA genes. A double growth limitation (DGL) strategy, in which nitrogen availability was limited and uncoupled to carbon addition, strongly modulated the relative abundances of the PHA-accumulating bacteria, leading to an increase in the accumulation of PHAs, independently of the saline conditions (average 9.04 wt% and 11.69 wt%, maximum yields 22.03 wt% and 26.33% SBR-N and SBR-S, respectively). On the other hand, no correlations were found among the PHAs accumulation yields and the absolute abundances of total Bacteria, which decreased through time in the SBR-N and did not present statistical differences in the SBR-S. Acinetobacter, Calothrix, Dyella, Flavobacterium, Novosphingobium, Qipengyuania, and Tsukamurella were key PHA-accumulating genera in both SBRs under the DGL strategy, which was revealed as a successful tool to obtain a PHA-enriched MMC using fish-canning effluents.
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Polyhydroxybutyrate-co-hydroxyvalerate copolymer modified graphite oxide based 3D scaffold for tissue engineering application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:534-546. [PMID: 30423738 DOI: 10.1016/j.msec.2018.10.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 09/10/2018] [Accepted: 10/02/2018] [Indexed: 11/22/2022]
Abstract
In this study, we have fabricated the PHBV functionalized graphite oxide using freeze drying technique, followed by 'in situ' pay loading of Fe3O4 nanoparticles onto the hydrophobic plate of the composite basal plane; thereby, mechanically and thermally stable, bio-imaging Fe3O4/GO-g-PHBV composites have been developed. The synthesis of Fe3O4/GO-g-PHBV composite was confirmed by field emission SEM and TEM analyses, X-ray diffraction and Fourier transform infrared spectroscopy. The wrapping of PHBV copolymer into the graphene layers was investigated by atomic force microscopy and Raman spectral analyses which provided the shifting of the 2D band with low signal intensity in the range of 2600-3000 cm-1. The bactericidal activities of the Fe3O4/GO-g-PHBV composite films were found to exhibit more efficiency against Gram-negative bacteria strains compared to Gram-positive strains. In vibrating sample magnetometer (VSM) analysis, the zero value of coercivity revealed the super-paramagnetic nature of the Fe3O4/GO-g-PHBV composites. The Phantom agar magnetic resonance imaging analysis revealed the efficiency of Fe3O4 nanoparticles as a negative contrast (T2 contrast) along with higher relaxivity value. The significant fibroblast cell (NIH 3T3) adhesion and proliferation (85%) on the Fe3O4/GO-g-PHBV composite surface indicated the physiological and biocompatible stability of that composite along with the presence of large π conjugated aromatic domain.
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Xu H, Huang W, Hou Q, Kwok LY, Sun Z, Ma H, Zhao F, Lee YK, Zhang H. The effects of probiotics administration on the milk production, milk components and fecal bacteria microbiota of dairy cows. Sci Bull (Beijing) 2017; 62:767-774. [PMID: 36659272 DOI: 10.1016/j.scib.2017.04.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 01/21/2023]
Abstract
Probiotics administration can improve host health. This study aims to determine the effects of probiotics (Lactobacillus casei Zhang and Lactobacillus plantarum P-8) administration on milk production, milk functional components, milk composition, and fecal microbiota of dairy cows. Variations in the fecal bacteria microbiota between treatments were assessed based on 16S rRNA profiles determined by PacBio single molecule real-time sequencing technology. The probiotics supplementation significantly increased the milk production and the contents of milk immunoglobulin G (IgG), lactoferrin (LTF), lysozyme (LYS) and lactoperoxidase (LP), while the somatic cell counts (SCC) significantly decreased (P<0.01). However, no significant difference was found in the milk fat, protein and lactose contents (P>0.05). Although the probiotics supplementation did not change the fecal bacteria richness and diversity, significantly more rumen fermentative bacteria (Bacteroides, Roseburia, Ruminococcus, Clostridium, Coprococcus and Dorea) and beneficial bacteria (Faecalibacterium prausnitzii) were found in the probiotics treatment group. Meanwhile, some opportunistic pathogens e.g. Bacillus cereus, Cronobacter sakazakii and Alkaliphilus oremlandii, were suppressed. Additionally, we found some correlations between the milk production, milk components and fecal bacteria. To sum up, our study demonstrated the beneficial effects of probiotics application in improving the quality and quantity of cow milk production.
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Affiliation(s)
- Haiyan Xu
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Weiqiang Huang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Qiangchuan Hou
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Lai-Yu Kwok
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Zhihong Sun
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Huimin Ma
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Feiyan Zhao
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China
| | - Yuan-Kun Lee
- Department of Microbiology, National University of Singapore, Singapore
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia 010018, China.
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Pramanik N, Dutta K, Basu RK, Kundu PP. Aromatic π-Conjugated Curcumin on Surface Modified Polyaniline/Polyhydroxyalkanoate Based 3D Porous Scaffolds for Tissue Engineering Applications. ACS Biomater Sci Eng 2016; 2:2365-2377. [DOI: 10.1021/acsbiomaterials.6b00595] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nilkamal Pramanik
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Kingshuk Dutta
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Ranjan K. Basu
- Department
of Chemical Engineering, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
| | - Patit P. Kundu
- Advanced
Polymer Laboratory, Department of Polymer Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata-700 009, India
- Department
of Chemical Engineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, Uttarakhand-247667, India
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Bonartsev AP, Zharkova II, Yakovlev SG, Myshkina VL, Mahina TK, Voinova VV, Zernov AL, Zhuikov VA, Akoulina EA, Ivanova EV, Kuznetsova ES, Shaitan KV, Bonartseva GA. Biosynthesis of poly(3-hydroxybutyrate) copolymers by Azotobacter chroococcum 7B: A precursor feeding strategy. Prep Biochem Biotechnol 2016; 47:173-184. [PMID: 27215309 DOI: 10.1080/10826068.2016.1188317] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A precursor feeding strategy for effective biopolymer producer strain Azotobacter chroococcum 7B was used to synthesize various poly(3-hydroxybutyrate) (PHB) copolymers. We performed experiments on biosynthesis of PHB copolymers by A. chroococcum 7B using various precursors: sucrose as the primary carbon source, various carboxylic acids and ethylene glycol (EG) derivatives [diethylene glycol (DEG), triethylene glycol (TEG), poly(ethylene glycol) (PEG) 300, PEG 400, PEG 1000] as additional carbon sources. We analyzed strain growth parameters including biomass and polymer yields as well as molecular weight and monomer composition of produced copolymers. We demonstrated that A. chroococcum 7B was able to synthesize copolymers using carboxylic acids with the length less than linear 6C, including poly(3-hydroxybutyrate-co-3-hydroxy-4-methylvalerate) (PHB-4MHV) using Y-shaped 6C 3-methylvaleric acid as precursor as well as EG-containing copolymers: PHB-DEG, PHB-TEG, PHB-PEG, and PHB-HV-PEG copolymers using short-chain PEGs (with n ≤ 9) as precursors. It was shown that use of the additional carbon sources caused inhibition of cell growth, decrease in polymer yields, fall in polymer molecular weight, decrease in 3-hydroxyvalerate content in produced PHB-HV-PEG copolymer, and change in bacterial cells morphology that were depended on the nature of the precursors (carboxylic acids or EG derivatives) and the timing of its addition to the growth medium.
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Affiliation(s)
- A P Bonartsev
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia.,b Faculty of Biology , Moscow State University , Moscow , Russia.,c Department of Maxillofacial and Oral Surgery , Nizhny Novgorod State Medical Academy , Nizhny Novgorod , Russia
| | - I I Zharkova
- b Faculty of Biology , Moscow State University , Moscow , Russia
| | - S G Yakovlev
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia.,c Department of Maxillofacial and Oral Surgery , Nizhny Novgorod State Medical Academy , Nizhny Novgorod , Russia
| | - V L Myshkina
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia
| | - T K Mahina
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia
| | - V V Voinova
- b Faculty of Biology , Moscow State University , Moscow , Russia.,c Department of Maxillofacial and Oral Surgery , Nizhny Novgorod State Medical Academy , Nizhny Novgorod , Russia
| | - A L Zernov
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia.,c Department of Maxillofacial and Oral Surgery , Nizhny Novgorod State Medical Academy , Nizhny Novgorod , Russia
| | - V A Zhuikov
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia.,c Department of Maxillofacial and Oral Surgery , Nizhny Novgorod State Medical Academy , Nizhny Novgorod , Russia
| | - E A Akoulina
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia
| | - E V Ivanova
- b Faculty of Biology , Moscow State University , Moscow , Russia
| | - E S Kuznetsova
- b Faculty of Biology , Moscow State University , Moscow , Russia
| | - K V Shaitan
- b Faculty of Biology , Moscow State University , Moscow , Russia
| | - G A Bonartseva
- a A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences , Moscow , Russia
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Pramanik N, De J, Basu RK, Rath T, Kundu PP. Fabrication of magnetite nanoparticle doped reduced graphene oxide grafted polyhydroxyalkanoate nanocomposites for tissue engineering application. RSC Adv 2016. [DOI: 10.1039/c6ra03233h] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In tissue engineering, the magnetic nanocomposites are more attractive due to some superior properties that promote in the monitoring of cell proliferation, differentiation and activation of cell construction in tissue regeneration phase.
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Affiliation(s)
- Nilkamal Pramanik
- Department of Polymer Science & Technology
- University of Calcutta
- India
| | - Jibankrishna De
- Department of Radiodiagnosis
- Nil Ratan Sirkar Hospital and Medical College
- India
| | | | - Tanmoy Rath
- Department of Polymer Science & Technology
- University of Calcutta
- India
- Central Institute of Plastics Engineering and Technology (CIPET)
- Bhubaneswar-751024
| | - Patit Paban Kundu
- Department of Polymer Science & Technology
- University of Calcutta
- India
- Department of Chemical Engineering
- Indian Institute of Technology (IIT) Roorkee
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Pramanik N, Mitra T, Khamrai M, Bhattacharyya A, Mukhopadhyay P, Gnanamani A, Basu RK, Kundu PP. Characterization and evaluation of curcumin loaded guar gum/polyhydroxyalkanoates blend films for wound healing applications. RSC Adv 2015. [DOI: 10.1039/c5ra10114j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of the blockage of UV rays and controlled release of curcumin on a wound.
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Affiliation(s)
- Nilkamal Pramanik
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Tapas Mitra
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Moumita Khamrai
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Aditi Bhattacharyya
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Piyasi Mukhopadhyay
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
| | - A. Gnanamani
- Central Leather Research Institute
- Department of Biological Science (CLRI)
- Chennai
- India
| | - Ranjan Kumar Basu
- Department of Chemical Engineering
- University of Calcutta
- Kolkata-700009
- India
| | - Patit Paban Kundu
- Advanced Polymer Laboratory
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata-700009
- India
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Pramanik N, Bhattacharyya A, Kundu PP. Spectroscopic analysis and catalytic application of biopolymer capped silver nanoparticle, an effective antimicrobial agent. J Appl Polym Sci 2014. [DOI: 10.1002/app.41495] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Nilkamal Pramanik
- Advanced Polymer Laboratory; Department of Polymer Science and Technology; University of Calcutta; Kolkata West Bengal 700009 India
| | - Aditi Bhattacharyya
- Advanced Polymer Laboratory; Department of Polymer Science and Technology; University of Calcutta; Kolkata West Bengal 700009 India
| | - Patit Paban Kundu
- Advanced Polymer Laboratory; Department of Polymer Science and Technology; University of Calcutta; Kolkata West Bengal 700009 India
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