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Extrusion-based 3D printing of food biopolymers: A highlight on the important rheological parameters to reach printability. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2022.111371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Preparation of Pangasius hypophthalmus protein-stabilized pickering emulsions and 3D printing application. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2022.111333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Genomic Analysis of Surfactant-Producing Bacillus vallismortis TIM68: First Glimpse at Species Pangenome and Prediction of New Plipastatin-Like Lipopeptide. Appl Biochem Biotechnol 2023; 195:753-771. [PMID: 36166154 DOI: 10.1007/s12010-022-04154-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2022] [Indexed: 01/24/2023]
Abstract
Surfactants are applied in several industrial processes when the modification of interface activity and the stability of colloidal systems are required. Lipopeptides are a class of microbial biosurfactants produced by species of the Bacillus genus. The present study aimed at assembling and analyzing the genome of a new Bacillus vallismortis strain, TIM68, that was shown to produce surfactant lipopeptides. The draft genome was also screened for common virulence factors and antibiotics resistance genes to investigate the strain biosafety. Comparative genomics analyses, i.e., synteny, average nucleotide identity (ANI), and pangenome, were also carried out using strain TIM68 and publicly available B. vallismortis complete and partial genomes. Three peptide synthetase operons were found in TIM68 genome, and they were surfactin A, mojavensin, and a novel plipastatin-like lipopeptide named vallisin. No virulence factors that render pathogenicity to the strain have been identified, but a region of prophage, that may contain unknown pathogenic factors, has been predicted. The pangenome of the species was characterized as closed, with 57% of genes integrating the core genome. The results obtained here on the genetic potential of TIM68 strain should contribute to its exploration in biotechnological applications.
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Kamlow MA, Holt T, Spyropoulos F, Mills T. Release and co-release of model hydrophobic and hydrophilic actives from 3D printed kappa-carrageenan emulsion gels. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rawooth M, Habibullah SK, Qureshi D, Bharti D, Pal A, Mohanty B, Jarzębski M, Smułek W, Pal K. Effect of Tamarind Gum on the Properties of Phase-Separated Poly(vinyl alcohol) Films. Polymers (Basel) 2022; 14:polym14142793. [PMID: 35890569 PMCID: PMC9318724 DOI: 10.3390/polym14142793] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022] Open
Abstract
The current study aims to evaluate the effect of tamarind gum (TG) on the optical, mechanical, and drug release potential of poly(vinyl alcohol) (PVA)-based films. This involves preparing PVA-TG composite films with different concentrations of TG through a simple solvent casting method. The addition of TG has enhanced the phase separation and aggregation of PVA within the films, and it becomes greater with the increase in TG concentration. Brightfield and polarized light micrographs have revealed that aggregation is favored by forming crystalline domains at the PVA-TG interface. The interconnected network of PVA-TG aggregates influenced the swelling and drying properties of the films. Using Peleg’s analysis, the mechanical behavior of films was determined by their stress relaxation profiles. The addition of TG has made no significant changes to the firmness and viscoelastic properties of films. However, long-durational relaxation times indicated that the interconnected network might break down in films with higher TG concentration, suggesting their brittleness. The controlled release of ciprofloxacin in HCl solution (0.5% (w/v)) appears to decrease with the increase in TG concentration. In fact, TG has inversely affected the impedance and altered the ionic conductivity within the films. This seems to have directly influenced the drug release from the films as the mechanism was found to be non-Fickian diffusion (based on Korsmeyer–Peepas and Peppas–Sahlin kinetic models). The antimicrobial study using Escherichia coli was carried out to evaluate the activity of the drug-loaded films. The study proves that TG can modulate the properties of PVA films and has the potential to fine-tune the controlled release of drugs from composite films.
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Affiliation(s)
- Madhusmita Rawooth
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - SK Habibullah
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
| | - Dilshad Qureshi
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - Deepti Bharti
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
| | - Ankit Pal
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
| | - Biswaranjan Mohanty
- Department of Pharmaceutics, Institute of Pharmacy and Technology, Salipur, Cuttack 754202, Odisha, India; (S.H.); (A.P.)
- Correspondence: (B.M.); (M.J.); (K.P.)
| | - Maciej Jarzębski
- Department of Physics and Biophysics, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-637 Poznan, Poland
- Correspondence: (B.M.); (M.J.); (K.P.)
| | - Wojciech Smułek
- Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, 60-695 Poznan, Poland;
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, Odisha, India; (M.R.); (D.Q.); (D.B.)
- Correspondence: (B.M.); (M.J.); (K.P.)
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Ma Y, Wang Y, Jiang S, Zeng M. Effect of gelatin on gelation properties of oyster (Crassostrea gigas) protein. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dual stimuli-sensitive carrageenan-based formulation for additive manufacturing. Int J Biol Macromol 2021; 189:370-379. [PMID: 34450141 DOI: 10.1016/j.ijbiomac.2021.08.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/07/2021] [Accepted: 08/16/2021] [Indexed: 11/22/2022]
Abstract
The design and development of controlled release systems of molecules of interest (nutrients, flavors, and drugs) have attracted significant attention over several years. Herein, we report a formulation of dual temperature and electro responsive κ- and ι-carrageenan based hydrogel for efficient food material and drug delivery. The microstructure and the thermal behavior of the hydrogel were characterized. The in-vitro drug release from the hydrogel was also studied. Using this carrageenan-based formulation and folic acid as the drug model, a high drug loading, and a sustained release because of either electric field or temperature were observed. In principle, the proposed formulation does not rely on 3D printing to perform its function; however, it adds to the feedstocks for 3D printing in the food and pharmaceutical industries. For the future, this could allow potentially more complex smart structures to be created from this material, further tuning release behavior.
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