scholarly journals Synthesis and antibacterial activity of chitosan membrane from shrimp shell waste

2021 ◽  
Vol 926 (1) ◽  
pp. 012016
Author(s):  
H Aldila ◽  
M K Swandi ◽  
D Y Dalimunthe
Keyword(s):  
Antibacterial Activity ◽  
Test Results ◽  
Simple Method ◽  
Chitosan Membrane ◽  
Deacetylation Degree ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste ◽  
The Fourier Transform ◽  
Chitosan Deacetylation

Abstract Synthesis and antibacterial activity of chitosan membrane was investigated. Chitosan membrane have been successfully by simple method from chitosan extracted from shrimp shell waste. Extraction of chitosan was carried out in four steps: demineralization, deproteinization, decolorization and deacetylation of chitin. The effect of deacetylation temperature on deacetylation process was studied. The results shown that the increase of deacetylation temperature from 30°C to 90°C causes the increase of chitosan deacetylation degree (DD). The increase of deacetylation temperature cause the increment of OH- attack to the amino group thus realizing the effective deacetylation of chitin. The highest chitosan DD was up to 77.99% is achieved under the deacetylation temperature from 90°C and the occurrence of deacetylation structurally demonstrated by the Fourier transform infrared (FTIR) and the XRD characterization. The antimicrobial test results used S. epidermidis and P. acne of chitosan membrane at various deacetylation temperature conditions indicated that no bacterial activity for all variants.

Antibacterial activity of chitin, chitosan and its oligomers prepared from shrimp shell waste

2012 ◽  
Vol 29 (1) ◽  
pp. 48-56 ◽  
Author(s):  
M.S. Benhabiles ◽  
R. Salah ◽  
H. Lounici ◽  
N. Drouiche ◽  
M.F.A. Goosen ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste

scholarly journals The Production of Chitosan from Shrimp Shell Waste and Its Formulation in Patch DosageForm Combined with Aloe vera Extract as Antiinfection Agent

2017 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Haeriah Haeriah ◽  
Muhammad Rahmatullah ◽  
Andi Indardaya ◽  
Emilia Utomo ◽  
Novianti Novianti ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Aloe Vera ◽  
Base Material ◽  
Inhibition Zone ◽  
Wound Dressings ◽  
Aloe Vera Gel ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Percentage Yield ◽  
Shrimp Shell Waste

Chitosan can be obtained from chitin isolated from shrimp waste through the process of deacetylation of chitin. Chitosan can be used as a patch base material because of its biocompatibility and biodegradability, and has antibacterial activity. The combination of Chitosan and Aloe vera extracts may be useful in patch dosage forms as wound dressings that have antiinfective activity. The research methods was laboratory experimental which consists of : chitosan was obtained from shell waste sequentially by deproteinisation, demineralisation, and deacetylation processes, and analyzed its characteristic, respectivel; Aloe vera gel was extraction by maceration methods using ethanol as solvent; patches were formulated using 2 % chitosan in 1.5 % glacial acetic acid,  1.6 %  Aloe vera extracts and 10 % glycerin and evaluated its physical propoperties,  skin iritation test, and antibacterial test against S.aureus. The results showed that percentage yield of chitosan was 32.67%, with characteristics; Its viscosity 93.33 cps, pH 4, 30 % deacetylation degree.  Percentage yield of Aloe vera  extract was 22.73%, containing acemannan, and had antibacterial activity against S.aureus.  The result of patch evaluation showed that the thickness of patch was 0.45 mm, 114 times folding endurance, moisture uptake of 45.03%, moisture content of 23.64%, safe to use, and  diameter of inhibition zone was 6.39 mm against S.aureus. So, combination of Aloe vera and Chitosan from shrimp shell as patch may use as antiinfection wound healing.  Keywords : Aloe vera L.; chitosan; wound dressing; patch; shrimp shell waste

scholarly journals Studies on heavy metal removal efficiency and antibacterial activity of chitosan prepared from shrimp shell waste

3 Biotech ◽  
2013 ◽  
Vol 4 (2) ◽  
pp. 167-175 ◽  
Author(s):  
V. Mohanasrinivasan ◽  
Mudit Mishra ◽  
Jeny Singh Paliwal ◽  
Suneet Kr. Singh ◽  
E. Selvarajan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Antibacterial Activity ◽  
Removal Efficiency ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste

scholarly journals A Hybrid Methodology to Minimize Freshwater Consumption during Shrimp Shell Waste Valorization Combining Multi-Contaminant Pinch Analysis and Superstructure Optimization

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1887
Author(s):  
Viviana Quintero ◽  
Arturo Gonzalez-Quiroga ◽  
Angel Darío Gonzalez-Delgado
Keyword(s):  
Process Integration ◽  
Preliminary Design ◽  
Water Network ◽  
Hybrid Strategy ◽  
Shrimp Shell ◽  
Optimal Value ◽  
Shell Waste ◽  
Programming Techniques ◽  
Shrimp Shell Waste ◽  
Freshwater Consumption

The conservation and proper management of natural resources constitute one of the main objectives of the 2030 Agenda for Sustainable Development designed by the Member States of the United Nations. In this work, a hybrid strategy based on process integration is proposed to minimize freshwater consumption while reusing wastewater. As a novelty, the strategy included a heuristic approach for identifying the minimum consumption of freshwater with a preliminary design of the water network, considering the concept of reuse and multiple pollutants. Then, mathematical programming techniques were applied to evaluate the possibilities of regeneration of the source streams through the inclusion of intercept units and establish the optimal design of the network. This strategy was used in the shrimp shell waste process to obtain chitosan, where a minimum freshwater consumption of 277 t/h was identified, with a reuse strategy and an optimal value of US $5.5 million for the design of the water network.

Optimization of Harvesting of Microalgal Thalassiosira pseudonana Biomass Using Chitosan Prepared from Shrimp Shell Waste

2016 ◽  
Vol 10 (5) ◽  
pp. 162-174 ◽  
Author(s):  
Trang Si Trung ◽  
Nguyen Thi Khanh Huye ◽  
Nguyen Cong Minh ◽  
Tran Thi Le Trang ◽  
Nguyen The Han
Keyword(s):  
Thalassiosira Pseudonana ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste

scholarly journals Upcycling chitin-containing waste into organonitrogen chemicals via an integrated process

2020 ◽  
Vol 117 (14) ◽  
pp. 7719-7728 ◽  
Author(s):  
Xiaoqiang Ma ◽  
Gökalp Gözaydın ◽  
Huiying Yang ◽  
Wenbo Ning ◽  
Xi Han ◽  
...  
Keyword(s):  
Wide Spectrum ◽  
Value Added ◽  
Direct Conversion ◽  
Water Soluble ◽  
Integrated Biorefinery ◽  
E Coli ◽  
Shrimp Shell ◽  
Shell Waste ◽  
Shrimp Shell Waste ◽  
Value Added Products

Chitin is the most abundant renewable nitrogenous material on earth and is accessible to humans in the form of crustacean shell waste. Such waste has been severely underutilized, resulting in both resource wastage and disposal issues. Upcycling chitin-containing waste into value-added products is an attractive solution. However, the direct conversion of crustacean shell waste-derived chitin into a wide spectrum of nitrogen-containing chemicals (NCCs) is challenging via conventional catalytic processes. To address this challenge, in this study, we developed an integrated biorefinery process to upgrade shell waste-derived chitin into two aromatic NCCs that currently cannot be synthesized from chitin via any chemical process (tyrosine andl-DOPA). The process involves a pretreatment of chitin-containing shell waste and an enzymatic/fermentative bioprocess using metabolically engineeredEscherichia coli. The pretreatment step achieved an almost 100% recovery and partial depolymerization of chitin from shrimp shell waste (SSW), thereby offering water-soluble chitin hydrolysates for the downstream microbial process under mild conditions. The engineeredE. colistrains produced 0.91 g/L tyrosine or 0.41 g/Ll-DOPA from 22.5 g/L unpurified SSW-derived chitin hydrolysates, demonstrating the feasibility of upcycling renewable chitin-containing waste into value-added NCCs via this integrated biorefinery, which bypassed the Haber–Bosch process in providing a nitrogen source.

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