scholarly journals Caracterizações físico-químicas das etapas de obtenção da quitosana a partir de cascas de camarão / Physicochemical characterizations of steps of obtaining chitosan from shrimp shells

2021 ◽  
Vol 7 (10) ◽  
pp. 98634-98652
Author(s):  
Mariana Dupinski Inoue ◽  
Isadora Atrib Garcia ◽  
Adriane Röedel Hirdes ◽  
Aline Joana Rolina Wohlmuth Alves Dos Santos
Keyword(s):  
Shrimp Shells

Physicochemical Characterization and In-Vitro Antimicrobial Activity of Chitosan Extracted from Shrimp Shells Waste from Beni Saf Sea, Algeria

2018 ◽  
Vol 7 (3) ◽  
pp. 122-129
Author(s):  
Fatma Youcefi ◽  
Ali Riazi ◽  
Meriem Mokhtar ◽  
Tefiani Choukri ◽  
Khaouani Naima
Keyword(s):  
Antimicrobial Activity ◽  
Physicochemical Characterization ◽  
Organic Polymer ◽  
In Vitro Antimicrobial Activity ◽  
Physiochemical Parameters ◽  
Microdilution Method ◽  
Molecular Arrangement ◽  
Shrimp Shells ◽  
Broth Microdilution Method

Chitosan is the most abundant natural organic polymer in nature. Its positive charge and its molecular arrangement confer interesting properties on the plane food, pharmaceutical, medical, cosmetic, water treatment. The present study was undertaken to study the physiochemical parameters and the in vitro antimicrobial activity of chitosan extracted from shrimp shells waste. The molecular weight of chitosan is 1414.33±16.99 kDa with, the percent of Ash 0,345±0,040 %, moisture is 2,98 ±0,13 % , and protein is 0.3 ±0,041 %.Chitosan produced (5 %) was also characterized with Fourier Transform Infrared Spectroscopy (FTIR) the spectrum of the chitosan sample from the shell recorded 16 peaks in the range of 689.40/cm and 3430.02 /cm. The antibacterial and antifungul activities of chitosan were examined against Escherichia coli ATCC10536, Pseudomonas aeruginosa ATCC 27853, Listeria monocytogenes ATCC7644, Staphylococcus aureus ATCC29213, Aspergillus niger ATCC 16888 and Candida albicans ATCC 10231 by agar wells diffusion the tests inhibitions zones diameters were 49,74± 0,75 , 54,35±0,93 , 42,27±1,07 , 32,95±0,28 and 53,73±0,64mm respectively. The minimum inhibitory concentration (MIC) using a broth microdilution method against tested microorganisms was ranging from 008% to 1.22%. These results open interesting perspectives of the chitosan. It can be used as new biomaterial with utility in many industrial areas.

Direct conversion of shrimp shells to O-acylated chitin with antibacterial and anti-tumor effects by natural deep eutectic solvents

2019 ◽  
Vol 21 (1) ◽  
pp. 87-98 ◽  
Author(s):  
Mi Feng ◽  
Xingmei Lu ◽  
Jie Zhang ◽  
Yi Li ◽  
Chunyan Shi ◽  
...  
Keyword(s):  
Deep Eutectic Solvents ◽  
Direct Conversion ◽  
Shrimp Shells ◽  
Natural Deep Eutectic Solvents

O-Acylated chitin was obtained directly from shrimp shells using ChCl/RCOOH (NADESs), which exhibited good antibacterial and anti-tumor effects.

scholarly journals Mechanical Behavior Optimization of Chitosan Extracted from Shrimp Shells as a Sustainable Material for Shopping Bags

2018 ◽  
Vol 9 (2) ◽  
pp. 37 ◽  
Author(s):  
Giacomo D’Angelo ◽  
Amal Elhussieny ◽  
Marwa Faisal ◽  
I. Fahim ◽  
Nicola Everitt
Keyword(s):  
Mechanical Behavior ◽  
Sustainable Material ◽  
Shrimp Shells

scholarly journals ISOLATION AND EXTRACTION OF CHITOSAN FROM SHRIMP SHELLS

2020 ◽  
Vol 8 (9) ◽  
pp. 657-664
Author(s):  
Sonia Hossain ◽  
◽  
Md Koushic Uddin ◽  
Keyword(s):  
Shrimp Shells

INFLUENCE OF CHITOSAN SOLUTION ON THE VIABILITY OF ARBUSCULAR MYCORRHIZAL SPORES

2021 ◽  
pp. 7-9
Author(s):  
Nalini Singh ◽  
Sunita Chahar
Keyword(s):  
Ascorbic Acid ◽  
Acetic Acid ◽  
Chemical Method ◽  
Arbuscular Mycorrhizal ◽  
Chitosan Solution ◽  
Spore Viability ◽  
Tetrazolium Bromide ◽  
Shrimp Shells ◽  
Arbuscular Mycorrhizal Fungal

The study was aimed to fortify the Arbuscular Mycorrhizal Fungal (AMF) spores, widely used in Bio-fertilizers with chitosan and check the inuence of chitosan on the viability of AMF spores. Chitosan was prepared from shrimp shells using chemical method involving demineralization, deproteinization and deacetylation.AMF spores were kept in three different concentrations of chitosan (0.1%, 0.5 %and 1%) which was prepared in 0.1% acetic acid and 0.1% ascorbic acid. Spore viability was checked by the MTT 3-(4, 5 th th th dimethylthiazol-yl-2, 5-diphenyl-2H-tetrazolium bromide) after a day, 10 day, 20 day and 30 day. Highest number of viable spores was observed in chitosan dissolved in 0.1% ascorbic acid as compared to chitosan in acetic acid.

scholarly journals Synthesis of benzimidazolones by immobilized gold nanoparticles on chitosan extracted from shrimp shells supported on fibrous phosphosilicate

RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6494-6501 ◽  
Author(s):  
Mahboobeh Zahedifar ◽  
Ali Es-haghi ◽  
Rahele Zhiani ◽  
Seyed Mohsen Sadeghzadeh
Keyword(s):  
Gold Nanoparticles ◽  
Composite Material ◽  
Shrimp Shells ◽  
Microcrystalline Chitosan

We demonstrate the synthesis of benzimidazolones from o-phenylenediamines and CO2 in the presence of gold nanoparticles supported on a composite material based on microcrystalline chitosan from shrimp shells and fibrous phosphosilicate.

scholarly journals Preparation and Characterization of Chitosan obtained from Pacific White Shrimp Shells and its in vitro Antifungal Activity

2020 ◽  
Vol 32 (10) ◽  
pp. 2515-2519
Author(s):  
Arnannit Kuyyogsuy
Keyword(s):  
Pacific White Shrimp ◽  
White Shrimp ◽  
X Ray Diffraction ◽  
Vitro Assay ◽  
Shrimp Shells ◽  
Xrd Patterns ◽  
Two Peaks ◽  
In Vitro Antifungal Activity

In this article, a method for the processing of chitosan from Pacific white shrimp shells is developed which involves three steps viz. demineralization, deproteinization, and deacetylation. The samples of chitosan with more than 90% degree of deacetylation (DD%) were obtained by FTIR. This indicated that the current processing method of shrimp shells was beneficial for chitosan production. The morphology of chitosan sample was determined using scanning electron microscopy (SEM). X-ray diffraction (XRD) patterns exhibited two peaks of crystalline character approximately at 10º and 20º (2θ). The effect of 0.1% (w/v) of chitosan on the growth of Penicillium digitatum was tested by an in vitro assay and the results showed an almost complete inhibition (98% ± 0.56).

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