Chemical composition, structural features, surface morphology and bioactivities of chitosan derivatives from lobster (Thenus unimaculatus) shells

Arasukumar, Balu; Prabakaran, Gopal; Gunalan, B.; Moovendhan, Meivelu

doi:10.1016/j.ijbiomac.2019.06.033

Cited by 44 publications

(17 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chitin is a natural polysaccharide found in fungi cell walls as well as in crustacean and insect exoskeletons and is the second most abundant biopolymer in nature after cellulose. Chitin is converted to chitosan by deacetylation that involves the removal of the acetyl group [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Seafood Waste as Attractive Source of Chitin and Chitosan Production and Their Applications

Santos

Marques

Maia

et al. 2020

IJMS

282

123

View full text Add to dashboard Cite

Chitosan is a cationic polymer obtained by deacetylation of chitin, found abundantly in crustacean, insect, arthropod exoskeletons, and molluscs. The process of obtaining chitin by the chemical extraction method comprises the steps of deproteinization, demineralization, and discoloration. To obtain chitosan, the deacetylation of chitin is necessary. These polymers can also be extracted through the biological extraction method involving the use of microorganisms. Chitosan has biodegradable and biocompatible properties, being applied in the pharmaceutical, cosmetic, food, biomedical, chemical, and textile industries. Chitosan and its derivatives may be used in the form of gels, beads, membranes, films, and sponges, depending on their application. Polymer blending can also be performed to improve the mechanical properties of the bioproduct. This review aims to provide the latest information on existing methods for chitin and chitosan recovery from marine waste as well as their applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Seafood Waste as Attractive Source of Chitin and Chitosan Production and Their Applications

Santos

Marques

Maia

et al. 2020

IJMS

282

123

View full text Add to dashboard Cite

show abstract

“…A study by Arasukumar et al . reported that Thenus unimaculatus showed 35% chitin yield 22 . In contrast, the chitin yield from shrimp shell waste was 30%, which was found in another study 31 .…”

Section: Introductionmentioning

confidence: 78%

“…The chitosan yield was found to be 41% from chitin of Thenus unimaculatus. 22 The physicochemical characterization of chitosan is related to the chitin source and the conditions of the production process. 24 The ash content and moisture of chitosan from the chitin of Thenus unimaculatus were found to be 0.79% and 1.2%, respectively, which suggested that this chitosan is a nearly purified form.…”

Section: Application Of Shell Wastes To Produce Chitosanmentioning

confidence: 99%

“…suggested that the chitosan yield of mussel shells chitin was 15.14%. The chitosan yield was found to be 41% from chitin of Thenus unimaculatus 22 . The physicochemical characterization of chitosan is related to the chitin source and the conditions of the production process 24 .…”

Section: Introductionmentioning

confidence: 98%

“…Chitosan from silkworm pupae and egg shell displayed excellent properties, including antimicrobial properties and cytocompatibility 24 . There are also active functional groups like alkyl halide, alkynyl, and alkane and alkyne protons with different bond stretching properties in their chemical structures 22 . It was found that chitosan also exhibits microstructure and morphological characteristics with a rough, cross linked crystalline structure.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Shell‐derived chitosan as a green flocculant to harvest microalgae for biofuel production

Yin

Xinzhu

et al. 2021

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

Microalgae are considered to be the feedstock for third‐generation biofuels but there are still no commercial applications of microalgae biomass. This is due to the costly harvesting process, resulting from their specific characteristics such as small cell sizes, negatively charged surfaces, and stable dispersion in culture broths. Chitosan derived from crustacean shells, as a highly efficient and non‐toxic flocculant for the harvesting of microalgae, can simultaneously achieve value‐added recycling of shell wastes and efficient flocculation of microalgal biomass. Shell‐derived chitosan is a biopolymer with a high economic value, which might promote shell waste resource utilization. Its application for microalgae harvesting also has no effect on the downstream process for biodiesel production. More than 90% of microalgal biomass can be harvested under certain conditions using chitosan as the flocculant, demonstrating a strong potential for practical application in future. The application of chitosan to flocculate microalgae still has some limitations, and efforts should be made regarding the enhancement of cost‐effectiveness, improvement of harvesting processes, scalability of practical application, and implementation of supporting policies. The contribution of this study lies in the combination of chitosan production from crustacean shell wastes and its application in microalgae harvesting, which can realize the value‐added recycling of shell wastes and efficient flocculation of microalgal biomass. © 2021 Society of Industrial Chemistry and John Wiley & Sons Ltd

show abstract

Proteases and microwave treatment on the quality of chitin and chitosan produced from white shrimp (Penaeus vannamei)

Dong

Qiu

Feng

et al. 2023

eFood

View full text Add to dashboard Cite

The aim of this study was to extract chitin and chitosan from shrimp shells by neutral protease-assisted microwave multiple heating (one, two, three, and four) treatment. The structure and physicochemical properties of chitosan were characterized by scanning electron microscopy (SEM) and Fourier infrared spectroscopy (FTIR). The dielectric properties of chitosan acetate solution were determined by using a PNA-L network analyzer, and the correlation between chitosan deacetylation degree and dielectric loss was further analyzed. The results show that the degree of deacetylation of chitosan increased from 84.9% to 90.8% with the increase in the number of microwave heating treatments. Furthermore, the chitosan prepared by multiple microwave heating was smoother. The dielectric constant of chitosan solution gradually decreases with the increase of frequency, and the dielectric loss first decreases and then increases. In addition, the dielectric loss of the chitosan solution increased with the degree of deacetylation of chitosan at 2450 MHz (R 2 > 0.99). Therefore, enzyme-assisted microwave extraction of chitosan can be used to obtain high-quality chitosan under the condition of increasing the number of heating treatments.

show abstract

Chemical composition, structural features, surface morphology and bioactivities of chitosan derivatives from lobster (Thenus unimaculatus) shells

Cited by 44 publications

References 45 publications

Seafood Waste as Attractive Source of Chitin and Chitosan Production and Their Applications

Seafood Waste as Attractive Source of Chitin and Chitosan Production and Their Applications

Shell‐derived chitosan as a green flocculant to harvest microalgae for biofuel production

Proteases and microwave treatment on the quality of chitin and chitosan produced from white shrimp (Penaeus vannamei)

Contact Info

Product

Resources

About