Synthesis and characterisation of chitin from periwinkle (Tympanotonus fusatus (L.)) and snail (Lissachatina fulica (Bowdich)) shells

Akpan, E. I.; Gbenebor, O. P.; Adeosun, S. O.

doi:10.1016/j.ijbiomac.2017.08.106

Cited by 24 publications

(18 citation statements)

References 68 publications

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“…Furthermore, the specific bands of -C-O and -C-O-C stretching absorbing between 1052 and 1030 cm − 1 were observed for all CS. All CS showed the similar FT-IR curves, and the absorbance of peaks around 1593 cm −1 represented the -NH 2 bending vibration in amino group, which indicated the difference of DDA among CS [ 35 ]; the higher the peak was, the higher DDA was, which was consistent with DDA results ( Figure 1 ).…”

Section: Resultssupporting

confidence: 62%

Insight into Physicochemical, Rheological, and Antibacterial Properties of Chitosan Extracted from Antarctic krill: A Comparative Study

et al. 2020

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In this work, physicochemical, rheological, and antibacterial properties of chitosan (CS) extracted from white shrimp (WS), giant river prawn (GP), and Antarctic krill (AK) were investigated. The results demonstrated that molecular weight (MW) of commercial chitosan (CCS), WSCS, GPCS, and AKCS were 1175.8, 2130.4, 1293.3, and 1109.3 kDa with the degree of deacetylation (DDA) of 73.5, 74.1, 82.1, and 75.9%, respectively. Fourier transform infrared (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscope (SEM) were employed to study the structural differences of CS. Moreover, storage modulus (G′) and loss modulus (G″) of AKCS were lower than that of WSCS and GPCS, respectively, but higher than that of CCS. Minimum inhibitory concentration (MIC) and minimum bacterial concentration (MBC) of CS against Escherichia coli and Staphylococcus aureus were investigated at concentration between 0.0125 and 1 mg/mL. These results highlighted that AKCS with low viscoelastic properties had a potential application in food and pharmaceutical application.

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Section: Resultssupporting

confidence: 62%

Insight into Physicochemical, Rheological, and Antibacterial Properties of Chitosan Extracted from Antarctic krill: A Comparative Study

et al. 2020

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“…Although, the surfaces are of different particle sizes, with some void spaces shown in the background. From the SEM micrographs observed, chitin extracted from snail shells was shown to have a resemblance to those from previous studies by Akpan et al. (2018) and Gbenebor et al.…”

Section: Resultssupporting

confidence: 75%

Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid

Oyekunle

Omoleye

2019

Heliyon

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This study considers the kinetics of snail shells demineralization process using acetic acid. It was washed, sundried then ground into four different particle sizes. The ranges of particle sizes are 6.3–4.75 mm, 4.75–2 mm, 2 - 1 mm, and 600 -300 μm. The shells were first deproteinized with sodium hydroxide solution thereafter they were demineralized using 1.2 M acetic acid solution. Kinetics of demineralization of the snail shells was performed by XRF analysis of the chitin produced at 5, 10, 15, 20, 25, 30, and 35 min. The kinetic results show that mechanism of chitin formation from snail shell occurs through the chemical reaction controlled (CRC) model of the shrinking core model for particle sizes between 6.3 – 4.75 mm, 4.75–2 mm, and 2–1 mm particle sizes while Fluid Film Diffusion (FFD) model was observed for the smaller range of 600–300 μm particle sizes. The surface morphology and the FTIR analysis of the synthesized chitin were typical of those obtained for earlier studies.

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“…The DD of chitosan from fish, shrimp, and crab shells was 75%, 78% and 70%, respectively ( Kumari et al, 2017 ). Previous studies have suggested that a higher DD is a significant development of chitin that can be used in scaffolds and implantations in the biomedical field ( Akpan, Gbenebor, & Adeosun, 2018 ).…”

Section: Physico-chemical Characterizationmentioning

confidence: 99%

Recent insights into the extraction, characterization, and bioactivities of chitin and chitosan from insects

Mohan¹,

Ganesan

Thirunavukkarasu

et al. 2020

Trends in Food Science & Technology

216

120

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Background Insects are a living resource used for human nutrition, medicine, and industry. Several potential sources of proteins, peptides, and biopolymers, such as silk, chitin, and chitosan are utilized in industry and for biotechnology applications. Chitosan is an amino-polysaccharide derivative of chitin that consists of linear amino polysaccharides with d -glucosamine and N-acetyl- d -glucosamine units. Currently, the chief commercial sources of chitin and chitosan are crustacean shells that accumulate as a major waste product from the marine food industry. Existing chitin resources have some natural challenges, including insufficient supplies, seasonal availability, and environmental pollution. As an alternative, insects could be utilized as unconventional but feasible sources of chitin and chitosan. Scope and approach This review focuses on the recent sources of insect chitin and chitosan, particularly from the Lepidoptera, Coleoptera, Orthoptera, Hymenoptera, Diptera, Hemiptera, Dictyoptera, and Odonata orders. In addition, the extraction methods and physicochemical characteristics are discussed. Insect chitin and chitosan have numerous biological activities and could be used for food, biomedical, and industrial applications. Key findings and conclusions Recently, the invasive and harmful effects of insect species causing severe damage in agricultural crops has led to great economic losses globally. These dangerous species serve as potential sources of chitin and are underutilized worldwide. The conclusion of the present study provides better insight into the conversion of insect waste-derived chitin into value-added products as an alternative chitin source to address food security related challenges.

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Synthesis and characterisation of chitin from periwinkle (Tympanotonus fusatus (L.)) and snail (Lissachatina fulica (Bowdich)) shells

Cited by 24 publications

References 68 publications

Insight into Physicochemical, Rheological, and Antibacterial Properties of Chitosan Extracted from Antarctic krill: A Comparative Study

Insight into Physicochemical, Rheological, and Antibacterial Properties of Chitosan Extracted from Antarctic krill: A Comparative Study

Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid

Recent insights into the extraction, characterization, and bioactivities of chitin and chitosan from insects

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