Comparison of the physicochemical, rheological, and morphologic properties of chitosan from four insects

Luo, Qiang; Wang, Ying; Han, Qianqian; Ji, Lisu; Zhang, Hongmei; Fei, Zhenghao; Wang, Yanqing

doi:10.1016/j.carbpol.2019.01.030

Cited by 117 publications

(116 citation statements)

References 66 publications

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“…Yields of chitosan produced from crustaceans with heterogeneous deacetylation varied from 4 to 15% (related to the initial dry biomass). 26,113,121,153,156,165 These values are slightly higher than those obtained from insects. The primary reason for that is the presence of larger amounts of protein and fat in insect samples.…”

Section: Assessment Of Chitin Conversion Into Chitosanmentioning

confidence: 63%

“…Chitosan yields measured from the original biomass ranged from 2 to 8%. The highest values (26-28%) were obtained by Song et al 124 from Chrysomya megacephala larvae and by Luo et al 113 from cicada sloughs. Chitosan yield calculated from the respective chitin dry weight ranged from 60 to 83% (Table 2).…”

Section: Assessment Of Chitin Conversion Into Chitosanmentioning

confidence: 84%

“…The same is true for chitin and chitosan derived from crustaceans, where the wavenumbers of the peaks can vary slightly among different natural sources. 88 For insect-based chitin and chitosan, infrared spectra were used to confirm the homogeneity of chitin and chitosan isolated from several insect species, 113 to compare the spectral bands with those of commercially available chitin and chitosan 94,123 or to confirm the purity of insect-based chitin after the isolation process 106 by considering the strength and position of characteristic bands.…”

Section: Infrared Spectroscopymentioning

confidence: 99%

“…89 Main peaks for the chitosan crystal structure can be identified at 2⊔ of ∼10°and ∼20°. 91,113,116 The crystallinity index for chitin and chitosan is commonly calculated using the relation of the peak intensities measured at 16°(I am ), which is attributable to the amorphous content of the sample, and at 20°(I 110 ) according to the equation of Segal et al 179 :…”

Section: Infrared Spectroscopymentioning

confidence: 99%

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Current state of chitin purification and chitosan production from insects

Hahn

Tafi

Paul

et al. 2020

J of Chemical Tech & Biotech

233

113

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Chitin, and especially its deacetylated variant chitosan, has many applications, e.g. as carrier material for pharmaceutical drugs or as a flocculant in wastewater treatment. Despite its versatility and accessibility, chitin, the second most abundant polysaccharide on Earth, has so far been commercially extracted only from crustaceans and to a minor extent from fungi. Insects are a viable alternative source of chitin, but they have not been exploited in the past due to limited availability. Today however, for the sustainable production of animal feed, insect farming is being developed substantially. The availability of large quantities of insect biomass and chitin-rich side products such as exuviae and exoskeletons has been increasing. This review provides an overview of recently published studies of chitin extraction from insects, its subsequent conversion into chitosan and the primary analytical methods used to characterize insect-based chitin and chitosan. We have discovered a large number of research articles published over the past 20 years, confirming the increased attention being received by chitin and chitosan production from insects. Despite numerous publications, we identified several knowledge gaps, such as a lack of data concerning chitin purification degree and chitosan yield. Furthermore, analytical methods used to obtain physicochemical characteristics, structural information and chemical composition meet basic qualitative requirements but do not satisfy the need for a more quantitative evaluation. Despite the current shortcomings that need to be overcome, this review presents encouraging data on the use of insects as an alternative source of chitin and chitosan in the future.

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Section: Assessment Of Chitin Conversion Into Chitosanmentioning

confidence: 63%

Section: Assessment Of Chitin Conversion Into Chitosanmentioning

confidence: 84%

Section: Infrared Spectroscopymentioning

confidence: 99%

Section: Infrared Spectroscopymentioning

confidence: 99%

See 2 more Smart Citations

Current state of chitin purification and chitosan production from insects

Hahn

Tafi

Paul

et al. 2020

J of Chemical Tech & Biotech

233

113

View full text Add to dashboard Cite

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“…Hossain and Iqbal [ 22 ] found that the solubility of CS could be affected by several critical factors including deacetylation reaction time, temperature, alkali concentration, and particle size. Moreover, solubility of CS could also be affected by MW and biological origins of CS [ 23 ].…”

Section: Resultsmentioning

confidence: 99%

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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Pupae and Its Applications

2021

Sustainable Use of Byproducts From Silk Processing

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Comparison of the physicochemical, rheological, and morphologic properties of chitosan from four insects

Cited by 117 publications

References 66 publications

Current state of chitin purification and chitosan production from insects

Current state of chitin purification and chitosan production from insects

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

Pupae and Its Applications

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