Chilean crab (Aegla cholchol) as a new source of chitin and chitosan with antifungal properties against Candida spp

Bernabé, Patricia; Becherán, Liliam; Cabrera‐Barjas, Gustavo; Nešić, Aleksandra; Alburquenque, Claudio; Tapia, Cecilia; Taboada, Edelio; Alderete, Joel B.; Ríos, Patricio De los

doi:10.1016/j.ijbiomac.2020.01.126

Cited by 47 publications

(14 citation statements)

References 65 publications

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“…It is evident in this study that intense bands of absorbance were found at the primary amine and the hydroxyl group. This highest absorption has also been reported by [ 26 , 72 ]. Abideen [ 42 ], and Bernabé [ 72 ] reported the peak for vibration of amine I (NH 2 ) at 1624 cm −1 , while 1654 cm −l and 1654 cm −l were observed in this study for commercial and carapace chitosan, respectively.…”

Section: Resultssupporting

confidence: 84%

“…This highest absorption has also been reported by [ 26 , 72 ]. Abideen [ 42 ], and Bernabé [ 72 ] reported the peak for vibration of amine I (NH 2 ) at 1624 cm −1 , while 1654 cm −l and 1654 cm −l were observed in this study for commercial and carapace chitosan, respectively. Furthermore, amide III groups were located at 1383 cm −l and 1383 cm −l in commercial and carapace chitosan, respectively.…”

Section: Resultssupporting

confidence: 84%

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Response Surface Methodology (RSM) Approach to Optimization of Coagulation-Flocculation of Aquaculture Wastewater Treatment Using Chitosan from Carapace of Giant Freshwater Prawn Macrobrachium rosenbergii

et al. 2023

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The major sources of waste from aquaculture operations emanates from fish or shellfish processing and wastewater generation. A simple technique called coagulation/flocculation utilizes biowaste from aquaculture to produce chitosan coagulant for wastewater treatment. A chemical method was applied in the present study for chitin and chitosan extraction from carapace of Macrobrachium rosenbergii and subsequent application for removal of turbidity and salinity from shrimp aquaculture wastewater. Box-Behnken in RSM was used to determine the optimum operating conditions of chitosan dosage, pH, and settling time, after which quadratic models were developed and validated. Results show that 80 g of raw powder carapace yielded chitin and chitosan of 23.79% and 20.21%, respectively. The low moisture (0.38%) and ash (12.58%) content were an indication of good quality chitosan, while other properties such as water-binding capacity (WBC), fat-binding capacity (FBC), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscope (SEM) confirmed the structure and the α-group, as well as the rough morphology of chitosan. In addition, the high solubility (71.23%) and DDA (85.20%) suggested good coagulant potentials. It was recorded in this study that 87.67% turbidity was successfully removed at 20 mg/L of chitosan dosage and 6.25 pH after 30 min settling time, while 21.43% salinity was removed at 5 mg/L of chitosan dosage, 7.5pH, and 30 min settling time. Therefore, the process conditions adopted in this study yielded chitosan of good quality, suitable as biopolymer coagulant for aquaculture wastewater treatment.

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Section: Resultssupporting

confidence: 84%

Section: Resultssupporting

confidence: 84%

Response Surface Methodology (RSM) Approach to Optimization of Coagulation-Flocculation of Aquaculture Wastewater Treatment Using Chitosan from Carapace of Giant Freshwater Prawn Macrobrachium rosenbergii

et al. 2023

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“…In this stage, the associated mass loss was 59.4%. This is a complex process where simultaneous monomer dehydration, chain scission, and thermal decomposition of glucosamine and N-acetylated units occurs [4]. Consequently, chain packing is loosened.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

“…Generally, chitin or poly (β-(1→4)-N-acetyl-D-glucosamine) is a natural polysaccharide derived from large numbers of living organisms [4][5][6]. It is the second most abundant natural polymer, next to cellulose.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas

et al. 2021

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β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.

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“…Certain metals, however, show the opposite behavior, namely when amino groups produced by acetamide hydrolysis do better to bind metal ions, e.g., with Y, Ni or Cu. Complexation of trace metals essential to microorganisms (too) by chitin or chitosan apparently do block growth/multiplication of pathogenic bacteria [44] or yeasts [45].…”

Section: Effects Of Boiling Water On M Retentionmentioning

confidence: 99%

Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

Blind

Fränzle

2021

Polysaccharides

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Chitin is an effective sorbent which can be used in environmental monitoring, beyond obvious applications in withholding metal-containing pollutants from wastewater- or nuclear fuel reprocessing flows, since background levels in (purified) chitin are very low except for a few metals (Fe, Cu, Al, Ti, and Zn). Since retention of Mx+ and their complexes on chitin depend on an oxidation state, and to a lesser extent the presence of possible ligands or co-ligands, partition between chitin samples exposed to sediment and those exposed to water can be changed by environmental factors such as local biota producing or absorbing/metabolizing effective ligands such as citrate or oxalate and by changes of redox potential. Thermodynamics are studied via log P, using calibration functions log P vs. 1/r or log P vs. Σσ (sum of Hammett parameters of ligand donor groups) for di- and trivalent elements not involved in biochemical activity (not even indirectly) and thus measuring “deviations” from expected values. These “deviations” can be due to input as a pollutant, biochemical use of certain elements, precipitation or (bio-induced reduction of SO42− or CO2) dissolution of solids in sediment. Biochemical processes which occur deep in sediment can be detected due to this effect. Data from grafted chitin (saturation within ≤ 10 min) and from outer surfaces of arthropods caught at the same site do agree well. Log P is more telling than total amounts retrieved. Future applications of these features of chitin are outlined.

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Chilean crab (Aegla cholchol) as a new source of chitin and chitosan with antifungal properties against Candida spp

Cited by 47 publications

References 65 publications

Response Surface Methodology (RSM) Approach to Optimization of Coagulation-Flocculation of Aquaculture Wastewater Treatment Using Chitosan from Carapace of Giant Freshwater Prawn Macrobrachium rosenbergii

Response Surface Methodology (RSM) Approach to Optimization of Coagulation-Flocculation of Aquaculture Wastewater Treatment Using Chitosan from Carapace of Giant Freshwater Prawn Macrobrachium rosenbergii

Utilization of Marine Waste to Obtain β-Chitin Nanofibers and Films from Giant Humboldt Squid Dosidicus gigas

Chitin as a Sorbent Superior to Other Biopolymers: Features and Applications in Environmental Research, Energy Conversion, and Understanding Evolution of Animals

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