Valorisation des résidus industriels de pêches pour la transformation de chitosane par technique hydrothermo-chimique

Truong, To Oanh; Häusler, Robert; Monette, Frédéric; Niquette, Patrick

doi:10.7202/016170ar

Cited by 16 publications

(10 citation statements)

References 28 publications

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“…These variations may be affected by the different nature of raw material and the parameters of deacetylation process (time and temperature). Truong et al (2007) [7] and Kumar (2000) [17] reported that the DD% necessary to obtain a chitosan product is 65% or higher. Ash content indicates the effectiveness of the demineralization step, No et al (1995) [18] reported that chitosan of a good quality must have less than 1% of ash content, which is in agreement with the results obtained in this study (0.94%).…”

Section: Discussionmentioning

confidence: 99%

“…Chitosan was obtained after the two following steps: acid demineralization followed by simultaneous deproteinization and deacetylation by hydrothermal-chemical method in an alkali environment, with a solid-liquid ratio of 1:10 w/v (weight of dry shell / volume of diluted solution), according to the method described by Truong et al (2007) [7] with some modifications.…”

Section: Chitosan Extractionmentioning

confidence: 99%

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Optimization and characterization of gelatin and chitosan extracted from fish and shrimp waste

Chairi

Laglaoui

et al. 2018

E3S Web Conf.

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Abstract. Fish and seafood processing industries generate large quantities of waste which are at the origin of several environmental, economic and social problems. However fish waste could contain high value-added substances such as biopolymers. This work focuses on optimizing the gelatin and chitosan extraction from tilapia fish skins and shrimp shells respectively. The gelatin extraction process was optimized using alkali acid treatment prior to thermal hydrolysis. Three different acids were tested at different concentrations. Chitosan was obtained after acid demineralization followed by simultaneous hydrothermal deproteinization and deacetylation by an alkali treatment with different concentrations of HCl and NaOH. The extracted gelatin and chitosan with the highest yield were characterized by determining their main physicochemical properties (Degree of deacetylation, viscosity, pH, moisture and ash content). Results show a significant influence of the acid type and concentration on the extraction yield of gelatin and chitosan, with an average yield of 12.24% and 3.85% respectively. Furthermore, the obtained physicochemical properties of both extracted gelatin and chitosan were within the recommended standard values of the commercial ones used in the industry.

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Section: Discussionmentioning

confidence: 99%

Section: Chitosan Extractionmentioning

confidence: 99%

Optimization and characterization of gelatin and chitosan extracted from fish and shrimp waste

Chairi

Laglaoui

et al. 2018

E3S Web Conf.

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“…High temperatures are used for very short periods (20-30 min), as reported by Kaya et al 100 and Monter-Miranda et al 119 In contrast, longer treatment periods (12-24 h) are applied for incubations done at room temperature. 106,114,123 High temperatures promote the penetration of the solvent into the chitin matrix 145 ; however, they can cause polymer degradation. 25 The efficiency of demineralization (DME) can be evaluated by assessing the mineral content of insect samples before (MC BT ) and after treatment (MC AT ) according to the following equation:…”

Section: Chitin Purificationmentioning

confidence: 99%

Current state of chitin purification and chitosan production from insects

Hahn

Tafi

Paul

et al. 2020

J of Chemical Tech & Biotech

209

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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“…The deacetylation reaction is rarely complete, to avoid a sharp reduction in the molecular weight of the polymer. The use of high temperatures generally improves the reaction rates and yields [25]. Ultrasound and microwave technologies were also proposed to enhance the extraction and deacetylation steps [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Modification of Chitosan for the Generation of Functional Derivatives

et al. 2019

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Today, chitosan (CS) is probably considered as a biofunctional polysaccharide with the most notable growth and potential for applications in various fields. The progress in chitin chemistry and the need to replace additives and non-natural polymers with functional natural-based polymers have opened many new opportunities for CS and its derivatives. Thanks to the specific reactive groups of CS and easy chemical modifications, a wide range of physico-chemical and biological properties can be obtained from this ubiquitous polysaccharide that is composed of β-(1,4)-2-acetamido-2-deoxy-d-glucose repeating units. This review is presented to share insights into multiple native/modified CSs and chitooligosaccharides (COS) associated with their functional properties. An overview will be given on bioadhesive applications, antimicrobial activities, adsorption, and chelation in the wine industry, as well as developments in medical fields or biodegradability.

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Valorisation des résidus industriels de pêches pour la transformation de chitosane par technique hydrothermo-chimique

Cited by 16 publications

References 28 publications

Optimization and characterization of gelatin and chitosan extracted from fish and shrimp waste

Optimization and characterization of gelatin and chitosan extracted from fish and shrimp waste

Current state of chitin purification and chitosan production from insects

Modification of Chitosan for the Generation of Functional Derivatives

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