Structural differences between chitin and chitosan extracted from three different marine sources

Hajji, Sawssen; Younes, Islem; Ghorbel-Bellaaj, Olfa; Hajji, Rachid; Rinaudo, Marguerite; Nasri, Monçef; Jellouli, Kemel

doi:10.1016/j.ijbiomac.2014.01.045

Cited by 321 publications

(151 citation statements)

References 39 publications

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“…In literature, the CrI values was reported around 67.8% and 64.1% for crab and shrimp chitins [39]. This value was found to be 89.05% for H. parallela chitin, 89.7% for cicada sloughs chitin, 76% for adult potato beetle chitin and 72% for larval potato beetle chitin [17,22,36].…”

Section: Xrdmentioning

confidence: 90%

Chitin extraction and chitosan production from cell wall of two mushroom species (Lactarius vellereus and Phyllophora ribis)

Erdoğan

Kaya

Akata

2017

AIP Conference Proceedings

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Abstract.Chitin is an important polysaccharide found as supporting material in the cell wall of mushrooms. In this study, chitin and chitosan were obtained from the cell wall of two different mushroom species using chemical method and physicochemically characterized. The dry weight chitin contents of the mushroom species were determined as 11.4% for Lactarius vellereus and 7.9% for Phyllophora ribis. Chitosan yields of the chitins isolated from L. vellereus and P. ribis were 73.1% and 75.3%, respectively. While, the maximum degradation temperatures of L. vellereus and P. ribis chitins were found to be 354°C and 275°C by thermogravimetric analysis (TGA), the maximum degradation temperature of the chitosans obtained from these chitins were recorded as 262°C and 229°C, respectively. The crystalline index values of L. vellereus and P. ribis chitins were calculated as 64% and 49%, respectively according to the X-ray diffraction analysis (XRD) results. The scanning electron microscopy (SEM) indicated that there were no nanofiber or nanopores on the surface of the chitins and chitosans obtained from these two mushroom species. The results of this study revealed that L. vellereus and P. ribis had higher chitin contents than some other insects and mushroom species recorded in the literature and these species may be used as a potential chitin sources.

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Section: Xrdmentioning

confidence: 90%

Chitin extraction and chitosan production from cell wall of two mushroom species (Lactarius vellereus and Phyllophora ribis)

Erdoğan

Kaya

Akata

2017

AIP Conference Proceedings

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“…Depending on its source, chitin occurs as two main polymorphs [79], namely the α-and β-forms. Both forms can be differentiated by infrared; solid-state NMR [80] spectroscopy, and X-ray diffraction [81][82][83].…”

Section: Structural Properties Of Chitinmentioning

confidence: 99%

Poriferan Chitin as a Versatile Template for Extreme Biomimetics

et al. 2015

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Abstract:In this mini-review, we shall first cover a short history of the discovery of chitin isolated from sponges; as well as its evolutionarily ancient roots. Next, we will delve into the unique structural, mechanical, and thermal properties of this naturally occurring polymer to illuminate how its physicochemical properties may find uses in diverse areas of the material sciences. We show how the unique properties and morphology of sponge chitin renders it quite useful for the new route of "Extreme Biomimetics"; where high temperatures and pressures allow a range of interesting bioinorganic composite materials to be made. These new biomaterials have electrical, chemical, and material properties that have applications in water filtration, medicine, catalysis, and biosensing. OPEN ACCESSPolymers 2015, 7 236

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“…Chitosan is a natural-based biopolymer derived from chitin, which is the second most abundant polymer in nature (Hajji et al 2014;. However, its insolubility and high viscosity limit its application as a nutrient source.…”

Section: Introductionmentioning

confidence: 99%

Maternal chitosan oligosaccharide supplementation during late gestation and lactation affects offspring growth

Wan

2018

Italian Journal of Animal Science

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Chitosan oligosaccharide (COS), a natural compound derived from chitin, has growth promotion property. However, the nature of the relationship between maternal COS supplementation and offspring growth is not yet understood. Therefore, we intended to determine the effects of maternal COS supplementation in late gestation and lactation on the offspring growth performance. Twenty-four pregnant Yorkshire sows were distributed into two equal groups (n ¼ 12) and fed either with a basal diet (control group) or a basal diet containing 100 mg/kg COS, from gestation day 85 until lactation day 21. Serum samples were collected from six sows of average body weight, from each group on farrowing day (lactation day 1) and lactation day 21, whereas colostrum and milk samples were respectively obtained on lactation days 1 and 21. We found that maternal COS supplementation significantly increased (p < .05) the average piglet weaning weight per litter. Supplementation of COS in the sow diet elevated (p < .05) the serum interleukin-10, immunoglobulin A (IgA) and IgM concentrations, as well as total antioxidant capacity. Moreover, higher (p < .05) colostrum IgM and milk lactose contents were simultaneously observed in COS-treated sows compared to the control sows. In summary, COS supplementation during late gestation and lactation can boost antioxidant capacity and humoural immunity of sows, and contributes to improving colostrum and milk quality, ultimately, enhancing the offspring growth performance. ARTICLE HISTORY

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Structural differences between chitin and chitosan extracted from three different marine sources

Cited by 321 publications

References 39 publications

Chitin extraction and chitosan production from cell wall of two mushroom species (Lactarius vellereus and Phyllophora ribis)

Chitin extraction and chitosan production from cell wall of two mushroom species (Lactarius vellereus and Phyllophora ribis)

Poriferan Chitin as a Versatile Template for Extreme Biomimetics

Maternal chitosan oligosaccharide supplementation during late gestation and lactation affects offspring growth

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