Antioxidant and antimicrobial proprieties of chitin and chitosan extracted from Parapenaeus Longirostris shrimp shell waste

Hafsa, Jawhar; Smach, Mohamed Ali; Charfeddine, Bassem; Limem, Khalifa; Majdoub, Hatem; Rouatbi, Sonia

doi:10.1016/j.pharma.2015.07.005

Cited by 69 publications

(46 citation statements)

References 29 publications

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“…The FT-IR spectra showed an absorption bands at 3345 cm −1 and 2925 cm −1 attributed to -NH, -OH and -CH stretching vibration. Peaks at 1651 and 1567 cm −1 were assigned to the presence of a carbonyl group and amide II of CH, respectively [2,25].…”

Section: Ft-ir Analysis Of Cg-mrpsmentioning

confidence: 99%

“…Chitosan is a natural biopolymer of D-glucosamine and N-acetyl-glucosamine, produced by alkaline deacetylation of chitin and extracted from shellfish and cell walls of some fungi and microorganisms [1,2]. Chitosan has attracted more attention and has been broadly applied in the area of medicine, pharmaceuticals, biotechnology, agriculture and functional food [1][2][3][4]. Currently, chitosan and its derivatives have been recommended as dietary supplements for their confirmed biological properties, low toxicity and biodegradability.…”

Section: Introductionmentioning

confidence: 99%

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Antioxidant Activity Improvement of Apples Juice Supplemented with Chitosan-Galactose Maillard Reaction Products

et al. 2019

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Chitosan-galactose Maillard reaction (CG) were prepared by heating at 100 • C for 3 hrs in a model system containing chitosan (CH) and 1%, 1.5% and 2% (w/v) of galactose. The results showed that the absorbance at 294 and 420 nm, the fluorescence intensity and the color differences of CG Maillard reaction products (MRPs) increased significantly with the increase of galactose concentration, which indicated the development of MRPs. In addition, FT-IR analysis showed that the degree of deacetylation of CG-MRPs was reduced with the increasing galactose ratio by the schiff base (-C=N) formation, indicating that the galactose has been attached to the amino group of chitosan. Likewise, the antioxidant activities (DPPH, chelating ability and reducing power) of CG-MRPs were investigated. Notably, the effect of galactose concentration in CG-MRPs was found to enhance the antioxidant activity, indicating that CG-2% exhibited the highest antioxidant activity in the range of 0.25-2.0 mg/mL. Furthermore, the apple juice supplemented with CG-MRPs could significantly improve the antioxidant activities, and CG-2% in apple juice showed the better antioxidant capacity at the concentration of 1.0 mg/mL. Thus, we conclude that CG-MRPs addition may greatly improve the antioxidant quality of apple juice.

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Section: Ft-ir Analysis Of Cg-mrpsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antioxidant Activity Improvement of Apples Juice Supplemented with Chitosan-Galactose Maillard Reaction Products

et al. 2019

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“…It is known by its nontoxic, biocompatible, and biodegradable properties. Various researches had proved the chitosan antifungal and bactericidal effect, in addition to its good permeability to oxygen, which is a very important property allied with the treatment of wounds and burns …”

Section: Introductionmentioning

confidence: 99%

Synthesis and study of a new biopolymer‐based chitosan/hematoxylin grafted to cotton wound dressings

Alminderej

El‐Ghoul

2019

J of Applied Polymer Sci

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The present paper describes the development of wound dressing with high-enhanced biological characteristics. Firstly, we have synthesized a new polymer-based chitosan/hematoxylin (poly-PAA-CZ-HX), a bioactive blend for combined antibacterial and tissue regeneration properties. The main aim was to functionalize the wound dressing biomaterial with this bioactive medical polymer via a chemical grafting process. This functionalization must offer a permanent graft and preserve the medical properties of the added polymer of chitosan/hematoxylin. We have then studied the influence of different parameters involved in this particular grafting processing. Main parameters included thermofixation conditions (time and temperature) in addition to the concentration of different reactants. The last mentioned consist of a crosslinking agent the polyacrylic acid (PAA), a selected catalyst the sodium dihydrogen hypophosphite (NaH 2 PO 2 ), and thepoly-PAA-CZ-HX. Sorption capacity of modified dressings was then evaluated via the technique of the contact angle at various grafting rates. These wettability measurements have revealed a significant decrease of the contact angle of samples after functionalization, a desired characteristic of wound dressings, which means the clear improvement of the hydrophilicity. After the untreated and grafted cotton dressings were characterized by ATR-IR spectroscopy and TGA/DTA analysis, the results showed a chemical permanent grafting that resisted to standardized washings. Then an evaluation of mechanical properties of cotton dressings grafted with various proportions of poly-PAA-CZ-HX polymer was accomplished. Results revealed that the grafting reaction with selected conditions did not damage the mechanical characteristics of our native wound dressings. Finally, a SEM morphological study confirmed the permanent graft of the crosslinked CZ/HX biopolymer grafted to the cotton fibers and allowed us to evaluate its chemical grafting mode onto functionalized surfaces.

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“…Chitin, chitosan and its oligomers from shrimp cuticle have been shown to exhibit good antimicrobial activity against a number of important human pathogens (Benhabiles et al, 2012;Hafsa et al, 2016). One of the major sources of chitin and its derivatives comes from the exoskeletons derived from the seafood industry.…”

Section: Physical Materials Parameters Of the Crop Cuticular Lining Tmentioning

confidence: 99%

“…Studies have been done using chitinase inhibitors as animal feed-through fly larvicidal chemicals (Cetin et al, 2006), but I know of no studies targeting the microbes within the lumen of the crop. The antimicrobial effect of chitin and its derivatives is well established (Benhabiles et al, 2012;Hafsa et al, 2016), but no literature has been found where the antimicrobial-chitin compounds have been used to reduce the number of human pathogenic bacteria within the crop of the fly. By using an acceptable bait containing a powder or a solution containing chitin-based compounds within various animal contained rearing facilities (i.e.…”

Section: Use Of Chitin-based Powders To Destroy Microbes Within the Fmentioning

confidence: 99%

Fly foregut and transmission of microbes

Stoffolano

2019

Advances in Insect Physiology

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Antioxidant and antimicrobial proprieties of chitin and chitosan extracted from Parapenaeus Longirostris shrimp shell waste

Cited by 69 publications

References 29 publications

Antioxidant Activity Improvement of Apples Juice Supplemented with Chitosan-Galactose Maillard Reaction Products

Antioxidant Activity Improvement of Apples Juice Supplemented with Chitosan-Galactose Maillard Reaction Products

Synthesis and study of a new biopolymer‐based chitosan/hematoxylin grafted to cotton wound dressings

Fly foregut and transmission of microbes

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