Application of marine-derived polysaccharides as immunostimulants in aquaculture: A review of current knowledge and further perspectives

Mohan, Kanwar; Ravichandran, S.; Thirunavukkarasu, Mahesh; Uthayakumar, Venkatachalam; Chandirasekar, Ramachandran; Seedevi, Palaniappan; Ganesan, Abirami Ramu; Rajan, Durairaj Karthick

doi:10.1016/j.fsi.2018.12.072

Cited by 117 publications

(64 citation statements)

References 177 publications

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“…The three species of green macroalgae (U. intestinalis, U. rigida, and C. lentillifera) are the major types of algae produced from Thai algae farming. These Chlorophyceae species are an important source of water-soluble polysaccharides known as ulvans [13,17,25,29,30]. In this study, these algal species were used for the extraction of bioactive compounds by the hot water extraction method to investigate the efficacy of their biological properties for application in Pacific white shrimp culture.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial and Antiviral Activities of Local Thai Green Macroalgae Crude Extracts in Pacific White Shrimp (Litopenaeus vannamei)

et al. 2020

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Macroalgae are potentially excellent sources of bioactive secondary metabolites useful for the development of new functional ingredients. This study was conducted to determine the antimicrobial efficacy of the hot water crude extracts (HWCEs) of three species of local Thai green macroalgae Ulva intestinalis (Ui), U. rigida (Ur), and Caulopa lentillifera (Cl) and a commercial ulvan from U. armoricana (Ua). Chemical analysis indicated that the HWCE of Ur showed the highest sulfate content (13.9% ± 0.4%), while that of Ua contained the highest uronic acid and carbohydrate contents (41.47% ± 4.98% and 64.03% ± 2.75%, respectively), which were higher than those of Ur (32.75% ± 1.53% and 51.02% ± 3.72%). Structural analysis of these extracts by Fourier-transform infrared (FTIR) spectroscopy revealed that these HWCEs are complex with a signal at 1250 cm−1 corresponding to S=O stretching vibrations, while the signals at 850 cm−1 were attributed to the C–O–S bending vibration of the sulfate ester in the axial position. These HWCEs showed the growth suppression against some pathogenic Vibrio spp. Interestingly, the HWCEs from Ui at concentrations of 5 and 10 mg/mL completely inhibited white spot syndrome virus (WSSV) in shrimp injected with HWCE–WSSV preincubated solutions. This inhibitory effect was further confirmed by the reduction in viral loads and histopathology of surviving and moribund shrimp.

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Section: Discussionmentioning

confidence: 99%

Antibacterial and Antiviral Activities of Local Thai Green Macroalgae Crude Extracts in Pacific White Shrimp (Litopenaeus vannamei)

et al. 2020

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“…The great variety of applications of chitosan in the field of biomaterials is due to its excellent properties when interacting with the human body: bioactivity [11], antimicrobial and antifungal activity [12,13], immunostimulation [14], chemotactic action, enzymatic biodegradability, mucoadhesion, and epithelial permeability [15], which supports the adhesion and proliferation of different cell types [16]. With the above properties, CHI derivatives serve a broad range of applications and these materials have advanced at a dramatic pace into many fields, including skin, wound, and burn management [17]; drug delivery and pharmaceutical applications [18]; tissue engineering [19]; dentistry [20]; plant science and agriculture [21]; veterinary science [22]; cosmetics and cosmeceutical [23]; food and nutraceuticals [24]; and, paper industry [25], among others.…”

Section: Introductionmentioning

confidence: 99%

Extraction and Physicochemical Characterization of Chitin Derived from the Asian Hornet, Vespa velutina Lepeletier 1836 (Hym.: Vespidae)

et al. 2020

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Fifteen years ago, at least one multimated female yellow-legged Asian hornet (Vespa velutina Lepeletier 1836) arrived in France, which gave rise to a pan-European invasion. In this study, the isolation and characterization of chitin (CHI) that was obtained from Vespa velutina (CHIVV) is described. In addition, an easy procedure is carried out to capture the raw insect, selectively and with high rates of success. The chitin contents of dry VV was observed to be 11.7%. Fourier transform infrared spectroscopy (FTIR), solid-state NMR (ssNMR), elemental analysis (EA), scanning electron microscopy (SEM), and thermogravimetric analysis (TG) characterized the physicochemical properties of CHIVV. The obtained CHIVV is close to pure (43.47% C, 6.94% H, and 6.85% N), and full acetylated with a value of 95.44%. Additionally, lifetime and kinetic parameters such as activation E and the frequency factor A using model-free and model-fitting methods, were determined. For CHIVV the solid state mechanism that follows the thermodegradation is of type F2 (random nucleation around two nuclei). The invasive Asian hornet is a promising alternative source of CHI, based on certain factors, such as the current and probable continued abundance of the quantity and quality of the product obtained.

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“…Likewise, fucoidan and other antimicrobial compounds are useful tools in aquaculture, which can increase the resistance of the aquatic species against bacterial and viral diseases. For instance, dietary supplementation with fucoidan, alginate and ulvan have demonstrated the ability to improve the survival of several fish and crustaceans species against bacteria and viruses that threaten aquaculture production [ 210 ].…”

Section: Applicationsmentioning

confidence: 99%

Macroalgae as a Source of Valuable Antimicrobial Compounds: Extraction and Applications

et al. 2020

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In the last few decades, attention on new natural antimicrobial compounds has arisen due to a change in consumer preferences and the increase in the number of resistant microorganisms. Macroalgae play a special role in the pursuit of new active molecules as they have been traditionally consumed and are known for their chemical and nutritional composition and their biological properties, including antimicrobial activity. Among the bioactive molecules of algae, proteins and peptides, polysaccharides, polyphenols, polyunsaturated fatty acids and pigments can be highlighted. However, for the complete obtaining and incorporation of these molecules, it is essential to achieve easy, profitable and sustainable recovery of these compounds. For this purpose, novel liquid–liquid and solid–liquid extraction techniques have been studied, such as supercritical, ultrasound, microwave, enzymatic, high pressure, accelerated solvent and intensity pulsed electric fields extraction techniques. Moreover, different applications have been proposed for these compounds, such as preservatives in the food or cosmetic industries, as antibiotics in the pharmaceutical industry, as antibiofilm, antifouling, coating in active packaging, prebiotics or in nanoparticles. This review presents the main antimicrobial potential of macroalgae, their specific bioactive compounds and novel green extraction technologies to efficiently extract them, with emphasis on the antibacterial and antifungal data and their applications.

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Application of marine-derived polysaccharides as immunostimulants in aquaculture: A review of current knowledge and further perspectives

Cited by 117 publications

References 177 publications

Antibacterial and Antiviral Activities of Local Thai Green Macroalgae Crude Extracts in Pacific White Shrimp (Litopenaeus vannamei)

Antibacterial and Antiviral Activities of Local Thai Green Macroalgae Crude Extracts in Pacific White Shrimp (Litopenaeus vannamei)

Extraction and Physicochemical Characterization of Chitin Derived from the Asian Hornet, Vespa velutina Lepeletier 1836 (Hym.: Vespidae)

Macroalgae as a Source of Valuable Antimicrobial Compounds: Extraction and Applications

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