| Probiotics and their Ability to Produce Different Extracellular Enzymes in Aquaculture |
| Paper ID : 1055-ICIAQUA |
| Authors |
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GHASEM ASHOURI *1, Roberta Imperatore2, Seyed Hossein Hoseinifar3, Seyed Amir Hossein Jalali4, Forouzan Bagherzadeh Lakani5, Hamideh Zakariae6 1Department of Sciences and Technologies, University of Sannio, Via De Sanctis, snc, 82100 Benevento, Italy 2Department of Scinces and Technologies University of Sannio Benevento, Italy 3Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran 4Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156–83111, Iran 5Department of Fish Health and Disease, International Sturgeon Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Rasht, Guilan, Iran 6Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, 15759-49138, Iran |
| Abstract |
| Purpose: Probiotics, live microbes that may serve as dietary supplements to improve fish growth and enhance immune responses, have received attention in aquaculture. However, information regarding their exoenzyme-producing capacity is limited. Therefore, this review briefly explores the enzymatic properties of probiotics. Method: This study involved the enzymatic characterization of select bacterial strains exhibiting probiotic properties. Results: Numerous studies have demonstrated that probiotics can enhance host digestive function by secreting exogenous digestive enzymes such as protease, lipase, amylase, cellulase, and chitinase. Moreover, they provide essential growth factors and vitamins such as B1 and B12. The extracellular enzyme-producing ability of the various Bacillus spp. isolated from the gastrointestinal tract of different freshwater and marine fish species has been widely documented. These enzymes were found largely diversified in their enzymatic properties and substrate specificities. Conclusions: Probiotic bacteria strains producing hydrolytic exoenzymes are of great importance considering their contribution to the host metabolism. It is concluded that the potential extracellular enzyme properties of probiotics enhance nutrient digestibility, making them promising candidates for improving fish health and growth. |
| Keywords |
| chitinase, digestive function, exoenzyme, probiotic, protease |
| Status: Abstract Accepted (Poster Presentation) |