Development and evaluation of a fish feed mixture containing the probiotic Lactiplantibacillus plantarum prepared using an innovative pellet coating method

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14160%2F23%3A00131262" target="_blank" >RIV/00216224:14160/23:00131262 - isvavai.cz</a>

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fvets.2023.1196884/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fvets.2023.1196884/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fvets.2023.1196884" target="_blank" >10.3389/fvets.2023.1196884</a>

Result language

angličtina

Original language name

Development and evaluation of a fish feed mixture containing the probiotic Lactiplantibacillus plantarum prepared using an innovative pellet coating method

Original language description

IntroductionDue to the intensification of fish farming and the associated spread of antimicrobial resistance among animals and humans, it is necessary to discover new alternatives in the therapy and prophylaxis of diseases. Probiotics appear to be promising candidates because of their ability to stimulate immune responses and suppress the growth of pathogens. MethodsThe aim of this study was to prepare fish feed mixtures with various compositions and, based on their physical characteristics (sphericity, flow rate, density, hardness, friability, and loss on drying), choose the most suitable one for coating with the selected probiotic strain Lactobacillus plantarum R2 Biocenol &amp; TRADE; CCM 8674 (new nom. Lactiplantibacillus plantarum). The probiotic strain was examined through sequence analysis for the presence of plantaricin- related genes. An invented coating technology based on a dry coating with colloidal silica followed by starch hydrogel containing L. plantarum was applied to pellets and tested for the viability of probiotics during an 11-month period at different temperatures (4 &amp; DEG;C and 22 &amp; DEG;C). The release kinetics of probiotics in artificial gastric juice and in water (pH = 2 and pH = 7) were also determined. Chemical and nutritional analyses were conducted for comparison of the quality of the control and coated pellets. Results and discussionThe results showed a gradual and sufficient release of probiotics for a 24-hour period, from 10(4) CFU at 10 mi up to 10(6) at the end of measurement in both environments. The number of living probiotic bacteria was stable during the whole storage period at 4 &amp; DEG;C (10(8)), and no significant decrease in living probiotic bacteria was observed. Sanger sequencing revealed the presence of plantaricin A and plantaricin EF. Chemical analysis revealed an increase in multiple nutrients compared to the uncoated cores. These findings disclose that the invented coating method with a selected probiotic strain improved nutrient composition and did not worsen any of the physical characteristics of pellets. Applied probiotics are also gradually released into the environment and have a high survival rate when stored at 4 &amp; DEG;C for a long period of time. The outputs of this study confirm the potential of prepared and tested probiotic fish mixtures for future use in in vivo experiments and in fish farms for the prevention of infectious diseases.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30104 - Pharmacology and pharmacy

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Veterinary Science

ISSN

2297-1769

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

June

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

1-14

UT code for WoS article

001016104700001

EID of the result in the Scopus database

2-s2.0-85163587994