Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling

Objective Cow urine possesses several bioactive properties but the responsible components behind these bioactivities are still far from identified. In our study, we tried to identify the possible components behind the antimicrobial activity of cow urine by exploring the peptidome and metabolome. Met...

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Main Authors: Rohit Kumar, Jai Kumar Kaushik, Ashok Kumar Mohanty, Sudarshan Kumar
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2023-07-01
Series:Animal Bioscience
Subjects:
Online Access:http://www.animbiosci.org/upload/pdf/ab-22-0249.pdf
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author Rohit Kumar
Jai Kumar Kaushik
Ashok Kumar Mohanty
Sudarshan Kumar
author_facet Rohit Kumar
Jai Kumar Kaushik
Ashok Kumar Mohanty
Sudarshan Kumar
author_sort Rohit Kumar
collection DOAJ
description Objective Cow urine possesses several bioactive properties but the responsible components behind these bioactivities are still far from identified. In our study, we tried to identify the possible components behind the antimicrobial activity of cow urine by exploring the peptidome and metabolome. Methods We extracted peptides from the urine of Sahiwal cows belonging to three different physiological states viz heifer, lactation, and pregnant, each group consisting of 10 different animals. The peptides were extracted using the solid phase extraction technique followed by further extraction using ethyl acetate. The antimicrobial activity of the aqueous extract was evaluated against different pathogenic strains like Staphylococcus aureus, Escherichia coli, and Streptococcus agalactiae. The safety of urinary aqueous extract was evaluated by hemolysis and cytotoxicity assay on the BuMEC cell line. The urinary peptides were further fractionated using high-performance liquid chromatography (HPLC) to identify the fraction(s) containing the antimicrobial activity. The HPLC fractions and ethyl acetate extract were analyzed using nLC-MS/MS for the identification of the peptides and metabolites. Results A total of three fractions were identified with antimicrobial activity, and nLC-MS/MS analysis of fractions resulted in the identification of 511 sequences. While 46 compounds were identified in the metabolite profiling of organic extract. The urinary aqueous extract showed significant activity against E. coli as compared to S. aureus and S. agalactiae and was relatively safe against mammalian cells. Conclusion The antimicrobial activity of cow urine is a consequence of the feeding habit. The metabolites of plant origin with several bioactivities are eliminated through urine and are responsible for their antimicrobial nature. Secondly, the plethora of peptides generated from the activity of endogenous proteases on protein shed from different parts of tissues also find their way to urine. Some of these sequences possess antimicrobial activity due to their amino acid composition.
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spelling doaj.art-a424391a5c5a4823a9d630209baab4b02023-07-05T04:51:53ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352023-07-013671130114210.5713/ab.22.024925004Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profilingRohit Kumar0Jai Kumar Kaushik1Ashok Kumar Mohanty2Sudarshan Kumar3 ICAR-National Dairy Research Institute, Cell Biology and Proteomics Lab, Animal Biotechnology Center (ABTC), Karnal, Haryana, 132001, India ICAR-National Dairy Research Institute, Cell Biology and Proteomics Lab, Animal Biotechnology Center (ABTC), Karnal, Haryana, 132001, India ICAR-National Dairy Research Institute, Cell Biology and Proteomics Lab, Animal Biotechnology Center (ABTC), Karnal, Haryana, 132001, India ICAR-National Dairy Research Institute, Cell Biology and Proteomics Lab, Animal Biotechnology Center (ABTC), Karnal, Haryana, 132001, IndiaObjective Cow urine possesses several bioactive properties but the responsible components behind these bioactivities are still far from identified. In our study, we tried to identify the possible components behind the antimicrobial activity of cow urine by exploring the peptidome and metabolome. Methods We extracted peptides from the urine of Sahiwal cows belonging to three different physiological states viz heifer, lactation, and pregnant, each group consisting of 10 different animals. The peptides were extracted using the solid phase extraction technique followed by further extraction using ethyl acetate. The antimicrobial activity of the aqueous extract was evaluated against different pathogenic strains like Staphylococcus aureus, Escherichia coli, and Streptococcus agalactiae. The safety of urinary aqueous extract was evaluated by hemolysis and cytotoxicity assay on the BuMEC cell line. The urinary peptides were further fractionated using high-performance liquid chromatography (HPLC) to identify the fraction(s) containing the antimicrobial activity. The HPLC fractions and ethyl acetate extract were analyzed using nLC-MS/MS for the identification of the peptides and metabolites. Results A total of three fractions were identified with antimicrobial activity, and nLC-MS/MS analysis of fractions resulted in the identification of 511 sequences. While 46 compounds were identified in the metabolite profiling of organic extract. The urinary aqueous extract showed significant activity against E. coli as compared to S. aureus and S. agalactiae and was relatively safe against mammalian cells. Conclusion The antimicrobial activity of cow urine is a consequence of the feeding habit. The metabolites of plant origin with several bioactivities are eliminated through urine and are responsible for their antimicrobial nature. Secondly, the plethora of peptides generated from the activity of endogenous proteases on protein shed from different parts of tissues also find their way to urine. Some of these sequences possess antimicrobial activity due to their amino acid composition.http://www.animbiosci.org/upload/pdf/ab-22-0249.pdfantimicrobial peptidescow urinemass spectrometrymetabolitessolid-phase extraction
spellingShingle Rohit Kumar
Jai Kumar Kaushik
Ashok Kumar Mohanty
Sudarshan Kumar
Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
Animal Bioscience
antimicrobial peptides
cow urine
mass spectrometry
metabolites
solid-phase extraction
title Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
title_full Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
title_fullStr Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
title_full_unstemmed Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
title_short Identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
title_sort identification of bioactive components behind the antimicrobial activity of cow urine by peptide and metabolite profiling
topic antimicrobial peptides
cow urine
mass spectrometry
metabolites
solid-phase extraction
url http://www.animbiosci.org/upload/pdf/ab-22-0249.pdf
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AT ashokkumarmohanty identificationofbioactivecomponentsbehindtheantimicrobialactivityofcowurinebypeptideandmetaboliteprofiling
AT sudarshankumar identificationofbioactivecomponentsbehindtheantimicrobialactivityofcowurinebypeptideandmetaboliteprofiling