Abstract:
:Present study is intended to assess the probiotic properties of Bacillus spp. isolated from idli batter, a traditional fermented food of Southern India and Sri Lanka. A total of 32 isolates were screened for potential pathogenic behaviour through haemolysis assay, DNase activity and antibiotics sensitivity. Two of the isolates were found to be potentially safe and identified as Bacillus spp. These strains were characterized for in vitro probiotic attributes and antioxidant activity. Both the strains showed strong acid and bile tolerance, transit tolerance, lysozyme tolerance, cell surface hydrophobicity, auto-aggregation, co-aggregation, biofilm formation potential and adhesion to human colon adenocarcinoma (HT 29) cell line demonstrating potential probiotic ability. These strains also exhibited considerable cholesterol binding, thermostability, β-galactosidase production, proteolytic, amylolytic and lipolytic activity. Cell-free supernatant inhibited the biofilm formation by Pseudomonas aeruginosa (KT266804) to 90%. Intact cells showed significant DPPH (41%), hydroxyl (31%), radical scavenging activity and lipid peroxidation inhibition (20.38%), while cell-free extracts exhibited significant superoxide anion radical scavenging activity (16.25%). Results revealed that isolates could be potential probiotic candidate after further assessment of in vivo probiotic properties and safety evaluation and could be utilised as starter cultures in functional foods.
journal_name
Probiotics Antimicrob Proteinsjournal_title
Probiotics and antimicrobial proteinsauthors
Shivangi S,Devi PB,Ragul K,Shetty PHdoi
10.1007/s12602-020-09650-xsubject
Has Abstractpub_date
2020-12-01 00:00:00pages
1502-1513issue
4eissn
1867-1306issn
1867-1314pii
10.1007/s12602-020-09650-xjournal_volume
12pub_type
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journal_title:Probiotics and antimicrobial proteins
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journal_title:Probiotics and antimicrobial proteins
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journal_title:Probiotics and antimicrobial proteins
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journal_title:Probiotics and antimicrobial proteins
pub_type: 杂志文章,评审
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journal_title:Probiotics and antimicrobial proteins
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journal_title:Probiotics and antimicrobial proteins
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journal_title:Probiotics and antimicrobial proteins
pub_type: 杂志文章,评审
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abstract::Microbial diseases in fish, plant, animal and human are rising constantly; thus, discovery of their antidote is imperative. The use of antibiotic in aquaculture further compounds the problem by development of resistance and consequent consumer health risk by bio-magnification. Antimicrobial peptides (AMPs) have been h...
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