Exploring the optimized strategy for 5-hydroxymethyl-2-furancarboxylic acid production from agriculture wastes using Pseudomonas aeruginosa PC-1

Five strains of Lactococcus, including L. garviae K2, L. piscium SU4, L. lactis subsp. cremoris E22, L. plantarum L7 and L. lactis subsp. hordinae E91 were screened for production of antimicrobial agents. The strains were also analysed for antimicrobial activities against spoilage and pathogenic organisms, including Staphylococcus aureus, Salmonella Typhimurium, Escherichia coli, Yersinia enterocolitica, Pseudomonas aeruginosa, Klebsiella pneumoniae, Listeria monocytogenes, Bacillus cereus and Pseudomonas fluorescens. Result revealed that L. piscium SU4, L. plantarum L7 and L. lactis subsp. cremoris E22 had lactic acid production (g/107 colony forming units, CFU) of 7.23, 7.20 and 7.19. The value of 6.83 recorded as lactic acid produced by L. garviae K2 was significantly different from those obtained for others. The highest acetic acid production (3.55 g/107 CFU) was recorded for L. garviae K2 while L. piscium SU4 had the lowest (2.99 g/107 CFU). L. lactis subsp. hordinae E91 had diacetyl production of 71.99 (µg/107 CFU), which was higher than those recorded for other Lactococcus strains. Test for antimicrobial activities showed that Escherichia coli NCTC 86, Yersinia enterocolitica NCTC 10460, Pseudomonas aeruginosa NCIMB 10848, Bacillus cereus NCTC 21113 and Pseudomonas flourescens recorded higher susceptibilities to the antimicrobial action of the Lactococcus strains than others; zones of inhibition of 5 mm and above were recorded for the indicator organisms compared to lower values (

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Medium optimization of L(+)-lactic acid production by Genome shuffled Lactobacillus rhamonsus Lc-F34 from agriculture wastes using statistical tools

Resources, Environment and Engineering ◽

10.1201/b17389-61 ◽

2014 ◽

pp. 369-376 ◽

Cited By ~ 2

Keyword(s):

Lactic Acid ◽

Acid Production ◽

Medium Optimization ◽

Lactic Acid Production ◽

Statistical Tools ◽

Agriculture Wastes

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THE PSEUDOMONAS–ACHROMOBACTER GROUP

Canadian Journal of Microbiology ◽

10.1139/m60-006 ◽

1960 ◽

Vol 6 (1) ◽

pp. 35-42 ◽

Cited By ~ 8

Author(s):

Harold B. Moore ◽

M. J. Pickett

Keyword(s):

Pseudomonas Aeruginosa ◽

Nitrate Reduction ◽

Acid Production ◽

Molecular Nitrogen ◽

Detailed Examination ◽

Gaseous Nitrogen ◽

Nitrate Medium ◽

Gram Negative ◽

Litmus Milk ◽

Produce Acid

Fifty-three strains of nonpigmented Gram-negative rods which failed to produce acid in Kligler's iron agar were studied. Detailed examination revealed that many strains had been incorrectly identified as Alcaligenes. Sixteen strains were identified as Pseudomonas aeruginosa, and it was concluded that important identifying characteristics of this species are: (1) acid production from glucose, arabinose, and xylose, but not from lactose; (2) the ability to liquefy gelatin; (3) good motility and production of gaseous nitrogen in a motility–nitrate medium; and (4) a positive gluconate test. Thirty-seven strains appeared to be members of the genus Achromobacter and all produced acid from one or more carbohydrates. These strains were divided into three groups on the basis of (1) activity on gelatin, (2) nitrate reduction, and (3) motility. Some strains resembled Pseudomonas aeruginosa in such characteristics as reduction of nitrate to molecular nitrogen and oxidation of gluconate to 2-ketogluconate, but differed in that they neither liquefied gelatin nor peptonized and reduced litmus milk. More important, they had peritrichous flagella.

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