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Search: id:"swepub:oai:lup.lub.lu.se:6b6d18bc-0f01-49b0-b869-edc5d45b4331" > Use of bacterial st...

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  • Uhlig, E.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH (author)

Use of bacterial strains antagonistic to Escherichia coli for biocontrol of spinach : A field trial

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • Elsevier BV,2021

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:6b6d18bc-0f01-49b0-b869-edc5d45b4331
  • https://lup.lub.lu.se/record/6b6d18bc-0f01-49b0-b869-edc5d45b4331URI
  • https://doi.org/10.1016/j.ifset.2021.102862DOI
  • https://res.slu.se/id/publ/114437URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • To counteract global food safety hazards related to raw consumption of ready-to-eat leafy vegetables, a method to improve bacterial status using antagonistic bacteria was studied under field conditions. This is the first study to identify potential Escherichia coli antagonists from the native microbiota on leafy green vegetables and evaluate their effect in an industrial field production setting. Bacterial strains were isolated from different types of leafy green vegetables and selected upon their effect against E. coli in vitro, and out of 295 tested bacterial strains, 37 showed an antagonistic effect. Four of those antagonistic strains were coated in separate treatments onto spinach seeds and planted in the field. Both seeds and plants were analyzed by Illumina MiSeq next generation sequencing (NGS), and it was seen that the microbiota of the plants contained lower relative abundance of plant and human pathogenic genera. Higher β-diversity was observed for the samples treated with Bacillus coagulans LMG P-32205 and B. coagulans LMG P-32206 compared to control, indicating that those strains have induced substantial changes in the native microbiota of the leaves. A reduction of Escherichia-Shigella was seen for two of the isolates (Pseudomonas cedrina LMG P-32207 and Pseudomonas punonenis LMG P-32204) as the seeds developed into plants. Seeds inoculated with two of the strains (B. coagulans LMG P-32205 and B. coagulans LMG P-32206) had increased levels of Lactobacillaceae, and treatment with B. coagulans LMG P-32206 resulted in lower levels of Pantoea (from 31.4 to 12.2%). These results encourage the usage of bacterial antagonists as part of a global solution to reduce the risk of human pathogens on leafy green vegetables.

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  • Kjellström, A.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)an3112kj (author)
  • Nurminen, N.Lund University (author)
  • Olsson, C.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)cr8370ol (author)
  • Oscarsson, E.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)el7430os (author)
  • Canaviri-Paz, P.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)pa4068ca (author)
  • Mogren, LarsSveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Biosystem och teknologi,Department of Biosystems and Technology(Swepub:slu)49049 (author)
  • Alsanius, BeatrixSveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Biosystem och teknologi,Department of Biosystems and Technology(Swepub:slu)49831 (author)
  • Molin, G.Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)livt-gmo (author)
  • Avdelningen för livsmedel och läkemedelInstitutionen för processteknik och tillämpad biovetenskap (creator_code:org_t)
  • Sveriges lantbruksuniversitet

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  • In:Innovative Food Science and Emerging Technologies: Elsevier BV741466-8564

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