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Determination of Transfer Patterns of Pectobacterium carotovorum subsp. c arotovorum Planktonic Cells and Biofilms During Mechanical Cutting of Kimchi Cabbage
Author(s) -
Kang Miran,
Kim SuJi,
Yoon SoRa,
Lee HaeWon,
Lee Jae Yong,
Ha JiHyoung
Publication year - 2019
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/1750-3841.14749
Subject(s) - pectobacterium carotovorum , biofilm , brassica rapa , food science , botany , biology , chemistry , horticulture , mathematics , brassica , bacteria , genetics
Cross‐contamination of Pectobacterium carotovorum subsp. carotovorum (PCC) from a stainless‐steel surface to cabbage ( Brassica rapa L. subsp. pekinensis ) was evaluated. To investigate the PCC transfer pattern from mechanical knife surfaces to cabbage during 100 cuts, two mathematical models (power and logarithmic model) were fitted to the mean log 10 detection data from cabbage. Overall, regression analysis determined that the best‐fitting regression curves of planktonic cells and detached cells from biofilms transferred onto fresh cabbage were Y = 3.7X –0.41 , RMSE = 0.371 and Y = 4.6X –0.35 , RMSE = 0.254, respectively. For salted cabbage, the best‐fit regression curves of planktonic cells and biofilm were Y = 5.8X –0.38 , RMSE = 0.209 and Y = 5.4X –0.23 , RMSE = 0.195, respectively. Our data provide a meaningful indication of the level of PCC cross‐contamination.