Incorporating fermented by-products of Lactobacillus diolivorans in food grade coatings designed for inhibition of Tyrophagus putrescentiae on dry-cured hams

H. A. Portillo,Md Shamim Howlader,Y. Campbell,T. French,Taejo Kim,J. Goddard,E. Hassan,M. Schilling

Published 2018 in Journal of Stored Products Research

ABSTRACT

Abstract Distillate solutions that were derived from concentrated ferment of Lactobacillus diolivorans were incorporated into either a carrageenan (CG) and propylene glycol alginate (PGA) gum blend or into a CG, PGA, and xanthan gum (XG) blend. Fermented distillate was produced in a model system to mimic fermentation in food grade coatings to produce 1, 3 propanediol, acetic acid, and lactic acid. Distillate treatments were compared against a 10% propylene glycol treatment, a gum only control, and negative control on 2.5 × 2.5 × 2.5 cm cubes (n = 50) that were dipped into solutions prior to conducting mite bioassays. Coated and control ham cubes were inoculated with 20 adult T. putrescentiae (Schrank), and incubated for 2 and 3 weeks. The distilled treatments with CG + PGA + XG had a 20 fold or greater reduction (P

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