Uneven distribution of microorganisms on the surface of field-grown cantaloupes

Dobhal, Shefali; Zhang, Guodong; Gautam, Dhiraj; Fletcher, Jacqueline; Ma, Li

doi:10.1016/j.foodcont.2014.07.002

Cited by 5 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, a number of foodborne illnesses have been associated with fresh and fresh‐cut produce in the last decade. Among pathogen outbreaks with various produce, cantaloupes may have suffered the most, which include Listeria monocytogenes (LM) and Salmonella outbreak (Upadhyay and others ; Dobhal and others ). There is a great need to mitigate the pathogen load with fresh and fresh‐cut produce such as cantaloupe.…”

Section: Introductionmentioning

confidence: 99%

Emulsion Stabilized with Starch Octenyl Succinate Prolongs Nisin Activity Against Listeria Monocytogenes in a Cantaloupe Juice Model

Sarkar

Bhunia

Yao

2016

Journal of Food Science

View full text Add to dashboard Cite

Food safety related to fresh and fresh-cut produce, such as cantaloupe, is a great challenge in the food industry. Various processing technologies, including the use of antimicrobial materials, have been applied to reduce pathogens. Nisin, an antimicrobial peptide, shows strong inhibitory activity against Listeria monocytogenes (LM); however, it suffers from quick depletion in foods. In this study, the protective effect of starch octenyl succinate (starch-OS) stabilized emulsion on nisin was evaluated in a cantaloupe juice model. Results showed that the proteolytic enzyme in cantaloupe juice caused nisin depletion, and the adsorption of nisin in emulsion led to considerable protection of antimicrobial activity. After 1, 3, and 6 d of incorporation with cantaloupe juice, the size of LM inhibitory ring were 7.64, 7.60, and 2.97 mm, respectively for emulsion formulations, whereas it reduced from 3.60 mm to a negligible level for nisin-alone. This study showed the potential of using carbohydrate colloidal systems to prolong the efficacy of antimicrobial materials.

show abstract

Section: Introductionmentioning

confidence: 99%