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A Simple Method to Screen Fruit Juices and Concentrates for Heat-Resistant Mold

D I Murdock1, W S Hatcher1

  • 1The Coca-Cola Company Foods Division, P.O. Box 368, Plymouth, Florida 32768.

Journal of Food Protection
|February 24, 2019
PubMed

Insights

A straightforward method detects heat-resistant mold in fruit juices and concentrates. This simple screening test involves heating samples and incubating them to identify mold contamination.

Area of Science:

  • Food microbiology
  • Food safety testing

Background:

  • Heat-resistant molds can contaminate fruit juices and concentrates.
  • Effective screening methods are crucial for ensuring product quality and safety.

Purpose of the Study:

  • To develop and describe a simple screening test for detecting heat-resistant mold in fruit juice products.
  • To investigate various plating and liquid media for enumerating heat-resistant mold.

Main Methods:

  • A simple screening test was developed for fruit juices, juice concentrates, and suspected juice products.
  • Product samples in bottles were heated to 77°C.
  • Plates and remaining bottle contents were incubated at 30°C for up to 30 days.
  • Several plating and liquid media were evaluated for mold enumeration.

Main Results:

  • The described method allows for the screening of juice products for heat-resistant mold.
  • Incubation periods of up to 30 days at 30°C were employed.
  • Different media were investigated for their efficacy in enumerating mold.

Conclusions:

  • A simple and effective screening test for heat-resistant mold in fruit juice products has been established.
  • The study explored various methods for mold enumeration, contributing to food safety protocols.

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