期刊
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
卷 107, 期 2, 页码 180-185出版社
ELSEVIER
DOI: 10.1016/j.ijfoodmicro.2005.07.007
关键词
cinnamon oil; clove oil; active packaging; modified atmosphere; intermediate moisture foods
Mixtures of cinnamon and clove oils were tested for inhibitory activity against important spoilage microorganism of intermediate moisture foods. Four fungal species (Aspergillus flavus, Penicillium roqueforti, Mucor plumbeus and Eurotium sp.), four yeasts species (Debaryomyces hansenii, Pichia membranaefaciens, Zygosaccharomyces rouxii and Candida lipolytica), and two bacteria species (Staphylococcus aureus and Pediococcus halophilus) inoculated separately on agar plates were sealed in a barrier pouch and exposed to essential oil volatiles under a modified at mosphere of low O-2 (< 0.05-10%) and high CO2 (20% or 40%), with the balance being N-2. A. flavus and Eurotium sp. proved to be the most resistant microorganisms. Cinnamon and clove oils added between 1000 and 4000 mu L at a ratio of 1:1 were tested for minimum inhibitory volume (MIV) against molds and yeasts. The gas phase above 1000 mu L of the oil mixture inhibited growth of C lipolytica and R membranaefaciens; 2000 mu L inhibited growth of A. flavus, R roqueforti, M. plumbeus, Eurotium sp., D. hansenii, and Z rouxii, while inhibition of A. flavus required the addition of 4000 mu L. Higher ratios of cinnamon oil/clove oil were more effective for inhibiting the growth of A. flavus. (c) 2005 Elsevier B.V. All rights reserved.
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