Thermal death evaluation of multi-strains probiotic inoculant for shelf-life prediction
This study aimed to determine the thermal death kinetic of Lactobacillus plantarum 7-40, Bacillus subtilis E20, and Saccharomyces cerevisiae P13 contained in probiotic product and to study the relation of specific death rate (kd) and temperature following the Arrhenius equation for shelf-life predic...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2019
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| Online Access: | http://journalarticle.ukm.my/14723/1/48_04_19.pdf http://journalarticle.ukm.my/14723/ http://www.mabjournal.com/index.php?option=com_content&view=article&id=946&catid=59:current-view&Itemid=56 |
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| Summary: | This study aimed to determine the thermal death kinetic of Lactobacillus plantarum 7-40, Bacillus subtilis E20, and Saccharomyces cerevisiae P13 contained in probiotic product and to study the relation of specific death rate (kd) and temperature following the Arrhenius equation for shelf-life prediction. The result showed that the viability of probiotic strains was
differently affected by storage temperature. The B. subtilis E20 could survival more than L. plantarum 7-40 and S. cerevisiae
P13 under high storage temperature. It was also found that the lowest kd was provided by B. subtilis. This result demonstrated
that the B. subtilis was more stable than L. plantarum and S. cerevisiae during keeping under high-temperature warehouse.
Thereby, the storage temperature of the multi-strains probiotics inoculant should be considered carefully. Also, the natural
logarithm of kd was well related to the storage temperature as the Arrhenius equation. The Arrhenius model could be applied
for predicting the shelf-life of probiotic inoculant as well. This study could be used for managing the stock of a multi-strains
probiotic product in the high-temperature warehouse. |
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