Effect of temperature and soluble solid on Bacillus subtilis and Bacillus licheniformis spore inactivation and quality degradation of pineapple juice

Bacillus subtilis and Bacillus licheniformis spores can survive processing temperatures used in the thermal processes of high-acid foods. Therefore, this study investigated the thermal inactivation of B. subtilis and B. licheniformis spores in pineapple juice at different temperatures (85-100°C) and...

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Veröffentlicht in:Food science and technology international = Ciencia y tecnologia de los alimentos internacional. - 1998. - 28(2022), 4 vom: 09. Apr., Seite 285-296
1. Verfasser: Evelyn (VerfasserIn)
Weitere Verfasser: Utami, Syelvia Putri, Chairul
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Food science and technology international = Ciencia y tecnologia de los alimentos internacional
Schlagworte:Journal Article Bacterial spores food safety and quality fruit juices kinetics thermal processing
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520 |a Bacillus subtilis and Bacillus licheniformis spores can survive processing temperatures used in the thermal processes of high-acid foods. Therefore, this study investigated the thermal inactivation of B. subtilis and B. licheniformis spores in pineapple juice at different temperatures (85-100°C) and soluble solids (SS, 11-30°Brix). The quality of juices and microbial loads after the thermal treatments during storage at 4 °C for 35 days was then checked. A linear decrease in D-value was observed with increasing temperature of treatment. Furthermore, the D-values determined in pineapple juice were: D90°C=13.2 ± 0.5 mins, D95°C = 6.8 ± 0.9 mins and D100°C = 2.1 ± 1.7 mins for B. subtilis spores, and D85°C = 16.6 ± 0.4 mins, D90°C = 7.6 ± 0.5 mins and D95°C = 3.6 ± 1.5 min, for B. licheniformis. Generally, the susceptibility of the bacteria to soluble solid change was affected by the interaction between temperature, SS and strain. In addition, pasteurization processes of ≥95°C for ≥33.8 mins was needed to ensure a recommended 5-log reduction of B. subtilis spores and limit vitamin C degradation of pineapple juice within three-week of storage at 4 °C 
650 4 |a Journal Article 
650 4 |a Bacterial spores 
650 4 |a food safety and quality 
650 4 |a fruit juices 
650 4 |a kinetics 
650 4 |a thermal processing 
700 1 |a Utami, Syelvia Putri  |e verfasserin  |4 aut 
700 1 |a Chairul  |e verfasserin  |4 aut 
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