skip to main content
Idioma:

Inactivation of Byssochlamys nivea ascospores in strawberry puree by high pressure, power ultrasound and thermal processing

Evelyn ; Silva, F.V.M.

International journal of food microbiology, 2015-12, Vol.214, p.129-136 [Periódico revisado por pares]

Netherlands: Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    Inactivation of Byssochlamys nivea ascospores in strawberry puree by high pressure, power ultrasound and thermal processing
  • Autor: Evelyn ; Silva, F.V.M.
  • Assuntos: Byssochlamys - growth & development ; Cold Temperature ; Fragaria - microbiology ; Fruit - microbiology ; Fungi ; Heat ; High hydrostatic pressure ; High-Energy Shock Waves ; Hot Temperature ; Modeling ; Mold ; Pasteurization - methods ; Pressure ; Sonication - methods ; Spores, Fungal - growth & development ; Thermosonication ; Ultrasonics
  • É parte de: International journal of food microbiology, 2015-12, Vol.214, p.129-136
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Byssochlamys nivea is a mold that can spoil processed fruit products and produce mycotoxins. In this work, high pressure processing (HPP, 600MPa) and power ultrasound (24kHz, 0.33W/mL; TS) in combination with 75°C for the inactivation of four week old B. nivea ascospores in strawberry puree for up to 30min was investigated and compared with 75°C thermal processing alone. TS and thermal processing can activate the mold ascospores, but HPP–75°C resulted in 2.0 log reductions after a 20min process. For a 10min process, HPP–75°C was better than 85°C alone in reducing B. nivea spores (1.4 vs. 0.2 log reduction), demonstrating that a lower temperature in combination with HPP is more effective for spore inactivation than heat alone at a higher temperature. The ascospore inactivation by HPP–thermal, TS and thermal processing was studied at different temperatures and modeled. Faster inactivation was achieved at higher temperatures for all the technologies tested, indicating the significant role of temperature in spore inactivation, alone or combined with other physical processes. The Weibull model described the spore inactivation by 600MPa HPP–thermal (38, 50, 60, 75°C) and thermal (85, 90°C) processing, whereas the Lorentzian model was more appropriate for TS treatment (65, 70, 75°C). The models obtained provide a useful tool to design and predict pasteurization processes targeting B. nivea ascospores. •HPP–thermal was the best method for Byssochlamys nivea spore inactivation in strawberry puree.•Higher HPP/TS/thermal temperature caused higher mold ascospore inactivation.•The Weibull model was appropriate for HPP–thermal and thermal inactivation of mold spore.•The Lorentzian equation modeled the TS inactivation of B. nivea ascospores in strawberry puree.
  • Editor: Netherlands: Elsevier B.V
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.