

Physical Analysis of Food
Flashcard
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Other
•
University
•
Practice Problem
•
Hard
RENATA SILVA
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30 questions
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1.
FLASHCARD QUESTION
Front
Definição de pH
Back
Concentração potencial de íons de hidrogênio, definida como o logaritmo negativo da concentração de íons de hidrogênio em uma solução.
2.
FLASHCARD QUESTION
Front
faixa de escala de pH
Back
Varia de 0 a 14, indicando a acidez ou alcalinidade de uma solução.
3.
FLASHCARD QUESTION
Front
fórmula de pH
Back
pH = -log [H+]
4.
FLASHCARD QUESTION
Front
Métodos elétricos para medição de pH
Back
Métodos elétricos são mais precisos para medir pH.
5.
FLASHCARD QUESTION
Front
Deterioração dos alimentos com o crescimento de microrganismos
Back
Os microrganismos podem causar a deterioração e o apodrecimento dos alimentos.
6.
FLASHCARD QUESTION
Front
pH < 4.5 indica alimentos ácidos que requerem tratamento térmico mais suave (pasteurização)
Back
Alimentos ácidos precisam de tratamento térmico menos intenso.
7.
FLASHCARD QUESTION
Front
Medidor de pH (potenciômetro): Equipamento usado para medir pH em alimentos. Consiste em eletrodos (referência, medição e combinado) e um galvanômetro conectado a uma escala de pH (entre 1 e 14).
Back
Usado para medir acidez ou alcalinidade em várias soluções.
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