Panel Información

Utilizamos cookies propias y de terceros para mejorar tu experiencia de navegación. Al continuar con la navegación entendemos que aceptas nuestra política de cookies.

¿Qué puedo hacer?

94433 materialEducativo

textoFiltroFicha
  • Me gusta 0
  • Visitas 31
  • Comentarios 0
  • Guardar en
  • Acciones

Acerca de este recurso...

Have you ever bitten into an apple, set it down for a few moments, and found that it has turned brown? This is caused by an enzyme (polyphenol oxidase and catechol oxidase are two common examples) that reacts with oxygen in the air and an iron or copper cofactor in the fruit. A cofactor is a component that is necessary for a certain enzymatic reactions to happen. The fruit starts to oxidize, when electrons are lost to another molecule (in this case the air), and the food turns brown. In other words, it’s like edible rust on your food!Oxidation can be prevented or slowed down by not allowing oxygen to get to the surface of the fruit. To accomplish this, you can cook the food, which destroys the enzyme. It is also possible to prevent browning without cooking by covering the fruit (preventing air from reaching the fruit), or by lowering the pH on the surface, making it more acidic.Which liquid do you think will prevent the food from turning brown the best? Why?

It is an educational content by education.com.
By clicking on the title of this resource, you will be redirected to the content. If you want to download the project, you just have to join the website, which now is for FREE.

Autores:

Fecha publicación: 12.5.2016

Se respeta la licencia original del recurso.

Comentar

0

¿Quieres comentar? Regístrate o inicia sesión

Únete a Didactalia

Navega entre 94433 recursos y 292509 usuarios

Regístrate >

O conéctate a través de:

Si ya eres usuario, Inicia sesión

¿Quieres acceder a más contenidos educativos?

Regístrate Acceso usuarios
Añadir a Didactalia
ayudaDelJuego
Juegos de anatomía
Selecciona nivel educativo
    Mapas

    CARGANDO...

    Ir a Mapas
    Un museo virtual con más de 17.000 obras de arte

    CARGANDO...

    Ir a Mis Museos
    Biblioteca

    CARGANDO...

    Ir a BNEscolar
    EduBlogs

    CARGANDO...

    Ir a Edublogs
    Odite

    CARGANDO...

    Ir a Odite
    Con la tecnología GNOSS