Soy Flashcards

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1
Q

what can soy protein be used as?

A

an imitation meat product

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2
Q

what is the soy protein composition

A

90% of proteins are for storage

Beta- conglycinin

  • glycoprotein with 3 subunits (alpha, beta, alpha-prime)
  • forms transparent, soft, elastic gels

Glycinin

  • a hexamer with numbered subunits (1a, 1b, 2, 3, 4, 5) that are linked via disulfide bonds
  • form hard gels
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3
Q

what is soy protein isolate

A

the most refined type of protein made by solubilising defatted soy flakes and precipitating them with acid at the isoelectric point, and then separating the proteins from the flake and spray drying

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4
Q

what are the functional properties of soy protein

A

high water holding capacity
- good binding properties

gelation
- uses in meat, soup, baking

emulsification
- fat binding

texturisation
- meat extenders and replacers

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5
Q

what are the uses of soy flour

A

browning
freshness
tendering

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6
Q

what are the uses of soy concentrate

A

fat and water binding
protein fortification
moisture retention

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7
Q

what are the uses of soy isolate

A

infant formula
protein enrichment
water retention
protein source

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