Aerated food products
An aerated food product is provided which includes Volvariella volvacea extract. Also provided is the use of a Volvariella volvacea extract in a method of inhibiting bubble coarsening in aerated food products.
1. An aerated food product comprising at least 0.001 wt % Volvariella volvacea fruiting body protein extract and
an emulsion or a foam comprising a volume average diameter of less than about 0.5 μm;
wherein said extract stabilizes the volume average diameter of the emulsion or the foam in the aerated food product.
2. The aerated food product of claim 1 comprising at least 0.01 wt % Volvariella volvacea fruiting body protein extract.
3. The aerated food product of claim 1 comprising at least 0.005 wt % Volvariella volvacea fruiting body protein extract.
4. The aerated food product of claim 1 , wherein the Volvariella volvacea fruiting body protein extract is prepared by:
Freeze drying the Volvariella volvacea fruiting body then grinding;
Rehydrating the ground Volvariella volvacea fruiting body in a buffer;
Clarifying soluble material by centrifugation;
Salting out soluble extracts;
Centrifuging precipitates to form pellets and then solubilising the pellets in distilled water;
Dialysing soluble protein; and
Freeze drying the dialysed material to provide the Volvariella volvacea fruiting body protein extract.
5. The aerated food product of claim 1 , wherein the aerated food product is a frozen food product.
6. The aerated food product of claim 1 , wherein the aerated food product is a chilled food product.
7. The aerated food product of claim 1 , wherein the aerated food product is an aerated confectionery product.
8. A method of preparing an aerated food product comprising adding sufficient Volvariella volvacea fruiting body protein extract to the food product prior to and/or during aeration of the food product to form an emulsion or a foam comprising a volume average diameter of less than about 0.5 μm; wherein at least 0.001 wt % Volvariella volvacea fruiting body extract is added to the food product, and said extract stabilizes the volume average diameter of the emulsion or the foam in the aerated food product.
9. The aerated food product of claim 1 comprising 0.001 wt % to less than 1 wt % Volvariella volvacea fruiting body protein extract.
10. The aerated food product of claim 1 , wherein the extract inhibits bubble coarsening in the aerated food product; improves shape retention, and/or improves rigidity in the aerated food product.