Ingredient Contribution in Extruded Product - Carbohydrate Sources
Ingredients Contribution in Extruded Products - Carbohydrate Sources
In extrusion, the primary form of carbohydrate that has a prominent
effect on the texture of the extrudate is the starch. This starch
exists in many of the cereal grains or tuber's roots. Starch exists in
two forms, amylose and amylopectin. Starch from every source will
differ in the percentages of amylose vs amylopectin and the granule
size. The other form of carbohydrate is cellulose, which has less
effect during extrusion.
During extrusion, the combination of moisture, heat,
pressure, and mechanical shear will change the physicochemical
properties of the starch and therefore generate cooking, changes in
viscosity, expansion, breakdown of starch molecules, and the formation
of bubbles in the extrudates.
In the table below, I have listed some carbohydrate-source ingredients and their effect on the extrusion process.
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Barley
![]() Source: https://www.greatbritishchefs.com/ingredients/pearl-barley-recipes |
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Beet Pulp
![]() Source: https://ovc.uoguelph.ca/ruminant_health_management/beet-pulp |
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Cassava
![]() Source: https://foodandnutrition.org/from-the-magazine/how-is-cassava-flour-made-and-used/ |
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Coconut meal
![]() Source: https://www.alibaba.com/product-detail/Copra-cake-Copra-meal-Coconut-copra_50037979827.html |
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Corn
![]() Source: https://www.forestwholefoods.co.uk/product/organic-popping-corn/ |
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Molasses
![]() Source: https://zh.wikipedia.org/wiki/糖蜜 |
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Potato Starch or Flour
![]() Source: https://www.mashed.com/460790/best-substitutes-for-potato-starch/ |
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Rice
![]() Source: https://www.maangchi.com/ingredient/short-grain-rice |
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Rice bran
![]() Source: https://www.feedstrategy.com/poultry-nutrition/stabilized-rice-bran-for-poultry-feeding/ |
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Sorghum
![]() Source: https://www.foodnetwork.com/healthyeats/healthy-tips/2015/03/the-latest-hot-crop-sorghum |
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Wheat Bran
![]() Source: https://www.thriftyfun.com/Substitutes-for-Wheat-Bran-in-Recipes.html |
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Wheat flour
![]() Source: https://www.spiceography.com/wheat-flour-substitute/ |
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