Textured Soy Protein Reference Guide
Textured soy protein (TSP) is made wholly from either defatted soy meal flakes or soy protein concentrate. TSP is used in a wide variety of foods, for example, as an ingredient with ground meat for patties, sausage, and meat loaf; and in vegetarian foods and stews. This product can also be fortified with various micronutrients and minerals.
It is available in as either a mince/crumble or chunk form. The former is similar in texture to ground beef, while the chunks resemble cubed meat used in stews. It is a dry product, easily rehydrated and takes no additional cooking time when used as an ingredient in another dish.
1. Nutritional Values
Macronutrient and micronutrient data per 100 grams of uncooked TSP:
| Nutrient | Amount per 100 grams | Unit |
| Moisture | 9 | g |
| Protein (N x 6.25) moisture-free basis | 52 | g |
| Ash | 6 | g |
| Fat (petroleum ether) | 1 | g |
| Fat (acid hydrolysis) | 3 | g |
| Crude fiber | 4 | g |
| Total dietary fiber | 18 | g |
| Total carbohydrates | 30 | g |
| Energy | 270 | Kcals |
| Vitamins | ||
| Vitamin A | trace | IU |
| Vitamin C | 0 | mg |
| Thiamine | 0.62 | mg |
| Niacin | 2.6 | mg |
| Vitamin D | trace | IU |
| Vitamin E | trace | IU |
| Vitamin B6 | 0.50 | mg |
| Vitamin B12 | trace | mg |
| Folic acid | 0.30 | mg |
| Biotin | 0.07 | mg |
| Pantothenic acid | 2.1 | mg |
| Riboflavin | 0.31 | mg |
| Minerals | ||
| Sodium | 15 | mg |
| Potassium | 2400 | mg |
| Phosphorus | 730 | mg |
| Calcium | 320 | mg |
| Magnesium | 300 | mg |
| Iron | 10 | mg |
| Zinc | 5 | mg |
| Iodine | 0.84 | ppm |
2. Components
100% defatted soy flour
3. Specifications
Chemical and physical requirements are:
| Item | Minimum | Maximum |
| Protein (N x 6.25), % As is | 50 | |
| Moisture, % | 10.0 | |
| Fat, %, (petroleum ether) | 3.0 | |
| Crude Fiber, % | 4.0 | |
| Ash, % | 6.5 | |
| PDCAAS | 0.90 | |
| Carbohydrates (by difference) | 20.0 | |
| Standard plate count | 50,000/gm | |
| Salmonella | Negative | |
| E. Coli | Negative | |
| Granule size | May vary from 1/16 inch to ΒΌ inch | |
4. Packaging
TSP is shipped in 50-lb, multi-wall poly-lined paper bags. Smaller packages of 25-lb are also available. The minimum shelf life of TSP is one year. Manufacturers report that adverse conditions, such as elevated storage temperature and high humidity, do not seriously reduce the shelf life. The low moisture (<10 percent) and low fat (<one percent) content of TSP ensures that this product can be stored for long periods even when storage conditions are less than favorable.
5. Shelf Life
The functional properties of TSP are estimated to remain excellent for one year. The nutritional quality of the product is excellent for several years. Flavor changes can occur when TSP is stored under adverse conditions for periods longer than one year. Storage below 75 degrees F and 60 percent relative humidity will promote longer shelf life. Based on anecdotal reports from manufacturers, TSP has been successfully used worldwide for more than 30 years in developing countries.
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