According to the supply of glycerin: food-grade glycerol is commonly used in the food processing industry The sweeteners and humectants used are mostly found in sports foods and milk substitutes. Food-grade glycerin can be used as food additives. It is qualified in terms of purity, color, and heavy metal content, and comes with an inspection and quarantine health certificate for the corresponding batch. Food-grade glycerol must be certified by the China Food Hygiene Inspection Bureau and be deemed to comply with the “Food Safety Standard Food Additive Consumption Standard” (GB2760 standard).
There are standards for the dosage of food-grade glycerin in various foods. You can refer to the following suggestions:
1. Application in bread, cakes, etc.
Food-grade glycerin is used as a water-retaining and moisturizing agent in bread, cakes, etc. It has strong hygroscopicity and keeps it soft. texture, extending shelf life. The recommended addition amount is about 6%.
2. Application in gum-based candies
Mainly includes two categories: chewing gum and bubble gum, basically sugar (or sugar alcohol ), syrup, gum base, glycerin, flavors, pigments, etc. Glycerin is used as candy softener, emulsifier, etc. The recommended addition amount is 0.8-2%.
3. Application in juices, fruit vinegar and other beverages
Fruits contain tannins, which are the bitter and astringent odors in fruits. source. Glycerin can quickly decompose the bitter and astringent smell in fruit juice and fruit vinegar, and enhance the taste and aroma of the fruit juice itself, making it bright in appearance, sweet and sour. The recommended addition amount is 0.8-1%.
4. Application in fruit wine, liquor, wine and other alcoholic beverages
As a taste improver, sweetener, and bitter remover Flavor agents are used in wine. Adding them in appropriate amounts can increase the aroma, sweetness and richness of the wine. The recommended addition amount is 0.5-1.5%.
5. Application in preserved fruit and fruit cake industries
When preserved fruits are processed, the products are prone to water loss and drying due to storage problems. hard. Fruits also contain tannins. Food-grade glycerin can quickly inhibit the heterogeneous proliferation of tannins in preserved fruits, improve the palatability of preserved fruits, enhance the aroma of preserved fruits, improve the grade of preserved fruits, and increase the freshness, sweetness and moist appearance of preserved fruits. Glycerin also has special antioxidant and moisturizing effects, so it can lock the moisture in the finished fruit preserves and effectively extend the shelf life. The application method of fruit cake is the same. Add food-grade glycerin to the cooked fruit cake, adding 0.8-1 kg per 100 kg. After adding this product, stir evenly, cool and shape, and then package and market. After adding food-grade glycerin to the above two products, they can achieve better effects in terms of palatability, color, moisturizing, antioxidant, etc. The recommended addition amount is 0.8-1%.
6. Application in jerky, sausage, and bacon industries
Dried meat is a food with medium moisture content. In order to achieve the purpose of long-term preservation, , adding glycerin as a humectant can increase the moisture content while maintaining low water activity, thereby improving tenderness. When adding 3% food-grade glycerol, the water activity Aw of the product can be <0.7, and the moisture content can be controlled at 20%. The product structure will be soft and the tenderness will be improved.
During processing, dilute glycerin with pure grain wine above 50 degrees, spray it evenly on the meat or into the cut meat, and rub or stir it thoroughly. It can lock in water and moisturize, achieve weight gain, extend the shelf life, and improve the taste, color, and aroma of the product. The recommended addition amount is 1.2-3%.
7. Application in pet food
As a kind of pet snack food, dried chicken breast is widely popular in European and American countries. welcome. my country is the country that produces and exports the most dried chicken breast products, with nearly 100 million tons per year. European and American countries have very strict requirements for pet food. Not only are the physical and chemical indicators required to meet corresponding standards, but they also have high requirements for product appearance. The appearance of dried chicken breast products is required to be rosy, smooth, and free of fat, blood stasis, white silk, and dryness. Food-grade glycerin is added as a moisturizer to effectively prevent dryness and cracking and improve the appearance of the product. It is recommended to add about 2% food-grade glycerin to dried chicken breasts.
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