Raw Materials and Appearance
1. Raw Material Source
Lactitol is a polyol sweetener made from natural lactose through industrial processing. The raw material route is singular and natural: lactose extracted from cow’s or sheep’s milk is the sole core ingredient (lactose is a natural sugar in dairy products, accounting for approximately 4.5%-5.0% of the dry matter in cow’s milk). Through catalytic hydrogenation, the aldehyde group in the lactose molecule is converted into a hydroxyl group. Following refining processes such as decolorization, desalting, concentration, crystallization, and drying, a high-purity lactitol product is finally obtained. No exogenous sugars such as sucrose or glucose are added during the production process, making its natural properties highly compatible with dairy raw materials.
2. Appearance: Pure lactitol typically appears as white needle-like crystals or a white crystalline powder, with uniform and fine particles, free of visible impurities. It has a faint or odorless odor, a mild sweetness (approximately 40%-60% of sucrose), a refreshing and smooth mouthfeel, and no noticeable aftertaste (such as bitterness or astringency). It dissolves without a cooling or burning sensation, and its flavor is highly similar to sucrose, making it suitable for food products requiring a delicate texture.
Basic Properties:
1. Low Calorie Attribute: It has a low energy density, providing approximately 2.4 kcal per gram, only 60% of that of sucrose (4 kcal per gram). Replacing sucrose can significantly reduce the overall calorie content of food, meeting the development needs of low-sugar, low-calorie foods.
2. Metabolic friendliness: Its metabolism is insulin-independent. Most of it is slowly absorbed in the small intestine (absorption rate approximately 60%-70%). The unabsorbed portion is fermented in the large intestine by gut microbiota into short-chain fatty acids (such as propionic acid and butyric acid). It does not directly raise blood sugar or stimulate insulin secretion, and has minimal impact on blood sugar and insulin levels.
3. Intestinal tolerance: It has better intestinal tolerance than most polyols (such as sorbitol and xylitol). Due to its slow absorption and mild fermentation process, a daily intake of≤40 grams is unlikely to cause bloating, diarrhea, or other gastrointestinal discomfort. Even with excessive intake (e.g., exceeding 50 grams), discomfort symptoms are relatively mild, making it suitable for long-term consumption by most people.
4. Food compatibility: It has excellent compatibility with other food ingredients (such as sugars, fats, proteins, vitamins, pigments, and flavorings). It does not react chemically with other components and does not affect the color, flavor, or shelf life of food. It can directly replace some or all of sucrose in food formulations.
Applications in the Sugar-Free Food Industry:
1. Sugar-Free Dairy Products: Used in sugar-free yogurt, low-fat milk, cheese, dairy beverages, ice cream, etc., enhancing sweetness without affecting the fermentation process and milky flavor of dairy products. Suitable for lactose-intolerant individuals (lactitol is lactose-free) and improves the smoothness of the product’s texture.
2. Sugar-Free Candy and Snacks: Suitable for sugar-free hard candy, soft candy, chocolate (especially white chocolate), chewing gum, jelly, etc., replacing sucrose to achieve a sugar-free formula; in chewing gum, its anti-caries properties enhance functionality; in chocolate, it improves texture (avoiding the “dryness” caused by the absence of sucrose).
3. Sugar-Free Baked Goods: Used in sugar-free bread, biscuits, cakes, pastries, meal replacement bars, etc., replacing some sucrose improves the product’s softness and water retention (e.g., bread becomes fluffier, biscuits don’t harden easily), extends shelf life, and does not affect the color of baked goods (avoiding excessive Maillard reaction leading to darkening). 4. Sugar-Free Beverages: Added to sugar-free lactic acid bacteria beverages, plant-based protein beverages (such as soy milk and almond milk), fruit and vegetable juices, sparkling water, etc., providing a mild sweetness without affecting the clarity and stability of the beverage. It is less prone to crystallization during low-temperature storage, ensuring the product’s appearance and taste.
Specialty Foods and Health Products:
Special Dietary Foods: Used in infant complementary foods, elderly nutritional foods, and diabetic-specific foods (such as sugar-free meal replacements and nutrition bars), providing a natural sweetness without metabolic burden, meeting the nutritional needs of specific populations.
Health Products: Added to sugar-free nutritional oral liquids, dietary fiber supplements, probiotic preparations, etc., improving product palatability, masking the off-flavors of functional ingredients, while not increasing the body’s metabolic burden, suitable for long-term use.
Other Areas:
Pet Food: Used in sugar-free pet snacks and pet dairy products, improving palatability while avoiding problems such as obesity and diabetes caused by high sugar intake in pets. Pets’ intestines have a high tolerance for lactitol.
Pharmaceutical preparations: As a filler and sweetener in oral tablets and capsules (such as children’s cold medicine and vitamin tablets), it improves the palatability of medicines and reduces children’s resistance to taking medicine; at the same time, it can be used as a pharmaceutical-grade moisturizer in ointments, creams and other topical preparations.
