Sucralose is an artificial sweetener. The majority of ingested sucralose is not broken down by the body and therefore it is non-caloric. In the European Union, it is also known under the E number (additive code) E955. Sucralose is approximately 600 times as sweet as sucrose (table sugar), twice as sweet as saccharin, and 3 times as sweet as aspartame. It is stable under heat and over a broad range of pH conditions. Therefore, it can be used in baking or in products that require a longer shelf life. The commercial success of sucralose-based products stems from its favorable comparison to other low-calorie sweeteners in terms of taste, stability, and safety. Common brand names of sucralose-based sweeteners are Splenda, Sukrana, SucraPlus, Candys, Cukren and Nevella.
Tate & Lyle manufactures sucralose at a plant in Jurong, Singapore. Formerly, it was produced at a plant in McIntosh, Alabama. It is manufactured by the selective chlorination of sucrose (table sugar), which substitutes three of the hydroxyl groups with chloride. This chlorination is achieved by selective protection of the primary alcohol groups followed by acetylation and then deprotection of the primary alcohol groups. Following an induced acetyl migration on one of the hydroxyl groups, the partially acetylated sugar is then chlorinated with a chlorinating agent such as phosphorus oxychloride, followed by removal of the acetyl groups to give sucralose.
Sucralose can be found in more than 4,500 food and beverage products. It is used because it is a no-calorie sweetener, and does not promote dental cavities, is safe for consumption by diabetics, and does not affect insulin levels. Sucralose is used as a replacement for, or in combination with, other artificial or natural sweeteners, such as aspartame, acesulfame potassium or high-fructose corn syrup. Sucralose is used in products such as candy, breakfast bars and soft drinks. It is also used in canned fruits wherein water and sucralose take the place of much higher calorie corn syrup-based additives. Sucralose mixed with maltodextrin or Dextrose (both made from corn) as bulking agents is sold internationally by McNeil Nutritionals under the Splenda brand name. In the United States and Canada, this blend is increasingly found in restaurants, including McDonald's, Tim Hortons and Starbucks, in yellow packets, in contrast to the blue packets commonly used by aspartame and the pink packets used by those containing saccharin sweeteners; in Canada, though, yellow packets are also associated with the SugarTwin brand of cyclamate sweetener.
Sucralose is a highly heat-stable artificial sweetener, allowing it to be used in many recipes with little or no sugar. Sucralose is available in a granulated form that allows for same-volume substitution with sugar. This mix of granulated sucralose includes fillers, all of which rapidly dissolve in liquids. While the granulated sucralose provides apparent volume-for-volume sweetness, the texture in baked products may be noticeably different. Sucralose is not hygroscopic, meaning it does not attract moisture, which can lead to baked goods that are noticeably drier and manifesting a less dense texture than those made with sucrose. Unlike sucrose, which melts when baked at high temperatures, sucralose maintains its granular structure when subjected to dry, high heat (e.g., in a 350 °F or 180 °C oven). Furthermore, in its pure state, sucralose begins to decompose into other substances at temperatures above 119 °C or 246 °F. Thus, in some baking recipes, such as crème brûlée, which require sugar sprinkled on top to partially or fully melt and crystallize, substituting sucralose will not result in the same surface texture, crispness, or crystalline structure.
Safety
Sucralose has been accepted by several national and international food safety regulatory bodies, including the U.S. Food and Drug Administration (FDA), Joint Food and Agriculture Organization / World Health Organization Expert Committee on Food Additives, the European Union's Scientific Committee on Food, Health Protection Branch of Health and Welfare Canada, and Food Standards Australia-New Zealand (FSANZ). Sucralose is one of two artificial sweeteners ranked as "safe" by the consumer advocacy group Center for Science in the Public Interest. The other is neotame. According to the Canadian Diabetes Association, the amount of sucralose that can be consumed on a daily basis over a person’s lifetime without any adverse effects is 9 milligrams per kilogram of body weight.