Is Sucralose the Same as Aspartame? What Are the Differences?

Sucralose and aspartame are common artificial sweeteners used in "low-sugar" or "no-sugar" beverages and foods, because they provide no nutrition and little calories. However, as a sweetener, is sucralose the same as aspartame? They actually have significant differences in terms of sweetness, stability, and safety. Let us discover their differences together!

Understanding Sucralose

Sucralose is a halogenated sucrose derivative and the only functional sweetener developed from sucrose. Prof. Hough L. from England developed this potent sweetener in the 1970s. Its taste is pure, and it is extremely similar to sucralose in many aspects, such as the diffusing speed of sweetness, the duration of sweetness, and the aftertaste. Therefore, it is also known as "super sweet sucrose".

1. Physical and chemical properties of sucralose

The chemical formula of sucralose is C₁₂H₁₉O₈Cl₃. Sucralose is odorless and hygroscopic. It is highly stable to temperature, very soluble in water, and may be dissolved in organic solvents such as ethanol and methanol. The solubility is 28.2g at normal temperature (28°C). Its stability is outstanding in light, heat, and pH value changes.

2. Functions and benefits of sucralose

Sucralose is derived from harmless sucrose. It lightens sour and salty tastes, masks astringent, bitter, alcoholic, and other flavors, and enhances pungent and creamy flavors. It provides high sweetness, about 400 to 800 times sweeter than sucrose. It is safe and non-toxic, with no adverse effects on the human body, and has been certified by the US FDA. It is low in calories and can be used by persons who cannot ingest nutritive sweeteners, such as those who are obese or diabetic. At the same time, it will prevent dental cavities, which is beneficial to dental health.

Understanding Aspartame

Aspartame, also referred to as APM or Canderel, is a non-carbohydrate artificial sweetener. Aspartame was once widely utilized in pharmaceutical and food production. However, studies have shown that excessive aspartame use could bring adverse impacts on people's health.

1. Physical and chemical properties of aspartame

Aspartame, with a full name as aspartyl phenylalanine methyl ester, has the chemical formula C₁₄H₁₈N₂O₅. It occurs as a white powder at room temperature. It is a natural functional oligosaccharide that is suitable for diabetics, not hygroscopic, and does not cause cavities.

2. Functions and drawbacks of aspartame

Aspartame is an effective sweetener in food and soft drinks, with a sweetness range of 180 to 220 times that of sucrose. Aspartame has a synergistic influence on several food and beverage flavors, especially sour fruit flavors. Aspartame can be utilized in synergistic combinations with strong sweeteners or carbohydrate-based sweeteners. This property further expands aspartame’s variety of applications.

Aspartame is stable in dry products such solid powdered beverages and various snacks. However, aspartame is subject to hydrolysis and cyclization at high temperatures, limiting its application in baked and fried meals that require high temperatures and lengthy processing times. Moisture, pH, and temperature can all contribute to the slow degradation of aspartame, resulting in the loss of sweetness.

Comparing Sucralose and Aspartame

Is sucralose the same as aspartame in sweetness and taste? Aspartame has a relatively low sweetness, around 200 times that of sucrose, but it has a similar sweetness and a high purity of sweetness, with no bitter aftertaste or metallic flavor. Sucralose is sweeter, reaching 600 times the sweetness of sucrose, yet its flavor is quite similar to sucrose and can leave a bitter aftertaste at high concentrations.

Is sucralose the same as aspartame in stability? Aspartame hydrolyzes at high temperatures or pH levels, rendering it unsuitable for use in foods that require high baking temperatures. However, when combined with fat or maltodextrin, its heat resistance increases. Sucralose, on the other hand, is more stable than aspartame at high temperatures, making it ideal for baking and other high-temperature processes.

Is sucralose the same as aspartame in safety? Aspartame is rapidly metabolized in the body, yielding aspartic acid, phenylalanine, and methanol. Although the combination of aspartic acid and other amino acids (for example, glutamic acid) may create health problems, studies have demonstrated that aspartame is not neurotoxic. Sucralose, on the other hand, has undergone thorough safety testing and has been proven to pose no serious risks to health.

Conclusion

Is sucralose the same as aspartame? Now we can draw a conclusion that they are two different sweeteners. In general, sucralose and aspartame differ in their composition, sweetness and flavor, stability, and safety. When choosing which sweetener to employ, consider your individual usage needs and personal preferences. At the same time, while utilizing these sweeteners, consumers' health and safety must be considered, including the amount utilized and the appropriate range.