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Vol.2 , No. 5, Publication Date: Sep. 22, 2015, Page: 82-88
 has been used as sweetener in food products, including carbonated soft drinks, powdered soft drinks and some pharmaceuticals such as vitamins and sugar-free cough drops. Since Asp could be degraded under certain conditions such as moisture, temperature and pH into methanol, diketopiperazine, aspartyl phenylalanine, phenylalanine and aspartate. In most stores, the soft drinks which contain aspartame has been placed in front of stores exposure to sun and high temperature, which leads to increase instability of aspartame and to produce a toxic degradation products. The objective of this project was to evaluate the stability of aspartame in commercially beverages that manufactured in different countries by different companies like <i>Pepsi Light</i> and <i>Coca Cola Zero</i> which are available in Libyan market. The effect of temperature on aspartame stability in these beverages was studied. This study was also conducted to determine % lost (<i>degradation</i>) of aspartame for both <i>Pepsi Light</i> (4.6 % & 13.2 %) and <i>Coca Cola Zero</i> (5.0 % & 11.7 %) after exposed to the January’s and February’s sun temperature for 2 and 4 weeks, respectively. The storage and display temperature appeared to be the important factor for instability of Aspartame. In our project (<i>Coca Cola Zero</i> and <i>Pepsi Light</i>) have been chosen as diet and low calories beverages containing Asp, the remaining aspartame in the analyzed samples was determined after exposed to sun temperature for 2 and 4 weeks.&picture=http://www.aascit.org/aascit/decorators/img/journal/907.jpg)
| [1] | Mohamed N. El Attug, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tripoli, Tripoli, Libya. |
| [2] | Amal A. Ammar, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tripoli, Tripoli, Libya. |
| [3] | Nahla M. Almosrati, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tripoli, Tripoli, Libya. |
| [4] | Lyala M. Ben Yousef, Department of Food Control, Centre for Food and Drug Control, Gurgi, Tripoli, Libya. |
| [5] | Abdurrahman A. El Maremy, Department of Food Control, Centre for Food and Drug Control, Gurgi, Tripoli, Libya. |
Aspartame (Asp) has been used as sweetener in food products, including carbonated soft drinks, powdered soft drinks and some pharmaceuticals such as vitamins and sugar-free cough drops. Since Asp could be degraded under certain conditions such as moisture, temperature and pH into methanol, diketopiperazine, aspartyl phenylalanine, phenylalanine and aspartate. In most stores, the soft drinks which contain aspartame has been placed in front of stores exposure to sun and high temperature, which leads to increase instability of aspartame and to produce a toxic degradation products. The objective of this project was to evaluate the stability of aspartame in commercially beverages that manufactured in different countries by different companies like Pepsi Light and Coca Cola Zero which are available in Libyan market. The effect of temperature on aspartame stability in these beverages was studied. This study was also conducted to determine % lost (degradation) of aspartame for both Pepsi Light (4.6 % & 13.2 %) and Coca Cola Zero (5.0 % & 11.7 %) after exposed to the January’s and February’s sun temperature for 2 and 4 weeks, respectively. The storage and display temperature appeared to be the important factor for instability of Aspartame. In our project (Coca Cola Zero and Pepsi Light) have been chosen as diet and low calories beverages containing Asp, the remaining aspartame in the analyzed samples was determined after exposed to sun temperature for 2 and 4 weeks.
Keywords
Quality Control, Food Analysis, Aspartame, Diet and Low Calories Beverages
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