E-ISSN 2536-9520 | ISSN 1110-2047
 

Original Research (Original Article) 


Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City

Fatma M. Ali, Ahlam A. Eleboudy, Maria A. El-Ansary.

Abstract
This study aimed to evaluate the safety and quality of frozen dairy desserts sold in different shops and supermarkets in Alexandria city. Eighty samples of ice cream of 4 different flavours (Vanilla, Chocolate, Mango and Strawberry) 20 of each as well as 20 samples of frozen yoghurt were collected randomly from Alexandria city. All samples were subjected to sanitary and microbiological evaluation. Results showed that samples subjected to Methylene Blue Reduction test revealed that 15(75%), 10(50%), 7(35%), 2(10%) of examined of ice cream samples (Vanilla, Chocolate, Mango and Strawberry) were qualified as Grade (1), respectively. While samples with Grade (2) were 2(1%), 1(5%), 0(0%), 1(5%) of examined samples, respectively. While 2(10%), 2(10%), 6(30%), 2(10%) of the four different flavours were Grade (3) with poor quality respectively. Also 1(5%), 7(35%),7(35%) and 15(75%), of samples were grade (4), respectively. 17(85%) frozen yoghurt samples were categorized as Grade (4) and 3(15%) showed grade(3) for methylene blue reduction test; mean values of aerobic mesophilic count (cfu/g) in examined flavoured ice cream (Vanilla, Chocolate, Mango and Strawberry) were 1.5x 105 ± 6.1x104, 9.5x〖10〗^6±6.4x〖10〗^5, 4.8x 106 ± 2.4x106 and 5.1x 107 ± 1.8x 107, respectively. Also, mean values of coliforms count (MPN/g) were 2.5x102 ±7.1x10, 6.6x〖10〗^2±2,5x〖10〗^2, 9.9x103 ± 6.3x103, 4x103 ±1.4x103 and 1.5x〖10〗^2±2.9x1 , respectively; mean values of Staph.aureus count (cfu/g) were 1.6x 102 ±7.0x 10, 3.4x102±9.4x102, 1.9x103±1.5x103, 7.4x102±2.9x102 and 3.33x〖10〗^2±1.2x〖10〗^2, respectively. Finally, mean values of mold count(cfu/g) were 2.2x102 ± 8.4x10, 9.6x〖10〗^2±4.4x〖10〗^2, 3.2x103±1.3x103, 3.7x103±1x 103and 1.3x〖10〗^4±6.4x〖10〗^3in examined Vanilla, chocolate, Mango, Strawberry ice cream samples and frozen yoghurt respectively.

Key words: Key words: Ice cream, Aerobic mesophilic count, coliforms count, Staph.aureus, flavored ice cream, mold count.


 
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How to Cite this Article
Pubmed Style

Ali FM, Eleboudy AA, El-Ansary MA. Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. AJVS. 2018; 59(1): 149-158. doi:10.5455/ajvs.294319


Web Style

Ali FM, Eleboudy AA, El-Ansary MA. Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. http://www.alexjvs.com/?mno=294319 [Access: July 22, 2019]. doi:10.5455/ajvs.294319


AMA (American Medical Association) Style

Ali FM, Eleboudy AA, El-Ansary MA. Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. AJVS. 2018; 59(1): 149-158. doi:10.5455/ajvs.294319



Vancouver/ICMJE Style

Ali FM, Eleboudy AA, El-Ansary MA. Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. AJVS. (2018), [cited July 22, 2019]; 59(1): 149-158. doi:10.5455/ajvs.294319



Harvard Style

Ali, F. M., Eleboudy, . A. A. & El-Ansary, . M. A. (2018) Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. AJVS, 59 (1), 149-158. doi:10.5455/ajvs.294319



Turabian Style

Ali, Fatma M., Ahlam A. Eleboudy, and Maria A. El-Ansary. 2018. Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. Alexandria Journal of Veterinary Sciences, 59 (1), 149-158. doi:10.5455/ajvs.294319



Chicago Style

Ali, Fatma M., Ahlam A. Eleboudy, and Maria A. El-Ansary. "Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City." Alexandria Journal of Veterinary Sciences 59 (2018), 149-158. doi:10.5455/ajvs.294319



MLA (The Modern Language Association) Style

Ali, Fatma M., Ahlam A. Eleboudy, and Maria A. El-Ansary. "Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City." Alexandria Journal of Veterinary Sciences 59.1 (2018), 149-158. Print. doi:10.5455/ajvs.294319



APA (American Psychological Association) Style

Ali, F. M., Eleboudy, . A. A. & El-Ansary, . M. A. (2018) Safety and Microbiological Quality of Frozen Dairy Desserts sold in Alexandria City. Alexandria Journal of Veterinary Sciences, 59 (1), 149-158. doi:10.5455/ajvs.294319





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