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American Journal of Food Technology
  Year: 2012 | Volume: 7 | Issue: 9 | Page No.: 562-570
DOI: 10.3923/ajft.2012.562.570
 
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Development of Fruit Dahi (Yoghurt) Fortified with Strawberry, Orange and Grapes Juice

Md. Nur Hossain, Md. Fakruddin and Md. Nurul Islam

Abstract:
Dahi or yoghurt is the most popular milk product owing to its particular physical, nutritional, microbiological and organoleptic properties. The research was conducted to prepare fruit yoghurt fortified with different level of fruit juice (5, 10 and 15%) of different fruits (strawberry, orange and grape). Different physical, chemical and microbiological characteristics were analyzed to assay the quality of the yoghurts. Quality of the yoghurts was improved due to incorporation of low level of fruit juice. Yoghurts fortified with 10% orange juice was the best in quality among the others. The smell and taste, body and consistency and color and texture of the fruit yoghurts were equally acceptable. 10 and 15% strawberry fruit yoghurt contain more acid and its texture was cracked down in refrigeration temperature. The moisture and acidity content of fruit yoghurts were increased than plain yoghurt because of high content of these in the fruits. The fat, protein, carbohydrates and ash content of strawberry and orange fruit yoghurt were decreased than normal plain yoghurt. But the carbohydrates content of grape yoghurt were increased because grape contains more sugar than milk and other two fruits. Statistical analysis showed that yoghurt fortified with 10% orange juice was more acceptable than others comparing all quality characteristics. The microbiological quality of the fruit yoghurts was also acceptable because of acid content of the fruits. In case of strawberry yoghurt, fruit juice concentration more than 5% was not suitable for fruit yoghurt because that are highly acidic and curd was cracked down at refrigerated condition. The findings of this research may give an overall idea about manufacturing of fruit yoghurt incorporating different level of fruit juice and appropriate technology of fruit yoghurt preparation.
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How to cite this article:

Md. Nur Hossain, Md. Fakruddin and Md. Nurul Islam, 2012. Development of Fruit Dahi (Yoghurt) Fortified with Strawberry, Orange and Grapes Juice. American Journal of Food Technology, 7: 562-570.

DOI: 10.3923/ajft.2012.562.570

URL: https://scialert.net/abstract/?doi=ajft.2012.562.570

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