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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0738    [Accepted] Published online January 2, 2019.
Development of non-dairy creamer analogs/mimics for an alternative of infant formula using egg white, yolk, and soy proteins
Xi Huang1, Eun Joo Lee2,*, Dong U Ahn3,*
1College of Food Science & Technology, Huazhong Agricultural University, Egg Processing Technology Local Joint National Engineering Research Center, National R&D Center for Egg Processing, Wuhan, Hubei 430070, China
2Department of Food and Nutrition, University of Wisconsin-Stout, Menomonie, WI 54751, USA
3Department of Animal Science, Iowa State University, Ames, IA 50011, USA
Correspondence:  Eun Joo Lee,Email: leeeu@uwstout.edu
Dong U Ahn, Tel: +1-515-294-6595, Fax: +1-515-294-9143, Email: duahn@iastate.edu
Received: 27 September 2018   • Revised: 19 November 2018   • Accepted: 4 December 2018
Abstract
A study was conducted to develop non-dairy creamer analogs/mimics using egg white, egg yolk, soy protein and their combinations, and their nutrient content, shelf-life and flavor acceptability were compared. The protein contents of the non-dairy creamer analogs/mimics were about 8.5% as calculated. The amounts of oleic and linoleic acid content increased as the amount of yolk increased in the formula, but the increases of polyunsaturated fatty acids were < 0.5% of total fat. Addition of egg yolk to the formula increased choline and lutein content in the products, but the amounts were < 0.4 mg/g for choline and 4 g/g for lutein. The lutein in the products continued to decrease over the storage time, and only about 15-20% of the 0-month amounts were left after 3 months of storage. Although the TBARS values of the spray-dried non-dairy creamer analogs/mimics increased as storage time increased, the values were still low. Yellowness, darkness, and egg flavor/odor of the non-dairy creamer analogs/mimics increased as the amount of egg yolk in the formula increased. The overall acceptability of the non-dairy creamer analogs/mimics was closely related to the intensity of egg flavor/odor, but storage improved their overall acceptance because most of the off-odor volatiles disappeared during the storage. Water temperature was the most important parameter in dissolving spray-dried non-dairy creamer analogs/mimics, and 55-75 oC was the optimal water temperature conditions to dissolve them. Higher amounts of yolk and soy protein combinations in place of egg white reduced the cost of the products significantly and those products contained better and balanced nutrients than the commercial coffee creamers. However, off-flavor and solubility were two important issues in the products.
Keywords: Non-dairy Creamer; Egg Yolk and White; Nutrient Content; Shelf-life; Flavor Acceptability
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