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ARS Home » Southeast Area » Fort Pierce, Florida » U.S. Horticultural Research Laboratory » Citrus and Other Subtropical Products Research » Research » Publications at this Location » Publication #369458
Research Project: Quality, Shelf-life and Health Benefits for Fresh, Fresh-cut and Processed Products for Citrus and Other Tropical/Subtropical-grown Fruits and Vegetables

Location: Citrus and Other Subtropical Products Research

Title: Low inlet air temperature spray-drying for improved encapsulation of carvacrol in a pectin/sodium alginate matrix

Author
item Sun, Xiuxiu
item Cameron, Randall - Randy
item Bai, Jinhe

Submitted to: Proceedings of Florida State Horticultural Society
Publication Type: Proceedings
Publication Acceptance Date: 11/1/2019
Publication Date: 12/31/2019
Citation: Sun, X.N., Cameron, R.G., Bai, J. 2019. Low inlet air temperature spray-drying for improved encapsulation of carvacrol in a pectin/sodium alginate matrix. Proceedings of Florida State Horticultural Society. 132:182-184.

Interpretive Summary:

Technical Abstract: Even though the effectiveness of essential oils against a variety of microorganisms has been well documented in the literature, the application of essential oils for the preservation of food is restrictive due to their powerful or unpleasant aroma. Microencapsulation has been extensively utilized in the pharmaceutical and food industries to entrap essential oils related to flavoring. Spray-drying is one of the most commonly used microencapsulation techniques in the food industry. The inlet air temperature of spray-drying affects the physicochemical and functional properties of the microcapsules. In this research, four inlet air temperatures (100, 130, 160, and 190 °C) were applied for the encapsulation of carvacrol in a pectin/sodium alginate matrix. The lower temperatures (100 and 130 °C) resulted in the microcapsules with better physicochemical, structural, and functional properties. Therefore, the inlet temperature between 100-130 °C is the ideal for processing pectin/sodium alginate encapsulated carvacrol.