Technological aspects of the microencapsulation bioactive food compounds by spray-drying
2021
Cardona Tangarife,Diana Paola | Patiño Arias,Lina Paola | Ormaza Zapata,Angela María
Abstract Spray-drying is widely used in the food industry for obtaining powdered products from the formation of small droplets inside a drying chamber at a high temperature. This drying technique has been applied to the formation of microcapsules with functional compounds to supplement food by adding one or more essential ingredients that can benefit human health. This review collects information on the principle and operating conditions involved in microencapsulation by spray-drying: the wall materials used, its influence on the physicochemical and functional properties of the microcapsules obtained, quality problems in microcapsules, and the release of bioactive compounds. It also includes studies related to microencapsulation of vitamins, minerals, oily substances, antioxidants, and probiotic microorganisms. We searched for scientific information published between 2010 and 2020 in high impact databases in the scientific community, for a total of 78 related studies. We observed that some combinations of bioactive compounds, with defined physicochemical and functional properties, give rise to new functional foods that massively improve the health of frequent consumers. The advances in microencapsulation by spray-drying are numerous and related to the new development and innovation trends in the food field.
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