Abstract
Microencapsulation is a well-known technology for the lipid delivery system. It prevents the oxidation of fatty acids and maintains the quality of lipid after extraction from oil seed and processing. In flaxseed oil, the amount of ω-3 and ω-6 polyunsaturated fatty acids are 39.90–60.42% and 12.25–17.44%, respectively. A comprehensive review article on the microencapsulation of flaxseed oil has not been published yet. Realizing the great advantages of flaxseed oil, information about different technologies related to the microencapsulation of flaxseed oil and their characteristics are discussed in a comprehensive way, in this review article. To prepare the microcapsule of flaxseed oil, an emulsion of oil-water is performed along with a wall material (matrix), followed by drying with a spray-dryer or freeze-dryer. Different matrices, such as plant and animal-based proteins, maltodextrin, gum Arabic, and modified starch are used for the encapsulation of flaxseed oil. In some cases, emulsifiers, such as Tween 80 and soya lecithin are used to prepare flaxseed oil microcapsules. Physico-chemical and bio-chemical characteristics of flaxseed oil microcapsules depend on process parameters, ratio of oil and matrix, and characteristics of the matrix. As an example, the size of the microcapsule, prepared with spray-drying and freeze-drying ranges between 10–400 and 20–5000 μm, respectively. It may be considered that the comprehensive information on the encapsulation of flaxseed oil will boost the development of functional foods and biopharmaceuticals.
Highlights
Flaxseed is an abundant source of polyunsaturated fatty acids, short chain polyunsaturated fatty acids [1], soluble and insoluble fibers [2], phytoestrogenic lignans, antioxidants [3], and proteins [4]
Polyunsaturated essential fatty acids, such as ω-3 and ω-6 fatty acids are characterized by the presence of a double bond in three and six atoms, respectively away from the terminal methyl group in their chemical structure [1]
Information about different technologies on the microencapsulation of flaxseed oil and biochemical characteristics of the microcapsule are discussed in a comprehensive way
Summary
Flaxseed (latin name Linum usitatissimum) is an abundant source of polyunsaturated fatty acids, short chain polyunsaturated fatty acids [1], soluble and insoluble fibers [2], phytoestrogenic lignans, antioxidants [3], and proteins [4]. Polyunsaturated essential fatty acids, such as ω-3 and ω-6 fatty acids are characterized by the presence of a double bond in three and six atoms, respectively away from the terminal methyl group in their chemical structure [1]. Both ω-3 and ω-6 fatty acids are important for cell membrane development and precursor molecules of many physiological elements, which are involved in controlling inflammatory reactions, blood pressure, and mortal cardiac diseases. Information about different technologies on the microencapsulation of flaxseed oil and biochemical characteristics of the microcapsule are discussed in a comprehensive way
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
