Encapsulation of oxidatively unstable compounds
a technology of unstable compounds and oxidative stability, applied in the field of encapsulation of materials, to achieve the effect of effectively drying powder faun and enhancing oxidative stability
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example 1
[0068]Corn oil and corn oil bodies were extracted by adding 500 g of methylene chloride to 250 g of corn germ. The corn germ in methylene chloride was refrigerated and allowed to soak overnight in a sealed glass container before blending on low speed for 30 seconds using a WARING™ 2 quart lab blender (from Hamilton Beach Brands, Inc.). After soaking while refrigerated overnight, the blend was poured into a sheet of four layers of cheesecloth and squeezed in order to remove most of the liquid. The permeate was placed in a shallow glass pan and the methylene chloride was allowed to evaporate in a fume hood for over 24 hours. The resulting oil-solids mixture weighed 40 g and had an apparent corn-like odor. The solids contained phospholipids and the proteins (including oleosins) associated with oil bodies in addition to other solids. An aqueous phase was prepared by first adding 1.20 g of sodium alginate to 1184 g of DI water, next adding 1.20 g of calcium chloride to 296 g of DI water,...
example 2
[0069]An encapsulated product was prepared using the method of Example 1 but employing 103 g (rather than 40 g) of the oil-solids mixture in the aqueous phase. The total yield of product collected in bottles from the cyclone was 791 g. An additional 488 g of product was scraped from the dryer. The product had an SPME value of 3,562 after 48 hours at 50° C. (see Table 3), thus demonstrating improved oxidative stability over the Comparative Examples.
example 3
[0070]Corn oil and corn oil bodies were extracted from dried corn germ. First, 262.7 g of dried, cold corn germ were removed from a −28° C. freezer, placed in a WARING 2 quart lab blender and ground on the low setting for 1.25 minutes, with a halt each 15 seconds to scrape down the sides. The ground corn germ was then placed in a 0.95 L bottle to which 500 g of water was added. The bottle was placed on a lab shaker for 60 minutes on low speed, stored at room temperature overnight, returned to the lab shaker for 5 hours on low speed and then stored in a refrigerator for 4 days. The mixture was centrifuged in 45 ml portions at 6000 rpm for 30 minutes. All of the liquid and floating material from the centrifuge tubes was collected and combined and then 15 ml of water was added to the tubes to float any remaining oil containing material. A total of 448 g of corn homogenate was collected. Next, 27 g of CaCl2 was dissolved in 50 g of water and cooled to room temperature. The Ca solution w...
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