| 摘要 |
The present invention relates to inventive butterfat fractions used in addition to or in place of some or all of the "native" fat in a food product. The invention also relates to methods for preparing healthy food products with the inventive butterfat fractions. The inventive butterfat fractions have a complete meltpoint below about 25.degree.C and are flavored, emulsified and/or treated with enzymes or microbes. Examples of enzymes used to treat the butterfat fractions or butterfat fraction emulsions are esterases (such as lipase) and desaturase enzyme systems including genetical ly modified systems; examples of microbes are Lactococcus lactis, Lactococcus cremoris, Lactococcus lactis diacetylactis, Leuconostoc cremoris, Lactobacillus helveticus, Lactobacillus casei, Micrococcus sp., and Pediococcus sp. The microbes may be added as attenuated, frozen, or freeze-dried cultures. Food products having reduced levels of saturated fatty acids, increased levels of monounsaturated fatty acids and/or reduced levels of total fat may be produced using the inventive butterfat fractions. |
