期刊
JOURNAL OF FOOD SCIENCE
卷 77, 期 11, 页码 S407-S411出版社
WILEY
DOI: 10.1111/j.1750-3841.2012.02953.x
关键词
antioxidants; descriptive sensory analysis; peanut; peanut butter; peanut skins
Peanut skins (PS) are a good source of phenolic compounds. This study evaluated antioxidant properties and flavor of peanut paste and peanut butter enhanced with peanut skins. PS were added to both materials in concentrations of 0.0%, 0.5%, 1.0%, 5.0%, 10.0%, 15.0%, and 20.0% (w/w). PS, peanut paste, and peanut butter used in the study had initial total phenolics contents of 158, 12.9, and 14.1 mg GAE/g, respectively. Hydrophilic oxygen radical absorbance capacity (H-ORAC) of peanut skins was 189453 mu Mol Trolox/100 g and addition of 5% PS increased H-ORAC of peanut paste and peanut butter by 52% to 63%. Descriptive sensory analysis indicated that the addition of 1% PS did not change intensity of descriptors in the sensory profile of either peanut paste or peanut butter. Addition of 5% PS resulted in significant differences in woody, hulls, skins; bitter; and astringent descriptors and 10% PS addition resulted in significant differences in most attributes toward more negative flavor.
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