Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 62, Issue 46, Pages 11228-11235Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf503625p
Keywords
byproduct; fiber; moisture; polyphenol; proanthocyanidin
Funding
- CNPq (National Council for Scientific and Technological Development - Brazil) [242589/2012-0]
- FAPESP (Sao Paulo Research Foundation) [2012/17683-0]
- Natural Science and Engineering Research Council (NSERC) of Canada
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Food fortification may be carried out to improve the health status of consumers. In this study, peanut skins were added at 1.3, 1.8, and 2.5% to cookies to increase their polyphenol content. Insoluble fiber was increased by up to 52%. In addition, total phenolic content and the corresponding antioxidant capacities also increased as evidenced by increases of epicatechin and procyanidin dimers A and B. In addition, trimers and tetramers of procyanidins were identified only in peanut skin-fortified cookies. Addition of 2.5% peanut skins rendered an increase of up to 3096 in the total polyphenols as evaluated by high-performance liquid chromatography diode array detection-electrospray ionization multistage mass spectrometry (HPLC-DAD-ESI-MSn). Sensory evaluation results demonstrated that peanut skin-fortified cookies were well accepted, which suggests that the present formulation may lend itself for commercial exploitation.
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