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    EFFECTS OF ZERO-TRANS INTERESTERIFIED AND NON-INTERESTERIFIED SHORTENINGS AND BREWER'S SPENT GRAIN ON COOKIE QUALITY
    (Wiley, 2009) Ozturk, Serpil; Ozbas, Ozen Ozboy; Javidipour, Issa; Koksel, Hamit
    The effects of non-interesterified (non-in-es) and chemically interesterified (in-es) cottonseed oil (CO), palm oil (PO) and CO : PO blend (1:1, weight basis) and brewer's spent grain (BSG) on quality of cookies were studied. Incorporation of non-in-es and in-es CO and CO : PO blend improved the nutritional value of the cookies by altering the fatty acid composition. The experimental shortenings had zero-trans fatty acids (TFA) and considerably higher linoleic acid contents than hydrogenated shortening (HS). in-es PO and CO : PO blend samples had lower solid fat content than their non-in-es counterparts and this resulted in higher spread ratios in in-es incorporated cookies. As expected, addition of BSG significantly increased (P < 0.05) the total dietary fiber (TDF) content of cookies. Cookies with modified fatty acid composition and 4.4-fold higher TDF have been produced by using non-in-es and in-es CO and CO : PO with 15% BSG, without significant adverse effects on sensory properties. PRACTICAL APPLICATIONS Hydrogenated shortenings (HSs) are the most important source of fat in cookies and might have high proportions of trans fatty acids (TFAs). A high intake of TFA is associated with increased risk of coronary heart disease and the intake should be reduced to minimize health risks. In this work, the production of zero-trans interesterified and non-interesterified shortenings and their utilization in high-fiber cookies were investigated. The results indicated that some of the experimental in-es and non-in-es shortenings and 15% brewer's spent grain could be used for production of cookies with zero TFA and higher unsaturated fatty acids and total dietary fiber contents without detrimentally affecting their sensory properties. The in-es shortening incorporated cookies had higher spread ratios and color values than their non-in-es counterparts.
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    Utilization of sugarbeet fiber and zero-trans interesterified and non-interesterified shortenings in cookie production
    (Verlag Dr Albert Bartens, 2008) Ozturk, Serpil; Ozboy-Ozbas, Ozen; Javidipour, Issa; Koksel, Hamit
    In this study, the effects of sugarbeet fiber (SBF) and non-interesterified (non-in-es) and interesterified (in-es) cottonseed oil (CO), palm oil (PO) and CO:PO blend on the quality of cookies were studied. SBF of particle size >425 mu m was added into the cookie formulation at the levels of 5, 10, 15, 20, and 25%. The addition of SBF significantly increased (p < 0.05) the total dietary fiber (TDF) content of cookies. Incorporation of non-in-es and in-es CO and CO:PO improved the nutritional content of the product by altering the fatty acid composition. These experimental shortenings have zero-trans fatty acids and considerably higher linoleic acid than hydrogenated shortenings. The in-es PO and in-es CO:PO blends had lower solid fat contents than their non-in-es counterparts and this resulted in higher spread ratios in in-es shortening incorporated cookies. Favorable cookies, similar to the standard cookies with modified fatty acid compositions and similar to 4 fold higher TDF, have been made by using non-in-es and in-es CO and CO:PO with 15% SBF, without significantly adverse changes in sensory properties.