أمال أحمد حسن،نجوى موسى رسمى، ميرفت ابراهيم فوده، وفاء كامل بهجات
المؤلفون بالإنجليزي
Amal A. Hassan, Nagwa M. Rasmy, Mervat I. Foda and Wafaa K. Bahgaat
الملخص الانجليزي
Today foods are not intended to only satisfy hunger and to provide necessary nutrients for humans but, also to prevent nutrition-related diseases and improve physical and mental well-being of the consumers. In this regard, functional foods play an outstanding role. Therefore this study was designed to examine the effect of addition of some plant sources (e.g. barley, mustard, defatted mustard, flaxseed meal and flaxseed oil) as a source of active healthy components to prepare functional prebiotic biscuits for lowering blood lipids. Functional biscuits were formulated by replacing wheat flour in biscuit formula by different plant meals at 5, 10,15, 20, 25 and 30% levels or shortening by flaxseed oil at 25, 50, 75 and 100% levels. Data of sensory evaluation revealed that biscuit samples with 10% defatted mustard meal (DMM), 15% mustard and flaxseed meals(MM and FM), 30% barley meal (BM) and 100% flaxseed oil (FO) were significantly acceptable as control. Biscuits made with 10% DMM and 15% MM contained 1.37 and 1.25 times more protein than the control.
Biscuits supplemented with 30% BM and 15% FM contained 2.84 and 3.31 times more of total dietary fibers,respectively than the control. -glucan content of BM-biscuits was 1.82%. Flaxseed oil-biscuits were particularly rich in alpha linolenic acid (42.76%) and it contained a less amount of linoleic acid (13.52%). The biological evaluation of hypercholesterolemic rats fed on diets supplemented with different functional prebioticbiscuits for 8 weeks significantly (p 0.05) reduced serum total cholesterol, triglycerides, low density lipoproteins, very low density lipoproteins and ratios of total cholesterol/high density lipoproteins cholesterol, low density lipoproteins/high density lipoproteins cholesterol, atherogenic index and increased high densitylipoproteins. Histopathological examination revealed that feeding of diets containing flaxseed oil, flaxseed and barley meals to the hypercholesterolemic rats lowered the degree of lesions of heart and liver tissues. Thus, it could be concluded that flaxseed oil, flaxseed meal or barley meal based bakery products could be developed as a useful therapy for hyperlipidemia in developing countries like Egypt
,Functional prebiotic biscuits, Plant sources, Sensory evaluation, Total cholesterol, Triglycerides, Low density lipoproteins, High density lipoproteins, Histopathological examination