الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 242 |  |  |
| | | from | 242 | | |
Abstract
Technological and Chemical Studies on Improving Some Bakery Products by Using Natural Sources
ABSTRACT
Chemical, bio-chemical and minerals composition of pomegranate seed pomace (PSP) and the date press powders (DPP) were studied. The results indicated that PSP and DPP is a good source for total dietary fiber, minerals, total phenols, total flavonoids and antioxidant activity. The effect of replacement of wheat flour (72% ext.) with 20, 25 and 30% PSP or DPP on physico-chemical and organoleptic properties of sweet biscuit and salted biscuit were studied. The obtained data show that by increasing the percent of replacement with the previous two sources in the produced biscuits lead to increase of ether extract, ash, crude fiber and mineral contents, while crude protein, available carbohydrates and energy were gradually decreased compared with the control sample. Also, the moisture content and water activity values were increased significantly by increasing the replacement percent with PSP or DPP. During storage period the pH value of biscuit samples was significantly decreased by increasing the replacement percent with PSP or DPP. Also, results revealed that the pH value of all biscuits samples increased with the increase of storage period up to 6 months. At the same time, both of acid value and peroxide value of biscuit samples significantly increased with increasing of storage period up to 6 months. Finally, it could be noted that, sweet and salted biscuits produced by partially replacement of wheat flour with PSP or DPP until level 30% had characterized with a good sensory properties and acceptability. It could be recommended that incorporation of the mentioned raw materials as a food by product to obtain healthy food products (especially bakery products) have a high biological value.
KEYWORDS: Pomegranate seed pomace, date press pomace, biscuits, chemical and physical properties, storage effect.