Effect of guar gum on the rheological properties of dough, physico-chemical properties of bread, sensory characteristics of finished product and white bread quality was studied. At all levels of incorporation, there were increases water absorption from 61.2 to 64.5%, lowered the dough development time from 6.20 to 5.60 min, increased gluten development, increased dough stability, increased break down time from 37.3 to 40.5 min, higher the mixing tolerance index from 52.2 to 54.6 BTU and increased the elasticity i.e. 72.3 to 74.6 BU of the dough. The external characteristics like color of crust, symmetry, evenness, character of crust and aroma was improved linearly with increased the concentration of guar gum and also internal characteristics like color of crumb, taste and texture was improved.
The present research work on development and evaluation of composite flour for missi roti / chapati were carried out to develop the nutritious flours from various food commodities (wheat flour, chickpea, and soybean and methi leaves powder) to make good quality of chapaties. Four types of bends were acceptable. They were made from wheat flour, chickpea, full fat soy flour and methi powder in different ratio viz; 'A' wheat flour: chickpea flour (80:20). 'B' wheat flour: fullfat soy flour (90:10) 'C' wheat flour: chickpea flour: soy flour (80:10:10) and 'D' wheat flour: chickpea flour: soy flour: methi leaves powder (75: 10: 10: 05). The proximate composition of blends used for preparation of various products contained higher amount of protein and other nutrients. They contained proteins (11.8 to 15.37%), fat (1.53 to 3.45%), fibre (1.24 to 2.05%), ash (2.08 to 2.70%) and carbohydrates (65.99 to 74.2%). These results showed that soy flour / chickpea flour alone or in combination, both increased the amount of protein significantly. Calcium, phosphorus and iron were found to increase on supplementation of chickpea, soy flour and methi powder. Iron was high in methi supplemented blend. All these blended flours were found to have good sensory quality characteristics of products as control. All these blended flours could be well stored in polyethylene bags or tin boxes for the period of 3 months without any deterioration of quality. The supplementation of 5% methi powder increased the nutritional quality of flour particularly in minerals (calcium and iron) and fibres.
The high pressure technology (HPT) represents interesting and promising dimensions for food processing not only because of it inactivates microorganism but also providing opportunities for development of value added food products. This method helps to food product by retaining their natural color, flavor and texture without loss of vitamins and nutrients, total inhibition of microorganism at 400-800 MPa, keeping the granules structure of pasteurized swelled starch & improving enzyme digestibility & gelatinized structure (without retrogation) and total inactivation of PPO (poly phenol oxidase) activity at 20 0 C by using citric acid solution. The aim of this review is the different aspects and potential application of HPT and critically examines HPT related studies. Different types of food product (fruits and vegetables product, Dairy product, Meat product, Starch product etc.) are preserved and maintained the nutritional qualities for longer time.
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