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Explain about the Browning Reactions?
The Browning Reactions are complex reactions which occur when foods are processed. In some the brown flavour is highly desirable and is intimately associated in our mind with the delicacy of the product. In coffee, maple syrup, the brown crust of bread and all baked goods, potato chips, roasted nuts and many other processed foods controlled browning is necessary. Yet in other foods, browning during processing is undesirable and forms off flavour and dull appearance or even objectionable colors. In drying of fruits or vegetables and in canning or concentrating orange juice, it is highly desirable to avoid browning. The presence of carbohydrates in foods is intimately connected with the browning, which occurs. Other compounds are sometimes important but they are the ones which have some of the reactive groups of the reducing sugars and are similar to them in properties. The pigments, which are formed, are high molecular weight polymers whose constitution is difficult to determine. The browning reactions appear to be complicated not only as to the final product but also as to the course of numerous reactions. It has been exceedingly difficult to assess the chemistry of this change in the complex mixtures, which is encountered in almost every food.
Collagen Helix Collagen has a large amount of glycine (25%) and proline (and hydroxyproline, 25%). They run parallel, form a right handed super-helix that is stabilized b
Define Objective of Taxonomy - Assemblage of Knowledge Gained? A second objective of taxonomy is the assemblage of knowledge gained. This is usually in the form of treatises us
Nitrogen Cycle The nitrogen is an essential constituent of protein - the building block of all living cells. It is also a major constituent of the atmosphere (79 per cent). Al
The pentose phosphate pathway also called as the phosphogluconate pathway and the hexose monophosphate shunt is a procedure which gives pentoses 5-carbon sugars and NADPH. There ar
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GASES There are 4 gases in the protoplasm which remain dissolved in its free water. These 4 gases are follows- CO 2 > O 2 > N 2 > H 2
Q. What are the major orders of placental mammals? What are a few representative species and distinguishing features of each of those orders? The orders into which placental ma
Diarrhoeas disease: Diarrhoeas disease rank among th most leading causes of children's death in developing countries. We shall discuss two main problems in this section i.e.
Shift of the phosphate group from carbon 3 to carbon 2 Shift of thephosphate group form carbon 3 to carbon 2: This reversible reaction is catalyzed by phosphoglycerate mutas
What is the karyotype found in Down syndrome? Down syndrome is the aneuploidy that is a numeric alteration of chromosomes within the cells compared to the normal number of chro
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