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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.
Define Interaction of pyridoxine with Ascorbic acid and Leucine? Ascorbic acid: Vitamin B 6 metabolism increases with. Higher levels of vitamin C intake. Whole blood a
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Explain in brief about Polymers In comparison to metals and ceramics, polymers are weak and flexible. These are not popular as dental implant materials. Examples of polymeric m
Explain Lamda and Kappa-carrageenan Lamda-carrageenan at a concentration of 0.05% produces thickening and stabilization. Sodium salts of Lamda and Kappa-carrageenan at a co
Burrowing - Mechanics of Locomotion Some polychaetes are burrowing. Instance is glycerides and capitellidae. Their parapodia are smaller. Burrowing is done by protrusion of pr
What is difference between self pollination and cross pollination? Which of the two modes of pollination contributes more to the plant diversity? Self pollination take places w
Explain the Photosensitive Detectors? A wide range of detectors varying in senstivity and cost are available. They contain a light sensitive surface that releases electrons in
GROWTH RATE IN ANIMALS - Growth rate is different at different periods of life. Growth period in human may be studied in 5 steps - (i) Prenatal - In gestation period fo
how can i explain the biphasic graph i get fom combination of two drugs?
ECG: Myocardial ischemia is indicated by T-wave inversions. Left ventricular hypertrophy (LVH) criteria: R in aVL >13 mm R voltage in L1+ S III >25 mm S v1 + R v5 or v6
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