An Introduction to Agricultural Biochemistry by J. M. Chesworth, T. Stuchbury, J. R. Scaife (auth.) PDF

By J. M. Chesworth, T. Stuchbury, J. R. Scaife (auth.)

ISBN-10: 0412643901

ISBN-13: 9780412643903

ISBN-10: 9400914415

ISBN-13: 9789400914414

Agricultural Biochemistry will supply an advent to the topic of biochemistry from a point of view that may be quite appropriate to agricultural scientists. it's going to specialize in the chemistry of plant and animal metabolism and the biomolecules which are excited about those pathways after which pass directly to speak about innovations crops and animals undertake for processing of food, the variation of those organisms to environmental stipulations and the ways that new genetic engineering recommendations can be utilized to govern growth.

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The carbon atom marked is asymmetrical. * isomers, the only L sugar normally encountered is L-arabinose, one of the components of some complex structural carbohydrates in plants. 5 SUGARS WITH FIVE CARBON ATOMS, THE PENTOSES Both ketoses and aldoses can be extended by the addition of a further carbon atom and hydroxyl group to give pentoses. This introduces yet another asymmetric carbon atom 22 The carbohydrates into each type of sugar and thus multiplies the number of possible isomers by two. Hence there are four possible keto-pentoses and eight aldo-pentoses.

The type of carbonyl group is denoted by the prefix of aldofor an aldehyde and keto- for a ketone. For example, glyceraldehyde is an aldo-triose. 1b). In the natural world, the tetroses are quite rare in their free form although several do appear as intermediates in metabolic processes. The carbon at the bottom of each structure is, by convention, the one with the highest number - in this case, 4. This carbon atom is always a CH20H group. Note that two of the sugars are referred to as 'L' sugars and two are 'D'.

Saturated and unsaturated straight-chain fatty acids Saturated and unsaturated fatty acids usually contain an even number of carbon atoms, typically between 10 and 24 carbon atoms in most plant and animal tissues. Small amounts of odd-numbered fatty acids (mainly 15 and 17 carbon atoms) are also found in plant and animal lipids. Unsaturated fatty acids contain one or more double bonds. Fatty acids with one double bond are called monounsaturated 36 Fatty acids and lipids fatty acids, those with more than one double bond are referred to as polyunsaturated fatty acids or PUFAs.

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An Introduction to Agricultural Biochemistry by J. M. Chesworth, T. Stuchbury, J. R. Scaife (auth.)


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