Molecules, Free Full-Text
Por um escritor misterioso
Descrição
Carbohydrates are important compounds in natural products where they primarily serve as a source of energy, but they have important secondary roles as precursors of aroma or bioactive compounds. They are present in fresh and dried (cured) tobacco leaves as well. The sugar content of tobacco depends on the tobacco variety, harvesting, and primarily on the curing conditions (temperature, time and moisture). If the process of curing employs high temperatures (flue-curing and sun-curing), final sugar content is high. In contrast, when air curing has a lower temperature, at the end of the process, sugar level is low. Beside simple sugars, other carbohydrates reported in tobacco are oligosaccharides, cellulose, starch, and pectin. Degradation of polysaccharides results in a higher yield of simple sugars, but at the same time reduces sugars oxidization and transfer into carbon dioxide and water. Loss of sugar producers will compensate with added sugars, to cover undesirable aroma properties and achieve a better, pleasant taste during smoking. However, tobacco carbohydrates can be precursors for many harmful compounds, including formaldehyde and 5-hydroxymethylfurfural. Keeping in mind that added sugars in tobacco production are unavoidable, it is important to understand all changes in carbohydrates from harvesting to consuming in order to achieve better product properties and avoid the formation of harmful compounds. This review summarizes current knowledge about tobacco carbohydrates, including changes during processing with special focus on carbohydrates as precursors of harmful compounds during smoking.
Synthesis, Structure, and Heat Capacity of Some Basic
Lagu Xiao Wei Get File - Colaboratory
Hypoxia-Responsive Golgi-Targeted Prodrug Assembled with
Time Evolution Of Polarized Optical Microscopy Morphology Of Pla
Molecules, Free Full-Text
The Molecule of More - free download pdf - issuhub
Synthesis of Azonia Aromatic Heterocycles Bearing 6–6–6–5–6
Molecules, Free Full-Text
Interaction Profiles Of A Total Phenolic Content B Total Monomeric
Important Questions for Class 9 Chemistry Chapter 3 Atoms and
de
por adulto (o preço varia de acordo com o tamanho do grupo)