Study of the low intensity spectral bands within the infrared spectra of kernels of high-yielding maize hybrids
2019
Radenović, Čedomir N. (https://orcid.org/0000-0002-4997-7635) | Maksimov, Georgij V. | Slatinskaya, Olga V. | Protopopov, Fedor F. | Delić, Nenad S. (https://orcid.org/0000-0003-4020-0114) | Pavlov, Jovan M. (https://orcid.org/0000-0002-0310-1902) | Popović, Aleksandar S. (https://orcid.org/0000-0002-4569-6799) | Sečanski, Mile D. (https://orcid.org/0000-0003-2070-4366)
The nature, role, and significance of low intensity spectral bands contained within the infrared spectra of kernels of high-yielding maize hybrids: ZP 341, ZP 434, and ZP 505 were observed in this study. The observations were performed to identify organic molecules and their structural properties. The occurrence of unstable state of organic compounds and their functional groups are conditioned by such a process. The set hypothesis holds that there is a necessity to study the existence of many and low intensity spectral bands, not observed so far, occurring in different patterns (low intensity bands, single or grouped). They should be observed and the dynamics of their formation, caused by their different movements, including the possibility of their cancellation or amplification, should be explained. Such spectral bands most often appear in the wave number range of 400–950 cm-1. They occur in several wave numbers up to 3,000 cm-1 and are caused by different types of vibration movements (valence and deformation vibrations) of organic compounds and their functional groups: primary, secondary, and tertiary amides, proteins, free amino acids, alkanes, alkenes, aldehydes, ketones, aromatic compounds, cellulose, carbohydrates, carboxylic acids, ethers, and alcohols. An unbiased analysis of low intensity spectral bands of maize hybrid kernels reveals that their occurrence is similar. Small differences, for some cases of the occurrence of low intensity spectral bands, can barely be ascertained. In this way, it is possible to establish not only the chemical composition of organic compounds of kernels of observed maize hybrids, but also it is possible to indicate their unstable, conformational, and functional properties.
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