Study of the molecular-structural composition of alcoholic extracts of radio-induced potato tubers by mass spectrometry and EPR

被引：1

作者：

Musin, Lenar ^{[1
]}

Nigmatullina, Lilya ^{[2
]}

Laikov, Alexander ^{[2
]}

Morozov, Vladimir ^{[3
]}

Nizamov, Ramzi ^{[4
]}

Gainullin, Ruslan ^{[4
]}

Vasilevskiy, Nikolay ^{[4
]}

Kamalova, Zilya ^{[4
]}

Nefedova, Rimma ^{[4
]}

Borisov, Dmitry ^{[1
]}

机构：

[1] Russian Acad Sci, Fed State Budgetary Inst Sci, Fed Res Ctr, Kazan Sci Ctr, Lobachevskogo St 2-31, Kazan, Russia

[2] Kazan Fed Univ, Inst Fundamental Med & Biol, OpenLab Om Technol, Kremlyovskaya St 18, Kazan, Russia

[3] RAS, FRC Kazan Sci Ctr, Arbuzov Inst Organ Phys Chem, Arbuzov St 8, Kazan, Russia

[4] Fed Ctr Toxicol Radiat & Biol Safety, Kazan, Russia

来源：

FOOD CHEMISTRY | 2022年 / 396卷

关键词：

Gamma radiation; EPR; Mass-spectrometry; Potato tubers; Radicals; Maillard reaction; Radiotoxins; 2; 3-dihydro-3; 5-dihydroxy-6-methyl-4 (H)-pyran-4-one; GAMMA-IRRADIATION; MAILLARD REACTION; BETA-CAROTENE; ELECTROSPRAY; TEMPERATURE; OXIDATION; SUGAR; ACID;

D O I：

10.1016/j.foodchem.2022.133665

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This article presents data on electron paramagnetic resonance (EPR) and mass spectrometric analysis of potato tubers, irradiated with gamma rays, in order to examine and identify changes in the molecular composition of organic matter following radiation exposure. The products of the Maillard reaction were compared with the products of intramolecular radiolysis of organic constituents of potatoes. The presence of free radicals was verified using EPR. DDPM (2,3-dihydro-3,5-dihydroxy-6-methyl-4 (H)-pyran-4-one) was among the radiolysis products detected via mass spectrometry, which points to the intramolecular dehydration of potato carbohy-drates. EPR signals indicate single-electron transitions of the semidione radical anionic molecular compounds. It has been shown that irradiation with gamma rays significantly destroys the carbohydrate, lipid, keto-carotene and amino acid molecules of potatoes.

引用

页数：9

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