Comparative analysis of pulsed and steady radiation influence on dynamic of extractives
An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the irradiation is applied in a pulsed mode rather than in a steady one. Описано п...
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| Опубліковано в: : | Вопросы атомной науки и техники |
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| Дата: | 2006 |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2006
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| Цитувати: | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives / N.P. Dikiy, A.N. Dovbnya, V.A. Kutovoy, S.V. Kutovoy, E.P. Medvedeva, D.V. Medvedev, V.N. Borisenko // Вопросы атомной науки и техники. — 2006. — № 2. — С. 196-197. — Бібліогр.: 4 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859495692064522240 |
|---|---|
| author | Dikiy, N.P. Dovbnya, A.N. Kutovoy, V.A. Kutovoy, S.V. Medvedeva, E.P. Medvedev, D.V. Borisenko, V.N. |
| author_facet | Dikiy, N.P. Dovbnya, A.N. Kutovoy, V.A. Kutovoy, S.V. Medvedeva, E.P. Medvedev, D.V. Borisenko, V.N. |
| citation_txt | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives / N.P. Dikiy, A.N. Dovbnya, V.A. Kutovoy, S.V. Kutovoy, E.P. Medvedeva, D.V. Medvedev, V.N. Borisenko // Вопросы атомной науки и техники. — 2006. — № 2. — С. 196-197. — Бібліогр.: 4 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the
grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the irradiation
is applied in a pulsed mode rather than in a steady one.
Описано применение электронных ускорителей в радиационной технологии экстракции полифенолов винограда после вакуумной сушки. Показано, что процесс экстракции идет наиболее эффективно в образцах, облученных импульсным излучением по сравнению с контрольными образцами и образцами, облученными непрерывным излучением
Описано застосування електронних прискорювачів в радіаційній технології екстракції поліфенолів винограду після
вакуумного сушіння. Показано, що процес екстракції іде найбільше ефективно в зразках, опромінених імпульсним
випромінюванням у порівнянні з контрольними зразками і зразками, опроміненими безперервним випромінюванням.
|
| first_indexed | 2025-11-24T23:24:03Z |
| format | Article |
| fulltext |
COMPARATIVE ANALYSIS OF PULSED AND STEADY RADIATION IN-
FLUENCE ON DYNAMIC OF EXTRACTIVES
N.P. Dikiy, A.N. Dovbnya, V.A. Kutovoy, S.V. Kutovoy, E.P. Medvedeva, D.V. Medvedev,
V.N. Borisenko
NSC KIPT, Kharkov, Ukraine
E-mail: ndikiy@kipt.kharkov.ua
An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the
grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the irradia-
tion is applied in a pulsed mode rather than in a steady one.
PACS: 29.17.-w, 28.41.Wk
INTRODUCTION
Now, when treatment by synthetic medical products
provokes growth of complications owing to their side
effect, the preference is given to the specimens made of
vegetative raw material [1, 2].
The analysis of the production technology of phyto-
chemical medications shows that one of the basic stages
– extraction, determines technical and economic effi-
ciency of all manufacture. And, unfortunately, this tech-
nology remains most poorly completed as regard to in-
tensification of process and completeness of extraction
of biologically active substances. Advantage is given to
radiation-chemical technology which is determined by
ability of ionizing radiation to initiate chemical process-
es of substance.
EXPERIMENTAL SET-UP AND METHODS
The electron accelerators are applied most widely in
radiation technology [3,4]. Their advantage is stipulated
by possibility to create powerful directed beams of ac-
celerated electrons, which allows performing effectively
the bombarding radiation.
Efficiency of radiation-chemical transformations in
vegetable objects depends first of all on ionizing radia-
tion influences on separate components of objects (di-
rect influence of irradiation). The decomposition of any
substances is connected with active intermediates (ions,
radicals) which are generated at radiolysis of different
components.
Recently, the significant attention is given to the
polyphenols contained in grape. Polyphenols are cyclic
spirits where in benzene ring of hydroxyl groups are
contained. Polyphenols of grape in the form of
flavonoids, coming to organism of animals and humans
with food, are controlling and normalize processes of
metabolism at cell level.
The fundamental universal reason of cells damage in
organism of humans and animals is structurally func-
tional violations of biomembranes of cells as a result of
reinforcement of intensity of free-radical oxidations and
formations of highly-reactionary products, which are re-
sulting in origination of various pathological conditions
(stress, oncology, immune insufficiency, aging, etc.). It
is determined that antioxidants obtained from grape ex-
tract, possess the most expressed properties of free radi-
cals neutralization among bioflavonoids.
The purpose of this paper is to study the effect of ra-
diation influence on the dynamics of extractives from
grape raw material.
Fiber and kernels of different kinds of grape were
used as object of study. They were preliminary dried in
thermal-vacuum dryer.
The radiation bombarding of samples was carried
out on the accelerator “KUT” (pulse duration – 2.6 mi-
croseconds, frequency – 200 Hz, energy – 12 MeV) and
"ELIAS" apparatus (pulse duration – 440 microseconds,
frequency – 2.25 KHz, energy – 2.5 MeV). Radiation
doses made up 10, 20 and 40 kGr.
RESULTS AND DISCUSSION
Dependences of рН parameter from extraction time
of the unirradiated and irradiated grape material are pre-
sented in Figs.1,2 and 3.
0 50 100 150 200 250 300 350
8
7
6
5
4
3
0 2 4 6 8 10
0
2
4
6
8
10
pH
t, min
(3)
(2)
(1)
Fig.1. Extraction dynamics (pH-ions) of unirradiated
and irradiated (10 kGr dose) of the grape fiber (M10):
1- control; 2 - steady irradiation; 3 - pulsed irradiation
The dynamics of hydrogen ions density during ex-
traction of the researched substances was measured on
pH-meter-340. The sample was 1 g of dry grape materi-
al. A sample was filled by 50 ml of distilled water and it
was located in the thermostat for incubation at 370С.
Magnetic rabble was used for mixing extractives. The
time of рН measurements of the extracts has made 60,
120, 240 and 360 minutes.
It was studied the acidity dynamics of grape fiber
and kernels extracts which has been dried at different
temperatures 40°C, 50°C, 60°С and pressure of 8, 14
and 16 mm Hg versus radiation dose of 10, 20 and
40 kGr. These data reflect hydrogen ions density of cell
contents. There is significant amount of different forma-
tions as ions, excited molecules, etc. at bombarding ra-
diation influence onto grape samples. Complexity of
structure of components of vegetative raw material cre-
ates numerous interactions with ionizing radiation,
___________________________________________________________
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2006. № 2.
Series: Nuclear Physics Investigations (46), p.196-197.196
mailto:ndikiy@kipt.kharkov.ua
which probably leads to the formation of various prod-
ucts of radiolysis. It is known that the grape raw materi-
al contains significant amount of hydrocarbons (glu-
cose, fructose, saccharose, mannose).
0 50 100 150 200 250 300 350
8
7
6
5
4
3
0 2 4 6 8 10
0
2
4
6
8
10
pH
t, min
(3)
(2)
(1)
Fig.2. Extraction dynamics (pH-ions) of unirradiated
and irradiated (20 kGr dose) of the grape fiber (M10):
1 - control; 2 - continuous irradiation; 3 - pulsed irra-
diation
0 50 100 150 200 250 300 350
8
7
6
5
4
3
0 2 4 6 8 10
0
2
4
6
8
10
pH
t, min
(3)
(2)
(1)
Fig. 3. Extraction dynamics (pH-ions) of unirradiated
and irradiated (40 kGr dose) of the grape fiber (M10):
1 – control; 2 – steady irradiation; 3 – pulsed irradiation
At bombarding radiation application to these products
by doses more than 60 kGr the disintegration of these
products with formation of organic acids and formaldehy-
des is possible. At application of small radiation doses to
these products the volatile acids are formed. The mecha-
nism of increased acidity in the irradiated samples can be
explained by molecular transport of energy obtained
through Н-links between hydroxyl groups and hydrocar-
bon molecules. Formation of acids at application of bom-
barding radiation to the samples containing hydrocar-
bons, apparently, is possible to explain also by presence
of water which penetrates into crystal structure and modi-
fies chain of hydrogen links with hydroxyl groups, violat-
ing thus transfer of energy between joints.
Raise of acidity after radiant processing of grape raw
material is one of major factors of the interaction mecha-
nism of ionizing irradiation with the extraction process.
Increasing of hydrogen ions density leads to change of
structure of cell shell, decrease of extracts viscosity, de-
struction of complex compounds, and also increase of
penetrability of cell membrane structures, absorptivity, etc.
As it is known, the cell shell of grape fiber and ker-
nels consists of the long cellulose molecules connected
among themselves by polysaccharide bridges, formed
by mixture of hydrocarbons. Long cellulose molecules
keep their structure at the expense of different types of
links. So, some links, which direction is oriented in par-
allel to the axis of vegetable fibers, are covalent, and
other ones, directed perpendicularly to the axis, are
weaker hydrogen links. It is breach of hydrogen links,
which leads to acids formation.
Radiant processing of grape raw material down-
grades acidity in grape fiber and kernels. Reduction of
density of hydrogen ions leads to breach of cross-ties
between molecules also. Other reasons of cross-ties
breach can be act of free radicals, products of water ra-
diolysis or other substances, which have arisen under
act of radiant processing.
One can see from the obtained experimental data,
that density of hydrogen ions in fiber and kernels, dried
at different temperatures in vacuum dryer and irradiat-
ed by electrons with doses 10, 20 and 40 kGr depends
on several factors: kind of grape, type of grape raw ma-
terial (integral or grinded), temperature of vacuum dry-
ing and radiation dose.
CONCLUSIONS
Radiation processing of raw material intensifies the
process of extraction. Intensity of extraction reduces
within the dynamic of observation. The extraction pro-
cess is more effective in the case of pulsed irradiation be-
cause this regime provides a higher ionization density.
The scientific work was performed under the finan-
cial support by Science and Technology Center in
Ukraine, Project Uzb-14jR.
REFERENCES
1. V.G. Demyanenko, S.I. Demyanenko, O.T. Nikolov
et al. // Pharmaceutical Journal. 1989, №4, p.47-49.
2. G.G. Zapesochnaja, V.A. Kurkin, V.P. Bojko et al. //
Chemical-Pharmaceutical Journal. 1995, v.29, №4,
p.47-50.
3. V.S. Vetrov, N.A. Vysotskaja, A.M. Dmitriev et al.
Radiant Processing of Agricultural Waste Products.
M.: Energoatomizdat, 1984, 152 p.
4. T. Sadate // Rev. Gen. Nucl. 1986. №4, p.305, 331-334.
СРАВНИТЕЛЬНЫЙ АНАЛИЗ ИМПУЛЬСНОГО И НЕПРЕРЫВНОГО РАДИАЦИОННОГО ВОЗДЕЙСТВИЯ
НА ДИНАМИКУ ИЗВЛЕЧЕНИЯ ЭКСТРАКТИВНЫХ ВЕЩЕСТВ
Н.П. Дикий, А.Н. Довбня, В.А. Кутовой, С.В. Кутовой, Е.П. Медведева, Д.В. Медведев, В.Н. Борисенко
Описано применение электронных ускорителей в радиационной технологии экстракции полифенолов винограда по-
сле вакуумной сушки. Показано, что процесс экстракции идет наиболее эффективно в образцах, облученных им-
пульсным излучением по сравнению с контрольными образцами и образцами, облученными непрерывным излучением.
ПОРІВНЯЛЬНИЙ АНАЛІЗ ІМПУЛЬСНОГО І БЕЗПЕРЕРВНОГО РАДІАЦІЙНОГО ВПЛИВУ НА ДИНАМІКУ
ВИТЯГУ ЕКСТРАКТИВНИХ РЕЧОВИН
М.П. Дикий, А.Н. Довбня, В.А. Кутовой, С.В. Кутовой, Е.П. Медведєва, Д.В. Медведєв, В.Н. Борисенко
___________________________________________________________
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. 2006. № 2.
Series: Nuclear Physics Investigations (46), p.196-197.196
Описано застосування електронних прискорювачів в радіаційній технології екстракції поліфенолів винограду після
вакуумного сушіння. Показано, що процес екстракції іде найбільше ефективно в зразках, опромінених імпульсним
випромінюванням у порівнянні з контрольними зразками і зразками, опроміненими безперервним випромінюванням.
192
INTRODUCTION
EXPERIMENTAL SET-UP AND METHODS
RESULTS AND DISCUSSION
Conclusions
REFERENCES
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| id | nasplib_isofts_kiev_ua-123456789-78849 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-11-24T23:24:03Z |
| publishDate | 2006 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Dikiy, N.P. Dovbnya, A.N. Kutovoy, V.A. Kutovoy, S.V. Medvedeva, E.P. Medvedev, D.V. Borisenko, V.N. 2015-03-22T08:21:03Z 2015-03-22T08:21:03Z 2006 Comparative analysis of pulsed and steady radiation influence on dynamic of extractives / N.P. Dikiy, A.N. Dovbnya, V.A. Kutovoy, S.V. Kutovoy, E.P. Medvedeva, D.V. Medvedev, V.N. Borisenko // Вопросы атомной науки и техники. — 2006. — № 2. — С. 196-197. — Бібліогр.: 4 назв. — англ. 1562-6016 PACS: 29.17.-w, 28.41.Wk https://nasplib.isofts.kiev.ua/handle/123456789/78849 An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the irradiation is applied in a pulsed mode rather than in a steady one. Описано применение электронных ускорителей в радиационной технологии экстракции полифенолов винограда после вакуумной сушки. Показано, что процесс экстракции идет наиболее эффективно в образцах, облученных импульсным излучением по сравнению с контрольными образцами и образцами, облученными непрерывным излучением Описано застосування електронних прискорювачів в радіаційній технології екстракції поліфенолів винограду після вакуумного сушіння. Показано, що процес екстракції іде найбільше ефективно в зразках, опромінених імпульсним випромінюванням у порівнянні з контрольними зразками і зразками, опроміненими безперервним випромінюванням. The scientific work was performed under the financial support by Science and Technology Center in Ukraine, Project Uzb-14jR. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Применение ускорителей в радиационных технологиях Comparative analysis of pulsed and steady radiation influence on dynamic of extractives Сравнительный анализ импульсного и непрерывного радиационного воздействия на динамику извлечения экстрактивных веществ Порівняльний аналіз імпульсного і безперервного радіаційного впливу на динаміку витягу екстрактивних речовин Article published earlier |
| spellingShingle | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives Dikiy, N.P. Dovbnya, A.N. Kutovoy, V.A. Kutovoy, S.V. Medvedeva, E.P. Medvedev, D.V. Borisenko, V.N. Применение ускорителей в радиационных технологиях |
| title | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| title_alt | Сравнительный анализ импульсного и непрерывного радиационного воздействия на динамику извлечения экстрактивных веществ Порівняльний аналіз імпульсного і безперервного радіаційного впливу на динаміку витягу екстрактивних речовин |
| title_full | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| title_fullStr | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| title_full_unstemmed | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| title_short | Comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| title_sort | comparative analysis of pulsed and steady radiation influence on dynamic of extractives |
| topic | Применение ускорителей в радиационных технологиях |
| topic_facet | Применение ускорителей в радиационных технологиях |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/78849 |
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