Authors

  • Sattarova Barnokhon
    PhD in Chemical Sciences, Associate Professor, Fergana Polytechnic Institute, Fergana, Uzbekistan
  • Utanova Nazira
    Master’s Degree Student, Fergana Polytechnic Institute, Fergana, Uzbekistan
  • Makhmudova Aziza
    Master’s Degree Student, Fergana Polytechnic Institute, Fergana, Uzbekistan

DOI:

https://doi.org/10.71337/inlibrary.uz.ijasr.130769

Keywords:

Bakery products vitamins

Abstract

In this article we will talk about the importance of enriching bread products with micronutrients in human nutrition.


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Volume 02 Issue 04-2022

34



International Journal of Advance Scientific Research
(ISSN

2750-1396)

VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































A

BSTRACT

In this article we will talk about the importance of enriching bread products with micronutrients in human
nutrition.

K

EYWORDS

Bakery products, vitamins, mineral substances, calories, enrichment supplements, protein, to enrich,
micronutrients, chemical composition.

I

NTRODUCTION

Food security is one of the most pressing
challenges facing countries around the world. The

United Nations says it is time to change the way
we grow and process food. In recent decades, the

Journal

Website:

http://sciencebring.co
m/index.php/ijasr

Copyright:

Original

content from this work
may be used under the
terms of the creative
commons

attributes

4.0 licence.

Research Article

THE IMPORTANCE OF ENRICHMENT OF BAKERY PRODUCTS
WITH VITAMINS AND MINERALS ON HUMAN HEALTH

Submission Date:

April 05, 2022,

Accepted Date:

April 15, 2022,

Published Date:

April 28, 2022

Crossref doi:

https://doi.org/10.37547/ijasr-02-04-07

Sattarova Barnokhon

PhD in Chemical Sciences, Associate Professor, Fergana Polytechnic Institute, Fergana, Uzbekistan

Utanova Nazira

Master’s Degree Student, Fergana Polytechnic Institute, Fergana, Uzbekistan

Makhmudova Aziza

Master’s Degree Student, Fergana Polytechnic Institute, Fergana, Uzbekistan


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Volume 02 Issue 04-2022

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International Journal of Advance Scientific Research
(ISSN

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VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































problem of micronutrient deficiencies in human
nutrition

has

become

very

important.

Incorporating micronutrient bread into the diet is
an economical and easy way to improve the
health of the population [1].

Micronutrient bread meets 20% to 75% of a
person’s daily vitamin and mineral needs. Thanks
to them, the immune system, cardiovascular,
nervous system and others are strengthened [2].

Micronutrient-enriched foods help you store the
number of nutrients and nutrients your div
needs to function properly. Decree of the
President of the Republic of Uzbekistan dated
January 16, 2018 “On measures to further ensure
food security of the country” and the current
development of agricultural development of
Uzbekistan for the 2020-2030 strategy is relevant
in this context. Ensuring food security in our
country has become one of the main ways to
sustainably develop the socio-economic situation
of society, improve the health and well-being of
citizens, and maintain national security and
independence of the country. In this direction,
strategically targeted and consistent measures
are being taken in the country to provide the
population with quality food products, and to
support agricultural producers and processors
[3-7].

As the President said, “Strengthening the health of
our people, deciding on a healthy lifestyle is a vital
issue for us. I repeat, if we maintain peace and
health, we will achieve everything else the goal of
agricultural reform is to provide food security
and increase the well-being of the people while

providing economic benefits. [8-13]. We must
never forget that”.

Currently, manufacturers face the following
important challenges in fortifying food with
micronutrients (vitamins and minerals):

Selection of enriching micronutrients;

Selection of products for enrichment;

Guaranteed content of micronutrients in
fortified foods;

Study of the physicochemical properties of
micronutrients;

Calculate the number of micronutrients
added;

Evaluation of the fact that the product
enriched with micronutrients is really
effective and useful.

When fortifying products with micronutrients,
the preparation of flour should take into account
the number of natural vitamins and minerals in
their raw materials, as well as their loss during
production and storage [14]. At the same time, the
number of micronutrients added for external
enrichment should not exceed the established
regulations during the shelf life of the product
[15].

When adding micronutrients to food, the
technologist should take into account the
following:

Enrichment additives should be evenly
distributed throughout the product;

The method of adding enrichment additives
should be simple and technological;


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)

(2022:

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METADATA

IF

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The supplementation phase should be such
that there are no technological effects that
could

lead

to

the

breakdown

of

micronutrients.

Bread is not fully digested by the human div.
The appearance of bread is also important. Bread
made from it is completely digestible and
contains 0.7-0.8% of protein, 0.95-0.98% of
carbohydrates and 0.92-0.95% of fat [17-19].

Proteins play an important role in human activity.
Bread is the main means of regenerating the
human div. Proteins play a key role compared to
other substances. Amino acids play a key role in
the composition of proteins [20].

For human consumption, 1 kg of bread contains
70-80 g of protein, which satisfies 30% of the
div’s need for protein. The mineral value of
bread consists of 70 different elements. The
human div needs phosphorus, calcium, iron,
potassium, and magnesium. Trace elements
include enzymes, and hormone vitamins [21-24].
Phosphorus is a necessary substance for humans.

The total amount of minerals is 1-2 per cent.
Minerals also vary depending on the type of
bread. 500 g of bread is enough for the human
div [25]. Vitamins play the role of coenzymes in
the human div. The average daily requirement
of essential vitamins: B1 - 1.75 g; B2-2,25g; B3-
7,5g; B6-2,5g; B9-0.3 g; E-17.5 g; PP-20 g; Bread
does not contain vitamins A, C and D. The higher
the flour content, the higher the vitamin content
[26].

Carbohydrates are the div's main source of
energy. Certain carbohydrates have biological
properties, for example, ascorbic acid, and
vitamin C. Bread promotes blood flow in the
arteries, while sugar (sugar) carbohydrates give
the bread a sweet taste. For the human div to
have carbohydrates, people need to eat bread
regularly [27-31].

The main low carbohydrates are 5 per cent.
Consumption of bread to some extent satisfies the
div’s need for sugar.

Table 1. Satisfaction of carbohydrates in bread by the human div

Nutrients

Average daily

requirement,

g.

Contains 500 g of

bakery products g.

Satisfaction of

human needs,

percentage (%)

Starch and dextrins

425

222,4

52,3

Mono and

disaccharides

75

14,3

19,1

Ballast substances

(hemicellulose and

cellulose)

25

19,7

78,8


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(ISSN

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VOLUME

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MPACT

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(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































Consumption of 500 g of the above bread satisfies
the div's need for starch and dextrin by 52.3%,
mono and disaccharides by 19.1%, and ballast by
78.8%. The higher the consumption of dairy
products, the greater the need for sugar [32-35].

Satisfaction of the needs of the human div for
organic acids in bread products. Organic acids
activate the digestive system, lower the pH of the
environment and help to change the microflora in
a way that is suitable for these organs. If a person
consumes 500 grams of bread a day, his acid
needs will be met by 54.2%. As you can see, bread
is very important in this regard [36-39].

The fats in bread meet the needs of the human
div. When fats (lipids) are oxidized in the div,
they release the most energy from nutrients. They
are part of tissues and cells, including nerve

tissue. Fats are solvents for vitamins A and D,
which help digest them. Fats contain unsaturated
fatty acids, phospholipids and other biologically
active substances.

The average daily requirement of adult human
fats, which are high in unsaturated fatty acids and
phosphatides, is that the amount of these
substances contained in the above-mentioned
500 g of bread products and the amount of these
substances are not sufficient to meet human
needs. are given in the data table [40-41].

By consuming 500 g of the above-mentioned
bread varieties, the div: needs fats by 15.0%,
vegetable oils by 60.0%, unsaturated fatty acids
by 66.6%, and phosphatides while it satisfies 15.6
per cent.

Table 2. The fats in bread meet the needs of the human div

Nutrients

Average daily

requirement, g.

Contains 500 g of

bakery products g.

Satisfaction of

human needs,

percentage (%)

Oils

90

13,5

15,0

Vegetable oils

22,5

13,5

60,0

Highly unsaturated

fatty acids

4

2,67

66,7

Phosphatides

5

0,78

15,6

The functions of minerals vary. Calcium,
phosphate and magnesium maintain the normal
state and function of the skeleton; fluoride helps
ensure tooth enamel is resistant to caries; iron
and copper act as oxygen carriers; sodium and
potassium

maintain

a

normal

osmotic

environment in blood cells; chlorine is involved in

the formation of gastric juices necessary for the
digestion of food; cobalamin is a component of
vitamin B12 Iodine deficiency in water and food
leads to ringworm disease [42-44].

Important minerals include calcium, phosphorus,
and magnesium, which enter the div through


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)

(2022:

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food and keep bones in good condition, while
iron, which is part of haemoglobin, plays an
important role in blood circulation. Insufficient
intake of iron and deficiency of this substance in
the div can lead to anaemia. Iron also plays an
important role in the oxidative processes that
provide energy to the div.

If a person does not get enough nutrition and is
not supported by minerals, it will definitely affect
his health and mood. Children, as well as pregnant
women and women of childbearing age, need 3-5
times more iron than men [45-47].

We eat bread every day, and nothing else can
replace it; we love obi bread, shirmoy bread,
sweet cakes, greasy patties or pancakes, snails,
various pastries and sweets, pryaniks, biscuits.
They decorate our table every day, enriching our
bodies with many useful and necessary
substances.

Why is flour enriched? The fact is that we eat
bread every day and several times. This is
because our div needs to get enough vitamins
and iron every day [48].

In our country, great attention is paid to the
enrichment of flour, bread with iron, medicinal
folic acid, various trace elements, and, ultimately,
to the protection of the entire population, or more
precisely, all mothers and children from anaemia
[44-49].

At present, the country pays constant attention to
improving the quality of flour and bakery
products, enriching them with additional
micronutrients that are useful for humans. In

particular, in order to ensure the health of the
population, prevent iron deficiency in children
and women, as well as to prevent anaemia, the
first-grade flour produced in the mills of the
enterprises of the system is enriched with
complete mineral-vitamin mixtures.

Today, basically, 1 ton is 120 gr. vitamin-mineral
compounds are added. The mixture contains
various trace elements and 4 types of vitamins.
The mixture contains niacin, riboflavin, thiamine,
folic acid, as well as trace elements of iron and
zinc. This helps to replenish the vitamins lost
during wheat processing.

There are many options for enriching bread
products with micronutrients in the world
market today, and it is important that each
manufacturer offers its customers a tasty and
healthy product, using the suggestions of foreign
manufacturers.

R

EFERENCES

1.

Sattarova, B., Shodiev, D., & Haqiqatkhon,
D. (2021). The determination of the
composition and structure of ferrocenyl
benzoic acids by mass spectrometric and
potentiometric

methods.

Innovative

Technologica:

Methodical

Research

Journal, 2(11), 56-58.

2.

Nabievna, S. B., & Adxamjonovich, A. A.
(2021). The chemical composition and
properties of chicken meat. Innovative
Technologica:

Methodical

Research

Journal, 2(10), 25-28.


background image

Volume 02 Issue 04-2022

39



International Journal of Advance Scientific Research
(ISSN

2750-1396)

VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































3.

Саттарова, Б. Н., Аскаров, И. Р., &
Джураев, А. М. (2018). Некоторые
вопросы классификации куриного
мяса. Universum: химия и биология, (11
(53)), 36-38.

4.

Саттарова, Б. Н., Аскаров, И. Р., Хакимов,
М. У., & Мадалиев, Т. А. (2019). Влияние
полученных

биостимуляторов

на

повышение живой массы цыплят.
Universum: химия и биология, (12 (66)).

5.

Саттарова, Б. Н., Омонов, Н. О. Ў., &
Уринов, Х. К. У. (2021). Определение
антиоксидантов в местном курином
мясе на хромато-масс-спектрометре.
Universum: технические науки, (5-5
(86)), 6-8.

6.

Намозов, А. А., Аскаров, И. Р., &
Саттарова, Б. Н. (2011). Анализ
синтетических

красителей

в

безалкогольных напитках методом
капиллярного электрофореза. Вестник
Белгородского

государственного

технологического университета им. ВГ
Шухова, (3), 120-123.

7.

Саттарова, Б. Н., Асқаров, И. Р., &
Джураев, А. М. (2018). Товуқ гўштининг
кимёвий таркибини ўрганиш орқали
инсон саломатлигини муҳофаза қилиш.
АнДУ Илмий хабарномаси, (3), 31-33.

8.

Sattarova, B., & Xurshid, A. (2022).
Importance

of

missella

refining

technology for vegetable oils. Innovative
Technologica:

Methodical

Research

Journal, 3(01), 42-46.

9.

Sattarova, B., & Alieva, F. (2022).
Equipment for capillary electrophoresis

(cef) for the production of soft drinks in
the food industry control method using.
Innovative Technologica: Methodical
Research Journal, 3(01), 47-51.

10.

Sattarova, B., & Mokhlaroyim, K. (2022).
Extraction of oil by pressing. Innovative
Technologica:

Methodical

Research

Journal, 3(02), 8-13.

11.

Sattarova, B., & Saidmakhammadjon, J.
(2022). Factors affecting the quality of
vegetable

products

and

canned

vegetables. Innovative Technologica:
Methodical Research Journal, 3(02), 14-
19.

12.

Sattarova, B., & Xurshid, A. (2021).
Methods of cleaning micelles in the
production

of

vegetable

oils.

In

Interdisciplinary Conference of Young
Scholars in Social Sciences (pp. 293-296).

13.

Атамухамедова, М., Абдугаппаров, А.,
Михеева, А., & Ёрматов, Г. (2019).
Влияние умственной деятельности у
учащихся на газообмен в различных
экологических условиях. Символ науки,
(3), 81-82.

14.

Атамухамедова, М. Р., Саидова, А. Я., &
Исраилжанов,

С.

И.

(2018).

Функциональные сдвиги в организме
детей в неблагоприятных условиях
окружающей среды. In Проблемы и
перспективы

развития

экспериментальной науки (pp. 136-
138).

15.

Atamukhamedova, M. R., Eminov, A. Y., &
Boratov, O. M. (2019). Changes in the
respiratory and blood system as a result of


background image

Volume 02 Issue 04-2022

40



International Journal of Advance Scientific Research
(ISSN

2750-1396)

VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































physical exercises. Scientific Bulletin of
Namangan State University, 1(10), 317-322.

16.

Rakhimzhanovna, A. M., Adkhamzhanovich,
A. A., & Avazkhanovich, E. A. (2021).
Physical performance indicators in young
swimmers.

Innovative

Technologica:

Methodical Research Journal, 2(11), 59-62.

17.

Атамухамедова, М. Р., & Саидова, А. Я.
(2020). Питание при железодефицитной
анемии. In Новая наука: история
становления, современное состояние,
перспективы развития (pp. 267-269).

18.

Атамухамедова, М. Р., & Саидова, А. Я.
(2020). Основные правила питания при
занятиях спортом. In Новая наука:
история

становления,

современное

состояние, перспективы развития (pp.
265-267).

19.

Атамухамедова, М., Кузиев, О., &
Исроилжонов,

С.

(2019).

Уровень

вентиляции и произвольное апноэ
дыхания.

Наука

В

Современном

Обществе:

Закономерности

И

Тенденции, 265.

20.

Атамухамедова, М. Р., & Эргашев, А. А.
(2021).

Санитарно-гигиеническое

значение

вентиляции

производственных

помещений.

Интернаука, (37-1), 19-21.

21.

Атамухамедова, М. Р., Аминжанов, А. А., &
Исраилжанов,

С.

И.

(2018).

Экологические

особенности

энергетического метаболизма у детей в
связи с антропогенными изменениями
во внешней среде. Проблемы И

Перспективы

Развития

Экспериментальной Науки, 134.

22.

Атамухамедова, М. Р., & Аминжанов, А. А.
(2021).

Показатели

физической

работоспособности у молодых пловцов.
Интернаука, (37-1), 9-10.

23.

Atamukhamedova, M. R., Yormatov, G. S., &
Erkaev, E. A. (2019). Relations between
basic exchange and sprint. Scientific
Bulletin of Namangan State University,
1(10), 304-308.

24.

Атамухамедова, М. Р. (2021). Анализ
сырья

и

методы

приготовления

сложных удобрений. Интернаука, (37-2),
5-7.

25.

Атамухамедова, М. Р. (2022). Адаптивные
изменения систем внешнего дыхания
детей и подростков при мышечной
деятельности. Universum: медицина и
фармакология, (2 (85)), 16-18.

26.

Атамухамедова, М., & Саидова, А. (2021).
Влияние

возрастных

особенностей

организма на обмен веществ. In
Interdisciplinary Conference of Young
Scholars in Social Sciences (pp. 287-292).

27.

Atamukhamedova, M. R., & Erkaev, E. A.
(2020). Physiological indicators of the div
of adolescents engaged in swimming.
Scientific Bulletin of Namangan State
University, 2(11), 362-367.

28.

Atamukhamedova, M. R., & Erkaev, E. A.
(2020). Methods of distance learning of
biology course in higher educational
institutions. Scientific Bulletin of Namangan
State University, 2(10), 354-358.


background image

Volume 02 Issue 04-2022

41



International Journal of Advance Scientific Research
(ISSN

2750-1396)

VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































29.

Холдаров, Д. М., Шодиев, Д. А., &
Райимбердиева, Г. Г. (2018). Геохимия
микроэлементов

в

элементарных

ландшафтах

пустынной

зоны.

Актуальные проблемы современной
науки, (3), 77-81.

30.

Шодиев, Д. А., & Нажмитдинова, Г. К.
(2021). Пищевые добавки и их значение.
Universum: технические науки, (10-3
(91)), 30-32.

31.

Shodiev, D., Haqiqatkhon, D., & Zulaykho, A.
(2021). Useful properties of the amaranth
plant. ResearchJet Journal of Analysis and
Inventions, 2(11), 55-58.

32.

Алиева, Ф. А. К., Шодиев, Д. А. У., &
Далимова, Х. Х. К. (2021). УФ-видимый
записывающий спектрофотометр уф-
2201 спектрофотометр исследование
синтетических

красителей

в

безалкогольных напитках. Universum:
технические науки, (11-3 (92)), 66-69.

33.

Шодиев, Д. А. У. (2021). Нажмитдинова
ГККА

Специфические

аспекты

производства

продуктов

питания.

Universum: технические науки, (3-2), 84.

34.

Shodiev, D., & Hojiali, Q. (2021). Medicinal
properties of amaranth oil in the food
industry. In Interdisciplinary Conference of
Young Scholars in Social Sciences (pp. 205-
208).

35.

Шодиев Д. А. У., Расулова У. Н. К. Значение
амарантового

масла

в

медицине

//Universum: технические науки. – 2022.
– №. 1-2 (94). – С. 69-72.

36.

Kholdarov, D., Sobirov, A., Shodieva, G.,
Sobirova, A., Abaralieva, S., Ibragimova, S., &

Yakubova, N. (2021, July). On general
characteristics and mechanical composition
of

saline

meadow

saz

soils.

In

Конференции.

37.

Guljakhon, N. (2021). THE ROLE OF THE
STEVIA PLANT IN THE FOOD INDUSTRY. In
Interdisciplinary Conference of Young
Scholars in Social Sciences (pp. 334-338).

38.

Yuldasheva, S. K., Azamov, O. S., Gulomov, S.
Y., & Mukhammedov, M. M. (2021). The
function of regulations quantity nuts afids
with entomofags. Asian Journal of
Multidimensional Research (AJMR), 10(3),
393-397.

39.

Yuldasheva, S. Q. (2021). The development
cycles of nut aphid generation upper leaves
in the central and mountain surrounding
plains of Fergana valley. ACADEMICIA: An
International Multidisciplinary Research
Journal, 11(3), 1582-1586.

40.

Юлдашева, Ш. К. (2016). Значение
насекомых в биологической защите
растений.

Актуальные

научные

исследования в современном мире, (5-2),
29-33.

41.

Абдукаримова, Н. У., & Юлдашева, Ш. К.
(2016). Роль насекомых паразитов в
борьбе с вредителями агроцезонов
ферганской

долины.

Актуальные

научные исследования в современном
мире, (5-2), 10-13.

42.

Yuldasheva, S. K. (2020). Characteristics of
vertical regional distribution of sap in
nature. ACADEMICIA: An International
Multidisciplinary Research Journal, 10(11),
2135-2139.


background image

Volume 02 Issue 04-2022

42



International Journal of Advance Scientific Research
(ISSN

2750-1396)

VOLUME

02

I

SSUE

04

Pages:

34-42

SJIF

I

MPACT

FACTOR

(2021:

5.478

)

(2022:

5.636

)

METADATA

IF

7.356















































43.

Yuldasheva, S. K. (2020). SEAsonal quantity
dynamics of leaf top nut aphids. Scientific
Bulletin of Namangan State University, 2(4),
85-92.

44.

Юлдашева,

Ш.

(2010).

Влияние

почвенно-климатических условий на
биологию и распределение ореховых
вредителей. In Актуальные проблемы
энтомологии:

Материалы

научно-

практической конференции. Фергана (p.
7).

45.

Kobiljonovna,

Y.

S.

(2022).

Little

characteristics of bees distributed in the
conditions of the fergana valley. Innovative
Technologica: Methodical Research Journal,
3(02), 41-48.

46.

Yuldasheva, S. Q., & Khabibjonova, O.
(2021). Bioecological Properties And
Significance Of Some Rabbit Breeds. The
American Journal of Applied sciences,
3(05), 12-16.

47.

Yuldasheva, S. Q. (2021). Bioecological
features of the bracanoid family in Fergana
Valley. Asian Journal Of Multidimensional
Research, 10(4), 965-968.

48.

Yuldasheva, S. Q., & Soyibnazarov, B. E.
(2021). Bio ecological properties and
significance of california red worm.
ACADEMICIA:

An

International

Multidisciplinary Research Journal, 11(4),
1946-1950.

49.

Yuldasheva, S. Q. (2020). Characteristics of
distribution of aphis craccivora aphid in the
vertical regions of southern fergana.
Theoretical & Applied Science, (5), 852-854.

References

Sattarova, B., Shodiev, D., & Haqiqatkhon, D. (2021). The determination of the composition and structure of ferrocenyl benzoic acids by mass spectrometric and potentiometric methods. Innovative Technologica: Methodical Research Journal, 2(11), 56-58.

Nabievna, S. B., & Adxamjonovich, A. A. (2021). The chemical composition and properties of chicken meat. Innovative Technologica: Methodical Research Journal, 2(10), 25-28.

Саттарова, Б. Н., Аскаров, И. Р., & Джураев, А. М. (2018). Некоторые вопросы классификации куриного мяса. Universum: химия и биология, (11 (53)), 36-38.

Саттарова, Б. Н., Аскаров, И. Р., Хакимов, М. У., & Мадалиев, Т. А. (2019). Влияние полученных биостимуляторов на повышение живой массы цыплят. Universum: химия и биология, (12 (66)).

Саттарова, Б. Н., Омонов, Н. О. Ў., & Уринов, Х. К. У. (2021). Определение антиоксидантов в местном курином мясе на хромато-масс-спектрометре. Universum: технические науки, (5-5 (86)), 6-8.