Volume 02 Issue 11-2022
20
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
11
Pages:
20-24
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
Raisins are a natural product rich in vitamins and trace elements. A person needs them especially in the spring, when
a tired div goes through hard days. It is known that raisins are obtained in the process of drying grapes, this article
mainly describes the technology of obtaining raisins.
KEYWORDS
Oven, electric dryer, alkal, crop, berry, raw material, recipe, bundle, temperature, duration, storage
INTRODUCTION
Ways to get raisins
First you need to collect the crop and prepare it for the
harvesting process. Berries should be ripe, free from
various damage. You can dry grapes in different ways.
It is worth checking the different ways to choose the
most convenient for you. The main methods include:
•
Natural drying;
•
In the oven;
•
In an electric dryer;
•
With the use of alkali.
Raisin production in direct sunlight
Research Article
RAISIN EXTRACTION TECHNOLOGY
Submission Date:
November 01, 2022,
Accepted Date:
November 05, 2022,
Published Date:
November 16, 2022
Crossref doi:
https://doi.org/10.37547/ajast/Volume02Issue11-04
Khojamshukurov Nortoji Abdikholiqovich
Doctor of biological sciences, professor, Tashkent Institute of Chemical Technology, Uzbekistan
Omonturdiyeva Gulsora Ro’ziboy qizi
Master of the Tashkent Institute of Chemical Technology, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajast
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 11-2022
21
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
11
Pages:
20-24
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
This method is not the fastest, but it is economical and
cheap. The entire harvest should be checked, rotten
and damaged berries should be removed, and then
spread on a dry surface in the sun. It is not necessary to
remove the grapes from the brushes. From time to
time, once every few days, the fruits turn to the other
side. The method involves drying for up to three
weeks.
The easiest way to cook raisins from grapes at home in
the sun. Raw materials are dried on a baking sheet or
in trays with a net on the bottom, before which
garbage is selected from it. The product is exposed to
sunlight, and withered berries are periodically stirred.
It takes 2-4 weeks to dry depending on the weather.
Baking sheets are not kept outside on rainy days. The
sun makes the raisins hard and dry, but the mold does
not spoil them.
Production of raisins by natural drying. Grapes dry on ropes under the ceiling.
Oven device
This method requires the fruit to be removed from
the branches after the clusters have been
thoroughly washed in cold water. Excess moisture
is shaken from the brushes, after which healthy
ripe berries are selected for cooking. Fruits to
remove:
dry;
rotten;
affected by diseases and pests;
Volume 02 Issue 11-2022
22
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
11
Pages:
20-24
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
frozen.
Selected grapes are dipped in boiling soda
solution for 5 seconds. This method is necessary to
crack the skin, as a result of which moisture
evaporates faster.
After drying the grapes with a wafer towel, they
are spread on a baking sheet covered with baking
paper. You need to dry the product with the oven
door open and set the temperature to 50-60
degrees. The duration of the procedure is 10 hours
in total. From time to time, it is necessary to take
breaks, ensuring that the berries cool down.
Drying in an electric dryer
Grapes washed in one layer are placed on the trays
of an electric dryer. The first stage of drying takes
eight hours. And pallets need to be changed every
hour. After turning off the device, you need to let
it cool down and start the process again for eight
hours. For large grapes, two stages are not
enough, one more stage is required.
Some people use a different method: they
increase the number of approaches, reduce the
drying time to four hours. With this option, the
break is 2 hours. The total drying time varies from
twenty to twenty-five hours depending on the size
of the berries.
Raisins from white grapes: a recipe for cooking in an electric dryer
Volume 02 Issue 11-2022
23
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
11
Pages:
20-24
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Recipe:
1. Wash the bundles and drain the water.
2. Cut the fruits from the brushes and cut them
into pieces. Stack the sections on top of each
other. If one tray is empty, install it last.
3. The dryer is closed, the temperature is set to 58
° C, and the device is turned on for 15 hours.
4. Sections are rearranged in reverse order and
turn on the device for another 15 hours at the
same temperature.
5. The product is ready when the dryer turns off.
Alkaline method
The method consists in using alkali. Grape
branches, if possible, are fumigated with sulfur or
dipped in a boiling alkaline solution for 10 seconds.
40 grams of baking soda is used for 10 liters of
water. When you need to remove them quickly,
rinse with cool water and pat dry. In the room
hang branches processed with berries. To do this,
ready-made raisins, with drawers placed under
them, fell from the brushes and fell into them.
When drying with this method, direct sunlight
should not be allowed.
Compared to natural drying in the sun, this
method reduces cooking time by 3-4 times. After 5
or 10 days, the fruits are ready to eat.
How to determine the readiness of grapes
It is impossible to understand that the raisins are
ripe by focusing only on the time indicator. Drying
time varies depending on the variety, size, and
method used.
The released product has parameters that
determine its readiness:
Berries should not be sticky;
The total weight and volume of the products
received are several times less than the original
specification;
If you squeeze a raisin with your fingers, it will not
release liquid.
In this form, grapes can be stored for a long time.
It can be used as an independent dish or added to
pastries, salads, etc.
For better storage, dried fruits are stored at a
temperature of 5-6 degrees and a relative
humidity of 60 or 70%.
Volume 02 Issue 11-2022
24
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
02
I
SSUE
11
Pages:
20-24
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1121105677
METADATA
IF
–
5.582
Publisher:
Oscar Publishing Services
Servi
Checking if hung raisins are ready for indoor drying
REFERENCES
1.
Djavakyans YU.M., Gorbach V.I. Vinograd
Uzbekistana. Tashkent, 2001.g. S.240
2.
Mirzaev M.M., Rizaev R.M. Rekomendachii
po sushke vinograda v fermerskix
xozyaystvax. Tashkent, 2011 g. B. 6-21.
3.
E. A. SHreder., K. I. Baymetov., SH. M.
Axmedov O‘zbekiston fermer xujaliklarida
uzum
kuchatlarini
kupaytirish
texnologiyasi
bo‘yicha
tavsiyalar.
Toshkent, 2015.y. B. 4-11.
4.
Christensen, L.P., and Peacock, W.L. (20
April 2013) "The Raisin Drying Process"
Archived 12 June 2013 at the Wayback
Machine. Raisin Production Manual,
University of California at Davis.
5.
Raisin Production Manual Christensen, L.P
6.
https://paverakov.ru/uz/sdelat-izyum-v-
duhovke-kak-sdelat-izyum-iz-vinograda-
doma-protivopokazaniya-k-upotrebleniyu-
izyumnogo
