Table 3.
The chemical composition of pomegranate juice till electroflotation (1-2 test) and after electroflotation (3-6 tests)
E
x
perime
nt
ser
ies
No
.
o
f
the
sa
mp
les
H
eig
ht
o
f
selec
ted
sa
m-
ples
,с
m
Dry
s
ub
st
a
nce
, %
Su
g
a
r,
%
T
it
ra
ted
a
cid
%
T
a
nn
ic
a
nd
dy
er
s
ub
-
st
a
nces
,
g
/l
Nit
ro
g
en
a
min
o
a
cid
,
mg
/l
рН
F
e,
mg
/l
С
u mg
/l
Oxidizing ferments
Asco
rbic
o
x
ida
se
,
mg
/g
рН
5
,0
P
er
o
x
ida
se
mg
/g
рН
7
,5
,
Polyphenol
oxidase,
mg/g
рН
5
,0
рН
7
,5
1
1
0
19,0
15,3
0,89
0,81
229,6
3,35
13,1
1,0
1,5
5,6
2,8
2,8
2
120
19,0
15,6
0,89
0,92
302,4
3,35
12,5
0,8
1,4
5,6
3,1
2,8
3
0
19,0
15,3
0,89
0,86
302,4
3,35
14,6
1,1
1,5
3,9
3,1
2,8
4
40
19,0
15,3
0,89
0,90
240,8
3,3
13,7
0,4
1,25
5,0
3,9
3,1
5
80
19,0
15,6
0,89
0,81
229,5
3,3
12,5
1,1
5,0
3,6
3,1
6
120
19,0
15,3
0,89
1,05
229,6
3,3
12,5
1,25
5,0
3,6
3,3
2
1
0
17,6
14,6
0,79
0,81
202,4
3,4
15,2
0,5
2
120
17,2
14,3
0,77
0,73
254,6
3,4
16,4
0,4
3
0
17,4
14,3
0,77
0,76
255,2
3,4
17,0
0,3
4
40
17,4
14,3
0,78
0,71
234,7
3,4
16,1
0,3
5
80
17,4
14,3
0,77
0,68
203,2
3,4
17,0
0,3
6
120
17,4
14,3
0,77
0,75
202,8
3,35
16,0
As can be seen from the table 3 data, regardless of
the height of the samples obtained, that is, regardless of
the distance of the juice layer from the electrodes, there are
no significant changes in the indicators of pomegranate
juice, despite the fact that electroflotation is carried out
when the current density is high. In the process of elec-
troflotation, significant changes in dry matter, sugar,
titrated acid, tannic and dyes, nitrogen amino acids,
iron, copper and oxidative enzymes do not occur.
Thus, as a result of complex inspections, no nega-
tive effects on the electrolysis process in pomegranate
juice were found. It is possible to explain that there is no
such effect as follows. First, the juice does not remain
long (15-20 min) in the electroflotator and is carried out
at the effect of low electrical current density in the order
of 20-40 mA/cm
2
. Secondly, the changes that occur as a
result of electrolysis can occur not only in the liquid as
a whole, but only in the part that is in direct contact with
the surface of the electrodes, since electrochemical reac-
tions occur in the place where the liquid and the elec-
trodes overlap between the surface. The absence of tur-
bulent flows in the equipment creates conditions for the
fact that the bulk of the purified liquid does not come
into contact with the electrodes.
CONCLUSION
As a result of the research, it was
found that the method of electroflotation provides effec-
tive irrigation of pomegranate juice. Factors affecting
the electroflocation process were determined and their
alternative values were found. Organoleptic analysis was
conducted with the participation of scientific staff and
showed that electroflotation processing improves the ap-
pearance and taste of pomegranate juice. Practical and
theoretical study of the process of electroflotation in the
process of purification of pomegranate juice in labora-
tory and industrial conditions electroflotation method
served as the basis for the expansion of various indus-
tries.
Do'stlaringiz bilan baham: |