and manganese, and determine the effect of enriched whey on the quality and
nutritional value of wheat bread products.
Objects of research are sour milk whey, cheese whey, and desalted whey before
and after electrical discharge treatment, as well as wheat bread.
The electrical discharge treatment was done in an experimental technological
complex consisting of a discharge pulse generator, discharge chamber with magnesium
and/or manganese electrode system and conductive layer of corresponding metal
granules with a regulated chamber volume of 100 to 3000 cm
3
, control unit, and
measuring and auxiliary devices (Fig. 1).
Figure 1. Photograph of an experimental technological complex for the electrical
discharge treatment of milk whey
Table 1 Electrical parameters of the discharge circuit and modes of milk whey
treatment
Electrical circuit parameters
Values
Capacitor charge voltage, (U), V
80–100
Capacitor capacitance, (C), µF
100
Discharge circuit inductance, (L), µH
approximately 1
Angle of phase corrector, °
155
Duty cycle, %
4
Frequency, Hz
100
Pulse duration, µs
200
Reaction chamber volume, cm
3
300
Whey treatment duration, s
30–180
Whey temperature, °C
20 ±2
Milk whey was subjected to centrifugal purification prior to treatment in order to
separate the particles of coagulated casein.
Milk whey was treated in reaction chambers with conductive layer of magnesium
or manganese granules and corresponding electrodes. After the electrical discharge
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