Effect of Processing on the Antioxidant Capacity of
Strawberry Beverages. ORAC values of control beverage
(D-NStr) were significantly reduced after all processing
conditions compared to unprocessed D-NStr (P < 0.001)
(Figure 2A). No significant changes in ORAC values of ND-Str
were apparent when beverages were treated with pressures at
200 MPa for 15 min and at 600 MPa for 1 and 15 min
compared to unprocessed ND-Str (P > 0.05) (Figure 2B).
However, at higher pressures, 700−800 MPa for 1 min, and
after HTST processing, ORAC values of ND-Str were
significantly reduced compared to unprocessed ND-Str (P <
0.001) (Figure 2B). In contrast, strawberry formulations
containing dairy/milk (D-Str) resulted in a significant increase
in ORAC values when treated with HPP at 200 MPa for 15 min
and 600 MPa for 1 and 15 min compared to unprocessed D-Str
beverage samples (P < 0.001) (Figure 2C). There were no
significant changes in ORAC values after HPP at 700−800 MPa
for 1 min compared to unprocessed D-Str (P > 0.05); however,
ORAC values were significantly reduced in response to HTST
compared to unprocessed D-Str beverage samples (P < 0.001)
(Figure 2C). Changes in FRAP are shown in Figure (3). No
significant changes in FRAP were apparent for beverages with
no strawberry (D-NStr) in response to high-pressure treatment
of 200 MPa for 15 min and 600 MPa for 1 and 15 min
compared to unprocessed to D-NStr (P > 0.05) (Figure 3A).
However, FRAP values were significantly reduced when D-NStr
samples were subjected to high pressure at 700 and 800 MPa
for 1 min and HTST compared to unprocessed D-NStr (P <
0.001) (Figure 3A). The antioxidant capacity measured by
FRAP in ND-Str was significantly reduced after all processing
conditions compared to unprocessed ND-Str (P < 0.001)
(Figure 3B). No significant changes in FRAP were apparent for
beverages with dairy and strawberry (D-Str) in response to
pressure treatments at 200 MPa for 15 min and at 600 MPa for
1 and 15 min (P > 0.05). In contrast, when HPP at 700 and 800
MPa was applied for 1 min of holding, FRAP was significantly
reduced in the D-Str beverage sample
Effect of Processing on the Antioxidant Capacity of
Strawberry Beverages. ORAC values of control beverage
(D-NStr) were significantly reduced after all processing
conditions compared to unprocessed D-NStr (P < 0.001)
(Figure 2A). No significant changes in ORAC values of ND-Str
were apparent when beverages were treated with pressures at
200 MPa for 15 min and at 600 MPa for 1 and 15 min
compared to unprocessed ND-Str (P > 0.05) (Figure 2B).
However, at higher pressures, 700−800 MPa for 1 min, and
after HTST processing, ORAC values of ND-Str were
significantly reduced compared to unprocessed ND-Str (P <
0.001) (Figure 2B). In contrast, strawberry formulations
containing dairy/milk (D-Str) resulted in a significant increase
in ORAC values when treated with HPP at 200 MPa for 15 min
and 600 MPa for 1 and 15 min compared to unprocessed D-Str
beverage samples (P < 0.001) (Figure 2C). There were no
significant changes in ORAC values after HPP at 700−800 MPa
for 1 min compared to unprocessed D-Str (P > 0.05); however,
ORAC values were significantly reduced in response to HTST
compared to unprocessed D-Str beverage samples (P < 0.001)
(Figure 2C). Changes in FRAP are shown in Figure (3). No
significant changes in FRAP were apparent for beverages with
no strawberry (D-NStr) in response to high-pressure treatment
of 200 MPa for 15 min and 600 MPa for 1 and 15 min
compared to unprocessed to D-NStr (P > 0.05) (Figure 3A).
However, FRAP values were significantly reduced when D-NStr
samples were subjected to high pressure at 700 and 800 MPa
for 1 min and HTST compared to unprocessed D-NStr (P <
0.001) (Figure 3A). The antioxidant capacity measured by
FRAP in ND-Str was significantly reduced after all processing
conditions compared to unprocessed ND-Str (P < 0.001)
(Figure 3B). No significant changes in FRAP were apparent for
beverages with dairy and strawberry (D-Str) in response to
pressure treatments at 200 MPa for 15 min and at 600 MPa for
1 and 15 min (P > 0.05). In contrast, when HPP at 700 and 800
MPa was applied for 1 min of holding, FRAP was significantly
reduced in the D-Str beverage sample
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