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Table 1 Effect of US-assisted impregnation on nutritional parameters

From: Effects of sodium alginate and calcium on quality attributes of Shepherd’s purse under ultrasound impregnation during blanching processing

Treatment

Ascorbic acid mg/100 g DW

Phenolic compounds mg/g

Chlorophyll

mg/g

Soluble Solids

°Brix

Calcium

mg/100 g

Gallic acid

Protocatechuic acid

Chlorogenic acid

Rutin

CK

1.96 ± 0.01f

4.06 ± 0.09f

2.12 ± 0.01e

3.87 ± 0.03e

7.99 ± 0.06e

5.19 ± 0.13e

1.25 ± 0.05d

10.71 ± 0.26e

Ca

3.40 ± 0.03d

5.04 ± 0.08d

3.52 ± 0.11c

4.60 ± 0.04c

8.85 ± 0.18c

5.68 ± 0.18d

1.47 ± 0.14bc

15.27 ± 0.35a

Gl

2.92 ± 0.26e

5.31 ± 0.06b

2.69 ± 0.01d

5.09 ± 0.05b

9.42 ± 0.06b

6.07 ± 0.23d

1.92 ± 0.18a

12.21 ± 0.10c

Gl + Ca + US5

4.83 ± 0.00b

5.37 ± 0.01b

2.91 ± 0.05d

5.19 ± 0.12b

9.89 ± 0.13a

6.57 ± 0.12c

1.92 ± 0.15a

12.24 ± 0.45c

Gl + Ca + US15

4.39 ± 0.01c

3.74 ± 0.01g

2.60 ± 0.03d

3.68 ± 0.11f

7.32 ± 0.07f

5.21 ± 0.22e

1.57 ± 0.14b

7.67 ± 0.11f

Al

4.40 ± 0.08c

4.63 ± 0.02e

3.71 ± 0.05b

3.80 ± 0.03ef

8.35 ± 0.19d

8.07 ± 0.36a

1.45 ± 0.10bc

12.21 ± 0.08c

Al + Ca + US5

4.90 ± 0.03ab

5.16 ± 0.01c

4.01 ± 0.04a

4.35 ± 0.04d

9.45 ± 0.05b

5.71 ± 0.12d

1.30 ± 0.06cd

11.68 ± 0.07d

Al + Ca + US15

5.04 ± 0.09a

5.49 ± 0.01a

4.08 ± 0.05a

5.45 ± 0.05a

9.96 ± 0.06a

6.62 ± 0.19c

1.45 ± 0.18bc

13.63 ± 0.16b

  1. Data points with different letters in the same column were significantly different at P < 0.05