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Table 3 Effect of storage time and temperature on individual flavonoids and phenolic acids content in rhizome extracts of ginger varieties

From: Changes in antioxidant and antibacterial activities as well as phytochemical constituents associated with ginger storage and polyphenol oxidase activity

Ginger varieties

Storage time (month)/temperature

Quercetin

Rutin

Catechin

Epicatechin

Kaempferol

Gallic acid

Ferulic acid

Cinnamic acid

Tannic acid

Halia Bentong

fresh

0.922 ± 0.113b

0.437 ± 0.034a

0.422 ± 0.027c

0.135 ± 0.016c

0.076 ± 0.014d

0.178 ± 0.056b

0.122 ± 0.018b

0.048 ± 0.016b

0.077 ± 0.011b

4/(5 °C)

0.916 ± 0.124b

0.430 ± 0.029a

0.402 ± 0.034c

0.133 ± 0.018c

0.075 ± 0.016d

0.172 ± 0.049b

0.116 ± 0.016b

0.04 ± 0.016b

0.068 ± 0.009b

8/(5 °C)

0.729 ± 0.105c

0.311 ± 0.041b

0.273 ± 0.022e

0.100 ± 0.022d

0.044 ± 0.014d

0.113 ± 0.021c

0.088 ± 0.015c

0.02 ± 0.010c

0.031 ± 0.008d

4/(15 °C)

0.511 ± 0.096d

0.168 ± 0.015c

0.127 ± 0.019f

ND

ND

0.100 ± 0.018c

0.042 ± 0.014d

ND

ND

8/(15 °C)

0.50 ± 0.088d

0.120 ± 0.011d

0.056 ± 0.013g

ND

ND

0.061 ± 0.011d

ND

ND

ND

Halia Bara

fresh

1.160 ± 0.126a

0.355 ± 0.032b

0.568 ± 0.059a

0.166 ± 0.063a

0.96 ± 0.124a

0.211 ± 0.042a

0.162 ± 0.063a

0.091 ± 0.026a

0.122 ± 0.019a

4/(5 °C)

1.100 ± 0.137a

0.322 ± 0.027b

0.517 ± 0.063a

0.144 ± 0.012b

0.86 ± 0.116a

0.210 ± 0.033a

0.146 ± 0.032a

0.083 ± 0.016a

0.120 ± 0.016a

8/(5 °C)

0.762 ± 0.092c

0.300 ± 0.042b

0.488 ± 0.034b

0.122 ± 0.017c

0.80 ± 0.114a

0.155 ± 0.024b

0.121 ± 0.017b

0.043 ± 0.031b

0.110 ± 0.013a

4/(15 °C)

0.426 ± 0.076e

0.156 ± 0.018c

0.416 ± 0.024c

0.110 ± 0.016d

0.619 ± 0.076b

0.110 ± 0.019c

0.066 ± 0.051c

ND

ND

8/(15 °C)

0.281 ± 0.049f

0.112 ± 0.021d

0.362 ± 0.030d

0.064 ± 0.018e

0.522 ± 0.053c

0.056 ± 0.014d

0.029 ± 0.010e

ND

ND

  1. Data are means of triplicate measurements ± standard deviation. Means not sharing a common single letter in each column for each measurement were significantly different at p < 0.05. The units of all measurement are mg/g DM
  2. ND not detected