Table 1.

Seasonal variation of 5 less-important antioxidants in bamboo leaves (n = 6).

Month of Harvest	Caffeic Acid (μg/g, DW)	Orientin (μg/g, DW)	p-Coumaric Acid (μg/g, DW)	Homovitexin (μg/g, DW)	Ferulic Acid (μg/g, DW)
January	0.37 ± 0.003	1.78 * ± 0.012	0.98 * ± 0.005	1.04 * ± 0.018	0.17 ± 0.002
February	0.41 ± 0.008	0.98 * ± 0.007	0.73 ± 0.009	1.08 * ± 0.023	0.12 ± 0.001
March	0.39 ± 0.003	0.30 ± 0.002	0.41 ± 0.004	1.06 * ± 0.013	0.15 ± 0.001
April	0.37 ± 0.002	0.45 ± 0.004	0.50 ± 0.007	1.16 * ± 0.021	0.12 ± 0.001
May	0.72 ** ± 0.007	1.41 * ± 0.009	1.33 ** ± 0.007	0.58 ± 0.008	0.14 ± 0.001
June	0.64 ** ± 0.004	2.32 ** ± 0.016	1.47 ** ± 0.012	0.67 ± 0.006	0.17 ± 0.003
July	0.43 ± 0.003	3.04 ** ± 0.019	1.39 ** ± 0.019	0.79 ± 0.011	0.18 ± 0.003
August	0.47 * ± 0.004	2.76 ** ± 0.013	1.04 * ± 0.016	0.61 ± 0.005	0.18 ± 0.002
September	0.40 ± 0.008	4.55 ** ± 0.018	0.58 ± 0.008	1.19 * ± 0.020	0.39 * ± 0.009
October	0.41 ± 0.006	6.23 ** ± 0.025	0.48 ± 0.006	1.59 ** ± 0.025	0.44 * ± 0.006
November	0.39 ± 0.003	3.44 ** ± 0.037	0.55 ± 0.009	1.63 ** ± 0.017	0.34 * ± 0.005
December	0.38 ± 0.004	4.66 ** ± 0.052	0.88 * ± 0.013	1.55 ** ± 0.029	0.30 * ± 0.002

^*p < 0.05;

^**p < 0.01.