Effects of Additive β-Cyclodextrin on the Performances of Green Tea Infusion

Table 1

Effects of β-CD on the color of tea infusion.

Extraction methods		Storage time (days)
		0	10	20
Conventional extraction	L	95.397 ± 3.000	89.449 ± 3.220	60.275 ± 3.307
	a	−3.304 ± 0.231	−2.552 ± 0.099	14.440 ± 3.211
	b	17.915 ± 1.091	27.890 ± 1.736	69.125 ± 6.372
Extraction with β-CD	L	95.575 ± 3.788	90.071 ± 3.639	72.063 ± 4.579
	a	−3.666 ± 0.0973	−3.022 ± 0.103	4.527 ± 1.100
	b	17.927 ± 2.306	26.885 ± 1.311	53.073 ± 3.043

Each value represents mean ± standard deviation (SD) of ten individual measurements. L: lightness; a: positive values (redness), negative values (greenness); b: positive values (yellowness), negative values (blueness).