Table 1 Total phenolics contents of the extract of an apple cultivar (Malus domestica cv. Fuji) peel and the apple peel powder by three different powdering methods

Extraction solvent	Total phenolics contents (mg GAE/100 g sample)1)

	Ground apple peel	Freeze-dried apple peel powder	Hot-air dried apple peel powder	Ultrafine particle apple peel powder

Water	72±22)^dD	504±11^eB	728±9^cA	400±6^dC
20% MeOH	90±1^cD	692±3^dB	816±24^bA	522±6^cC
40% MeOH	94±2^bD	931±19^bA	881±5^aB	696±25^bC
60% MeOH	112±4^aD	1,013±29^aA	877±34^aB	772±29^aC
80% MeOH	98±4^bcD	907±6^bA	789±15^bB	646±32^bC
100% MeOH	75±2^dD	750±24^cA	657±14^dB	573±31^cC

¹⁾ Total phenolics contents are expressed as mg gallic acid equivalents (GAE)/100 g sample.
²⁾ Data are expressed as a mean±SD (n=3).
^a-eMean in a column by different superscripts are significant different at p<0.05 by Tukey’s multiple range test.
^A-DMean in a row by different superscripts are significant different at p<0.05 by Tukey’s multiple range test.