Method for the enrichment of rebaudioside b and/or rebaudioside d in stevia-derived glycoside compositions using adsorb-desorb chromatography with a macroporous neutral adsorbent resin

(canceled)

(canceled)

(canceled)

The method according to claim 25, wherein the at least one elution solvent comprises about 20-35% w/w ethanol and about 65-80% w/w water.

The method according to claim 25, wherein the at least one elution solvent comprises about 25-33% w/w ethanol and about 67-75% w/w water.

(canceled)

The method according to claim 25, wherein the pH of the Stevia-derived glycoside solution ranges from a pH of about 5 to a pH of about 6.

(canceled)

The method according to claim 27, wherein the pH of the glycoside solution ranges from a pH of about 1 to a pH of about 3.

The method according to claim 27, wherein the at least one first elution solvent comprises about 40-60% w/w ethanol and about 40-60% w/w water.

(canceled)

18-20. (canceled)

A method of preparing an enriched composition comprising rebaudioside D, the method comprising the steps of:

• (A) contacting a macroporous neutral adsorbent resin with a glycoside solution, which solution has a pH from about 4 to about 6 and comprises rebaudioside D and at least one other steviol glycoside, so that at least a portion of glycosides in the glycoside solution are adsorbed onto the macroporous neutral adsorbent resin;
• and
• (B) contacting that macroporous neutral adsorbent resin with at least one elution solvent formulated to selectively elute rebaudioside D from the adsorbent and comprising about 10-40% w/w ethanol and about 60-90% w/w water, thereby eluting a composition enriched with rebaudioside D.