Malvidin 3 5 o diglucoside chloride malvin

Hydrochloric acid, sodium hydroxide, glacial acetic acid, ferric chloride hexahydrate, ortho-phosphoric acid (≥85%), acetonitrile, sulfuric acid, L-(+)-tartaric acid, D-fructose, and 0.1 N sodium hydroxide were purchased from Fisher Scientific (Santa Clara, CA, USA). Sodium chloride, bovine serum albumin (BSA), (-)-epicatechin (≥90%), (+)-catechin (≥98%), caffeic acid (≥98%), malic acid (≥99%), and quercetin-3-glucoside (≥98%) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Potassium metabisulfite (≥97%), sodium dodecyl sulfate, and ammonium dihydrogen phosphate (>98%) were purchased from Acros Organics (Geel, Belgium). Triethanolamine was purchased from Aqua Solutions, Inc. (Deer Park, TX, USA). Commercial malvidin-3-O-glucoside chloride (oenin) (≥95%) and malvidin-3,5-O-diglucoside chloride (malvin) (≥95%) were provided by Extrasynthese (Genay, France). Milli-Q water used for the preparation of solutions was obtained from a Barnstead MicroPure Water Purification System (Thermo scientific^®, Waltham, MA, USA).

Acetonitrile, D-fructose, ferric chloride hexahydrate, glacial acetic acid, hydrochloric acid, L-(+)-tartaric acid, ortho-phosphoric acid (≥85%), sodium hydroxide, sulfuric acid, and 0.1 N sodium hydroxide were purchased from Fisher Scientific (Santa Clara, CA, USA). Bovine serum albumin (BSA), caffeic acid (≥98%), (+)-catechin (≥98%), (−)-epicatechin (≥ 90%), malic acid (≥99%), quercetin-3-glucoside (≥98%), and sodium chloride were purchased from Sigma-Aldrich (St. Louis, MO, USA). Ammonium dihydrogen phosphate (>98%), potassium metabisulfite (≥97%), and sodium dodecyl sulfate were purchased from Acros Organics (Geel, Belgium). Commercial malvidin-3-O-glucoside chloride (oenin) (≥95%) and malvidin-3,5-O-diglucoside chloride (malvin) (≥95%) were provided by Extrasynthese (Genay, France). Triethanolamine was purchased from Aqua Solutions, Inc. (Deer Park, TX, USA). Milli-Q grade water (18.2 MΩ cm resistivity) used for the preparation of reagent, solutions, and high-performance liquid chromatography with diode array detector (HPLC-DAD) mobile phase was obtained from Barnstead MicroPure Water Purification System (Thermo scientific^®, Waltham, MA, USA).