Sunflower oleosome fraction and process for preparing it

A process for isolating a sunflower oleosome fraction, and the process comprises the steps, in order, of:

• a) Grinding sunflower seeds in the presence of an aqueous solution and obtaining a sunflower seed slurry having a pH of more than 7.2, wherein a reducing agent and/or an acidulant is added during the grinding and/or wherein a reducing agent and/or an acidulant is added to the obtained sunflower seed slurry;
• and
• b) Isolating from the sunflower seed slurry a sunflower oleosome fraction,
• wherein the reducing agent and/or an acidulant is selected from the group consisting of ascorbic acid, erythorbic acid, allyl isothiocyanate, cysteine, glutathione, dithiothreitol, sodium bisulfite, citric acid, malic acid, carnosic acid, any derivative thereof and any combination of two or more thereof.