Nelumbo nucifera callus extract having increased content of gallic acid, method for preparing same, and whitening cosmetic composition containing same

A method for preparing a Nelumbo nucifera callus extract having an increased gallic acid content, the method comprising the steps of:

• (a) germinating a Nelumbo nucifera seed to obtain germinated Nelumbo nucifera tissue;
• (b) inducing a Nelumbo nucifera callus from the germinated Nelumbo nucifera tissue;
• (c) culturing the Nelumbo nucifera callus in a medium containing methyl jasmonic acid;
• and
• (d) extracting the Nelumbo nucifera callus culture having an increased gallic acid content.