The term quellung reaction is identified in base64 scheme by the sequence cXVlbGx1bmcgcmVhY3Rpb24=, while the MD5 signature is equal to 7e31278b4e6beac881d1e8554bd08a4d. The ASCII encoding of quellung reaction in hexadecimal notation is 7175656c6c756e67207265616374696f6e.