To obtain a [beta]-nicotinamide mononucleotide ([beta]-NMN)-containing solid yeast extract from a safe yeast which has been eaten over a long time. To obtain a [beta]-NMN composition derived from a yeast. It was found that a [beta]-NMN-containing solid yeast extract can be obtained by extracting a yeast at a specific temperature and a specific pH value. By purifying [beta]-NMN from the [beta]-NMN-containing solid yeast extract or a liquid yeast extract, a [beta]-NMN composition derived from a yeast can be obtained.本發明之課題為：從有食用經驗之安全之酵母獲得含有β-菸鹼醯胺單核苷酸(β-nicotinamide mononucleotide)(β-NMN)之酵母萃取物，獲得來自酵母之β-NMN組成物。 本案發明者們發現藉由以特定溫度、pH從酵母萃取出酵母萃取物，可獲得含有β-NMN之酵母萃取物。此外，藉由從含有β-NMN之酵母萃取物或酵母萃取液純化β-NMN，可獲得含有來自酵母之β-NMN之組成物。
