With cellulose hydrolyte as raw material to ferment citric acid by Aspergillus niger at constant temperature and under oscillation temperature were discussed and compared.

麦草经碱-氧-蒽醌蒸煮脱木素后素。以素酶酶解素后制的素酶解波为原料，在黑曲霉的作用下发酵制取柠檬酸。