%0 Journal Article
%T USlNG SWEET POTATO POWDER HYDROLYSATE FOR DIRECT FERMENTATION OF L-MALIC ACID BY ASPERCILLUS FLAVUS<br>黄曲霉发酵薯干粉水解液生产L－苹果酸
%A Jin Qirong
%A Xu Ganrong
%A Bao Huiyan
%A Wu Yanping
%A <br>金其荣
%A 许赣荣
%A 包惠燕
%A 吴燕萍
%J 微生物学通报
%D 1995
%I 
%X A strain of Aspergillus flauut TH5007 producing L-malic acid was isolatedand selected after a series of subsequent mutation. Various fermentation conditions werestudied to obtain process optimization, characterized by the direct fermentation with thehydrolysate from sweet potato powder. The concentration of L-malic acid in the fermentedbroth can reached to about 6.0%. Among the total acids in the ferinentation broth, Thecontent of malic acid amounts to above 72%. Citric aicd predominanted in the other organicacids than malic acid. The content of fumaric acid can be controlled below 0.02%. Produ-ction of L-malic acid with the fed-batch process is better than that with the batch process.
%K L-Malic acid
%K Direct fermentation process
%K Aspergillus flavus
%K Sweet<br>L－苹果酸
%K 直接发酵
%K 黄曲霉菌
%K 薯干粉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=78024727B5F4EF6AA9CA8E605B5FC464&aid=77159683ECBA11ED4B82254BF3FEA840&yid=BBCD5003575B2B5F&vid=BC12EA701C895178&iid=94C357A881DFC066&journal_id=0253-2654&journal_name=微生物学通报&referenced_num=0&reference_num=0