Abstract：
:A new technology of transforming ferulic acid, which was from waste residue of rice bran oil, into vanillin was developed by a combination of fungal strains Aspergillus niger CGMCC0774 and Pycnoporus cinnabarinus CGMCC1115. Various concentrations of ferulic acid were compared, and the highest yield reached 2.2 g l(-1) of vanillic acid by A. niger CGMCC0774 in a 25 l fermenter when concentration of ferulic acid was 4 g l(-1). The filtrate of A. niger CGMCC0774 culture was concentrated and vanillic acid in the filtrate was bio-converted into vanillin by P. cinnabarinus CGMCC1115. The yield of vanillin reached 2.8 g l(-1) when 5 g l(-1) of glucose and 25 g of HZ802 resin were supplemented in the bioconversion medium. The 13C isotope analysis indicated that delta13C(PDB) of vanillin prepared was much different from chemically synthesized vanillin.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zheng L,Zheng P,Sun Z,Bai Y,Wang J,Guo Xdoi
10.1016/j.biortech.2006.03.028subject
Has Abstractpub_date
2007-03-01 00:00:00pages
1115-9issue
5eissn
0960-8524issn
1873-2976pii
S0960-8524(06)00192-1journal_volume
98pub_type
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