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1. (Article ID: 9070)
Xue SJ, Chen L, Jiang H, Liu GL, Chi ZM, Hu Z, Chi Z
High pullulan biosynthesis from high concentration of glucose by a hyperosmotic resistant, yeast-like fungal strain isolated from a natural comb-honey
Food Chemistry 286 (2019)
123-128
A novel, yeast-like fungal strain, Aureobasidium melanogenum TN3-1, that was isolated from natural honey can actively transform 140.0 g/L of glucose into 110.29 ± 2.17 g/L of pullulan during fermentation, whereas A. melanogenum P16 and TN1-2 converted 140.0 g/L of glucose into only 45.81 ± 1.7 g/L and 48.7 ± 2.6 g/L of pullulan, respectively. It was noted that most of the cells in the culture of the strain TN3-1 were arthroconidia, while all of the yeast-like fungal cells of A. melanogenum P16 cultivated under the same conditions were blastoconidia. The cell sizes, cell walls and the number of small vacuoles of A. melanogenum TN3-1 were also much larger, thicker and higher, respectively, than those of A. melanogenum P16. The glycerol, trehalose and glycogen content in the A. melanogenum TN3-1 cells was higher than that of the A. melanogenum P16 and TN1-2 cells.
pullulan, arthroconidia, Aureobasidium spp., natural honey, osmophiles, small vacuoles
NCBI PubMed ID: 30827584Publication DOI: 10.1016/j.foodchem.2019.01.206Journal NLM ID: 7702639Publisher: Elsevier Applied Science Publishers
Correspondence: Chi ZM
ouc.edu.cn>; Chi Z ouc.edu.cn>
Institutions: College of Marine Life Sciences, Ocean University of China, Qingdao, China, Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, Department of Biology, Shantou University, Shantou, China
Methods: 13C NMR, 1H NMR, IR, TLC, enzymatic digestion, RT-PCR, cell growth, enzymatic assay, TEM, centrifugation
The publication contains the following compound(s):
- Compound ID: 12430
Structure type: polymer chemical repeating unit
Trivial name: pullulan
Compound class: EPS, O-polysaccharide, cell wall polysaccharide, glucan, polysaccharide
Reference(s) to other database(s): GTC:G71532WE, CCSD:
45938, CBank-STR:4859, GenDB:KY767023; GenDB:KY767024
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