Biosynthesis of valonia tannin hydrolase and hydrolysis of valonia tannin to ellagic acid by Aspergillus SHL 6

W Huang; J Ni; AGL Borthwick

doi:10.1016/j.procbio.2004.05.004

Biosynthesis of valonia tannin hydrolase and hydrolysis of valonia tannin to ellagic acid by Aspergillus SHL 6

W Huang^*, J Ni, AGL Borthwick

^*Corresponding author for this work

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

Using valonia tannin (an ellagitannin) as the substrate, factors influencing the yield of ellagic acid and biosynthesis of valonia tannin hydrolase by Aspergillus SHL 6 are investigated. Valonia tannin concentration, pH, temperature, carbon and nitrogen sources during the fermentation are identified as important hydrolysis parameters. The yield of ellagic acid and the hydrolase activity of valonia tannin both have maximum values (within the range of the tests) when 100 ml of culture medium containing 5.0 g 1(-1) of valonia tannin in a 250 ml conical beaker is incubated at 28 degreesC and initial pH from 4.5 to 5.0 using a rotary shaker at 120 rpm for 72 h. (C) 2004 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1245-1249
Number of pages	5
Journal	Process Biochemistry
Volume	40
Issue number	3-4
DOIs	https://doi.org/10.1016/j.procbio.2004.05.004
Publication status	Published - Mar 2005

Keywords / Materials (for Non-textual outputs)

valonia tannin
ellagitannin
Aspergillus SHL 6
tannase
EXTRACELLULAR TANNASE
BARK EXTRACTS
DETOXIFICATION
OPTIMIZATION
BACTERIA

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10.1016/j.procbio.2004.05.004

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@article{77711f73b02043f190335ca7b1515610,

title = "Biosynthesis of valonia tannin hydrolase and hydrolysis of valonia tannin to ellagic acid by Aspergillus SHL 6",

abstract = "Using valonia tannin (an ellagitannin) as the substrate, factors influencing the yield of ellagic acid and biosynthesis of valonia tannin hydrolase by Aspergillus SHL 6 are investigated. Valonia tannin concentration, pH, temperature, carbon and nitrogen sources during the fermentation are identified as important hydrolysis parameters. The yield of ellagic acid and the hydrolase activity of valonia tannin both have maximum values (within the range of the tests) when 100 ml of culture medium containing 5.0 g 1(-1) of valonia tannin in a 250 ml conical beaker is incubated at 28 degreesC and initial pH from 4.5 to 5.0 using a rotary shaker at 120 rpm for 72 h. (C) 2004 Elsevier Ltd. All rights reserved.",

keywords = "valonia tannin, ellagitannin, Aspergillus SHL 6, tannase, EXTRACELLULAR TANNASE, BARK EXTRACTS, DETOXIFICATION, OPTIMIZATION, BACTERIA",

author = "W Huang and J Ni and AGL Borthwick",

year = "2005",

month = mar,

doi = "10.1016/j.procbio.2004.05.004",

language = "English",

volume = "40",

pages = "1245--1249",

journal = "Process Biochemistry",

issn = "1359-5113",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Biosynthesis of valonia tannin hydrolase and hydrolysis of valonia tannin to ellagic acid by Aspergillus SHL 6

AU - Huang, W

AU - Ni, J

AU - Borthwick, AGL

PY - 2005/3

Y1 - 2005/3

N2 - Using valonia tannin (an ellagitannin) as the substrate, factors influencing the yield of ellagic acid and biosynthesis of valonia tannin hydrolase by Aspergillus SHL 6 are investigated. Valonia tannin concentration, pH, temperature, carbon and nitrogen sources during the fermentation are identified as important hydrolysis parameters. The yield of ellagic acid and the hydrolase activity of valonia tannin both have maximum values (within the range of the tests) when 100 ml of culture medium containing 5.0 g 1(-1) of valonia tannin in a 250 ml conical beaker is incubated at 28 degreesC and initial pH from 4.5 to 5.0 using a rotary shaker at 120 rpm for 72 h. (C) 2004 Elsevier Ltd. All rights reserved.

AB - Using valonia tannin (an ellagitannin) as the substrate, factors influencing the yield of ellagic acid and biosynthesis of valonia tannin hydrolase by Aspergillus SHL 6 are investigated. Valonia tannin concentration, pH, temperature, carbon and nitrogen sources during the fermentation are identified as important hydrolysis parameters. The yield of ellagic acid and the hydrolase activity of valonia tannin both have maximum values (within the range of the tests) when 100 ml of culture medium containing 5.0 g 1(-1) of valonia tannin in a 250 ml conical beaker is incubated at 28 degreesC and initial pH from 4.5 to 5.0 using a rotary shaker at 120 rpm for 72 h. (C) 2004 Elsevier Ltd. All rights reserved.

KW - valonia tannin

KW - ellagitannin

KW - Aspergillus SHL 6

KW - tannase

KW - EXTRACELLULAR TANNASE

KW - BARK EXTRACTS

KW - DETOXIFICATION

KW - OPTIMIZATION

KW - BACTERIA

U2 - 10.1016/j.procbio.2004.05.004

DO - 10.1016/j.procbio.2004.05.004

M3 - Article

SN - 1359-5113

VL - 40

SP - 1245

EP - 1249

JO - Process Biochemistry

JF - Process Biochemistry

IS - 3-4

ER -

Biosynthesis of valonia tannin hydrolase and hydrolysis of valonia tannin to ellagic acid by Aspergillus SHL 6

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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