Details
| Original language | English |
|---|---|
| Pages (from-to) | 4296-4303 |
| Number of pages | 8 |
| Journal | Journal of the Science of Food and Agriculture |
| Volume | 98 |
| Issue number | 11 |
| Early online date | 10 Feb 2018 |
| Publication status | Published - 12 Jul 2018 |
| Externally published | Yes |
Abstract
BACKGROUND: The disintegration of destarched wheat bran in water and sulfuric acid (pH 3) under subcritical conditions (275-300 °C) and at short reaction times (1-4 min) was investigated. A cascade process comprising a stepwise separation of the liquid was applied to reduce the formation of undesired degradation products.
RESULTS: The highest degree of biomass disintegration (67% dry mass solubilization) was achieved by application of a cascade process at 275 °C (pH 3). Regarding the dissolution of carbohydrates (monomeric and oligomeric form), the total glucose yields remained below 60%, while the total xylose and arabinose yields were about 76% and 67%. Approximately 74% of the protein and 95% of the mineral fraction could be extracted. The application of the cascade process enabled a substantially reduced formation of degradation products.
CONCLUSION: When operating hydrothermally and subcritically in order to avoid some problematic aspects of a biorefinery, an extensive disintegration and monomerization of wheat bran and its constituents remains difficult even under the tested conditions (300 °C, pH 3). However, the applied cascade process proved to be useful to increase the yields and to substantially reduce the formation of undesired degradation products. Despite this fact, increased water consumption has to be conceded. © 2018 Society of Chemical Industry.
Keywords
- Arabinose/analysis, Dietary Fiber/analysis, Glucose/analysis, Hot Temperature, Hydrogen-Ion Concentration, Hydrolysis, Sulfuric Acids/chemistry, Triticum/chemistry, Waste Products/analysis, biorefinery, biomass disintegration, subcritical water treatment, wheat bran, pretreatment, cascade process
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Food Science
- Nursing(all)
- Nutrition and Dietetics
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Biochemistry, Genetics and Molecular Biology(all)
- Biotechnology
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of the Science of Food and Agriculture, Vol. 98, No. 11, 12.07.2018, p. 4296-4303.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Disintegration of the agricultural by-product wheat bran under subcritical conditions
AU - Reisinger, Michael
AU - Tirpanalan, Özge
AU - Pruksasri, Suwattana
AU - Kneifel, Wolfgang
AU - Novalin, Senad
N1 - Funding information: We gratefully acknowledge the support by Good-Mills Group GmbH, Austria, and the Christian Doppler Forschungsgesellschaft, Austria.
PY - 2018/7/12
Y1 - 2018/7/12
N2 - BACKGROUND: The disintegration of destarched wheat bran in water and sulfuric acid (pH 3) under subcritical conditions (275-300 °C) and at short reaction times (1-4 min) was investigated. A cascade process comprising a stepwise separation of the liquid was applied to reduce the formation of undesired degradation products.RESULTS: The highest degree of biomass disintegration (67% dry mass solubilization) was achieved by application of a cascade process at 275 °C (pH 3). Regarding the dissolution of carbohydrates (monomeric and oligomeric form), the total glucose yields remained below 60%, while the total xylose and arabinose yields were about 76% and 67%. Approximately 74% of the protein and 95% of the mineral fraction could be extracted. The application of the cascade process enabled a substantially reduced formation of degradation products.CONCLUSION: When operating hydrothermally and subcritically in order to avoid some problematic aspects of a biorefinery, an extensive disintegration and monomerization of wheat bran and its constituents remains difficult even under the tested conditions (300 °C, pH 3). However, the applied cascade process proved to be useful to increase the yields and to substantially reduce the formation of undesired degradation products. Despite this fact, increased water consumption has to be conceded. © 2018 Society of Chemical Industry.
AB - BACKGROUND: The disintegration of destarched wheat bran in water and sulfuric acid (pH 3) under subcritical conditions (275-300 °C) and at short reaction times (1-4 min) was investigated. A cascade process comprising a stepwise separation of the liquid was applied to reduce the formation of undesired degradation products.RESULTS: The highest degree of biomass disintegration (67% dry mass solubilization) was achieved by application of a cascade process at 275 °C (pH 3). Regarding the dissolution of carbohydrates (monomeric and oligomeric form), the total glucose yields remained below 60%, while the total xylose and arabinose yields were about 76% and 67%. Approximately 74% of the protein and 95% of the mineral fraction could be extracted. The application of the cascade process enabled a substantially reduced formation of degradation products.CONCLUSION: When operating hydrothermally and subcritically in order to avoid some problematic aspects of a biorefinery, an extensive disintegration and monomerization of wheat bran and its constituents remains difficult even under the tested conditions (300 °C, pH 3). However, the applied cascade process proved to be useful to increase the yields and to substantially reduce the formation of undesired degradation products. Despite this fact, increased water consumption has to be conceded. © 2018 Society of Chemical Industry.
KW - Arabinose/analysis
KW - Dietary Fiber/analysis
KW - Glucose/analysis
KW - Hot Temperature
KW - Hydrogen-Ion Concentration
KW - Hydrolysis
KW - Sulfuric Acids/chemistry
KW - Triticum/chemistry
KW - Waste Products/analysis
KW - biorefinery
KW - biomass disintegration
KW - subcritical water treatment
KW - wheat bran
KW - pretreatment
KW - cascade process
UR - http://www.scopus.com/inward/record.url?scp=85045832104&partnerID=8YFLogxK
U2 - 10.1002/jsfa.8952
DO - 10.1002/jsfa.8952
M3 - Article
C2 - 29427290
VL - 98
SP - 4296
EP - 4303
JO - Journal of the Science of Food and Agriculture
JF - Journal of the Science of Food and Agriculture
SN - 0022-5142
IS - 11
ER -