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Conversion of carbohydrates in herbaceous crops during anaerobic digestion

Journal of Agricultural and Food Chemistry, ISSN: 0021-8561, Vol: 60, Issue: 32, Page: 7934-7940
2012
  • 8
    Citations
  • 0
    Usage
  • 30
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    8
    • Citation Indexes
      8
  • Captures
    30

Article Description

The methane yields and conversion of pentoses (xylose) and hexoses (cellulose) in hemp, maize, and white lupin were studied over 30 days of anaerobic digestion. Preservation of hemp increased the methane yield by 23% compared with the fresh hemp. The increased methane yield of hemp was verified by the enhanced conversion of C6 sugars, increasing from 48% to about 70%, whereas the conversion of C5 sugars increased from only 9% to nearly 50%. The consumption of all carbohydrates in fresh maize was almost complete in the 30 days of anaerobic digestion. Hence, there was no major difference in carbohydrate consumption between fresh and preserved maize during biogas production. Fresh white lupin produced the highest methane yield (343 ± 33 dm kg TS) in this work, mainly due to its highest amount of proteins. Conversion of C6 sugars was 80%, but that of C5 sugars was notably less at 46%. © 2012 American Chemical Society.

Bibliographic Details

Pakarinen, Annukka; Kymalainen, Maritta; Stoddard, Frederick L; Viikari, Liisa

American Chemical Society (ACS)

Chemistry; Agricultural and Biological Sciences

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