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Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice

Rincon, Bárbara, Banks, Charles J. and Heaven, Sonia (2010) Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice Bioresource Technology, 101, (21), pp. 8179-8184. (doi:10.1016/j.biortech.2010.06.039). (PMID:20598879).

Record type: Article


The effect of growth stage at harvest and of storage practice on the biochemical methane potential (BMP) of winter wheat was investigated using batch-fed stirred mesophilic digesters. The wheat used was a single variety sown at the same time (autumn) and harvested at 3 different stages in its growth: medium milk (A), soft dough (B) and Caryopsis (C). Wheats (A and B) were ensiled whilst the later harvested material (C) with a higher dry matter content was treated by the alkalage process. The BMP values expressed on the basis of volatile solids (VS) were 0.360 ± 0.030, 0.346 ± 0.006 and 0.311 ± 0.016 l CH4 g?1 VSadded for A, B and C, respectively. A simple first order kinetic model gave only a poor fit to the experimental data but a close match was obtained using a modified first order pseudo-parallel model which explains the methane production curve on the basis of differences in biodegradability of the plant material.

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Published date: November 2010
Keywords: biochemical methane potential, energy crops, growth stage, storage practice, kinetic model


Local EPrints ID: 184695
ISSN: 0960-8524
PURE UUID: 2c7812e8-825c-4157-a149-b40a24758c05

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Date deposited: 06 May 2011 15:28
Last modified: 18 Jul 2017 11:51

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