Improving aerobic stability and biogas production of maize silage using silage additives

Bioresource Technology
Christiane HerrmannMonika Heiermann

Abstract

The effects of air stress during storage, exposure to air at feed-out, and treatment with silage additives to enhance aerobic stability on methane production from maize silage were investigated at laboratory scale. Up to 17% of the methane potential of maize without additive was lost during seven days exposure to air on feed-out. Air stress during storage reduced aerobic stability and further increased methane losses. A chemical additive containing salts of benzoate and propionate, and inoculants containing heterofermentative lactic acid bacteria were effective to increase aerobic stability and resulted in up to 29% higher methane yields after exposure to air. Exclusion of air to the best possible extent and high aerobic stabilities should be primary objectives when ensiling biogas feedstocks.

References

Jan 3, 2001·Applied and Environmental Microbiology·S J Oude ElferinkF Driehuis
Jan 7, 2003·Applied and Environmental Microbiology·H DannerR Braun
Mar 11, 2008·Bioresource Technology·Outi PakarinenJukka Rintala
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Oct 29, 2011·Biotechnology for Biofuels·Emma KreugerLovisa Björnsson
Jun 19, 2012·Bioresource Technology·Ruifang GaoZongjun Cui

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Citations

May 28, 2016·Animal Science Journal = Nihon Chikusan Gakkaihō·Miao ZhangQingsheng Jin
Feb 19, 2019·Animal Science Journal = Nihon Chikusan Gakkaihō·Ying-Chao ZhangFu-Yu Yang
Jun 28, 2018·Applied Microbiology and Biotechnology·Sathyanarayanan S Veeravalli, Alexander P Mathews
May 6, 2019·World Journal of Microbiology & Biotechnology·Agata U FabiszewskaB Wróbel
Nov 5, 2021·Animal Science Journal = Nihon Chikusan Gakkaihō·Qiming ChengChao Chen

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