Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage

The aim of this work was to improve the understanding of dry matter losses (DML) that occur in wood chips during the initial phase of storage in outdoor piles. For this purpose, a laboratory scale storage chamber was developed and investigated regarding its ability to recreate the conditions that ch...

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Published in:Forests
Main Authors: Albert Hernandez-Estrada, Ralf Pecenka, Sabrina Dumfort, Judith Ascher-Jenull, Hannes Lenz, Christine Idler, Thomas Hoffmann
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2022
Subjects:
DML
Online Access:https://doi.org/10.3390/f13030459
https://doaj.org/article/3d8068cf2a6947339e07038d0478873a
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spelling ftdoajarticles:oai:doaj.org/article:3d8068cf2a6947339e07038d0478873a 2023-05-15T16:01:29+02:00 Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage Albert Hernandez-Estrada Ralf Pecenka Sabrina Dumfort Judith Ascher-Jenull Hannes Lenz Christine Idler Thomas Hoffmann 2022-03-01T00:00:00Z https://doi.org/10.3390/f13030459 https://doaj.org/article/3d8068cf2a6947339e07038d0478873a EN eng MDPI AG https://www.mdpi.com/1999-4907/13/3/459 https://doaj.org/toc/1999-4907 doi:10.3390/f13030459 1999-4907 https://doaj.org/article/3d8068cf2a6947339e07038d0478873a Forests, Vol 13, Iss 459, p 459 (2022) dry matter losses short rotation coppices poplar wood chips laboratory scale cultivable saproxylic microbiota Plant ecology QK900-989 article 2022 ftdoajarticles https://doi.org/10.3390/f13030459 2022-12-31T04:10:41Z The aim of this work was to improve the understanding of dry matter losses (DML) that occur in wood chips during the initial phase of storage in outdoor piles. For this purpose, a laboratory scale storage chamber was developed and investigated regarding its ability to recreate the conditions that chips undergo during the initial phase of outdoor storage. Three trials with poplar Max-4 ( Populus maximowiczii Henry × Populus nigra L.) chips were performed for 6–10 weeks in the storage chamber under controlled temperature and assisted humidity. Two different set-ups were investigated to maintain a high relative humidity (RH) inside the storage chamber; one using water containers, and one assisted with a humidifier. Moisture content (MC) and DML of the chips were measured at different storage times to evaluate their storage behaviour in the chamber. Additionally, microbiological analyses of the culturable fraction of saproxylic microbiota were performed, with a focus on mesophilic fungi, but discriminating also xerophilic fungi, and mesophilic bacteria, with focus on actinobacteria, in two trials, to gain a view on the poplar wood chip-inhabiting microorganisms as a function of storage conditions (moisture, temperature) and time. Results show that DML up to 8.8–13.7% occurred in the chips within 6–10 storage weeks. The maximum DML were reached in the trial using the humidifier, which seemed a suitable technique to keep a high RH in the testing chamber, and thus, to analyse the wood chips in conditions comparable to those in outdoor piles during the initial storage phase. Article in Journal/Newspaper DML Directory of Open Access Journals: DOAJ Articles Forests 13 3 459
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic dry matter losses
short rotation coppices
poplar wood chips
laboratory scale
cultivable saproxylic microbiota
Plant ecology
QK900-989
spellingShingle dry matter losses
short rotation coppices
poplar wood chips
laboratory scale
cultivable saproxylic microbiota
Plant ecology
QK900-989
Albert Hernandez-Estrada
Ralf Pecenka
Sabrina Dumfort
Judith Ascher-Jenull
Hannes Lenz
Christine Idler
Thomas Hoffmann
Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
topic_facet dry matter losses
short rotation coppices
poplar wood chips
laboratory scale
cultivable saproxylic microbiota
Plant ecology
QK900-989
description The aim of this work was to improve the understanding of dry matter losses (DML) that occur in wood chips during the initial phase of storage in outdoor piles. For this purpose, a laboratory scale storage chamber was developed and investigated regarding its ability to recreate the conditions that chips undergo during the initial phase of outdoor storage. Three trials with poplar Max-4 ( Populus maximowiczii Henry × Populus nigra L.) chips were performed for 6–10 weeks in the storage chamber under controlled temperature and assisted humidity. Two different set-ups were investigated to maintain a high relative humidity (RH) inside the storage chamber; one using water containers, and one assisted with a humidifier. Moisture content (MC) and DML of the chips were measured at different storage times to evaluate their storage behaviour in the chamber. Additionally, microbiological analyses of the culturable fraction of saproxylic microbiota were performed, with a focus on mesophilic fungi, but discriminating also xerophilic fungi, and mesophilic bacteria, with focus on actinobacteria, in two trials, to gain a view on the poplar wood chip-inhabiting microorganisms as a function of storage conditions (moisture, temperature) and time. Results show that DML up to 8.8–13.7% occurred in the chips within 6–10 storage weeks. The maximum DML were reached in the trial using the humidifier, which seemed a suitable technique to keep a high RH in the testing chamber, and thus, to analyse the wood chips in conditions comparable to those in outdoor piles during the initial storage phase.
format Article in Journal/Newspaper
author Albert Hernandez-Estrada
Ralf Pecenka
Sabrina Dumfort
Judith Ascher-Jenull
Hannes Lenz
Christine Idler
Thomas Hoffmann
author_facet Albert Hernandez-Estrada
Ralf Pecenka
Sabrina Dumfort
Judith Ascher-Jenull
Hannes Lenz
Christine Idler
Thomas Hoffmann
author_sort Albert Hernandez-Estrada
title Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
title_short Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
title_full Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
title_fullStr Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
title_full_unstemmed Establishment of a Laboratory Scale Set-Up with Controlled Temperature and High Humidity to Investigate Dry Matter Losses of Wood Chips from Poplar during Storage
title_sort establishment of a laboratory scale set-up with controlled temperature and high humidity to investigate dry matter losses of wood chips from poplar during storage
publisher MDPI AG
publishDate 2022
url https://doi.org/10.3390/f13030459
https://doaj.org/article/3d8068cf2a6947339e07038d0478873a
genre DML
genre_facet DML
op_source Forests, Vol 13, Iss 459, p 459 (2022)
op_relation https://www.mdpi.com/1999-4907/13/3/459
https://doaj.org/toc/1999-4907
doi:10.3390/f13030459
1999-4907
https://doaj.org/article/3d8068cf2a6947339e07038d0478873a
op_doi https://doi.org/10.3390/f13030459
container_title Forests
container_volume 13
container_issue 3
container_start_page 459
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