Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation

Abstract The objective of this study was to evaluate the synergistic and differential effects of inoculation with lignocellulolytic enzymes and ferulic acid esterase (FAE)-producing Lactobacillus plantarum on the fermentation characteristics, bacterial community and in vitro degradability of Sudan g...

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Main Authors: Qiang Yu, Ya Su, Yulong Xi, Yuanjiang Rong, Yixi Long, Yixiao Xie, Hong Sun, Rui Dong, Jun Hao, Fuyu Yang, Yulong Zheng
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Chemical and Biological Technologies in Agriculture
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Online Access:https://doi.org/10.1186/s40538-025-00760-8
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author Qiang Yu
Ya Su
Yulong Xi
Yuanjiang Rong
Yixi Long
Yixiao Xie
Hong Sun
Rui Dong
Jun Hao
Fuyu Yang
Yulong Zheng
author_facet Qiang Yu
Ya Su
Yulong Xi
Yuanjiang Rong
Yixi Long
Yixiao Xie
Hong Sun
Rui Dong
Jun Hao
Fuyu Yang
Yulong Zheng
author_sort Qiang Yu
collection DOAJ
description Abstract The objective of this study was to evaluate the synergistic and differential effects of inoculation with lignocellulolytic enzymes and ferulic acid esterase (FAE)-producing Lactobacillus plantarum on the fermentation characteristics, bacterial community and in vitro degradability of Sudan grass and mulberry and their mixed silage. Sudan grass and mulberry were mixed at mass ratios of 10:0 (S), 7:3 (S–7), 5:5 (S–5), 3:7 (S–3) and 0:10 (M). With the following treatments were applied: no treatment (CK); L. plantarum alone (LP); L. plantarum, cellulase and xylanase combined (LCX); or L. plantarum, xylanase and laccase combined (LXL). Compared with the control, all the additives (especially the bacterium–enzyme combinations) increased the lactic acid (LA) concentration, water-soluble carbohydrate (WSC) content and relative abundance of Lactobacillus; decreased the pH, ammonia–nitrogen (AN) concentration, coliform count and relative abundance of undesirable bacteria such as Enterobacter; and facilitated lignocellulosic degradation. LCX was more effective in degrading neutral detergent fiber (aNDF) and acid detergent fiber (ADF), decreased the pH, increased the WSC content and simplified the structure of the bacterial network, whereas LXL was better in degrading lignin and enhanced in vitro fermentation efficiency. In addition, LXL improved the silage quality by increasing the acetic acid (AA) concentration and relative abundance of Lactobacillus buchneri. Compared with ensiling alone, mixed ensiling balanced the nutrient composition, reduced the butyric acid (BA) concentration and relative abundance of Enterobacter, increased the relative abundance of Lactobacillus, increased the bacterial network positive correlation ratio and promoted in vitro dry matter (DM) digestibility. Overall, mixed ensiling and bacterium–enzyme inoculation improved fermentation quality. Graphical Abstract
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issn 2196-5641
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spelling doaj-art-75c488aa2eb54fe0b3a41f6080540a5e2025-08-20T02:49:31ZengSpringerOpenChemical and Biological Technologies in Agriculture2196-56412025-03-0112111810.1186/s40538-025-00760-8Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculationQiang Yu0Ya Su1Yulong Xi2Yuanjiang Rong3Yixi Long4Yixiao Xie5Hong Sun6Rui Dong7Jun Hao8Fuyu Yang9Yulong Zheng10College of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityCollege of Animal Science, Guizhou UniversityAbstract The objective of this study was to evaluate the synergistic and differential effects of inoculation with lignocellulolytic enzymes and ferulic acid esterase (FAE)-producing Lactobacillus plantarum on the fermentation characteristics, bacterial community and in vitro degradability of Sudan grass and mulberry and their mixed silage. Sudan grass and mulberry were mixed at mass ratios of 10:0 (S), 7:3 (S–7), 5:5 (S–5), 3:7 (S–3) and 0:10 (M). With the following treatments were applied: no treatment (CK); L. plantarum alone (LP); L. plantarum, cellulase and xylanase combined (LCX); or L. plantarum, xylanase and laccase combined (LXL). Compared with the control, all the additives (especially the bacterium–enzyme combinations) increased the lactic acid (LA) concentration, water-soluble carbohydrate (WSC) content and relative abundance of Lactobacillus; decreased the pH, ammonia–nitrogen (AN) concentration, coliform count and relative abundance of undesirable bacteria such as Enterobacter; and facilitated lignocellulosic degradation. LCX was more effective in degrading neutral detergent fiber (aNDF) and acid detergent fiber (ADF), decreased the pH, increased the WSC content and simplified the structure of the bacterial network, whereas LXL was better in degrading lignin and enhanced in vitro fermentation efficiency. In addition, LXL improved the silage quality by increasing the acetic acid (AA) concentration and relative abundance of Lactobacillus buchneri. Compared with ensiling alone, mixed ensiling balanced the nutrient composition, reduced the butyric acid (BA) concentration and relative abundance of Enterobacter, increased the relative abundance of Lactobacillus, increased the bacterial network positive correlation ratio and promoted in vitro dry matter (DM) digestibility. Overall, mixed ensiling and bacterium–enzyme inoculation improved fermentation quality. Graphical Abstracthttps://doi.org/10.1186/s40538-025-00760-8Mixed ensilingLactic acid bacteriumLignocellulolytic enzymesBacterial communityIn vitro degradability
spellingShingle Qiang Yu
Ya Su
Yulong Xi
Yuanjiang Rong
Yixi Long
Yixiao Xie
Hong Sun
Rui Dong
Jun Hao
Fuyu Yang
Yulong Zheng
Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
Chemical and Biological Technologies in Agriculture
Mixed ensiling
Lactic acid bacterium
Lignocellulolytic enzymes
Bacterial community
In vitro degradability
title Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
title_full Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
title_fullStr Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
title_full_unstemmed Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
title_short Comparison of the impacts of cellulase and laccase on fermentation quality, bacterial composition and in vitro degradability of anaerobic cofermentation derived from Sudan grass with mulberry under Lactobacillus plantarum and different lignocellulolytic enzyme inoculation
title_sort comparison of the impacts of cellulase and laccase on fermentation quality bacterial composition and in vitro degradability of anaerobic cofermentation derived from sudan grass with mulberry under lactobacillus plantarum and different lignocellulolytic enzyme inoculation
topic Mixed ensiling
Lactic acid bacterium
Lignocellulolytic enzymes
Bacterial community
In vitro degradability
url https://doi.org/10.1186/s40538-025-00760-8
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