Synergistic effects of fibrolytic enzymes and lactic acid bacteria on cassava leaf silage quality and microbial community.
9 affiliations
- 1CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, People's Republic Of China.
- 2University of Chinese Academy of Sciences, Beijing, 100049, People's Republic Of China.
- 3Department of Animal Science and Nutrition, Gazipur Agricultural University, Gazipur, 1706, Bangladesh.
- 4CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, People's Republic Of China. [email protected].
- 5Animal Science and Fishery, Rajamangala University of Technology Lanna, Lampang, 52000, Thailand.
- 6Department of Livestock and Fisheries, Faculty of Agriculture, National University of Laos, 856, Vientiane Capital, Laos.
- 7School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
- 8CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutrition & Physiology and Metabolism, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, People's Republic Of China. [email protected].
- 9University of Chinese Academy of Sciences, Beijing, 100049, People's Republic Of China. [email protected].
Abstract
Cassava leaves are a valuable protein-rich feed resource, but their high fiber content and poor fermentation characteristics can reduce silage quality. To address these challenges, this study evaluated the synergistic effects of fiber-degrading enzymes and lactic acid bacteria (LAB) on the fermentation profiles, nutritional quality, and microbial community of cassava leaf silage. Silage was prepared using five treatments: CK (2% glucose), T1 (Lactobacillus plantarum + 2% glucose), T2 (glucanase + L. plantarum + 2% glucose), T3 (cellulase + L. plantarum + 2% glucose), and T4 (glucanase + cellulase + L. plantarum + 2% glucose), and ensiled for 0, 21, and 42 days. The findings demonstrated that additive treatments (T1-T4) rapidly decreased silage pH and increased lactic acid compared to the CK (P < 0.001). By day 42, the enzyme-inoculated groups (T2-T4) exhibited elevated crude protein alongside reduced fiber fractions compared to both CK and T1 (P < 0.001). Regarding the microbial community, Shannon and Simpson indices were lower in treated groups than in the CK group (P < 0.05). Beta diversity analysis revealed that the microbial community structure of the CK differed clearly from that of the additive-treated silages. At the phylum level, Bacillota dominated all other groups on day 42, with a relative abundance exceeding 92%. At the species level, Lactobacillus plantarum dominated enzyme-treated silages (relative abundance > 93%, P = 0.036), compared to only 13.1% in CK, which contained higher proportions of Pediococcus and Weissella species. Collectively, the synergistic application of fibrolytic enzymes and LAB improves cassava leaf silage quality by accelerating acidification, reducing fiber fractions, and establishing a highly favorable L. plantarum-dominated microbial community.
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BibTeX
@article{hossain2026synergistic,
title = {{Synergistic effects of fibrolytic enzymes and lactic acid bacteria on cassava leaf silage quality and microbial community.}},
author = {Md Delowar Hossain and Qiongxian Yan and Suntorn Wittayakun and Viengsakoun Napasirth and Pramote Paengkoum and Zhiliang Tan},
journal = {Bioresources and bioprocessing},
year = {2026},
month = oct,
doi = {10.1186/s40643-026-01151-z},
url = {https://europepmc.org/article/MED/42925357},
note = {CC BY},
}
RIS
TY - JOUR
TI - Synergistic effects of fibrolytic enzymes and lactic acid bacteria on cassava leaf silage quality and microbial community.
AU - Md Delowar Hossain
AU - Qiongxian Yan
AU - Suntorn Wittayakun
AU - Viengsakoun Napasirth
AU - Pramote Paengkoum
AU - Zhiliang Tan
PY - 2026
DA - 2026/10/24
JO - Bioresources and bioprocessing
DO - 10.1186/s40643-026-01151-z
UR - https://europepmc.org/article/MED/42925357
AB - Cassava leaves are a valuable protein-rich feed resource, but their high fiber content and poor fermentation characteristics can reduce silage quality. To address these challenges, this study evaluated the synergistic effects of fiber-degrading enzymes and lactic acid bacteria (LAB) on the fermentation profiles, nutritional quality, and microbial community of cassava leaf silage. Silage was prepared using five treatments: CK (2% glucose), T1 (Lactobacillus plantarum + 2% glucose), T2 (glucanase + L. plantarum + 2% glucose), T3 (cellulase + L. plantarum + 2% glucose), and T4 (glucanase + cellulase + L. plantarum + 2% glucose), and ensiled for 0, 21, and 42 days. The findings demonstrated that additive treatments (T1-T4) rapidly decreased silage pH and increased lactic acid compared to the CK (P < 0.001). By day 42, the enzyme-inoculated groups (T2-T4) exhibited elevated crude protein alongside reduced fiber fractions compared to both CK and T1 (P < 0.001). Regarding the microbial community, Shannon and Simpson indices were lower in treated groups than in the CK group (P < 0.05). Beta diversity analysis revealed that the microbial community structure of the CK differed clearly from that of the additive-treated silages. At the phylum level, Bacillota dominated all other groups on day 42, with a relative abundance exceeding 92%. At the species level, Lactobacillus plantarum dominated enzyme-treated silages (relative abundance > 93%, P = 0.036), compared to only 13.1% in CK, which contained higher proportions of Pediococcus and Weissella species. Collectively, the synergistic application of fibrolytic enzymes and LAB improves cassava leaf silage quality by accelerating acidification, reducing fiber fractions, and establishing a highly favorable L. plantarum-dominated microbial community.
SN - 2197-4365
ER -