Pretreatment of Pennisetum sinese silages with ferulic acid esterase-producing lactic acid bacteria and cellulase at two dry matter contents: Fermentation characteristics, carbohydrates composition and enzymatic saccharification

Li, Fuhou; Ke, Wencan; Ding, Zitong; Bai, Jie; Zhang, Yixin; Xu, Dongmei; Li, Ziqian; Guo, Xusheng

doi:10.1016/j.biortech.2019.122261

Cited by 53 publications

(71 citation statements)

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“…The results presented in this study show that all silages had pH of higher than 4.2, suggesting a lower quality of fermentation. Previous studies have reported a range of silage pH’s with some corroborating what was found in this study and other papers showing P. sinese silage with a lower pH ( Li et al, 2014 , 2019a , 2020 ; Desta et al, 2016 ; Mugabe et al, 2019 ). The pH variability may be due to different P. sinese varieties being used in this study compared to others, or differences in the silage microbiome.…”

Section: Discussionsupporting

confidence: 92%

“…In this study, the chemical composition of P. sinese varieties are similar to a previous study in which king grass was examined ( Li et al, 2019b ). In contrast, both Mugabe et al (2019) and Li et al (2020) reported higher CP, NDF, and ADF content in P. sinese varieties compared to the results described. Furthermore, Desta et al (2016) reported a higher DM, NDF, and ADF content, but lower WSC content, in Napier grass.…”

Section: Discussioncontrasting

confidence: 77%

“…It is adaptable and has a high biomass production rate; this has led to its widespread use in tropical/subtropical regions across the world ( Zhao et al, 2019 ). P. sinese is primarily used for the production of feedstock for biofuels and animal feed; this is due to its high lignocellulosic biomass and excellent palatability ( Li et al, 2014 , 2019a , 2019b , 2020 ; Lu et al, 2014 ; Wang et al, 2016 ; Shah et al, 2018 ). The demand for P. sinese is large, but production is affected by seasonal harvest.…”

Section: Introductionmentioning

confidence: 99%

“…Ensiling can guarantee the quality of the feed for long term storage and has also been shown to be a promising pretreatment method in biofuel production ( Wilkinson et al, 2003 ). Previous studies have focused primarily on the effect of additives to P. sinese silages, but little is currently understood regarding the effect of additives on the microbiome of the resultant silage ( Li et al, 2014 , 2018a , 2018b , 2019a , 2020 ; Li L. et al, 2017 ; Wu et al, 2020 ). Currently, only a limited number of studies have examined the effects of additives on the fermentation quality and microbial diversity of P. sinese silage ( Dong et al, 2020 ; Shah et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Natural Fermentation Quality and Bacterial Community of 12 Pennisetum sinese Varieties in Southern China

Dun

et al. 2021

Front. Microbiol.

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This study investigated the fermentation quality of 12 varieties of Pennisetum sinese grown in different regions of Southern China. Following the production of silage from the natural fermentation of P. sinese, the interplay between the chemical composition, fermentation characteristics, environmental factors, and microbiome was examined to understand the influence of these factors on the fermentation quality of silage. The silage quality produced by most of the P. sinese was low; the pH value of the silage was high (4.26–4.86), whilst the lactic acid content was low (10.7–24.1 g/kg DM), with V-scores between 57.9 and 78.3. The bacterial alpha diversities of the 12 P. sinese silages were distinct. There was a predominance of undesirable bacteria (Pseudomonas, Massilia, and Raoultella), which likely caused the poor fermentation quality. The chemical composition and fermentation characteristics of the silage were closely correlated with the composition of the bacterial community. Furthermore, environmental factors (precipitation, temperature, humidity, location) were found to significantly influence the microbiome of the silage. The results confirmed that silage produced from the natural fermentation of 12 different P. sinese varieties had significant variation in their bacterial communities. The difference in environmental factors, due to the P. sinese being grown in various locations across south china, greatly affected the bacterial community found in the silage and thus the fermentation quality. The specific cultivar used for the silage and the environment in which the cultivar is grown must therefore be considered before the initiation of production of silage in order to ensure a higher quality product.

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Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Natural Fermentation Quality and Bacterial Community of 12 Pennisetum sinese Varieties in Southern China

Dun

et al. 2021

Front. Microbiol.

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“…Low acetic acid content (below 4.2 g/kg d.m.) was obtained in [16][17][18] as well as Gao et al [19] in silages with high dry matter content (499-724 g/kg d.m. ).…”

Section: Discussionmentioning

confidence: 57%

Quality of Silages Made From Meadow Sward From South-Eastern Poland

Radkowski

Radkowska

Bocianowski

2020

Ecological Chemistry and Engineering S

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Weather conditions prevailing in Poland often cause that meadow sward designated for silage is harvested too late, which decreases the quality of prepared silage. The aim of the research was to assess the quality of silages from dried meadow sward. The silages were ensiled in large cylindrical bales in selected individual farms specializing in milk production. The farms where the research was carried out were located in three voivodeships: slaskie, malopolskie and podkarpackie. In the prepared plant material, the basic chemical composition was determined using the method. When comparing the mean values, it was established that silages from the investigated region had a favourable content of total protein, the highest concentration was recorded for silages from Slask, followed by Malopolska and Podkarpacie. A slightly elevated concentration of crude fibre, fraction of acid detergent fibre (ADF) and neutral detergent fibre (NDF), was recorded. This fact shows that farmers collect raw material, particularly from the first cut, too late. Nutrient value of silages from meadow sward decreases with progressing vegetation. Higher protein and energy losses during sward ensiling were also observed at considerable drying of the plant material. In most cases, silages from the studied farms had a low content of monosaccharides. The carried out chemical analyses showed that in overall assessment the studied silages are of good quality; silages prepared from meadow sward from the third cut had the highest value. Proper technology of preservation of meadow sward is one of important factors in the production of feed for ruminants.

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Synergistic effects of ferulic acid esterase‐producing lactic acid bacteria, cellulase and xylanase on the fermentation characteristics, fibre and nitrogen components and microbial community structure of Broussonetia papyrifera during ensiling

Yu,

Xu,

et al. 2024

J Sci Food Agric

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BackgroundThe high fibre content of whole plants of Broussonetia papyrifera limits its efficient utilization. Ferulic acid esterase (FAE), in combination with xylanase, can effectively cleave the lignin‐carbohydrate complex, promoting the function of cellulase. However, little is known about the impact of these additives on silage. To effectively utilize natural woody plant resources, FAE‐producing Lactobacillus plantarum RO395, xylanase (XY) and cellulase (CE) were used to investigate the dynamic fermentation characteristics, fibre and nitrogen components and microbial community structure during B. papyrifera ensiling.ResultsB. papyrifera was either not treated (CK) or treated with FAE‐producing lactic acid bacteria (LP), CE, XY, LP+CE, LP+XY or LP+CE+XY for 3, 7, 15, 30 or 60 days, respectively. In comparison with those in the CK treatment, the L. plantarum and enzyme treatments (LP+CE, LP+XY and LP+XY+CE), especially the LP+XY+CE treatment, significantly increased the lactic acid concentration and decreased the pH and the contents of acid detergent insoluble protein and NH3‐N (P < 0.05). Enzyme addition improved the degradation efficiency of lignocellulose, and a synergistic effect was observed after enzyme treatment in combination with LP; in addition, the lowest acid detergent fibre, neutral detergent fibre, hemicellulose, and cellulose contents were detected after the LP+CE+XY treatment (P < 0.05). Moreover, CE, XY and LP additions significantly improved the microbial community structure, increased the relative abundance of Lactiplantibacillus and Firmicutes, and effectively inhibited undesirable bacterial (Enterobacter) growth during ensiling.ConclusionFAE‐producing L. plantarum and the two tested enzymes exhibited synergistic effects on improving the quality of silage, which indicates that this combination can serve as an efficient method for improved B. papyrifera silage utilization.This article is protected by copyright. All rights reserved.

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Pretreatment of Pennisetum sinese silages with ferulic acid esterase-producing lactic acid bacteria and cellulase at two dry matter contents: Fermentation characteristics, carbohydrates composition and enzymatic saccharification

Cited by 53 publications

References 46 publications

Natural Fermentation Quality and Bacterial Community of 12 Pennisetum sinese Varieties in Southern China

Natural Fermentation Quality and Bacterial Community of 12 Pennisetum sinese Varieties in Southern China

Quality of Silages Made From Meadow Sward From South-Eastern Poland

Synergistic effects of ferulic acid esterase‐producing lactic acid bacteria, cellulase and xylanase on the fermentation characteristics, fibre and nitrogen components and microbial community structure of Broussonetia papyrifera during ensiling

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