Changes in the isoflavone concentration in red clover (Trifolium pratense L.) during ensiling and storage in laboratory-scale silos

Daems, Frédéric; Decruyenaere, Virginie; Agneessens, Richard; Lognay, Georges; Romnee, Jean-Michel; Froidmont, Éric

doi:10.1016/j.anifeedsci.2016.04.008

Cited by 12 publications

(15 citation statements)

References 32 publications

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“…This is in agreement with the isoflavones proportion in fresh red clover reported in many studies (e.g. Daems, Decruyenaere, et al, 2016;Tsao, Papadopoulos, Yang, Young, & McRae, 2006). F I G U R E 2 Estimated concentrations of individual compounds for different diets (concentrate-rich and hay diets, dashed line with triangles and solid line with diamonds respectively), levels of added clover extract, and incubation times.…”

Section: Discussionsupporting

confidence: 88%

“…Isoflavones are plant secondary metabolites that take part in plant defence mechanisms, have functions in attraction of pollinators (Daems, Decruyenaere, et al., 2016) or establish the symbiotic relationship between the plant and rhizobial bacteria to form root nodules (Yu et al., 2000). Moreover, they also have numerous human health benefits (Adler et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

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In vitro metabolism of red clover isoflavones in rumen fluid

Dadáková

Trnková

Kašparovská

et al. 2020

Animal Physiology Nutrition

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Isoflavones are plant secondary metabolites that take part in plant defence mechanisms, have functions in attraction of pollinators (Daems, Decruyenaere, et al., 2016) or establish the symbiotic relationship between the plant and rhizobial bacteria to form root nodules (Yu et al., 2000). Moreover, they also have numerous human health benefits (Adler et al., 2014). Because of their similarity to 17β-estradiol, these polyphenolic compounds are a part of a group called phyto-oestrogens (Daems, Romnee, et al., 2016).

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

In vitro metabolism of red clover isoflavones in rumen fluid

Dadáková

Trnková

Kašparovská

et al. 2020

Animal Physiology Nutrition

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“…(). Only pH values (4.6 in average) are elevated overall for high moisture silages, but they are consistent with data from other studies in these types of experiment (Cherney, Alessi, & Cherney, ; Daems et al., ; Hoedtke & Zeyner, ).…”

Section: Discussionmentioning

confidence: 99%

“…This could be explained by the good level of silage preservation overall, achieved using the laboratory-scale system of silage proposed by Daems et al (2016). Only pH values (4.6 in average) are elevated overall for high F I G U R E 1 Ammonia proportion in silages according to mixture and additive treatments (NA: no additive; A: acid; CT: chestnut tannin; OT: oak tannin; Z: zeolite; M0: pure ryegrass; M25: 25% red clover and 75% ryegrass; M50: 50% red clover and 50% ryegrass; M75: 75% red clover and 25% ryegrass; M100: pure red clover) moisture silages, but they are consistent with data from other studies in these types of experiment (Cherney, Alessi, & Cherney, 2006;Daems et al, 2016;Hoedtke & Zeyner, 2011).…”

Section: Discussionmentioning

confidence: 99%

Silage additives to reduce protein degradation during ensiling and evaluation of in vitro ruminal nitrogen degradability

Herremans

Decruyenaere

Beckers

et al. 2018

Grass and Forage Science

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Despite the high degradability of their proteins, grass and legume silages represent an important option to reach more sustainable livestock systems. To improve the nitrogen use efficiency of these crops, this study assessed the potential of several additives (chestnut tannins, oak tannins, zeolite, erythritol by‐product solution and wood molasses) to reduce proteolysis in the silo and in vitro nitrogen degradability. Ryegrass (Lolium multiflorum) and red clover (Trifolium pratense) were ensiled in varying proportions in laboratory‐scale silos made of vacuum‐packed plastic bags. Dry‐matter content, chemical composition, pH, ammonia and volatile fatty acids content were analysed after 34 days of ensiling. Ruminal nitrogen degradability was assessed in vitro (Aufrère & Cartailler, ). We observed that the proportion of ammonia in silage was reduced by the addition of oak tannin (−12%) and zeolite (−16%). The addition of zeolite lowered in vitro organic matter digestibility. Rapidly degradable nitrogen (1‐hr degradability) was reduced in vitro by both tannins (−6.8% for chestnut and −6.6% for oak) and zeolite (−5.8%), but total degradable nitrogen (24‐hr degradability) was only reduced by oak (−6.5%) and chestnut tannins (−7.3%). It suggests that tannins protected proteins from plant and bacterial enzymes by forming a complex that better resists silage fermentations and in vitro protease action. The reduction effects on proteolysis in the silo and on in vitro ruminal nitrogen degradability are limited individually but could be cumulative. Erythritol by‐product solution and wood molasses had no effect on silo or in vitro proteolysis.

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“…The standardization and development of silage quality grading may help to accurately assess the quality, which is one of the key measures to improve the quality of forage. Generally speaking, quality evaluation of silage includes sensory evaluation and chemical analysis [25]. Sensory evaluation is simple and feasible, but subjective; laboratory evaluation of chemical analysis involves many indicators, which can be quantitatively compared objectivity.…”

Section: Quality Evaluation Of the Silagementioning

confidence: 99%

Solid-State Anaerobic Microbial Ensilage Pretreatment

Xu¹

2021

Biogas - Recent Advances and Integrated Approaches

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Pretreatment technology has become the main bottleneck restricting the development of biogas. This chapter provides an overview of recent studies on solid-state microbial ensilage pretreatment for the production of biogas with wastes. The goal of microbial ensilage pretreatment is to maximize the production of lactic acid, thereby reducing the pH value and establishing an environment that is not suitable for the growth of harmful organisms. The use of various additives, especially lactic acid bacteria, is the main factor to ensure the success of anaerobic pretreatment. Sensory evaluation is carried out by observing the smell, structure, and color of silage to judge the quality of silage. The pH values, ammonia nitrogen, and organic acids (lactic-, acetic-, propionic-, and butyric acid) are used as reference values to determine the fermentation quality of silage. An overall comparison of the effectiveness of microbial ensilage with aerobic microbial pretreatment for biogas production is also discussed. Finally, the research on solid-state anaerobic microbial silage pretreatment in biogas conversion is summarized. The combined anaerobic digestion method with different pretreated materials will be the future development direction due to its advantages.

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Changes in the isoflavone concentration in red clover (Trifolium pratense L.) during ensiling and storage in laboratory-scale silos

Cited by 12 publications

References 32 publications

In vitro metabolism of red clover isoflavones in rumen fluid

In vitro metabolism of red clover isoflavones in rumen fluid

Silage additives to reduce protein degradation during ensiling and evaluation of in vitro ruminal nitrogen degradability

Solid-State Anaerobic Microbial Ensilage Pretreatment

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