The influence of tannin, pectin and polyethylene glycol on attachment of 15N-labelled rumen microorganisms to cellulose

Bento, M. H. L.; Acamovic, T.; Makkar, H.P.S.

doi:10.1016/j.anifeedsci.2005.04.010

Cited by 39 publications

(35 citation statements)

References 45 publications

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“…Tannins are able to inhibit the growth of ruminal micro-organisms (Murdiati et al, 1992), including cellulolytic micro-organisms, which are involved in the BH processes and in the saturation of VA to SA (Vasta et al, 2010). Tannin-bacteria interactions seem very strong and tannins, probably, are associated with the bacterial cell surface formation, which might limit the adhesion of extracellular enzymes to feed particle surfaces (Bento et al, 2005). On the basis of the data obtained in the present study, VA accumulation in the SAB from tannin-supplemented diets could be explained by a specific interaction between tannins and the bacteria involved in the last step of the BH process.…”

Section: Discussionmentioning

confidence: 99%

Effect of chestnut and quebracho tannins on fatty acid profile in rumen liquid- and solid-associated bacteria: an in vitro study

Buccioni

Minieri

Rapaccini

et al. 2011

Animal

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Tannins are phenolic compounds that interfere with biohydrogenation (BH) of polyunsaturated fatty acids (FAs). The aim of the present in vitro study was to investigate the effects of two different sources of tannins on FA profiles of rumen bacteria, with particular reference to rumenic and vaccenic acid. A control diet (C; composed of 300 g/kg of wheat straw, 132 g/kg of soyabean meal, 96 g/kg of barley meal, 152 g/kg of maize meal, 300 g/kg of maize gluten and 20 g/kg of mineral vitamin premix, all expressed on dry matter (DM)) and four diets, obtained by adding to C two different types of tannins from chestnut (TC) and from quebracho (TQ) at two concentration levels (49 and 82 g/kg DM), were compared. The content of the main unsaturated FAs (C18:1 cis9, C18:1 trans11, C18:2 cis9, cis12 and C18:3 cis9, cis12, cis15) from solid-associated bacteria (SAB) and liquidassociated bacteria (LAB) was affected by the presence of tannins in the diets. In particular, C18:1 trans11 content was significantly increased, especially with TC1, whereas the decreasing of C18:1 cis9 was unaffected, regardless of the presence or the kind of tannins added to feeds. SAB contained higher amounts of intermediates of polyunsaturated FA BH (as C18:1 trans11 and C18:2 cis9, trans11) than LAB that were characterized by a higher amount of C18:0. In the concentration range adopted in this study, the effect of TC and TQ on changes of bacterial FA profile was comparable. Tannins seem to be a good means to modulate the FA profile of rumen bacteria, favouring the accumulation of C18:1 trans11 during in vitro rumen fermentation.

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Section: Discussionmentioning

confidence: 99%

Effect of chestnut and quebracho tannins on fatty acid profile in rumen liquid- and solid-associated bacteria: an in vitro study

Buccioni

Minieri

Rapaccini

et al. 2011

Animal

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“…Proanthocyanidins, although hydrophilic and water soluble, are not absorbed from the GIT and with other tannins they can alter microflora populations, reduce attachment of fungi and bacteria to substrates, increase endogenous losses and damage the GIT in animals (Mansoori & Acamovic, 1998a,b;McSweeney et al 2001;Bento et al 2005). They have also been shown to interact with parasites within the GIT (Athanasiadou & Kyriazakis, 2004).…”

Section: Bioactivity Of Plant Secondary Metabolitesmentioning

confidence: 99%

“…However, more recently, the beneficial effects of PSM in animals (and man) have also been investigated (Douglas et al 1995;Kinghorn & Kennelly, 1997;Pfannhauser et al 2001;Cross et al 2004;James et al 2004;Nash, 2004;Bento et al 2005). A classic example of a compound that was initially considered as problematic when consumed by animals is mimosine.…”

Section: Phytochemicals: Effects In Animalsmentioning

confidence: 99%

“…N balance studies have demonstrated an increase in faecal N, often ascribed to undigested complexes between tannins and feed or microbial N. However, in some cases faecal N content is greater than N availability in the feed, and Barry (1989) has suggested a compensatory tannin-induced increase in microbial growth. It has been demonstrated that when tannins or tannin-containing materials are administered orally to chickens endogenous losses are increased substantially, presumably a result of interaction between the tannin and the epithelial tissue within the GIT and also the microflora within the GIT (Muhammed et al 1994;Mansoori & Acamovic, 1998a,b;Acamovic & Stewart, 2000;Bento et al 2005). This interaction is likely to account, at least in part, for the invariable reduction in apparent digestibility coefficients of N and amino acids, and metabolisable energy found in animals that consume tannins.…”

Section: Tanninsmentioning

confidence: 99%

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Biochemistry of plant secondary metabolites and their effects in animals

2005

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Plant secondary metabolites, which include a wide variety of phytochemicals, have always been constituents of the diets of man and other animals. Although a high proportion of these phytochemicals have been considered to be of little value in plants (although this view is changing), they have frequently been shown to have adverse effects on animals when ingested. The effects depend to a great extent on the chemistry of the compounds, their concentration in the diet and the amount consumed, and are further dependent on the health status of the animals. Traditionally, most studies of the effects of these compounds on animals have focused on their adverse effects and how to alleviate them. However, recent public concern about the use of synthetic compounds in animal diets to enhance performance and health and welfare issues, coupled with changes in regulations on the use of synthetic medicaments, has stimulated interest and research in the use and effects of phytochemicals in the diets of farmed animals. Phytochemicals vary in their chemistry but can be divided into hydrophilic and hydrophobic compounds, of which a wide variety of polyphenolic and terpenoid compounds, as well as alkaloids, carbohydrates and non-protein amino acids, invoke special interest. The chemistry, biochemistry and mechanisms of action of these compounds in plants and their effects in animals when ingested will be explored. Phytochemicals: Effects in animalsAs plant secondary metabolites (PSM) are an extremely large group of compounds, a comprehensive overview of their biochemistry, bioactivity and chemistry is not possible in a relatively short review paper. The importance of PSM in ecology, human foods and animal feeds, and as pharmaceuticals with chemical and biochemical attributes has already been described in some detail

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“…Tanin berpengaruh terhadap pengikatan mikrobia terhadap substrat dan aktivitas enzim (Bento et al, 2005). Gas H 2 , CO 2 dan asam asetat yang dihasilkan pada tahap pengasaman dengan bantuan bakteri metanogenesis akan membentuk gas CH 4 dan CO 2 (Fiesinger et al, 2006), dengan demikian penurunan produksi H 2 yang disebabkan oleh kandungan tanin dalam serasah daun jati dapat mempengaruhi produksi dan volume gas pada digester.…”

Section: Volume Biogasunclassified

PENGARUH JENIS KOTORAN TERNAK SEBAGAI SUBSTRAT DENGAN PENAMBAHAN SERASAH DAUN JATI (Tectona grandis) TERHADAP KARAKTERISTIK BIOGAS PADA PROSES FERMENTASI

Widyasmara¹,

Pratiwiningrum²,

Yusiati³

2012

BuletinPeternak

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INTISARIBiogas adalah gas yang dihasilkan dari aktivitas biologi dalam proses fermentasi anaerob dan sebagai energi terbarukan. Penelitian bertujuan untuk mengetahui pengaruh penggunaan kotoran sapi dan kuda sebagai substrat dalam pembentukan gas metan pada proses fermentasi. Percobaan dilakukan dengan 2 perlakuan, yaitu P1 untuk perlakuan biogas dengan kotoran sapi dan P2 untuk perlakuan dengan menggunakan kotoran kuda. Pada setiap perlakuan terdiri atas 3 level, yaitu dengan penambahan serasah daun jati sebanyak 0, 5, dan 10%. Penelitian dilakukan sebanyak 3 kali ulangan dengan pengambilan sampel sebanyak 4 kali pada hari ke-10, 20, 30, dan 40. Variabel yang diukur adalah volume biogas, kadar gas metan, dan produksi gas metan. Pengolahan data penelitian menggunakan perhitungan analisis split-plot. Hasil penelitian menunjukkan bahwa terjadi perbedaan yang signifikan terhadap biogas dengan substrat kotoran sapi dan kotoran kuda yang disebabkan oleh perbedaan sistem pencernaan antara sapi dan kuda sehingga mengakibatkan kandungan bahan organik dalam feses kuda lebih tinggi daripada bahan organik dalam feses sapi. Selain itu interaksi waktu juga mempengaruhi produksi biogas sebagai hasil akhirnya. Namun demikian, penambahan serasah daun jati tidak memiliki interaksi positif terhadap peningkatan produksi biogas, hal ini disebabkan karena terdapatnya kandungan tanin dalam daun jati.(Kata kunci: Kotoran sapi, Kotoran kuda, Serasah daun jati, Biogas) ABSTRACT Biogas was produced from biological activities in anaerobic fermentation

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The influence of tannin, pectin and polyethylene glycol on attachment of 15N-labelled rumen microorganisms to cellulose

Cited by 39 publications

References 45 publications

Effect of chestnut and quebracho tannins on fatty acid profile in rumen liquid- and solid-associated bacteria: an in vitro study

Effect of chestnut and quebracho tannins on fatty acid profile in rumen liquid- and solid-associated bacteria: an in vitro study

Biochemistry of plant secondary metabolites and their effects in animals

PENGARUH JENIS KOTORAN TERNAK SEBAGAI SUBSTRAT DENGAN PENAMBAHAN SERASAH DAUN JATI (Tectona grandis) TERHADAP KARAKTERISTIK BIOGAS PADA PROSES FERMENTASI

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