Modulatory effects of condensed tannin fractions of different molecular weights from a Leucaena leucocephala hybrid on the bovine rumen bacterial community in vitro

Saminathan M 1 , Sieo CC 1 , Gan HM 2 , Ravi S 1 , Venkatachalam K 3 , Abdullah N 3 Show all authors , Wong CM 4 , Ho YW 1

Affiliations 

  • 1 Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
  • 2 School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
  • 3 Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
  • 4 Biotechnology Research Institute, Universiti Malaysia Sabah, 88999, Kota Kinabalu, Sabah, Malaysia
J Sci Food Agric, 2016 Oct;96(13):4565-74.
PMID: 26910767 DOI: 10.1002/jsfa.7674

Abstract

BACKGROUND: Condensed tannin (CT) fractions of different molecular weights (MWs) may affect rumen microbial metabolism by altering bacterial diversity. In this study the effects of unfractionated CTs (F0) and five CT fractions (F1-F5) of different MWs (F1, 1265.8 Da; F2, 1028.6 Da; F3, 652.2 Da; F4, 562.2 Da; F5, 469.6 Da) from Leucaena leucocephala hybrid-Rendang (LLR) on the structure and diversity of the rumen bacterial community were investigated in vitro.

RESULTS: Real-time polymerase chain reaction assay showed that the total bacterial population was not significantly (P > 0.05) different among the dietary treatments. Inclusion of higher-MW CT fractions F1 and F2 significantly (P 

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