Molecular Weight, Protein Binding Affinity and Methane Mitigation of Condensed Tannins from Mangosteen-peel (Garcinia mangostana L)

Asian-Australasian Journal of Animal Sciences
P PaengkoumM F Jahromi

Abstract

The objectives of this study were to determine the molecular weight of condensed tannins (CT) extracted from mangosteen (Garcinia mangostana L) peel, its protein binding affinity and effects on fermentation parameters including total gas, methane (CH4) and volatile fatty acids (VFA) production. The average molecular weight (Mw) of the purified CT was 2,081 Da with a protein binding affinity of 0.69 (the amount needed to bind half the maximum bovine serum albumin). In vitro gas production declined by 0.409, 0.121, and 0.311, respectively, while CH4 production decreased by 0.211, 0.353, and 0.549, respectively, with addition of 10, 20, and 30 mg CT/500 mg dry matter (DM) compared to the control (p<0.05). The effects of CT from mangosteen-peel on in vitro DM degradability (IVDMD) and in vitro N degradability was negative and linear (p<0.01). Total VFA, concentrations of acetic, propionic, butyric and isovaleric acids decreased linearly with increasing amount of CT. The aforementioned results show that protein binding affinity of CT from mangosteen-peel is lower than those reported for Leucaena forages, however, the former has stronger negative effect on IVDMD. Therefore, the use of mangosteen-peel as protein source and CH4 mitigat...Continue Reading

Citations

Jul 20, 2019·Animal Science Journal = Nihon Chikusan Gakkaihō·Lee YejunLee Sung Sill
Sep 5, 2019·Asian-Australasian Journal of Animal Sciences·Thiwakorn Ampapon, Metha Wanapat
Sep 14, 2019·Animals : an Open Access Journal From MDPI·Thiwakorn AmpaponMetha Wanapat
Mar 18, 2021·Scientific Reports·Neda Emami, Reza Ferdousi
Mar 21, 2021·Journal of Animal Physiology and Animal Nutrition·Thiwakorn Ampapon, Metha Wanapat
Apr 1, 2021·Animal : an International Journal of Animal Bioscience·Y K ZhangW M Wang

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