Comparative effects of extracted polyphenols from black and green tea wastes on in-vitro fermentability of feed ingredients

Nazak Shokrani Gheshlagh, Hamid Paya, Akbar Taghizadeh, Hamid Mohammadzadeh, Valiollah Palangi, Yousef Mehmannavaz

Abstract


The effect of using black and green tea waste extracts on the diet nutritional value was investigated with three methods of in vitro degradability, gas production, and McNiven's enzymatic digestion in the present experiment. Total phenolic compounds and total tannin for green tea extract were 20.3% and 14.8% of dry matter (DM), respectively, and for black tea were 18.7% and 12.7% of dry matter, respectively. The addition of green and black tea waste extracts reduced both gas production during incubation hours and dry matter degradability (DMD) in the diet (p < 0.05). A significantly reduced ruminal dry matter disappearance (p < 0.05) and a significantly increased post-ruminal dry matter disappearance (p < 0.05) were observed by adding black and green tea waste extracts. According to the results, the dry matter disappearance throughout the gastrointestinal tract was not significantly different between treatments. It can generally be concluded that the addition of phenolic compounds can be used depending on the nutritional strategy, such as reducing ruminal degradability and increasing rumen nutrient escape.

Keywords


Black and green tea waste; Gastrointestinal tract. In vitro; Nutritional value.

Full Text:

PDF

References


Adejoro, F. A., Hassen, A., & Akanmu, A. M. (2019). Effect of lipid-encapsulated acacia tannin extract on feed intake, nutrient digestibility and methane emission in sheep. Animals, 9(11), 863. doi: 10.3390/ani 9110863

Alirezalu, K., Hesari, J., Eskandari, M. H., Valizadeh, H., & Sirousazar, M. (2017). Effect of green tea, stinging nettle and olive leaves extracts on the quality and shelf life stability of frankfurter type sausage. Journal of Food Processing and Preservation, 41(5), e13100. doi: 10.1111/jfpp.13100

Animut, G., Puchala, R., Goetsch, A. L., Patra, A. K., Sahlu, T., Varel, V. H., & Wells, J. (2008). Methane emission by goats consuming diets with different levels of condensed tannins from lespedeza. Animal Feed Science and Technology, 144(3-4), 212-227. doi: 10.1016/j.anifeedsci.2007.10.014

Arisya, W., Ridwan, R., Ridla, M., & Jayanegara, A. (2019). Tannin treatment for protecting feed protein degradation in the rumen in vitro. In Journal of Physics: Conference Series, 1360(1), 012022. doi: 10. 1088/1742-6596/1360/1/012022




DOI: http://dx.doi.org/10.5433/1679-0359.2021v42n3Supl1p2005

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433 / 1679-0359
E-mail:  semina.agrarias@uel.br
Este obra está licenciado com uma Licença  Creative Commons Atribuição-NãoComercial 4.0 Internacional