The effect of pistachio by-product extracts treatment in protecting soybean meal and canola meal protein from rumen microbial degradation

Journal of the Science of Food and Agriculture
Pirouz ShakeriReza Tahmasbi

Abstract

The industrial de-hulling of fresh pistachio generates a large quantity of pistachio by-products (PBP). The present study aimed to investigate the effects of treating soybean meal (SBM) and canola meal (CM) with tannin extracts derived from PBP on the protein fractions according to the Cornell Net Carbohydrates and Protein System (CNCPS), rumen degradability, and ruminal and post-ruminal crude protein (CP) disappearance in an in situ trials using three fistulated steers. The extracts of PBP were obtained via different solvents and then added to SBM and CM, so that the final concentrations of added tannins were 0, 5 and 10 g kg-1 dry matter. The CNCPS soluble proteins (fractions A + B1 ) of CP and B1 fraction of CP were lower (P < 0.01) in SBM and CM treated with PBP extracts than untreated meals. Treating SBM with different PBP extracts (except 5 g kg-1 tannin water extract) and CM with 5 g kg-1 tannin water extract and 10 g kg-1 tannin ethanol extract decreased (P < 0.01) ruminal disappearance of CP. From the in situ results, the rapidly degradable fraction (a) of CP decreased (P < 0.01) by treating SBM with different PBP extracts and CM with 5 and 10 g kg-1 tannin water extracts, whereas the slowly degradable fraction (b) of ...Continue Reading

References

Oct 1, 1980·The Journal of Pediatrics·G S BissetS Kaplan
Sep 4, 2010·Journal of the Science of Food and Agriculture·Amlan K Patra, Jyotisna Saxena
Jul 5, 2016·Journal of the Science of Food and Agriculture·Pirouz ShakeriPhilip E Vercoe

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