Nutritive and antioxidative potential of fresh and stored pomegranate industrial byproduct as a novel beef cattle feed

Ariel Shabtay, Harel Eitam, Yaakov Tadmor, Alla Orlov, Ayala Meir, Pnina Weinberg, Zwika G. Weinberg, Yaira Chen, Arieh Brosh, Ido Izhaki, Zohar Kerem

Research output: Contribution to journalArticlepeer-review


Pomegranate peel is a nutritive-rich byproduct whose amounts are extensively growing due to the exponential increase in the production of pomegranate juice and "ready to eat" arils. Pomegranate peel is a rich source for antioxidants and thus may serve in the prevention of cattle diseases and in the improvement of beef products, making it an attractive component in beef cattle diets. The present study aims to evaluate the effect of commonly used storage practices on the nutritive and antioxidative properties of pomegranate peel. In general, storage conditions preserved most antioxidant capacity. Ensiling ambivalently affected the nutritive values of the peel and promoted increased levels of antioxidative components. In addition to polyphenols, nonphenolic components, such as α- and γ-tocopherols, contributed to the total antioxidative capacity, and several minerals found in the peel added to its nutritional value. Dietary supplementation with fresh peels promoted significant increases in feed intake and α-tocopherol concentration in the plasma, with positive tendency toward increased weight gain of bull calves. All in all, the nutritive value and the antioxidant capacity of pomegranate peel turn it into a favorable health-promoting constituent of feedlot beef cattle diet.

Original languageEnglish
Pages (from-to)10063-10070
Number of pages8
JournalJournal of Agricultural and Food Chemistry
Issue number21
StatePublished - 12 Nov 2008


  • Antioxidant activity
  • Average daily gain
  • Condensed tannins
  • Flavonoids
  • Hydrolyzable tannins
  • Minerals
  • Polyphenols
  • Pomegranate peels
  • Punicalagin
  • Storage conditions
  • α-tocopherol
  • γ-tocopherol

ASJC Scopus subject areas

  • General Agricultural and Biological Sciences
  • General Chemistry


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