Grapefruit Drying for Dairy Housebound Industry

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Erdem T., Öztekin M. S., Şahan Z.

TARMEK 202133. Ulusal Tarımsal Mekanizasyon ve Enerji Kongresi1-03 Ekim 2021 (Çevrimiçi) Isparta / Türkiye, Isparta, Turkey, 1 - 03 October 2021, vol.1, pp.49

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Isparta
  • Country: Turkey
  • Page Numbers: pp.49
  • Çukurova University Affiliated: Yes


Dairy housebound industry and consumer demand higher quality product. These demands are leading both researcher and livestock industry to improve the feed quality by means of feed additive. In a food industry there is considerably

industrial and agricultural waste. One of the industrial waste products is Grapefruit pulps are seasonally obtained from food industry in our country. The citrus products that processed and evaluated are bitter and sweet grapefruit, orange and lemon, totally production amount is about 4 million tones. After the citrus is processed to fruit juice, approximately 35-40% of pulp

occurs. This amount shows that citrus pulp has a significant economic potential in our country. Although the contents of citrus pulp vary depending on the type of fruit and the region where it is harvested, they are generally a source of ruminant feed, rich in carbohydrates and cellulose and poor in protein. For this reason, they are accepted as an energy-rich feed source in ruminant feeding.

The objective of the study is to evaluate the usage of dried grapefruit pulps for feed sources in ruminant nutrition. The study was conducted by laboratory test with infrared and hot air drying of grapefruit pulp. Grapefruit pulps were dried by

hot air, infrared drying and combination of them at 70 and 80 C°. The drying time and moisture content of samples were recorded and some drying parameters were explored in detail. The whole study is donated by Research Council of Turkey

(TUBİTAK) by 101R114 number project.

The drying time of grapefruit pulp were 14; 11; 30; 27; 23 and 17 hours for İnfrared drying, hot air drying and combination of them at 70 and 80 C° respectively.

Keywords: Drying, Pulp, Citrus, Ruminant.