Role of Different Bleaching Earths for Sunfl ower Oil in a Pilot Plant Bleaching System

• Autorzy: Topkafa M. , Ayyildiz H. F. , Arslan F. N. , Kucukkolbasi S. , Durmaz F. , Sen S. , Kara H.
• Języki publikacji: EN

Abstrakty

EN

The purpose of present study is to investigate the efficiency of different kinds of Turkish commercial bleaching earth materials for changes in different colour pigment concentrations in neutralized sunfl ower oils. The bleaching experiments were performed in a pilot system under at stable vacuum (50 mmHg) and temperature (100ºC) for 30 min. By examining the changes in chlorophyll, β-carotene and red colour, bleaching process parameters such as type and dosage of the bleaching material were optimised. The sorption characteristics of colour pigments were evaluated using common adsorption isotherms and Scatchard plot analysis. Ads-3 acid-activated earth material at 1% (w/w) per samples was found to be the most appropriate sorbent and the amount of sorbed pigments was calculated as 1.01x10–4 mmol/g ads. for chlorophyll, 1.15x10–3 mmol/g ads. for carotene and 1.70 red on Lovibond colour scale. The procedure indicated that this system can be easily adapted to the actual oil refi ning systems.

• Wydawca: -
• Czasopismo: Polish Journal of Food and Nutrition Sciences
• Rocznik: 2013
• Tom: 63
• Numer: 3
• Opis fizyczny: p.147-154,fig.,ref.

Twórcy

autor

Topkafa M.

• Selcuk University, Faculty of Science, Department of Chemistry, 42075 Campus, Konya, Turkey

autor

Ayyildiz H. F.

• Seluk University, Faculty of Science, Department of Chemistry, 42075 Campus, Konya, Turkey

autor

Arslan F. N.

• Karamanoglu Mehmetbey University, Faculty of Science, Department of Chemistry, 70010 Campus, Karaman, Turkey

autor

Kucukkolbasi S.

• Selcuk University, Faculty of Science, Department of Chemistry, 42075 Campus, Konya, Turkey

autor

Durmaz F.

• Selcuk University, Faculty of Science, Department of Chemistry, 42075 Campus, Konya, Turkey

autor

Sen S.

• Helvacizade Edible Oil Company, Konya, Turkey

autor

Kara H.

• Konya Necmettin Erbakan University, Faculty of Science, Department of Biotechnology, Konya, Turkey

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