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Marcone 2004

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Abilene Christian University
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Food Research International 37 (2004) 901–912 Composition and properties of Indonesian palm civet coffee (Kopi Luwak) and Ethiopian civet coffee Massimo F. Marcone * Department of Food Science, Ontario Agricultural College, Guelph, Ont., Canada N1G 2W1 Received 19 May 2004; accepted 25 May 2004 Abstract This research paper reports on the findings of the first scientific investigation into the various physicochemical properties of the palm civet (Kopi Luwak coffee bean) from Indonesia and their comparison to the first African civet coffee beans collected in Ethiopia in eastern Africa. Examination of the palm civet (Kopi Luwak) and African civet coffee beans indicate that major physical differences exist between them especially with regards to their overall color. All civet coffee beans appear to possess a higher level of red color hue and being overall darker in color than their control counterparts. Scanning electron microscopy revealed that all civet coffee beans possessed surface micro-pitting (as viewed at 10,000 magnification) caused by the action of gastric juices and digestive enzymes during digestion. Large deformation mechanical rheology testing revealed that civet coffee beans were in fact harder and more brittle in nature than their control counterparts indicating that gestive juices were entering into the beans and modifying the micro-structural properties of these beans. SDS–PAGE also supported this observatio ...
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