Castor oil has long been used commercially as a highly renewable resource for the chemical industry. 1,2 It is a vegetable oil obtained by pressing the seeds of the castor oil plant that is mainly cultivated in Africa,
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Castor oil seeds are predominantly cleaned and sorted by machine. Subsequently, the oil is obtained by pressing the seeds one to three times and extracting it. During cold pressing, which is preferred for pharmaceutical and cosmetic use, the
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These include techniques for external surface examination, measurement of moisture content, oil content, insect infestation detection and internal structure visualization. The advantages of machine-vision techniques over the conventional
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