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BACKGROUNDInstant coffee production generates large amounts of a waste known as spent coffee ground (SCG), which is rich in carbohydrate (∼50%), oil and aromatic compounds.
RESULTSSteam pretreatment by itself solubilised up to 10.7% of the SCG mass, which was recovered as soluble solids in the liquor from pretreatment. The highest extent of soluble solid recovery from pretreatment itself (10.7%)...
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