Schiff bases of fatty acid hydrazides made from Oil recovered from spent bleaching earth (ORSBE) and Acid oil (AO)were prepared. These newly synthesized Schiff bases were characterized on the basis of FT-IR, elemental analysis and evaluated for biological performance. Schiff bases exhibited mild antibacterial activities against certain micro-organisms if compared with streptomycin used as stand...

Abstract This essay considers the multiscalar manifestations of loss and destruction through material-semiotic figure “spent earth,” a toxic waste by-product generated by industrial bleaching crude oils into edible oils. Drawing on two distinct encounters with spent earth in Indonesian palm oil sector, reflects substance's unevenly distributed effects across peoples, places, generations; its as...