Kabupaten Jember merupakan salah satu sentral penghasil tembakau tertinggi di Jawa Timur dan pada tahun 2018 produksinya mencapai 163,267,5 ton. Produksi tanaman menghasilkan limbah organik yang berbahaya yaitu nikotin. Nikotin alkaloid beracun aktif, berminyak, tersusun atas unsur karbon, hidrogen, nitrogen, sangat larut terhadap alkohol, eter, minyak tanah, air. Kelarutannya berisiko mengalam...

The transfer of a methyl group from S-adenosyl-L-methionine onto the carboxyl group of alpha-1,4-linked-galactosyluronic acid residues in the pectic polysaccharide homogalacturonan (HGA) is catalyzed by an enzyme commonly referred to as pectin methyltransferase. A pectin methyltransferase from microsomal membranes of tobacco (Nicotiana tabacum) was previously characterized (F. Goubet, L.N. Coun...