BIOEMIDIASI LIMBAH CAIR TAHU MENJADI NATA DE SOYA SEBAGAI PENGEMBANGAN BAHAN AJAR IPA TERAPAN KELAS XI DI SMK NEGERI 1 JOMBANG

Abstract

Cellulose is a carbohydrate-shaped fibers that are very abundant in nature and have an important role as raw material for various types of industries. This research used on liquid waste bacteria growth media knows as aA xylinum for cellulose synthesis of nata de soya with addition of granulated sugar and molasses as carbon source in a different concentration. Want to know the influence range of carbon sources and concentration of heavy, thick and heavy rough fiber layers of nata de soya as well as carbon sources and concentration of the best produce heavy, thick and heavy rough fiber. Two kinds of carbon sources examined granulated sugar with molasses and carbon sources, each with three concentrations, i.e. 5%, 7.5% and 10%. Observation of heavy, thick and heavy rough fiber produced is carried out on the 14th. Results of the study showed that the higher the concentration of the carbon source both granulated sugar and molasses that is given it will be the greater weight of the heavy, thick and coarse layer of cellulose fibers produced significant weight differences and demonstrate, thick and weighs roughly after fiber held ujo Anava. Carbon source of granulated sugar 10% generate heavy, thick, and coarse Cellulose fiber weight of the most high. The research results developed into learning materials in the form of handouts on Applied SCIENCE subjects in class XI CMS. in KD. 3.14:  Components  description of ecosystems, pollution, and the impact of living beings and KD. 4.14: Do the handling of waste in the environment

Keywords: carbon source, nata de soya, handouts