With reference to the usefulness of the by-products of sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass fuel for the generation of energy. 2. Molasses can be used as one of the feed stocks for the production of synthetic chemical fertilizers. 3. Molasses can be used for the production of ethanol. Select the correct answer using the codes given below.

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CollectorBabu · Accepted Answer

Correct Answer: 1 and 3 only. Sugarcane is one of the most promising agricultural sources of biomass energy in the world. Sugarcane produces mainly two types of biomass – sugarcane trash and bagasse. Sugarcane trash is the field residue remaining after harvesting the sugarcane stalk while bagasse is the fibrous residue left over after milling of the sugarcane, with 45-50% moisture content and consisting of a mixture of hard fibre, with soft and smooth parenchymatous (pith) tissue with high hygroscopic property. Bagasse is often used as a primary fuel source for Sugar mills; when burned in quantity, it produces sufficient heat and electrical energy to supply all the needs of a typical Sugar mill, with energy to spare. Sugarcane molasses is a by-product of sugarcane products that can be used as bioethanol production. Bioethanol is ethanol produced through a fermentation process that can be done by various microorganisms such as Saccharomyces cerevisiae.  From the above we see that two statements are correct, hence correct option is C.

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