Feasibility of Sustaining Sugars in Sweet Sorghum Stalks During Post-Harvest Stage by Exploring Cultivars and Chemicals: A Desk Study

    Srinivasa Rao, P and Kumar, C G and Malapaka, J and Kamal, A and Reddy, B V S (2012) Feasibility of Sustaining Sugars in Sweet Sorghum Stalks During Post-Harvest Stage by Exploring Cultivars and Chemicals: A Desk Study. Sugar Tech, 14 (1). pp. 21-25. ISSN 0974-0740

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    Abstract

    In the recent years sweet sorghum is emerging as an important feedstock for bioethanol production. It was observed that total soluble sugar yield (TSSY) increases with time in the post-anthesis phase depending on the length of crop cycle. The qualitative and quantitative sugar loss of up to 50% or more occurs due to delay in harvest during post-physiological maturity stage depending on the genotype, weather and soil conditions, and the time lag between harvest and crushing of the stalks. Hence, a desk study was conducted to identify suitable cultivars and/or explore the use of chemicals that sustain sugars in the post-harvest phase. In case of delayed harvest beyond physiological maturity stage, growing of cultivars such as SPSSV 30, ICSV 25275, ICSV 25280 and SPV 422 that sustain sugar yield at post-physiological maturity, is recommended. As there are no published reports on sweet sorghum, the literature from sugarcane and wine industries were analyzed and inferences drawn from these industries suggest the evaluation of chemicals like sodium benzoate, potassium metabisulphate, sodium metabisulphite, ammonia, SO2, vanillin and acetic acid (vinegar) which may arrest the post-harvest deterioration of sweet sorghum stalks before juice extraction.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Sweet sorghum – Post-harvest losses – Bioethanol – Juice quality – Chemicals
    Subjects: Mandate crops > Sorghum
    Depositing User: Users 6 not found.
    Date Deposited: 18 Jan 2012 03:50
    Last Modified: 05 Oct 2012 11:44
    URI: http://oar.icrisat.org/id/eprint/5340
    Official URL: http://dx.doi.org/10.1007/s12355-011-0133-x
    Projects: UNSPECIFIED
    Funders: Indian Council of Agricultural Research - NAIP, International Fund for Agricultural Development
    Acknowledgement: The authors wish to express their sincere thanks for financial assistance from the National Agricultural Innovation Project (NAIP)-Indian Council of Agricultural Research (ICAR) under component 2 and International Fund for Agriculture Development (IFAD) through Grant no. 974.
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