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Assessing sweet sorghum juice and syrup quality and fermentation efficiency

OAR@ICRISAT

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Relation http://oar.icrisat.org/7374/
259-2012
 
Title Assessing sweet sorghum juice and syrup quality and fermentation efficiency
 
Creator Kumar, C G
Rao, R N
Srinivasa Rao, P
Kamal, A
Ashok Kumar, A
Ravinder Reddy, Ch
Reddy, B V S
 
Subject Sorghum
 
Description Sweet sorghum is a C4 crop with high photosynthetic efficiency with a unique
ability of high carbon assimilation (50 g m-2 day-1) and accumulates high
concentrations of easily fermentable sugars (glucose, fructose and sucrose)
in the stalks. Hence, it is widely believed that it is an alternate energy source
that is renewable, sustainable, efficient, cost-effective, convenient and safe to
use. Sucrose is the major sugar in sweet sorghum juice which constitutes up
to 85% of the total sugars (Woods 2000). The sugar yields ranged between
1.6 to 13.2 Mg ha-1, with significant variations observed between years and
regions (Jackson et al. 1980; Reddy et al. 2007; Zhao et al. 2009). The juice
sugar content is dependent on the crop stage, because fructose is more
abundant at the early development stage, whereas sucrose tends to be
dominant after heading (Sipos et al. 2009). The sweet sorghum juice sugar
content ranged from 10 to 25 Brix% at maturity (Reddy et al. 2007; Ritter
et al. 2004). Research at the International Crops Research Institute for the
Semi-Arid-Tropics (ICRISAT) showed that sweet sorghum juice yield ranges
between 16.8 to 27.2 m3 ha-1 (Reddy et al. 2007) and accrues about 23%
additional returns vis-à-vis grain sorghum (Rao et al. 2009).
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Contributor Reddy, B V S
Ashok Kumar, A
Ravinder Reddy, Ch
Rao, P P
Patil , J V
 
Date 2013
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/7374/1/ch13_188-208.pdf
Kumar, C G and Rao, R N and Srinivasa Rao, P and Kamal, A and Ashok Kumar, A and Ravinder Reddy, Ch and Reddy, B V S (2013) Assessing sweet sorghum juice and syrup quality and fermentation efficiency. In: Developing a Sweet Sorghum Ethanol Value Chain. International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh, India, pp. 172-192. ISBN 978-92-9066-555-7