Journal of Food, Agriculture and Environment

Evaluation of sweet sorghum varieties for their juice characteristics

Author(s):

Mani Arora*, Gurvinder S. Kocher*, Rabinder S. Sohu

Recieved Date: 2017-02-13, Accepted Date: 2017-03-20

Abstract:

In view of the importance of sweet sorghum as an ideal substrate for bioethanol production, the present study was conducted to detect the suitable genotypes which may be cultivated in Punjab’s agro-climatic conditions yielding good quality juice. Five sorghum genotypes. viz., CSH22SS, CSV24SS, CSV19SS, SSV84 and PSC4, were evaluated with respect to the time to attain physiological maturity, juice yield and quality by sowing them on five different dates, starting from mid-May to mid-July with 15 days interval. Significant differences were observed for days to maturity and juice yield between different sowing dates for all the tested genotypes. Similarly, based on physicochemical analysis of the juice, all the genotypes showed significant differences for Brix, total sugars, reducing sugars and sucrose within the environment, i.e. within the same sowing date as well as between different sowing dates within the genotypes. CSH22SS and CSV24SS recorded maximum Brix and reducing sugars when sown in mid June but the total sugars and sucrose content was higher when sown in mid July. Physicochemical analysis revealed that the genotypes CSH22SS and CSV24SS can be most suitably sown in the month of June to obtain high juice yield of 0.182-0.300 L/kg. The juice quality of these two genotypes was also at par with Brix ranging from 16.6-18°B, total sugars ranging from 14.19-14.41 g/100 mL, reducing sugars ranging from 2.32-2.71 g/ 100 mL and sucrose content ranging from 9.28-10.24 g/100 mL. Other genotypes viz., CSV19SS, SSV84 and PSC4, however, lacked in one or the other attributes. 

Keywords:

Sorghum bicolor, sweet sorghum, juice yield, juice quality

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Journal: Journal of Food, Agriculture and Environment
Year: 2017
Volume: 15
Issue: 2
Category: Agriculture
Pages: 58-61

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