V. Misra1, A.K. Mall1*
A.K. Shrivastava1, S.
S.P. Shukla1 and Mohd.
I. Ansari2 ???
Institute of Sugarcane Research, Lucknow-226 002, India
Botany, University of Lucknow, Lucknow-226 007, India
Author Email :
Aim: The post-harvest
deterioration is most vexing problems of sugar industry and these losses due
to Leuconostoc spp. cause enormous depreciation in cane tonnage and
recovery. Thus, the objective of this study was to assess the invasion of Leuconostoc
spp. in sugarcane.
Methodology: Single internode
is divided in three layers, viz., rind, first half and second half. Leuconsotoc
spp. was grown and identified on specific growth media using juice from three
portions of both the internodes (with cracks and without cracks) separately.
Total Leuconostoc load, bacterial characterization, total soluble
solids (TSS), reducing sugars (RS) and dextran were also determined.
Results: The results
revealed that cracked portions were incurred with Leuconostoc,
however, rind layer had highest load followed by first half than the second
half. More RS, high TSS and dextrans were quantified in cracked internode
than without crack internode. Rind layer reported to have high RS, TSS and
dextrans than the other portions. ?????????????
Interpretation: Canes possessing
cracks had higher invasion of Leuconostoc spp., RS and dextran content
than the ones lacking cracks leading to higher loss in sucrose content. Thus,
there is a need to control these bacteria in sugarcane, especially in
Key words: Dextran, Leuconostoc, Reducing sugar, Sucrose,