CANE QUALITY IN DIFFERENT REGIONS OF INDIA
From the point of view of Agroclimatic conditions under which sugarcane is extensively
cui ivated, the country can be divided into three major regions—
(a) Deccan tract comprising Maharashtra and major parts of Karnataka and Gujarat.
(b) Southern starts of Andhra, Tamilnadu, Kerala and Southern parts of Karnataka.
(c) North Indian states of UP, Bihar, Punjab and Rajasthan.
As is well-known he climatic conditions have a great bearing on the maturity and sugar
build-up in sugarcane. The important composition characteristics of the cane quality
which influence the process of manufacture, sugar recovery and finally the productivity
in process of manufacture in different regions are as under—
(a) Deccan—Cane composition in Deccan tract is characterised by high sucrose 13-14.5%,
medium fibre 12.14% and low non-sugars. The reducing sugars are in the range of 0.4
to 0.7% while ash varies from 0.4 to 0.8% juice. The CaO content of raw juice is
around 800-1100 mgms per litre. In the early part of the crushing campaign when
cane is immature the sucrose content is 11-12% while juice purities are about 80
which rise with the advance of maturity to 87-88 when the sucrose content reaches
peak of about 14-14.5% cane.
(b) South—This is low recovery region, where the pol in cane ranges from 10 to 12%
while the juice purities lie between 78-82. The reducing sugar content is about 1.3%
while the ash content is around 0.5-0.6%.
(c) North India—The canes of this region have high fibre 13-16% and low sugar content
10-13%. The juices are rich in phosphate (300-400 ppm) but contain low CaO. The
reducing sugar content of juice varies between about 0.4 to 1% while the mineral
matter i.e. ash ranges from 0.5 to 0.7%.
Notwithstanding the limitations imposed by climatic and other natural factors, modern
cultivation practices based on research work of the various institutes, together with
development of new varieties hold promise of improving the quality of cane in different
regions of the country.
QUALITY CONTROL
It would thus be obvious that control on quality of cane is not only related to sugar and
non-sugar content of cane but also to the two vital factors discussed above viz. staleness
and extraneous matter content The sugar factory laboratory has undoubtedly an
important role to play in assessing the quality in totality taking into account the
requirements of efficient processing of raw material and monitoring of the cane quality
would involve collection and dissemination of date pertaining to—
(a) pol % cane
(b) extraneous matter in cane
(c) time lag between 'cut' to 'crush'.
With close coordination between field staff and the laboratory which would serve as
monitoring agency evaluating the quality of cane supplied to factory the overall
performance of the process is bound to improve.
From the point of view of Agroclimatic conditions under which sugarcane is extensively
cui ivated, the country can be divided into three major regions—
(a) Deccan tract comprising Maharashtra and major parts of Karnataka and Gujarat.
(b) Southern starts of Andhra, Tamilnadu, Kerala and Southern parts of Karnataka.
(c) North Indian states of UP, Bihar, Punjab and Rajasthan.
As is well-known he climatic conditions have a great bearing on the maturity and sugar
build-up in sugarcane. The important composition characteristics of the cane quality
which influence the process of manufacture, sugar recovery and finally the productivity
in process of manufacture in different regions are as under—
(a) Deccan—Cane composition in Deccan tract is characterised by high sucrose 13-14.5%,
medium fibre 12.14% and low non-sugars. The reducing sugars are in the range of 0.4
to 0.7% while ash varies from 0.4 to 0.8% juice. The CaO content of raw juice is
around 800-1100 mgms per litre. In the early part of the crushing campaign when
cane is immature the sucrose content is 11-12% while juice purities are about 80
which rise with the advance of maturity to 87-88 when the sucrose content reaches
peak of about 14-14.5% cane.
(b) South—This is low recovery region, where the pol in cane ranges from 10 to 12%
while the juice purities lie between 78-82. The reducing sugar content is about 1.3%
while the ash content is around 0.5-0.6%.
(c) North India—The canes of this region have high fibre 13-16% and low sugar content
10-13%. The juices are rich in phosphate (300-400 ppm) but contain low CaO. The
reducing sugar content of juice varies between about 0.4 to 1% while the mineral
matter i.e. ash ranges from 0.5 to 0.7%.
Notwithstanding the limitations imposed by climatic and other natural factors, modern
cultivation practices based on research work of the various institutes, together with
development of new varieties hold promise of improving the quality of cane in different
regions of the country.
QUALITY CONTROL
It would thus be obvious that control on quality of cane is not only related to sugar and
non-sugar content of cane but also to the two vital factors discussed above viz. staleness
and extraneous matter content The sugar factory laboratory has undoubtedly an
important role to play in assessing the quality in totality taking into account the
requirements of efficient processing of raw material and monitoring of the cane quality
would involve collection and dissemination of date pertaining to—
(a) pol % cane
(b) extraneous matter in cane
(c) time lag between 'cut' to 'crush'.
With close coordination between field staff and the laboratory which would serve as
monitoring agency evaluating the quality of cane supplied to factory the overall
performance of the process is bound to improve.
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