Somaiya

www.somaiya.edu

Karnataka Institute of Applied Agricultural Research

Crop : Sugarcane.

Field : Plant Breeding

Collaborator : Self

Title : Observations of Big Mill Trials of TS-1 at Somaiya Sugar Works, Sameerwadi.

Author : R.Narasimhan,R .S.Sachan,G.S.C.Rao and A.T. Yaragattikar

Year : 1980

To evaluate performance of TS-1, a thick cane mutant of Co 419 on a commercial scale, a big mill trial has been conducted on 19th January 1981. For this purpose TS-1 was planted in two acres area on 13th February 1980. Total quantity of cane raised from this area was subjected to trial for over 45 minutes. Comparision was made by crushing an equal amount of commercial sugarcane (Co 419, Co 740 and Co 6415) supplyed to S.S.W. on the same day. Mill test reports of both TS-1 and Control are given in Tables 4:1, 4:2. It was found that in mill test TS-1 gave 10.58 expected recovery as compared to 9.21 of mixture of three varieties.

TABLE - 4:1 . MILL TEST REPORT.
SMR/RD/Lab/24/
Date of Test : 19-1-1981 (TS-1) Season : 1980-81.
No. Big Mill trial data of TS-1
1. Time and duration				: 45 minutes.
2. Qty. of cane crushed				: 73.110 tonnes.
3. Crushing rate/hr				: 97.48
4. Qty. of M.J.
a) Gross				: 75.90 0
b) Net				: 75.672
5. Qty. of Imbibition water				: 21.600
6. Qty. of bagasse				: 18.81
7. a) M.J. (Nett) % cane				: 103.50
b) I. Water % cane				: 29.54
c) I. Water % Fibre				: 242.13
d) Bagasse % cane				: 25.73
8. Analysis results (average analysis figures to be reported).
		A N A L Y S I S
Material		Brix	Pol	Purity	Fibre	Moist. %	Pol %
						Bag	Bag
1. Cane			13.08		12.20	71.5
2. 1st Mill Juice : F		18.55	15.56	83.88		65.0	11.13
	D	18.35	15.27	83.22
3. 2nd Mill Juice : F		12.13	10.00	82.44
	D	12.69	10.36	81.64		58.5	6.52
4. 3rd Mill Juice : F		4.24	3.34	78.77
	D	5.8	4.52	77.93		55.0	4.82
5. 4th Mill Juice : F		2.1	1.61	76.67		49.0	2.67
	D	3.04	2.27	74.67
6. M.J.		14.82	11.97	80.77
7. Efficiency data.
a) Primary Extrn.					: 51.87 (Pol)
b) Secondary Extrn.					: 42.88
c) Mill Extrn.					: 94.75
d) R.M.E. (12.5)					: 94.60
e) Abs JUice % Cane					: 85.60
f) Coloidal Water % Cane					: -
g) Added Water % Fibre					: 242.13
h) Undil Juice lost in bagasse					: 19.24
i) % Cane					: -
ii) % Fibre					: 9.12
i) Java ratio					: 84.06
j) E.R.Q.V.					:
a) M.J./P.J.					: 94.38
b) LMJ/PJ					: 83.35
k) Added Water Extracted in M.J. % cane.					: 20.88
8. Expected Recovery					: 10.58 (2.5 losses)
9. Milling Conditions
a) Turbine Engine speed I) 5600, II) 6000, III) 5800, IV) 4800
b) Surface speed of Mills
c) Hydrolic loads					Grown side		Off side
					i) 3000		3000
					ii) 2800		2800
					iii) 3200		3200
					iv) 3500		3500
10. Observed of Bx. curves (Annexed).					:
11. Details of cane quality (annexed).					:
12. Average Analysis Juice.					Brix	Pol	Purity
1st Mill					18.45	15.46	83.79
2nd Mill					12.01	9.85	82.01
3rd Mill					5.01	3.91	78.04
4th Mill					2.40	1.81	75.42
13. Remarks : Reg. Visual observations covering juice drainage choking, Sanitation etc.
Sd/-		Sd/-			Sd/-
Lab Incharge		Lab Chemist			Chief Chemist

TABLE - 4:2 . MILL TEST REPORT (Control).

SMR/RD/Lab/24/
Date of Test : 19-1-1981 Season : 1980-81.
Report of Big Mill trial data of general cane supplied to S.S.W. taken as control, Variety, Co 419, Co 740 and Co 6415.
1. Time and duration				: 57 minutes.
2. Qty. of cane crushed				: 75.467 tonnes.
3. Crushing rate/hr				: 78.95
4. Qty. of M.J.				: 69.00
a) Gross				: 69.00
b) Net				: 68.793
5. Qty. of Imbibition water				: 18.9000
6. Qty. of bagasse				: 25.367
7. a) M.J. (Net) % cane				: 91.16
b) I. Water % cane				: 25.04
c) I. Water % Fibre				: 158.78
d) Bagasse % cane				: 33.61
8. Analysis results (average analysis figures to be reported).
A N A L Y S I S
Material		Brix	Pol	Purity	Fibre	Moist. %	Pol %
						Bag	Bag
1. Cane			11.71		15.77	66.5
2. 1st Mill Juice : F		17.78	14.84	83.46		63.0	8.83
	D	17.75	14.70	82.82
3. 2nd Mill Juice : F		11.99	9.82	81.90		53.0	5.80
	D	13.44	10.75	79.99
4. 3rd Mill Juice : F		5.34	4.19	78.46		50.5	4.45
	D	8.18	6.36	77.75
5. 4th Mill Juice : F		2.41	1.84	76.35		49.5	2.67
	D	4.43	3.31	74.72
6. M.J.		14.75	11.86	80.41
7. Efficiency data.
a) Primary Extrn.				:50.85(Pol)
b) Secondary Extrn.				: 41.49
c) Mill Extrn.				: 92.34
d) R.M.E. (12.5)				: 94.22
e) Abs Juice % Cane				: 82.12
f) Coloidal Water % Cane				: -
g) Added Water % Fibre				: 158.78
h) Undil Juice lost in bagasse				: 20.08
i) % Cane				: 13.61
ii) % Fibre				: 13.73
i) Java ratio				: 78.91
j) E.R.Q.V.				:
a) M.J./P.J.				: 94.44
b) LMJ/PJ				: 84.46
k) Added Water Extracted in M.J. % cane.				: 15.58
8. Expected Recovery				: 9.21 (2.5 losses)
9. Milling Conditions
a) Turbine Engine speed I) 5600, II) 6000, III) 5800, IV) 4800
b) Surface speed of Mills
c) Hydrolic loads					Grown side		Off side
					i) 3000		3000
					ii) 2800		2800
					iii) 3200		3200
					iv) 3500		3500
10. Observed of Bx. curves (Annexed).					:
11. Details of cane quality (annexed).					:
12. Average Analysis Juice.					Brix	Pol	Purity
1st Mill					18.35	14.96	81.53
2nd Mill					12.16	9.72	79.93
3rd Mill					6.91	5.39	78.00
4th Mill					3.51	2.63	74.93
13. Remarks : Reg. Visual observations covering juice drainage choking, Sanitation etc.
Sd/-		Sd/-			Sd/-
Lab Incharge		Lab Chemist			Chief Chemist

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