3.1.2.6 TABLE 1 – SUGAR LOSS : TEMPERATURE

Table 1: Sugar loss from sugar beets during storage

Temperature ( C)	Damage	Days	Degree-days	Total Sugar Loss (%)	Per day Sugar Loss (%)	Per Cd Sugar Loss (%)	At 270 Cd Sugar Loss (%)	Comment	Source
Seasonal	Commercial	≤ 85	na	na	na	0.0188	5.1	Clamp	[1]
Seasonal	Commercial	≤ 85	0 – 270	na	na	0.013	3.5	Clamp	[2]
Seasonal	Commercial	≤ 85	0 – 450	na	na	0.024	6.5	Clamp	[2]
Seasonal	Commercial	≤ 85	270 – 450	na	na	0.042	11.3	Clamp	[2]
Mostly ≤ 4.5	Commercial	40	na	3.8	0.095	na	na	Pile – ventilated	[3] tab. 1
Mostly ≤ 4.5	Commercial	38	na	6.1	0.161	na	na	Pile – ventilated	[3] tab. 1
≤ 13, ≤ 4.5 (16d)	Commercial	40	na	7.0	0.175	na	na	Pile	[3] tab. 1
≥ 7.0	Commercial	38	na	7.5	0.197	na	na	Pile	[3] tab. 1
5	Extraa	21	105	na	0.00	0.0000	0.0	Controlled	[4] fig. 7 *
5	Minimal	21	105	na	0.05	0.0096	2.6	Controlled	[4] fig. 7 *
5	Normal	62	310	2.29	0.037	0.0074	2.0	Controlled	[2] fig. 1*
5	Normal	79	395	4.42	0.056	0.0112	3.0	Controlled	[2] fig. 1*
10	Normal	46	460	4.03	0.088	0.0088	2.4	Controlled	[2] fig. 1*
10	Normal	30	300	2.66	0.089	0.0089	2.4	Controlled	[2] fig. 1*
12	Extraa	21	252	na	0.15	0.0129	3.5	Controlled	[4] fig. 7 *
12	Minimal	21	252	na	0.03	0.0021	0.6	Controlled	[4] fig. 7 *
15	Normal	20	300	2.06	0.103	0.0069	1.9	Controlled	[2] fig. 1*
15	Normal	30	450	4.57	0.152	0.0102	2.8	Controlled	[2] fig. 1*
20	Extraa	21	420	na	0.44	0.0221	6.0	Controlled	[4] fig. 7 *
20	Minimal	21	420	na	0.09	0.0045	1.2	Controlled	[4] fig. 7 *
20	Normal	15	300	3.43	0.228	0.0114	3.1	Controlled	[2] fig. 1*
20	Normal	24	480	4.79	0.2	0.0100	2.7	Controlled	[2] fig. 1*

* Data extracted from figure.

^a Tumbled in cleaning drum 45 seconds. 

Loss per day calculated as total loss / total days       

[1] Jaggard, K. W., et al. (1997). “Changes in the weight and quality of sugarbeet (Beta vulgaris) roots in storage clamps on farm.” The Journal of Agricultural Science 129(3): 287-301.

[2] Legrand, G. and A. Wauters (2012). New experiments on long term storage of sugar beets: effect of different storage temperatures according to the thermal time and effect of the harvesting time according to different varieties. 73rd IIRB congress, Brussels,.

[3] Downie, A. (1950). 1949 results of ventilated storage of sugar beets. Proc. Amer. Soc. Sug. B. Tech. 

[4] Kenter, C., et al. (2006). “Sugarbeet as raw material – Advanced storage management to gain good processing quality.” Zuckerindustrie. Sugar industry 131(10): 706-720.