5. TABLE 1 – SUGAR LOSS : TEMPERATURE

5. TABLE 1 – SUGAR LOSS : TEMPERATURE

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Table 1: Sugar loss from sugar beets during storage

Temperature ( C)DamageDaysDegree-daysTotal Sugar Loss (%)Per day Sugar Loss (%)Per Cd Sugar Loss (%)At 270 Cd Sugar Loss (%)CommentSource
SeasonalCommercial≤ 85nanana0.01885.1Clamp[1]
SeasonalCommercial≤ 850 – 270nana0.0133.5Clamp[2]
SeasonalCommercial≤ 850 – 450nana0.0246.5Clamp[2]
SeasonalCommercial≤ 85270 – 450nana0.04211.3Clamp[2]
Mostly ≤ 4.5Commercial40na3.80.095nanaPile – ventilated[3] tab. 1
Mostly ≤ 4.5Commercial38na6.10.161nanaPile – ventilated[3] tab. 1
≤ 13, ≤ 4.5 (16d)Commercial40na7.00.175nanaPile[3] tab. 1
≥ 7.0Commercial38na7.50.197nanaPile[3] tab. 1
5Extraa21105na0.000.00000.0Controlled[4] fig. 7 *
5Minimal21105na0.050.00962.6Controlled[4] fig. 7 *
5Normal623102.290.0370.00742.0Controlled[2] fig. 1*
5Normal793954.420.0560.01123.0Controlled[2] fig. 1*
10Normal464604.030.0880.00882.4Controlled[2] fig. 1*
10Normal303002.660.0890.00892.4Controlled[2] fig. 1*
12Extraa21252na0.150.01293.5Controlled[4] fig. 7 *
12Minimal21252na0.030.00210.6Controlled[4] fig. 7 *
15Normal203002.060.1030.00691.9Controlled[2] fig. 1*
15Normal304504.570.1520.01022.8Controlled[2] fig. 1*
20Extraa21420na0.440.02216.0Controlled[4] fig. 7 *
20Minimal21420na0.090.00451.2Controlled[4] fig. 7 *
20Normal153003.430.2280.01143.1Controlled[2] fig. 1*
20Normal244804.790.20.01002.7Controlled[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.

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