Scientific American Supplement, No. 832, December 12, 1891 by Various
page 8 of 147 (05%)
page 8 of 147 (05%)
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NEW SUGAR ITEMS. FRANCE. Water that has been used to wash frozen beets contains a small percentage of sugar. As the washing period, in such cases, is longer than with normal beets, the sugar in beet cells has time to pass through the outer walls by osmosis. The sugar loss is said to be 0.66 per cent. (?) of the weight of beets washed. Well conducted experiments show that in small but well ventilated silos, beets lose considerable weight, but very little sugar. On the other hand, in large silos with poor ventilation, the sugar loss frequently represents four to six per cent. When fermentation commences, the mass of roots is almost ruined. Sodic nitrate, if used upon soil late in the season, may overcome a difficulty that has been recently noticed. Beet fields located near swamps that are dry a portion of the year have suffered from a malady that turns leaves from green to yellow, even before harvesting period; such beets have lost a considerable amount of sugar. A new method for the analysis of saccharose and raffinose, when in the presence of inverted sugar, is said to give accurate results. The process consists in adding sulphate of copper and lime to hot |
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