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University of the Ryukyus Repository >
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Bulletin of Arts & Science Division, University of the Ryukyus. Mathematics and sciences >
No.4 (1960/12) >
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| Title | : | 廃糖蜜の酸化生成物について シュウ酸および D-glucosaccharic acidの生成 |
| Title alternative | : | On the Oxidation Products of Molasses-Manufacturing of oxalic acid and D-glucosaccharic acid |
| Authors | : | 外間, 宏三 |
| Authors alternative | : | Hokama, Kozo |
| Issue Date | : | Dec-1960 |
| Abstract | : | Sugar is one of the important industrial products in Okinawa. Molasses are produced in large quantities as a side product of sugar industry in this island.Nevertheless most of them are exported to Japan,very few quantity is consumed here. I attelnpted to utilize these molasses as a raw of usefull materials except alcohol fermentation by applylng chemical operations. I obtained oxalic acid and potassium salt of D-glucosaccharic acid by dealing molasses with nitric acid. White crystal is produced as a oxidation product by using concentrated nitric acid at temperature of 40°-50℃ for several days. It was certified oxalic acid in consequence of measuring m.p.and I.R.spectra etc. Similarly white crystal is obtained by oxidizing with diluted nitric acid at temp.of50°-60℃ until the solution becomes to syrup and removal of nitric acid perfectly. Compared withI.R.spectra and elementary analysis datas of potassium salt of D-glucosaccharic acid obtained from starch and D-glucose,the white crystal is confirmed potassium salt of D-glucosaccharic acid. |
| Type Local | : | 紀要論文 |
| ISSN | : | 0557-577X |
| Publisher | : | 琉球大学文理学部 |
| URI | : | http://hdl.handle.net/20.500.12000/22207 |
| Citation | : | 琉球大学文理学部紀要 理学篇 no.4 p.31 -36 |
| Appears in Collections | : | No.4 (1960/12)
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| NO4P031.pdf | | 1660Kb | Adobe PDF | View/Open |
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