Makanjuola, Olakunle Moses and OSINFADE,, B.G. (2017) Determination of Sugars in Yams Under Storage During the Dry Season. Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT), 11 (11). pp. 24-27. ISSN 2319-2399
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Abstract
The sugar contents in three species of yams viz white yam (Dioscorea rotundata), water yam (Dioscorea alata) and yellow yam (Dioscorea cayenensis) under storage during the dry season were investigated using standard methods. The sugars determined for a period of 4 months during storage at ambient conditions were maltose, sucrose, glucose, raffinose, fructose, galactose, arabinose and xylose. Generally the trends as revealed by the result showed that total sugars in all the three yam species increased as the storage time prolonged. Maltose sugar for example increased to 24% and 64% at the end of 2 month to 4 month storage for white yam, 26.7% and 60% for yellow yam and 66.7% and 123% for water yam suggesting that sugar contents in yam tubers has the tendency to increase meaningfully during storage due to the breakdown and subsequent hydrolysis of starch into sugars in addition to considerable variations in composition not only between species, but also with a single specie according to cultural, climate and adaptic factors of environment in which the yam are grown, the maturity at harvest as well as the length of time which they have been stored.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Mr Taiwo Egbeyemi |
| Date Deposited: | 21 Jul 2020 10:01 |
| Last Modified: | 21 Jul 2020 10:01 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/1044 |
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