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The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus >
No.25 (1978/12) >

 
Title :甘蔗糖蜜の粘性に関する研究 : 第 1 報甘蔗糖蜜の粘性と多糖類(農芸化学科)
Title alternative :On the viscosity of sugarcane molasses : 1. Viscosity and polysaccharide of sugarcane molasses (Department of Agricultural Chemistry)
Authors :仲宗根, 洋子
岡崎, 浩晴
外間, 宏一
Authors alternative :Nakasone, Yoko
Okazaki, Hiroharu
Hokama, Koichi
Issue Date :1-Dec-1978
Abstract :糖蜜およびそのアルコール沈澱画分の粘度を測定し, 多糖類と糖蜜の粘性との関係について検討した。アルコール沈澱画分やその水可溶性多糖類の粘度は, 糖蜜そのものの粘度よりも著しく高いことから, 多糖類および無機成分(アルコール沈澱画分に著量含有した)は, 糖蜜の粘性を増加させる主要な因子であると推定された。各工場の糖蜜は, Bx20%の糖蜜1リットルにつき2∿4gの多糖類を含有した。糖蜜の多糖類の50∿70%は水可溶部に存在し, この水可溶性多糖類は, 二種以上のヘミセルロースと一種以上のグルカンから成ることを確認した。
The present paper aimed to study the relation of the viscosity and polysaccharides of sugarcane molasses. Seventy five percent ethanol precipitate and its water soluble fraction were obtained from ten samples of molasses produced in Okinawa and Tokunoshima in 1976. The viscosity of both the 75% ethanol precipitate and its water soluble fraction was remarkably higher than that of original molasses. The 75% ethanol precipitate was found to contain about 20% of polysaccharides and about 65% of ash. Therefore, the two constituents of 75% ethanol precipitates were considered to be a main cause of the viscosity of molasses. The quantity of polysaccharides ranged from 2 to 4 grams per liter of diluted molasses (Brix 20%), and most of polysaccharides were contained in the water soluble fraction from 75% ethanol precipitate. It was found that the polysaccharides of water soluble fraction comprised more than two kinds of hemicellulose and at least one of glucan.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4201
Citation :琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.25 p.247 -255
Appears in Collections:No.25 (1978/12)

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