著者

吉村 実 川喜田 哲哉 ワンチャイ チャイタス ソマニイワン チャニン

出版者

社団法人日本農芸化学会

雑誌

日本農芸化学会誌 (ISSN:00021407)

巻号頁・発行日

vol.69, no.3, pp.347-356, 1995-03

参考文献数

15

被引用文献数

1 2

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The practicality of L-glutamic acid mother liquor for use as a livestock feed additive was studied. At water activity of 0.81, mold did not grow in the feed additive during long-term storage under either aerobic or anaerobic conditions. Results of a subacute toxicity test in rats suggested the safety of the additive. The addition of the mother liquor feed additive to feed for growing swine improved the feed intake, the daily body weight gain, and the feed conversion rate. Digestibility of crude protein, crude fat, and crude fiber was increased when the feed contained a lysine supplement and the mother liquor feed additive. The urinary nitrogen excretion of pigs given a lysine supplement in the feed with the mother liquor feed additive was less than that of pigs not given a lysine supplement with or without the mother liquor. It means that the efficiency of use of proteins in the mother liquor was improved by the addition of lysine.

著者

川喜田 哲哉

出版者

日本結晶成長学会

雑誌

日本結晶成長学会誌 (ISSN:03856275)

巻号頁・発行日

vol.23, no.5, pp.430-435, 1996-12-25 (Released:2017-05-31)

参考文献数

4

被引用文献数

1

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The effects of impurities present in crystallizeds. solution on the change in the crystal habit of aspartic acid crystals were investigated. Aspartic acid is produced by an enzymatic method using fumaric acid as raw matcrials in an industrial scale. The characteristics of this method are to produce very limited amounts of sub-products such as other amino acids, compared with conventional fermentation methods. When aspartic acids were crystallized by a continuous crystallization at 50℃ with neutrallization by 98% sulfuric acid, the changes in the crystal habit from plate to pillar forms were observed with the operation times elapsed, maintaining the α form crystal structure.The plate form crystallized under the higher supersaturation in the vicinity of 5g/dl, irrespective of the existence of impurities. On the other hand, the impurities in the solution, mainly fumaric acid and malic acid, inhibited the growth rate along b-axis direction and the crystal habit changes to the pillar form crystals, when the supersaturation decreased as low as 2g/dl.

著者

川喜田 哲哉

出版者

日本海水学会

雑誌

日本海水学会誌 (ISSN:03694550)

巻号頁・発行日

vol.53, no.3, pp.148-154, 1999 (Released:2013-02-19)

著者

川喜田 哲哉

出版者

化学工学会

雑誌

化学工学 (ISSN:03759253)

巻号頁・発行日

vol.62, no.7, pp.391-395, 1998-07-05

参考文献数

16

著者

川喜田 哲哉

出版者

海水誌

雑誌

日本海水学会誌 (ISSN:03694550)

巻号頁・発行日

vol.53, no.3, pp.148-154, 1999-06-01