Researches on the Stability of Porphyra-334 Solution and Its Influence Factors

ZHANG Zhaohui; GAO Xin; Yuri TashiroShingo MatsukawaHiroo Ogawa

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Researches on the Stability of Porphyra-334 Solution and Its Influence Factors

机译：研究porphyra - 334的稳定性解决方案及其影响因素

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The stability of porphyra-334 in solutions of different pH values at different temperatures was studied. In high acidic conditions, below pH3, the absorption maximum, λ_(max), of porphyra-334 shows hypsochromic shift towards lower wavelength and the absorbance also has a light decrease. In high alkaline conditions of over pH12, the absorbance of porphyra-334 decreases and an unknown compound with a peak maximum at 225 nm appears. The peak height of the unknown compound increases with the decrease of absorbance of porphyra-334. This might be related to the decomposition of porphyra-334. At room temperature, porphyra-334 solutions, except high alkaline solutions, are stable. Increasing the temperature, especially higher than 60℃ , promotes the decomposition of porphyra-334 and causes the absorbance decrease both in basic and acidic solutions.

机译：porphyra - 334的解决方案的稳定性不同的pH值在不同的温度下研究。吸收最大,λ_ (max), porphyra - 334显示浅色转向低波长吸光度也有一种轻微的减少。高碱性的条件在pH12,吸光度porphyra - 334和降低未知化合物的最大峰值在225海里出现了。吸光度的增加而减少porphyra - 334。分解porphyra - 334。温度、porphyra - 334的解决方案,除了高碱性的解决方案,是稳定的。温度,尤其是高于60℃,促进porphyra - 334和分解导致吸光度降低基本和酸性的解决方案。

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来源
《Journal of Ocean University of China》 |2004年第2期|166-170|共5页
作者
ZHANG Zhaohui; GAO Xin; Yuri TashiroShingo MatsukawaHiroo Ogawa;
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作者单位

Department of Food Science and Technology , Tokyo University of Marine Science and Technology , Minato, Tokyo 108-8477, Japan;

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原文格式 PDF
正文语种英语
中图分类 P-093;
关键词
PH; hypsochromic shift; INFLUENCING FACTORSABSORBANCEAbsorption spectra;

机译：PH值;蓝移;影响FACTORSABSORBANCEAbsorption光谱;

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Researches on the Stability of Porphyra-334 Solution and Its Influence Factors

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