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植酸在金属防护中的应用 总被引:3,自引:0,他引:3
张洪生 《四川化工与腐蚀控制》1999,2(5):35-38
植酸是一种少见的多齿金属螯合剂,因其特有的功能及天然无毒特性,目前在日本等发达国家普遍应用。本文通过对植酸的结构分析,阐述了在植酸在金属防护处理中的作用及特殊功能,综述了国内外植酸的研究及应用成果。 相似文献
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无毒植酸在金属防护中的应用 总被引:14,自引:0,他引:14
植酸是一种少见的多齿金属螯合剂,存在于油料和谷类种子中,因其特有的功能及天然无毒特性,目前在日本等发达国家普遍应用。通过对植酸结构分析,阐述了植酸在金属防护及电镀中的作用及特殊功能,综述了国内外植酸研究及应用成果。 相似文献
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快速简便测定植酸的方法 总被引:2,自引:0,他引:2
目前用于测定植酸的方法要么设备、标准品昂贵,要么消化困难,终点难以判断,不适于一般的常规分析。经过分析比较,发现硝酸钍返滴定法、铜盐-碘量法、三氯化铁滴定法可快速、准确、简便地测定植酸含量,适用于一般的工业分析和科研。 相似文献
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Nicolas A. Deak Lawrence A. Johnson 《Journal of the American Oil Chemists' Society》2007,84(4):369-376
Phytic acid (myo-inositol hexaphosphate) is present in soybeans and soy protein products at 1–2% dry matter. Phytate causes
poor absorption of essential electrolytes and minerals, and binds to proteins and co-precipitates with isoelectric soy protein
isolates. We determined how phytic acid partitioned during different procedures to prepare soy protein ingredients. Procedure
and soybean variety significantly affected phytic acid content and recovery. High-sucrose/low-stachyose (HS/LS) soybeans contained
significantly (P < 0.05) less phytate than did a typical variety of commodity soybeans (IA2020). In addition, phytate was more readily extracted
from the commodity soybeans than from HS/LS soybeans. Among all procedures studied, ethanol-washed soy protein concentrate
had the highest phytate contents and yields in the protein products for both soybean varieties (~80 mg/g and 99%, respectively).
When protein extraction was carried out at room temperature the protein products had significantly lower phytate yields (60–78%)
than when extraction was at 60 °C (80–99%). The protein products obtained from normal soybeans had significantly higher phytate
contents than the same products made from HS/LS soybeans. When fractionating soy proteins, the glycinin-rich fraction contained
significantly less phytate than the β-conglycinin fraction except for the fractionation procedure performed at room temperature
instead of 4 °C. 相似文献
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本文就植酸的化学特性、提取方法、检测分析方法及其在食品、医药日用化工、金属加工等行业中的应用、发展前景进行了简要的分忻与探讨. 相似文献
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