Optimization of Extraction of Astaxanthin from Portunus trituberculatus by Ionic Liquids
نویسندگان
چکیده
منابع مشابه
Catalytic oxygenation of phenols by arthropod hemocyanin, an oxygen carrier protein, from Portunus trituberculatus.
The hexamer (Pt-6Hc) of swimming crab Portunus trituberculatus hemocyanin (Pt-Hc) and one of its monomeric subunits (Pt-1Hc) have been purified and converted to an efficient phenol monooxygenase (phenolase) by treatment with urea. To explore the intrinsic chemical reactivity of the dicopper center of Pt-Hc, the spectroscopic features and phenol monooxygenase (phenolase) activity of the isolated...
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آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
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We explored the possibility of using ionic liquids (ILs) as medium for efficient extraction of agarose via dissolution of red algae under varying conditions of heating or microwave irradiation. As compared to conventional methods, a very high extraction yield of good quality agarose (as high as 39 wt%) could be achieved depending upon the nature of used IL and applied experimental conditions. P...
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In the solvent extraction of metal cations into ionic liquids, use of Brønsted acid-type chelate extractants has some advantages including simplicity in controlling extraction selectivity by selecting suitable aqueous phase pH values and simple back-extraction recovery of the extracted metals using acid solutions. In this review, various fundamental and applied research on metal extraction usin...
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The extraction of pertechnetate ions from aquous solutions containing various concentrations of nitric acid into hydrophobic ionic liquids (ILs) has been examined at 25, 50 and 70 °C. The results show that the distribution ratio of Tc (DTc) between both phases weakly depends on the temperature and HNO3 concentration when IL's with relatively short aliphatic chains are used. The DTc obtained for...
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ژورنال
عنوان ژورنال: KSBB Journal
سال: 2013
ISSN: 1225-7117
DOI: 10.7841/ksbbj.2013.28.4.238