Purification and properties of ascorbate oxidase from cucumber fruit
نویسندگان
چکیده
منابع مشابه
extraction and acetylation of purified trypsin from bovin pancreas and study of some its physico-chemical properties
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 ...
15 صفحه اولPurification and properties of amine oxidase from pea seedlings
Amine oxidase (EC 1.4.3.6) was purified from pea (Pisum sativum) seedlings with the aim of characterizing its catalytic properties. The specific activity and selectivity of the enzyme were studied with an oxygen sensor by following the kinetics of the amine oxidation reaction, catalysed by the enzyme. The enzyme catalytic constants were calculated from the transient signal of the oxygen sensor ...
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Yaoi and Tamiya (1) found that Escherichia coli and Shigella dysenteriae, grown aerobically, exhibited an absorption band which differed from those of previously described cytochromes in that it lay within the red region of the spectrum. Keilin (2) attributed this band to a cytochrome component, designated a2. Warburg et al. (3, 4), Ncgelein and Gerischcr (5), Tamiya and Yamagutchi (6), and Fuj...
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Glucose oxidase (/3-n-glucose : 02 oxidoreductase, EC 1.1.3.4) has been highly purified from the extracts of three fungi, Penicillium not&urn (1, 2), Penicillium amagasakiense (3, 4), and Aspergillus niger (5, 6). It has also been identified and sometimes partially purified from a number of other sources. Some of these sources are reviewed by Schepartz and Subers (7). Recently Pazur and Kleppe ...
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Few studies on purified bacterial reduced diphosphopyridine nucleotide (DPNH) or cytochrome oxidases have been reported, although cytochrome reduction by DPNH’ in crude bacterial extracts has repeatedly been described (l-6). Dolin (7, 8) purified a flavoprotein DPNH oxidase and peroxidase from Streptococcus jaecalis, and Lenhoff and Kaplan (9) and Lenhoff et al. (10) described the characteristi...
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ژورنال
عنوان ژورنال: Soil Science and Plant Nutrition
سال: 1990
ISSN: 0038-0768,1747-0765
DOI: 10.1080/00380768.1990.10415704