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beta amylase/maïs

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Continuous extraction of alpha- and beta-amylases from Zea mays malt in a PEG4000/CaCl2 ATPS.

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In the present work, alpha- and beta-amylase enzymes from Zea mays malt were recovered by continuous extraction in a PEG/CaCl2 aqueous two-phase system (ATPS). The influences of the flux rate (RQ), free area of vane (A(free)) and vane rotation (RV) on enzyme recovery were studied by optimization

EMF radiations (1800 MHz)-inhibited early seedling growth of maize (Zea mays) involves alterations in starch and sucrose metabolism.

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The present study investigated the impact of 1800-MHz electromagnetic field radiations (EMF-r), widely used in mobile communication, on the growth and activity of starch-, sucrose-, and phosphate-hydrolyzing enzymes in Zea mays seedlings. We exposed Z. mays to modulated continuous wave homogenous

beta-Amylases in Cereals : A Study of the Maize beta-Amylase System.

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beta-Amylase of maize (Zea mays L.) caryopses was studied during development and germination by means of enzymic, electrophoretic, and immunochemical techniques. beta-Amylase activity increased during caryopsis development to a maximum value at the beginning of the water content plateau (at this

Characterization of a maize beta-amylase cDNA clone and its expression during seed germination.

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A maize (Zea mays L.) cDNA clone (pZMB2) encoding beta-amylase was isolated from a cDNA library prepared from the aleurone RNA of germinating kernels. The cDNA encodes a predicted product of 488 amino acids with significant similarity to known beta-amylases from barley (Hordeum vulgare), rye (Secale

The effect of the etched (et) mutation on the amylolytic enzyme activities in germinating kernels and seedlings of Zea mays.

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The etched (et) mutation in maize causes distinct depressions and structural gaps in the endosperm and also gives rise to virescent seedlings, α- and β-Amylase activities were observed to be higher in et (+) et (+) kernels and seedlings as compared to that of the et et mutant. The total amylase and

[The effect of phospholipids on starch metabolism].

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The presence of phospholipids reduces the breakdown of amylose catalyzed by β-amylase, phosphorylase and α-amylase. The activities of the β-amylases of sweet potato (Ipomoea batatas) and barley (Hordeum vulgare L.) disminish to less than 10% of the activity in the control without the phospholipids.
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