DISTRIBUTION OF ASCORBATE OXIDASE ACTIVITIES IN THE FRUITS OF FAMILY CUCURBITACEAE AND SOME OF THEIR PROPERTIES

DISTRIBUTION OF ASCORBATE OXIDASE ACTIVITIES IN THE FRUITS OF FAMILY CUCURBITACEAE AND SOME OF... ABSTRACT Activities and some other properties of ascorbate oxidases (AAO) from the fruits of family Cucurbitaceae were investigated. The peel and the flesh of seven varieties had activities ranging between 35–56500 units/mg protein and 14–1250 units/mg protein, respectively. AAO from different varieties had a similar pH optimum of around 6–6.5 and a broad pH stability ranging from pH 5 or 6 to pH 10 or 11. These properties appear to be conserved in the AAO's from the family of Cucurbitaceae. The AAO's of melon cv. andes, kinsho and papaya were more susceptible to heat denaturation than AAO from pumpkin. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Food Biochemistry Wiley

DISTRIBUTION OF ASCORBATE OXIDASE ACTIVITIES IN THE FRUITS OF FAMILY CUCURBITACEAE AND SOME OF THEIR PROPERTIES

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Publisher
Wiley
Copyright
Copyright © 1995 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0145-8884
eISSN
1745-4514
D.O.I.
10.1111/j.1745-4514.1995.tb00537.x
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT Activities and some other properties of ascorbate oxidases (AAO) from the fruits of family Cucurbitaceae were investigated. The peel and the flesh of seven varieties had activities ranging between 35–56500 units/mg protein and 14–1250 units/mg protein, respectively. AAO from different varieties had a similar pH optimum of around 6–6.5 and a broad pH stability ranging from pH 5 or 6 to pH 10 or 11. These properties appear to be conserved in the AAO's from the family of Cucurbitaceae. The AAO's of melon cv. andes, kinsho and papaya were more susceptible to heat denaturation than AAO from pumpkin.

Journal

Journal of Food BiochemistryWiley

Published: Aug 1, 1995

References

  • Ascorbate oxidase in mature orange peel
    KANNER, KANNER; HAREL, HAREL; BEN‐SHALOM, BEN‐SHALOM
  • Expression of ascorbic acid oxidase in zucchini squash ( Cucurbita pepo L.)
    LIN, LIN; VARNER, VARNER
  • Neutral and acidic ascorbate oxidases from satsuma mandarin ( Citrus unshiu Marc.): isolation and properties
    SAARI, SAARI; FUJITA, FUJITA; HARAGUCHI, HARAGUCHI; MIYAZOE, MIYAZOE; TONO, TONO

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