phytasen.

Brit.

/ˈfʌɪteɪz/, U.S.

/ˈfaɪˌteɪz/,

/ˈfaɪˌteɪs/

Origin: A borrowing from German. Etymon: German Phytase.

Etymology: < German Phytase (U. Suzuki et al. 1907, in Bull. Coll. Agric., Tokyo Imperial Univ. 7 503) < ancient Greek ϕυτόν plant (see phyto- comb. form) + German -ase -ase suffix.

Biology.

Any of a class of enzymes found esp. in cereals and yeast which convert phytic acid to myo-inositol and phosphoric acid.

ΘΚΠ

the world > life > biology > substance > process stimulators or inhibitors > other stimulators or inhibitors > [noun]

styptica1400

carrier1844

luciferase1888

luciferin1888

urease1892

peroxidase1899

protease1903

renin1903

phenolase1907

proteinase1907

phytase1908

lecithinase1910

uricase1910

phosphatase1912

prunase1912

phenoloxidase1913

oxytocin1927

phosphomonoesterase1932

androgen1936

phosphorylase1939

slow reacting substance1939

phospholipase1945

plasmin1945

bradykinin1949

nitroreductase1953

cytostatic1964

oncogen1967

autoinducer1968

1908 Jrnl. Chem. Soc. 94 i. 236 The change is shown to be due, not to putrefaction, but to an enzyme, phytase, which was isolated from rice bran and wheat bran.

1931 E. C. Miller Plant Physiol. xi. 632 The glucoside phytin is decomposed into phosphoric acid and inosite, C₆H₁₂O₆, by the action of the enzyme phytase.

1947 Nature 18 Jan. 99/2 25 ml. of the solution correspond to the phytase activity of about 15gm. barley.

1966 T. Z. Nowakowski & A. J. Clarke tr. V. Kretovich Princ. Plant Biochem. (ed. 4) vi. 215 The phytases of yeasts and flour split much of the inositol-phosphoric acid during fermentation of dough.

1991 New Scientist 3 Aug. 20/2 Pigs need phosphate in their diet, so it is added to their feed. This can be avoided by adding an enzyme called phytase instead.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phytase
释义	phytasen. Brit. /ˈfʌɪteɪz/, U.S. /ˈfaɪˌteɪz/, /ˈfaɪˌteɪs/ Origin: A borrowing from German. Etymon: German Phytase. Etymology: < German Phytase (U. Suzuki et al. 1907, in Bull. Coll. Agric., Tokyo Imperial Univ. 7 503) < ancient Greek ϕυτόν plant (see phyto- comb. form) + German -ase -ase suffix. Biology. Any of a class of enzymes found esp. in cereals and yeast which convert phytic acid to myo-inositol and phosphoric acid. ΘΚΠ the world > life > biology > substance > process stimulators or inhibitors > other stimulators or inhibitors > [noun] styptica1400 carrier1844 luciferase1888 luciferin1888 urease1892 peroxidase1899 protease1903 renin1903 phenolase1907 proteinase1907 phytase1908 lecithinase1910 uricase1910 phosphatase1912 prunase1912 phenoloxidase1913 oxytocin1927 phosphomonoesterase1932 androgen1936 phosphorylase1939 slow reacting substance1939 phospholipase1945 plasmin1945 bradykinin1949 nitroreductase1953 cytostatic1964 oncogen1967 autoinducer1968 1908 Jrnl. Chem. Soc. 94 i. 236 The change is shown to be due, not to putrefaction, but to an enzyme, phytase, which was isolated from rice bran and wheat bran. 1931 E. C. Miller Plant Physiol. xi. 632 The glucoside phytin is decomposed into phosphoric acid and inosite, C₆H₁₂O₆, by the action of the enzyme phytase. 1947 Nature 18 Jan. 99/2 25 ml. of the solution correspond to the phytase activity of about 15gm. barley. 1966 T. Z. Nowakowski & A. J. Clarke tr. V. Kretovich Princ. Plant Biochem. (ed. 4) vi. 215 The phytases of yeasts and flour split much of the inositol-phosphoric acid during fermentation of dough. 1991 New Scientist 3 Aug. 20/2 Pigs need phosphate in their diet, so it is added to their feed. This can be avoided by adding an enzyme called phytase instead. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1908
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