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EFFECTS OF CHEMICAL TREATMENTS AND CONTROLLED ATMOSPHERES ON POST-HARVEST NITRATE-NITRITE CONVERSION IN SPINACH.

Author(s) : AWORTH O. C.

Type of article: Article

Summary

SUBSTANTIAL NITRITE ACCUMULATED IN SPINACH HELD IN LOW O2 (1%) AT 283 K (10 C) FOR 10-15 DAYS RELATIVE TO THAT HELD IN AIR. HIGH CO2 (15-18%) AT 283 K REDUCED NITRITE ACCUMULATION PROVIDED THE STORAGE PERIOD DID NOT EXCEED 10 DAYS. NITRATE REDUCTASE ACTIVITY WAS REDUCED 80% IN LEAVES HELD FOR 2 DAYS AT 283 K AND COULD NOT BE DETECTED IN LEAVES HELD FOR 5 DAYS OR LONGER. LEAVES DIPPED IN 1% AND 5% DHA-S (SODIUM DEHYDROACETATE) AND SUBSEQUENTLY HELD FOR 15 DAYS AT 283 K SHOWED SIGNS OF PHYSIOLOGICAL INJURY AND ACCUMULATED HIGH LEVELS OF NITRITE, PARTICULARLY AT THE 1% CONCENTRATION, RELATIVE TO WATER-DIPPED CONTROLS. LITTLE CONVERSION OF NITRATE TO NITRITE OCCURRED IN FRESH SPINACH HELD DRY.

Details

  • Original title: EFFECTS OF CHEMICAL TREATMENTS AND CONTROLLED ATMOSPHERES ON POST-HARVEST NITRATE-NITRITE CONVERSION IN SPINACH.
  • Record ID : 1981-0108
  • Languages: English
  • Publication date: 1980/05
  • Source: Source: J. Food Sci.
    vol. 45; n. 3; 496-498; 501; 2 fig.; 3 tabl.; ref.
  • Document available for consultation in the library of the IIR headquarters only.

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