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EXTRACTION OF STABLE STRAWBERRY JUICE CONCENTRATES BY COMBINED FREEZE-CONCENTRATION AND FREEZE-DRYING.

ETUDE CONCERNANT L'EXTRACTION DE CONCENTRES STABLES DE JUS DE FRAISES PAR LES METHODES ASSOCIEES DE CRYOCONCENTRATION ET DE LYOPHILISATION.

Author(s) : NIEDZIELSKI Z., IRZYNIEC Z.

Type of article: Article

Summary

THE PURPOSE OF THE RESEARCH IS BENEFITING FROM THE HIGH QUALITY OF THE CONCENTRATES OBTAINED BY FREEZE-DRYING, WHILE SAVING COST BY PREVIOUS FREEZE-CONCENTRATION. THE AUTHORS MAINLY STUDY THE EFFECT OF THE RATE OF THE CONCENTRATION AND OF THE TEMPERATURE OF HEATING PLATES DURING SUBLIMATION ON THE FINAL QUALITY ESTIMATED AFTER THE RETENTION OF ANTHOCYANS, L-ASCORBIC ACID AND TOTAL ASCORBIC AND DEHYDROASCORBIC ACIDS IN THE DRY CONCENTRATE. THE STUDY CONCLUDES WITH THE FEASIBILITY OF THE MIXED PROCESS, WITHOUT CHANGE IN COLOUR OR IN VITAMIN C CONTENT, THE RETENTION OF THE SELECTED CRITERIA DEPENDING ONLY ON FREEZE-DRYING TEMPERATURE. J.R.

Details

  • Original title: ETUDE CONCERNANT L'EXTRACTION DE CONCENTRES STABLES DE JUS DE FRAISES PAR LES METHODES ASSOCIEES DE CRYOCONCENTRATION ET DE LYOPHILISATION.
  • Record ID : 1986-0289
  • Languages: French
  • Source: Ind. aliment. agric. - vol. 102 - n. 4
  • Publication date: 1985/04
  • Document available for consultation in the library of the IIR headquarters only.

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