METHOD OF SPECIAL INDICATION FOR PREPARING ONION BULBS FOR STORAGE Russian patent published in 2008 - IPC A01F25/00 

Abstract RU 2319359 C1

FIELD: food industry.

SUBSTANCE: the present innovation deals with the technology for preparing fresh onion bulbs for storage with their subsequent application in cosmic nutrition. The innovation deals with successive extracting Mortierella globalpina micromycete biomass with a nonpolar extragent in supracritical state with water, alkali, water, acid, water, alkali and water followed by combining the first extract with a solid one to obtain the preparation out of the biomass mentioned. Distilled water, gauze filter cloths and cigarette paper should be sterilized. Then it is necessary to prepare 70%-ethanol solution upon sterilized distilled water and 0.005%-suspension of the preparation obtained out of the biomass mentioned. Onion bulbs should be inspected, each bulb should be treated with a sterilized gauze filter cloth impregnated in ethanol solution, loosely adjacent scale leaves should be removed to keep in the suspension of the preparation obtained out of biomass for 5 min; then one should cut the neck, scrape the corm to wash in neck-downwards position with ethanol solution to be dried at 35±5°C up to residual moisture content of the upper scales ranged 18-20%. Then one should treat every onion bulb with a sterilized gauze filter cloth impregnated in ethanol solution to be subjected to ultraviolet irradiation from opposite sides for 30 min/each bulb at radiation power ranged 1.5-2.5 W/cu. m. Then it is important to pack onion bulb by bulb under aseptic conditions into cigarette paper to arrange them into sterile polymeric trays to form a single layer. The innovation provides prolonged storage period of onion bulbs up to 45 d.

EFFECT: higher efficiency.

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RU 2 319 359 C1

Authors

Kvasenkov Oleg Ivanovich

Dates

2008-03-20Published

2006-08-30Filed