GB606882A - Method of dehydrating vegetable food products - Google Patents

Method of dehydrating vegetable food products

Info

Publication number
GB606882A
GB606882A GB20347/44A GB2034744A GB606882A GB 606882 A GB606882 A GB 606882A GB 20347/44 A GB20347/44 A GB 20347/44A GB 2034744 A GB2034744 A GB 2034744A GB 606882 A GB606882 A GB 606882A
Authority
GB
United Kingdom
Prior art keywords
briquettes
dried
dehydrated
electrodes
high frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB20347/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB606882A publication Critical patent/GB606882A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

606,882. Drying food blocks. STANDARD TELEPHONES & CABLES, Ltd. Oct. 20, 1944, No. 20347. Convention date, Dec. 2, 1943. [Class 49] [Also in Group XI] Compressed blocks of partially dried edible portions of fruits or vegetables in raw or cooked condition are dehydrated by high frequency dielectric heating under reduced pressure. Briquettes A of size 6 in. x 3 in. x ¥ in. of carrot or beet shreds dried to 15 per cent water content are formed under a pressure of 300-700 lb. per sq. in. and the briquettes are dried to 1 per cent moisture content by placing between the electrodes 1 and 2 in the chamber 4, heating the briquettes to 110‹- 150‹F. by connection of the electrodes with the oscillator B operated at 10-29 megacycles, and maintaining sub-atmospheric pressure in the chamber by the pump 5, the removal of water vapour being assisted by allowing a small quantity of air to enter through the adjustable inlet 6. The dehydrated briquettes are enclosed in impervious wrappers, of, e.g. airtight paper or metal. The Specification as open to inspection under Sect. 91 comprises also dehydration by high frequency electrical heating within a vacuum of any food product. This subject-matter does not appear in the Specitication as accepted.
GB20347/44A 1943-12-02 1944-10-20 Method of dehydrating vegetable food products Expired GB606882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US606882XA 1943-12-02 1943-12-02

Publications (1)

Publication Number Publication Date
GB606882A true GB606882A (en) 1948-08-23

Family

ID=22031139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20347/44A Expired GB606882A (en) 1943-12-02 1944-10-20 Method of dehydrating vegetable food products

Country Status (1)

Country Link
GB (1) GB606882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247815A (en) * 1990-08-03 1992-03-11 Univ Kansas State Dielectric heating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247815A (en) * 1990-08-03 1992-03-11 Univ Kansas State Dielectric heating

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