CA2354300A1 - Process for dehydration of berries - Google Patents

Process for dehydration of berries Download PDF

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Publication number
CA2354300A1
CA2354300A1 CA002354300A CA2354300A CA2354300A1 CA 2354300 A1 CA2354300 A1 CA 2354300A1 CA 002354300 A CA002354300 A CA 002354300A CA 2354300 A CA2354300 A CA 2354300A CA 2354300 A1 CA2354300 A1 CA 2354300A1
Authority
CA
Canada
Prior art keywords
antioxidant
berries
rich berries
rich
drying
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.)
Granted
Application number
CA002354300A
Other languages
French (fr)
Other versions
CA2354300C (en
Inventor
Timothy D. Durance
Ziba Vaghri
Christine H. Scaman
David D. Kitts
Jian Hua Wang
Chun Hu
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.)
University of British Columbia
Original Assignee
University of British Columbia
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 University of British Columbia filed Critical University of British Columbia
Priority to CA2354300A priority Critical patent/CA2354300C/en
Publication of CA2354300A1 publication Critical patent/CA2354300A1/en
Application granted granted Critical
Publication of CA2354300C publication Critical patent/CA2354300C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/0205—Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B9/00—Preservation of edible seeds, e.g. cereals
    • A23B9/02—Preserving by heating
    • A23B9/04—Preserving by heating by irradiation or electric treatment
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B9/00—Preservation of edible seeds, e.g. cereals
    • A23B9/16—Preserving with chemicals
    • A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B9/20—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/03—Products from fruits or vegetables; Preparation or treatment thereof consisting of whole pieces or fragments without mashing the original pieces
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • A23L3/54—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution using irradiation or electrical treatment, e.g. ultrasonic waves
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
    • A23P30/30—Puffing or expanding
    • A23P30/32—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Nutrition Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A process for drying antioxidant-rich berries (such as blueberries) to preserve their antioxidant action and their antioxidant compounds is disclosed. The process may conventionally dry the antioxidant-rich berries to remove 0 to 90 % of the initial mass of water associated with them, but the important step is subjecting the antioxidant-rich berries to vacuum microwave drying (VMD) at an absolute pressure of 0 to 200 millimeters of mercury (mm Hg) (preferably 30 to 60 mm Hg) and 0.1 to 2 watts of microwave power/gram of berries (preferably 0.5 to 1 watt/gram) to reduce the moisture content to a residual moisture content of less than 35% of the dry weight of the final dry product.

Claims (17)

We claim
1 A process for drying antioxidant-rich berries containing an initial mass of water to preserve their antioxidant action and their antioxidant compounds comprising preliminary drying the antioxidant-rich berries to remove 0 to 90 % of the initial mass of water associated with the antioxidant-rich berries, subjecting antioxidant-rich berries to vacuum microwave drying (VMD) at an absolute pressure of 0 to 200 millimeters of mercury (mm Hg) and 0.1 to 2 watts of microwave power/gram of said antioxidant-rich berries containing said initial mass of water to produce dried antioxidant-rich berries wherein the moisture content of said antioxidant-rich berries containing an initial mass of water is reduced to a residual moisture content of less than 35% of the dry weight of said dried antioxidant-rich berries.
2 A process for drying antioxidant-rich berries as defined in claim 1 wherein said residual moisture content is between 10% and 25% of the dry weight of said dried antioxidant-rich berries
3 A process for drying antioxidant-rich berries as defined in claim 1 wherein said absolute pressure is between 30 and 60 mm Hg.
4 A process for drying antioxidant-rich berries as defined in claim 2 wherein said absolute pressure is between 30 and 60 mm Hg.
A process for drying antioxidant-rich berries as defined in claim 1 wherein said microwave power is applied at 0.5 to 1 watt/gram of antioxidant-rich berries.
6 A process for drying antioxidant-rich berries as defined in claim 2 wherein said microwave power is applied at 0.5 to 1 watt/gram of antioxidant-rich berries.
7 A process for drying antioxidant-rich berries as defined in claim 3 wherein said microwave power is applied at 0.5 to 1 watt/gram of antioxidant-rich berries.
8 A process for drying antioxidant-rich berries as defined in claim 4 wherein said microwave power is applied at 0.5 to 1 watt/gram of antioxidant-rich berries.
9 A process for drying antioxidant-rich berries as defined in claim 1 wherein said preliminary drying removes less than 70% of said initial mass of water.
Aprocess for drying antioxidant-rich berries as defined in claim 1 wherein said VMD
includes a cooling step following application of microwave power wherein said dried antioxidant-rich berries are subject to a vacuum without application of microwave power.
11 A process for drying antioxidant-rich berries as defined in claim 4 wherein said VMD
includes a cooling step following application of microwave power wherein said dried antioxidant-rich berries are subject to a vacuum without application of microwave power.
12 A process for drying antioxidant-rich berries as defined in claim 8 wherein said VMD
includes a cooling step following application of microwave power wherein said dried antioxidant-rich berries are subject to a vacuum without application of microwave power.
13 A process for drying antioxidant-rich berries as defined in claim 9 wherein said VMD
includes a cooling step following application of microwave power wherein said dried antioxidant-rich berries are subject to a vacuum without application of microwave power.
14 A process for drying antioxidant-rich berries as defined in any one of claims 1, 2 or 3 wherein said antioxidant-rich berries are blueberries.
15 A process for drying antioxidant-rich berries as defined in any one of claims 4, 5 or 6 wherein said antioxidant-rich berries are blueberries.
16 A process for drying antioxidant-rich berries as defined in any one of claims 7, 8 or 9 wherein said antioxidant-rich berries are blueberries.
17 A process for drying antioxidant-rich berries as defined in any one of claims 10, 11 or 12 wherein said antioxidant-rich berries are blueberries.
CA2354300A 2001-07-30 2001-07-30 Process for dehydration of berries Expired - Lifetime CA2354300C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2354300A CA2354300C (en) 2001-07-30 2001-07-30 Process for dehydration of berries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2354300A CA2354300C (en) 2001-07-30 2001-07-30 Process for dehydration of berries

Publications (2)

Publication Number Publication Date
CA2354300A1 true CA2354300A1 (en) 2003-01-30
CA2354300C CA2354300C (en) 2010-07-06

Family

ID=4169610

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2354300A Expired - Lifetime CA2354300C (en) 2001-07-30 2001-07-30 Process for dehydration of berries

Country Status (1)

Country Link
CA (1) CA2354300C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009049409A1 (en) 2007-10-15 2009-04-23 Enwave Corporation Apparatus and method for microwave vacuum-drying of organic materials
WO2010006443A1 (en) * 2008-07-18 2010-01-21 Sun-Rype Products Ltd. Method and system for producing viscous fruit product

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10542768B1 (en) 2015-11-18 2020-01-28 Tyson Foods, Inc. Method and apparatus for drying food item

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009049409A1 (en) 2007-10-15 2009-04-23 Enwave Corporation Apparatus and method for microwave vacuum-drying of organic materials
US10178873B2 (en) 2007-10-15 2019-01-15 Enwave Corporation Apparatus and method for microwave vacuum-drying of organic materials
WO2010006443A1 (en) * 2008-07-18 2010-01-21 Sun-Rype Products Ltd. Method and system for producing viscous fruit product

Also Published As

Publication number Publication date
CA2354300C (en) 2010-07-06

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Effective date: 20210730