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US3974301A Expired / Lapsed US ⏱️ 0.0 years remaining

Dehydrated banana product

Assignee: Massachusetts Institute of Technology
•
Filing: 1974-09-23
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Granted: 1976-08-10
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Expires: 1994-09-23
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Abstract

Abstract This invention provides a process for preparing a dehydrated banana which comprises slicing the fruit of a ripe banana along its length from 1 to 3 times to form lengthwise peeled banana slices having the carpel region exposed along their length, contacting the slices with steam to increase the temperature of the interior of the slices up to about 85°C to 95°C and maintaining that temperature for about 1/2 to 4 minutes, and dehydrating said steam blanched slices at a temperature from 50°C to 65°C to reduce the moisture content of the banana slices to less than about 20%. The slices are contacted with steam before they are substantially discolored due to enzymic discoloration. The product obtained thereby retains a substantial portion of the characteristic cellular structure of the banana, is substantially free of enzymic discoloration, has a water activity of less than about 0.6, and is rehydratable to yield a product with an appearance, texture, color, aroma and flavor similar to that of fresh ripe banana pulp. The dehydrated product retains those properties for at least 3 months under normal storage conditions.

Inventors

  • 👤 Nancy N. R. Luh
  • 👤 James K. Palmer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:59
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/02; A23B7/0205; A23B7/022; A23B7/06

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 201 words
A dehydrated banana product stabilized against enzymatic discoloration, having the carpel portion of a banana exposed along the length of the product, said product having a substantial portion of the cellular structure of a whole banana, having a moisture content less than about 20%, and being substantially free of enzymic discoloration, and being rehydrateable to an edible product while retaining at least about 25% of the major constituents of a banana that characterize banana aroma and taste prepared by the process which comprises slicing a ripe banana lengthwise 1 to 3 times to form a plurality of banana slices having the carpel region exposed along their length to form slices having the relatively same size, contacting said slices with steam to increase the temperature of the interior of said slices up to about 85°C to 95°C for about 1/2 to 4 minutes, said slices being contacted with steam prior to said slices being substantially discolored due to enzymic discoloration, and dehydrating said steam blanched slices in a relatively dry atmosphere at a temperature from about 50°C to about 65°C for a period of time sufficient to reduce the water content of the banana slices to less then about 20 weight percent.
Claim 2
Dependent Claim 201 words
A dehydrated banana product stabilized against enzymatic discoloration, having the carpel portion of a banana exposed along the length of the product, said product having a substantial portion of the cellular structure of a whole banana, having a moisture content less than about 20%, and being substantially free of enzymic discoloration, and being rehydrateable to an edible product while retaining at least about 25% of the major constituents of a banana that characterize banana aroma and taste prepared by the process which comprises slicing a ripe banana lengthwise 1 to 3 times to form a plurality of banana slices having the carpel region exposed along their length to form slices having the relatively same size, contacting said slices with steam to increase the temperature of the interior of said slices up to about 85°C to 95°C for about 1/2 to 4 minutes, said slices being contacted with steam prior to said slices being substantially discolored due to enzymic discoloration, and dehydrating said steam blanched slices in a relatively dry atmosphere at a temperature from about 50°C to about 65°C for a period of time sufficient to reduce the water content of the banana slices to less then about 20 weight percent.
Claim 3
Dependent Claim 19 words
The product obtained by the process of claim 1 having a length of between about 0.1 and 1 inch.

References Cited (Backward Citations)

US1138887A Cited
US1908489A Cited
US2192273A Cited
US2592332A Cited
US3259508A Cited
US3386838A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-08-10 1980-02-09 1980-08-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-08-10 1984-02-09 1984-08-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-08-10 1988-02-09 1988-08-10 $7700.00 Window Closed / Lapsed

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