GB1297195A - - Google Patents
Info
- Publication number
- GB1297195A GB1297195A GB1297195DA GB1297195A GB 1297195 A GB1297195 A GB 1297195A GB 1297195D A GB1297195D A GB 1297195DA GB 1297195 A GB1297195 A GB 1297195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transparent
- enzyme
- solution
- food product
- food
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/22—Metallic printing; Printing with powdered inks
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
1297195 Test and device for use with coldstored food products FOOD CONTROL AB 12 March 1970 [13 March 1969] 11876/70 Heading B1X A method of indicating whether or not the temperature of a stored food product has exceeded a maximum temperature comprises exposing to the same ambient conditions as the food product and for the same time a given quantity of an enzyme and of a substrate for the enzyme, formation of the reaction product of these at temperatures above the maximum desired temperature producing a visual indication, for example by reaction of the reaction product to give a colour or by a loss of colour in the starting materials. The enzyme substrate &c. may be contained in a transparent capsule of plastics or glass or it may be placed on an adhesive tape backing and covered with a transparent protective layer, a piece being torn off a roll of the treated tape for attachment to the food product. Examples relate to test devices comprising carbamide, Nessler's reagent and urease, prepared by mixing ground frozen components and unit packaging in transparent plastics; filtration paper impregnated, with urease solution and dried, then impregnated with a buffered solution containing carbamide glutathione and bromcresol purple and sealed while wet between glass slides; a transparent capillary tube filled with white of egg which is then coagulated by boiling, the tube being placed in acidified pepsin solution. There is also reference to use of starch iodine and amylase; ethyl alcohol, NADP and Fehlings' solution.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE347169A SE346162B (en) | 1969-03-13 | 1969-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297195A true GB1297195A (en) | 1972-11-22 |
Family
ID=20262199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297195D Expired GB1297195A (en) | 1969-03-13 | 1970-03-12 |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS5133432B1 (en) |
AT (1) | AT307215B (en) |
AU (1) | AU1253770A (en) |
BE (1) | BE747231A (en) |
BR (1) | BR7017407D0 (en) |
CH (1) | CH542444A (en) |
DE (1) | DE2010938A1 (en) |
FI (1) | FI51743C (en) |
FR (1) | FR2038030A5 (en) |
GB (1) | GB1297195A (en) |
NL (1) | NL7003570A (en) |
SE (1) | SE346162B (en) |
SU (1) | SU400123A3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8323430B2 (en) | 2005-10-21 | 2012-12-04 | Bizerba Gmbh & Co. Kg | Apparatus and a method for the provision of activated indicators for product marking and a product marking |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5280647U (en) * | 1975-12-12 | 1977-06-16 | ||
DE19802448B4 (en) * | 1998-01-23 | 2005-09-29 | Kleiböhmer, Guido | Procedure for checking the perishable state of fruit juice and fruit juice drinks |
CN109706067B (en) * | 2019-01-20 | 2022-01-28 | 上海海洋大学 | Extrusion formula papain type time temperature indicator |
-
1969
- 1969-03-13 SE SE347169A patent/SE346162B/xx unknown
-
1970
- 1970-03-07 DE DE19702010938 patent/DE2010938A1/en active Pending
- 1970-03-12 FR FR7008958A patent/FR2038030A5/fr not_active Expired
- 1970-03-12 AT AT233770A patent/AT307215B/en not_active IP Right Cessation
- 1970-03-12 JP JP2051070A patent/JPS5133432B1/ja active Pending
- 1970-03-12 AU AU12537/70A patent/AU1253770A/en not_active Expired
- 1970-03-12 BR BR21740770A patent/BR7017407D0/en unknown
- 1970-03-12 FI FI66770A patent/FI51743C/en active
- 1970-03-12 GB GB1297195D patent/GB1297195A/en not_active Expired
- 1970-03-12 CH CH364970A patent/CH542444A/en not_active IP Right Cessation
- 1970-03-12 BE BE747231D patent/BE747231A/en unknown
- 1970-03-12 NL NL7003570A patent/NL7003570A/xx unknown
- 1970-03-13 SU SU1412762A patent/SU400123A3/ru active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8323430B2 (en) | 2005-10-21 | 2012-12-04 | Bizerba Gmbh & Co. Kg | Apparatus and a method for the provision of activated indicators for product marking and a product marking |
Also Published As
Publication number | Publication date |
---|---|
FR2038030A5 (en) | 1970-12-31 |
BE747231A (en) | 1970-08-17 |
CH542444A (en) | 1973-09-30 |
AT307215B (en) | 1973-05-10 |
NL7003570A (en) | 1970-09-15 |
AU1253770A (en) | 1971-09-16 |
SU400123A3 (en) | 1973-10-03 |
JPS5133432B1 (en) | 1976-09-20 |
FI51743C (en) | 1977-03-10 |
FI51743B (en) | 1976-11-30 |
SE346162B (en) | 1972-06-26 |
BR7017407D0 (en) | 1973-04-24 |
DE2010938A1 (en) | 1970-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |