Patent US3899594A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3899594A Expired / Lapsed US ⏱️ 0.0 years remaining

Food preservation

Assignee: Dirigo Corp
•
Filing: 1974-03-29
•
Granted: 1975-08-12
•
Expires: 1994-03-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The storage life of food is extended and food which should be discarded is detected by adding to food a preservative composition containing an inoculum of Pediococcus cerevisiae or Lactobacillus viridescens and a combination of a sorbic acid salt and a propionic acid salt. The inoculum grows in the presence of the sorbic acid and propionic acid salts which inhibit undesirable food bacteria, and after growing to a certain point produces an undesirable flavor in the food causing the food to be discarded.

Inventors

  • 👤 John T R Nickerson
  • 👤 John R Darack

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:53
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/783; A23L; A23L29/00; A23L29/065

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 239 words
A METHOD FOR SAFELY EXTENDING THE STORAGE LIFE OF FOODS NORMALLY HIGHLY SUSCEPTIBLE TO COMMON FOOD-BRONE DISEASE AND COMMON SPOILAGE ORGANISMS SELECTED FROM THE GROUP OF FOODS CONSISTING OF CUSTARD FILLED FOODS, ECLAIRS, FISH FILLETS, POTATO SALAD, EGG SALAD, COOKED LOBSTER MEAT, COOKED PEELED SHRIMP, CHICKEN SALAD, SQUASH PIES, HAM SALAD, LOBSTER SALAD, SHRIMP SALAD, CRAB MEAT SALAD, AND TUNA SALAD, WHICH METHOD COMPRISES ADDING TO THE FOOD THE COMBINATION OF A COMPOSITION WHICH INHIBITS THE GROWTH OF ORGANISMS AND AN INOCULUM, AND PERMITTING THE INOCULUM TO GROW FOR A FINITE PERIOD OF TIME UNTIL IT CAUSE AN UNDESIRABLE FLAVOUR IN THE FOOD, THUS CAUSING THE FOOD TO BE DISCARDED, SAID COMPOUND COMPRISING AN ORGANIC ACID OR SALT THEREOF WHICH INHIBITS THE GROWTH OF COMMON FOOD-BRONE DISEASE AN SPOILAGE ORGANISMS IN THE TEMPERATURE RANGE OF APPROXIMATELY 40* TO 86*F., BUT ONLY SLIGHTLY INHIBITS THE GROWTH OF THE INOCULUM AT SUCH TEMPERATURES, THE INOCULUM BEING A NON-PATHOGENIC MEMBER OF THE LACTOBACTERIACEAE WHICH IS CHARACTERIZED AS GROWING IN FOOD IN THE TEMPERATURE RANGE OF APPROXIMATELY 40* TO 86*F, SAID INOCULUM BEING EITHER PEDIOCOCCUS CEREVISIAE OR LACTOBUCILLUS VIRIDESCENS AND SAID ORGANIC ACID BEING A MIXTURE OF SORBIC ACID COMPOUND BEING WITH PROPIONATE COMPOUND, SAID SORBIC ACID COMPOUND BEING EITHER SORBIC ACID, POTASSIUM SORBATE OR SODIUM SORABTE AND SAID PROPIONATE COMPOUND BEING EITHER SODIUM, CALCIUM OR POTASSIUM PROPIONATE, EACH SAID COMPOUND BEING PRESENT IN SAID FOOD AT A CONCENTRATION OF AT LEAST 0.01%.
Claim 2
Independent Claim 239 words
A METHOD FOR SAFELY EXTENDING THE STORAGE LIFE OF FOODS NORMALLY HIGHLY SUSCEPTIBLE TO COMMON FOOD-BRONE DISEASE AND COMMON SPOILAGE ORGANISMS SELECTED FROM THE GROUP OF FOODS CONSISTING OF CUSTARD FILLED FOODS, ECLAIRS, FISH FILLETS, POTATO SALAD, EGG SALAD, COOKED LOBSTER MEAT, COOKED PEELED SHRIMP, CHICKEN SALAD, SQUASH PIES, HAM SALAD, LOBSTER SALAD, SHRIMP SALAD, CRAB MEAT SALAD, AND TUNA SALAD, WHICH METHOD COMPRISES ADDING TO THE FOOD THE COMBINATION OF A COMPOSITION WHICH INHIBITS THE GROWTH OF ORGANISMS AND AN INOCULUM, AND PERMITTING THE INOCULUM TO GROW FOR A FINITE PERIOD OF TIME UNTIL IT CAUSE AN UNDESIRABLE FLAVOUR IN THE FOOD, THUS CAUSING THE FOOD TO BE DISCARDED, SAID COMPOUND COMPRISING AN ORGANIC ACID OR SALT THEREOF WHICH INHIBITS THE GROWTH OF COMMON FOOD-BRONE DISEASE AN SPOILAGE ORGANISMS IN THE TEMPERATURE RANGE OF APPROXIMATELY 40* TO 86*F., BUT ONLY SLIGHTLY INHIBITS THE GROWTH OF THE INOCULUM AT SUCH TEMPERATURES, THE INOCULUM BEING A NON-PATHOGENIC MEMBER OF THE LACTOBACTERIACEAE WHICH IS CHARACTERIZED AS GROWING IN FOOD IN THE TEMPERATURE RANGE OF APPROXIMATELY 40* TO 86*F, SAID INOCULUM BEING EITHER PEDIOCOCCUS CEREVISIAE OR LACTOBUCILLUS VIRIDESCENS AND SAID ORGANIC ACID BEING A MIXTURE OF SORBIC ACID COMPOUND BEING WITH PROPIONATE COMPOUND, SAID SORBIC ACID COMPOUND BEING EITHER SORBIC ACID, POTASSIUM SORBATE OR SODIUM SORABTE AND SAID PROPIONATE COMPOUND BEING EITHER SODIUM, CALCIUM OR POTASSIUM PROPIONATE, EACH SAID COMPOUND BEING PRESENT IN SAID FOOD AT A CONCENTRATION OF AT LEAST 0.01%.
Claim 3
Dependent Claim 11 words
The method of claim 1 wherein the inoculum is Pediococcus cerevisiae.
Claim 4
Dependent Claim 11 words
The method of claim 1 whrein the inoculum is Lactobacillus viridescens.

References Cited (Backward Citations)

US2225783A Cited
US3022176A Cited
US3323921A Cited
US3561977A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-11 1979-02-10 1979-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-11 1983-02-10 1983-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-11 1987-02-10 1987-08-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag