Development of active chitosan films incorporating potassium sorbate or vanillin to extend the shelf life of butter cake

2014 ◽  
Vol 50 (2) ◽  
pp. 323-330 ◽  
Author(s):  
Jurmkwan Sangsuwan ◽  
Nithiya Rattanapanone ◽  
Israpong Pongsirikul
Keyword(s):  
Shelf Life ◽  
Potassium Sorbate ◽  
Chitosan Films

Effects of Storage Temperature and Preservative Treatment on Shelf Life of the Pond-Raised Freshwater Fish, Silver Perch (Bidyanus bidyanus)

2001 ◽  
Vol 64 (10) ◽  
pp. 1584-1591 ◽  
Author(s):  
A. GELMAN ◽  
L. GLATMAN ◽  
V. DRABKIN ◽  
S. HARPAZ
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Storage Temperature ◽  
Storage Period ◽  
Potassium Sorbate ◽  
Test Results ◽  
Bacterial Composition ◽  
Fish Flesh ◽  
Microbiological Characteristics ◽  
Initial Load

Sensory and microbiological characteristics of pond-raised freshwater silver perch (Bidyanus bidyanus) fish, during cold storage over a period of 25 days were evaluated. Whole fish (averaging 400 g each) were stored in cold storage rooms at either 0 to 2°C, 5°C, or 5°C + potassium sorbate as a preservative. The organoleptic and hypoxanthine test results show that the treatment of potassium sorbate can slow the process of spoilage by about 5 days. Yet, the most important factor affecting the shelf life of these fish is the storage temperature. Keeping the fish at 0 to 2°C can prolong the storage prior to spoilage by 10 days compared with those kept at 5°C. These results obtained through organoleptic tests are corroborated by both the chemical (hypoxanthine and total volatile basic nitrogen) and to some extent by the physical (cosmos) tests. The initial total bacteriological counts were 5 × 102 CFU/cm2 for fish surface and <102 CFU/g for fish flesh, and these counts rose continuously, reaching about 106 CFU/g (0 to 2°C) and 107 CFU/g (5°C) in flesh and 107 to 108 CFU/cm2 on the surface by the end of the storage period. The addition of potassium sorbate led to a smaller increase in bacterial numbers, especially during the first 15 days. Bacterial composition fluctuated during storage. The initial load on the fish surface was predominantly mesophilic and gram positive and consisted mostly (80%) of Micrococci, Bacillus, and Corynebacterium. During the next 10 days, these bacteria were practically replaced by gram-negative flora comprised mostly of Pseudomonas fluorescens that rapidly increased with storage time and accounted for 95% after 15 days.

Extension of Shelf Life of Whole and Peeled Shrimp with Organic Acid Salts and Bifidobacteria

1999 ◽  
Vol 62 (1) ◽  
pp. 51-56 ◽  
Author(s):  
MOSFFER M. AL-DAGAL ◽  
WAEL A. BAZARAA
Keyword(s):  
Organic Acid ◽  
Shelf Life ◽  
Generation Time ◽  
Sodium Acetate ◽  
East Coast ◽  
Sensory Characteristics ◽  
Potassium Sorbate ◽  
Lag Phase ◽  
Organic Acid Salts ◽  
Acid Salts

Microbiological and sensory characteristics of treated whole and peeled shrimp from the east coast of Saudi Arabia were evaluated. Shrimp samples were treated with organic acid salts with or without Bifidobacterium breve culture and stored in ice. Peeling alone extended the microbiological shelf life by 4 days. Treatment of whole shrimp with sodium acetate alone or potassium sorbate with bifidobacteria prolonged the microbiological shelf life by 3 days and increased the microbial generation time from 12.8 h (control) to 30.1 h or 31.4 h, respectively. The microbiological and sensory shelf life of peeled shrimp treated with sodium acetate was more than 17 days. Sodium acetate extended the microbial lag phase and lengthened the generation time (38.7 h compared to 15.8 h for the control). Micrococci and coryneforms were the predominant microorganisms in whole shrimp during storage. Treatment with sodium acetate maintained better sensory characteristics for peeled shrimp than potassium sorbate combined with bifidobacteria.

scholarly journals Effect of potassium sorbate and gamma irradiation on the shelf-life of Hilsa shad, Tenualosa ilisha (Hamilton, 1822) at low temperature

2018 ◽  
Vol 6 (2) ◽  
pp. 67-73
Author(s):  
Tasnoba Firoze Sheuty ◽  
Md Kamrujjaman ◽  
Mahfuza Islam ◽  
Md Afzal Hossain ◽  
Roksana Haque
Keyword(s):  
Low Temperature ◽  
Gamma Irradiation ◽  
Shelf Life ◽  
Potassium Sorbate ◽  
Organoleptic Evaluation ◽  
Fish Flesh ◽  
Increasing Trend ◽  
Tenualosa Ilisha

Shelf-life of potassium sorbate (2%) and gamma irradiation (2kGy) treated Hilsa shad (Tenualosa ilisha) were determined after storing at 0oC and 4oC for a period of upto 35 days. Organoleptic evaluation showed that control, potassium sorbate treated and irradiated samples remained acceptable upto 21, 28 and 35 days of storage periods respectively at 00 C. Whereas, the same samples remained acceptable upto 7, 14 and 21 days of storage respectively at 40 C. Tyrosine and pH of fish flesh increased with the increasing of storage periods in all samples but, this increasing trend was somewhat lower in irradiated sample compare to other samples. Microbial assessment showed the best results in case of irradiated sample and remained within the acceptable limit.Jahangirnagar University J. Biol. Sci. 6(2): 67-73, 2017 (December)

Evaluation of the Antimicrobial Potential of Alginate and Alginate/Chitosan Films Containing Potassium Sorbate and Natamycin

2012 ◽  
Vol 26 (8) ◽  
pp. 479-492 ◽  
Author(s):  
Mariana Altenhofen da Silva ◽  
Beatriz Thie Iamanaka ◽  
Marta Hiromi Taniwaki ◽  
Theo Guenter Kieckbusch
Keyword(s):  
Potassium Sorbate ◽  
Antimicrobial Potential ◽  
Chitosan Films

Use of Sorbates in Meat Products, Fresh Poultry and Poultry Products: A Review1

1982 ◽  
Vol 45 (4) ◽  
pp. 374-383 ◽  
Author(s):  
MICHAEL C. ROBACH ◽  
JOHN N. SOFOS
Keyword(s):  
Adverse Effects ◽  
Shelf Life ◽  
Sodium Nitrite ◽  
Antimicrobial Agents ◽  
Sorbic Acid ◽  
Meat Products ◽  
Potassium Sorbate ◽  
Processed Meat ◽  
Poultry Products ◽  
Wide Range

Extensive research conducted in recent years has examined the efficiency of both potassium sorbate and sorbic acid (sorbates) as antimicrobial agents in a wide range of processed meat, and fresh and processed poultry products. In addition to their action against pathogens, effects of sorbates on product shelf-life, sensory qualities, and nitrosamine formation have also been examined in laboratory, pilot plant and commercial scale studies. The use of sorbates in these products appears to extend several benefits to both producers and consumers. Extensive studies involving bacon have shown a major reduction in nitrosamine levels associated with inclusion of potassium sorbate and reduction of sodium nitrite in the curing brine. Simultaneously, the low sodium nitrite/potassium sorbate combinations have maintained or even improved antibotulinal activity in temperature-abused products. In addition, potassium sorbate or sorbic acid have delayed growth and toxin production by Clostridium botulinum in other products including cooked and cured red meat and poultry sausages. The compounds have also been shown to extend the shelf-life and delay growth of other pathogenic microorganisms in several products including bacon; cooked, cured meat sausages; cooked, cured or uncured poultry products; fresh poultry; and other meats, including dry cured and fermented products. Sensory evaluation studies have shown that sorbate levels recommended for use in these products (0.26%) do not have adverse effects on product quality characteristics. Allergic type symptoms attributed to experimental bacon from one study were not linked directly with either potassium sorbate or other formulation ingredients, and all available information does not indicate development of any adverse effects from use of sorbates at recommended levels. In summary, the results of studies conducted in meat products indicate that sorbates deserve consideration as potential alternatives to current formulations or processes involved in the manufacture of processed meat and fresh and processed poultry products.

EFFECT OF POTASSIUM SORBATE AND MODIFIED ATMOSPHERE PACKAGING ON THE SHELF-LIFE EXTENSION OF SEER FISH (SCOMBEROMORUS COMMERSON)STEAKS DURING ICED STORAGE

2010 ◽  
Vol 34 (2) ◽  
pp. 399-424 ◽  
Author(s):  
POULOSE YESUDHASON ◽  
TERALANDUR KRISHNASWAMY SRINIVASA GOPAL ◽  
CHANDRAGIRI NARAYANARAO RAVISHANKAR ◽  
K.V. LALITHA ◽  
ASHOK KUMAR
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Life Extension ◽  
Potassium Sorbate ◽  
Modified Atmosphere ◽  
Shelf Life Extension ◽  
Scomberomorus Commerson ◽  
Iced Storage ◽  
Seer Fish

scholarly journals Modeling of potassium sorbate diffusion through chitosan films

LWT ◽  
2010 ◽  
Vol 43 (4) ◽  
pp. 584-589 ◽  
Author(s):  
Cristiana M.P. Yoshida ◽  
Carlos Eduardo N. Bastos ◽  
Telma T. Franco
Keyword(s):  
Potassium Sorbate ◽  
Chitosan Films
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