Effects of Radurization and Refrigerated Storage on Quality and Shelf-Life of Freshwater Prawns, Macrobrachium rosenbergii1

1986 ◽  
Vol 49 (2) ◽  
pp. 142-145 ◽  
Author(s):  
S. ANGEL ◽  
B. J. JUVEN ◽  
Z. G. WEINBERG ◽  
P. LINDNER ◽  
E. EISENBERG
Keyword(s):  
Shelf Life ◽  
Macrobrachium Rosenbergii ◽  
Storage Period ◽  
Refrigerated Storage ◽  
Bacterial Counts ◽  
Spoilage Bacteria ◽  
Sensory Changes ◽  
Quality And Shelf Life

The effects of radurization on bacteriological, chemical, physical and sensory changes were studied in iced-stored freshwater prawns of the species Macrobrachium rosenbergii. At both 145 and 230 krad, counts of potential spoilage bacteria were reduced. Irradiation at 230 krad resulted in increased TVBN values. No significant differences in texture (mushiness) were observed between irradiated and nonirradiated samples throughout the storage period. Atypical streptobacteria (D = 59 krad) were the predominant organisms isolated from irradiated prawns after 4 weeks of refrigerated storage. No connection was found between development of mushiness and total or proteolytic bacterial counts.

The Effect of Sodium Caseinate Coating Incorporated withZataria moltifloraEssential Oil on the Quality and Shelf Life of Rainbow Trout During Refrigerated Storage

2016 ◽  
Vol 25 (8) ◽  
pp. 1311-1322 ◽  
Author(s):  
Marjan Zargar ◽  
Sakineh Yeganeh ◽  
Seyed Hadi Razavi ◽  
Seyed Mahdi Ojagh
Keyword(s):  
Rainbow Trout ◽  
Shelf Life ◽  
Sodium Caseinate ◽  
Refrigerated Storage ◽  
Quality And Shelf Life

Hygienic Quality and Shelf Life of a Moroccan Cooked (Kosher) Sausage

1995 ◽  
Vol 58 (2) ◽  
pp. 182-185 ◽  
Author(s):  
AHMED DAOUDI ◽  
FRANK A. STOLLE ◽  
ABDELHAMID BELEMLIH ◽  
HENRI R. ZAMBOU ◽  
HARTMUT G. EISGRUBER
Keyword(s):  
Ambient Temperature ◽  
Shelf Life ◽  
Water Activity ◽  
Total Volatile ◽  
Total Volatile Basic Nitrogen ◽  
Basic Nitrogen ◽  
Sensory Changes ◽  
Quality And Shelf Life ◽  
Microbial Status

Sensory, physicochemical and microbiological changes in Moroccan cooked kosher sausages stored at 6°C and 25°C were monitored over 35 days. Kosher sausages were very prone to changes in microbial status, as a result of high pH and water activity-values (aw-values) after processing. After 3 days of storage at 25°C and 1 week at 6°C the microbial colonies increased distinctively. Sensory changes were only detectable after the seventh day at 25°C. At 6°C, these sausages kept their sensorial characteristics. Levels of total volatile basic nitrogen were lower in the kosher sausages at 6°C than in those kept at 25°C. Changes at 25°C affected the quality of kosher sausage and limited the shelf life. From these results it can be concluded that storage at 25°C (ambient temperature) for 3 days or at 6°C (chilling) for 7 days without sensory changes is possible.

Effects of chitosan, aqueous extract of ginger, onion and garlic on quality and shelf life of stewed-pork during refrigerated storage

2013 ◽  
Vol 141 (3) ◽  
pp. 1655-1660 ◽  
Author(s):  
Yumin Cao ◽  
Weigang Gu ◽  
Jinjie Zhang ◽  
Yin Chu ◽  
Xingqian Ye ◽  
...  
Keyword(s):  
Shelf Life ◽  
Aqueous Extract ◽  
Refrigerated Storage ◽  
Quality And Shelf Life

scholarly journals Effects of different soil amendments and age of transplant on the post-harvest quality and shelf life of sweet pepper (Capsicum annuum) fruits

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Isaac Addo ◽  
Kwadwo Gyasi Santo ◽  
Abdul Aziz Khalid ◽  
Emmanuel Ackah
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Block Design ◽  
Poultry Manure ◽  
Storage Period ◽  
Sweet Pepper ◽  
Fruit Weight ◽  
Post Harvest ◽  
Significant Difference ◽  
Quality And Shelf Life

Abstract Background Two separate experiments were conducted in the minor season from September to November, 2019 and major season from March to May, 2020 to determining the type of soil amendment and transplanting age that can best improve the post-harvest quality and shelf life of sweet pepper fruits at Benso oil palm plantation of Adum Banso Estate in the Mpohor District of the Western Region of Ghana. The experiments were conducted as a 4 × 2 factorial, arranged in a Randomized Complete Block Design. Four fertilizer treatments including no fertilizer (control), 10 tons/ha of poultry manure, 300 kg/ha of NPK 15-15-15 and 5 t/ha of poultry manure + 150 kg/ha of NPK 15-15-15 and two ages of transplants including 6-week-old seedlings and 7-week-old seedlings were applied during the cultivation periods and were later evaluated of their effects on the post-harvest quality and shelf life of harvested fruits after a two-weeks storage period. Data collected on weight loss, shrinkage, decayed fruits and shelf life of harvested fruits were subjected to analysis of variance using the Genstat Statistical package. The least significant difference criterion was used to separate treatment means at 5% probability. Results Post-harvest qualities of sweet pepper fruits were not significantly influenced by age of transplant throughout the study. Fertilizer application generally increased percentage fruit weight loss, fruit shrinkage, fruit decay and reduced shelf life of sweet pepper fruits in the major season. Sole application of poultry manure mostly enhanced post-harvest quality of sweet pepper fruits in the minor rainy season, but fruit shelf life was improved if no fertilizer was applied. Application of a combination of poultry manure and NPK 15-15-15 to 6-week-old transplants gave relatively low fruit weight loss and shrinkage values. Generally, fruit quality and shelf life were enhanced in 6-week-old transplants treated with no fertilizer. Conclusions The use of poultry manure alone should be encouraged to probably increase yield while improving the quality and shelf life of harvested sweet pepper fruits. Transplanting of 6-week-old seedlings is also encouraged for quality harvested fruits and extended shelf life.

scholarly journals Effect of Chitosan-Ascorbic Acid Coatings on the Refrigerated Storage Stability of Fresh-Cut Apples

Coatings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 503 ◽  
Author(s):  
Kübra Sultan Özdemir ◽  
Vural Gökmen
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Storage Stability ◽  
Storage Period ◽  
Edible Films ◽  
Refrigerated Storage ◽  
Water Control ◽  
Antimicrobial Substances ◽  
Fresh Cut ◽  
Acid Coating

Using natural antimicrobial substances in edible films becomes crucial to extend the shelf-life of fresh-cut fruits due to the consumers’ preferences. In this study chitosan and ascorbic acid based film was used to improve the shelf-life of fresh-cut apples. Fresh-cut apple cubes were dipped in water (control), ascorbic acid (1%) or mixtures of chitosan–ascorbic acid in different ratios (1%:1%, 2%:2% or 1%:5%) for 5 min. After draining, fresh-cut apples were packed in sterile polypropylene jars and stored at 5 °C for 14 days. The treatment with chitosan and ascorbic acid suppressed browning, retained flesh firmness and maintained phenolic compounds throughout the storage period. Moreover, the treatment with chitosan–ascorbic acid significantly retarded the microbial growth during storage. Those findings suggested that the best performance was acquired in 1% chitosan and 5% ascorbic acid coating. That coating could be practical and useful to prolonging the chemical and microbial shelf lives of fresh-cut apples during refrigerated storage.

Radurization of Prime Beef Cuts

1981 ◽  
Vol 44 (9) ◽  
pp. 677-681 ◽  
Author(s):  
J. G. NIEMAND ◽  
H. J. VANDERLINDE ◽  
W. H. HOLZAPFEL
Keyword(s):  
Lactic Acid ◽  
Shelf Life ◽  
Bacterial Population ◽  
Storage Period ◽  
Considerable Change ◽  
Life Extension ◽  
Lactobacillus Species ◽  
Shelf Life Extension ◽  
Quality And Shelf Life ◽  
Control Samples

The bacteriology, organoleptic quality and shelf-life extension of radurized beef cuts were investigated. Application of doses of 2 kGy to vacuum-packed meat caused a considerable change in the bacterial population by elimination of the pseudomonads, Enterobacteriaceae and enterococci. The LLP group of lactic acid bacteria was relatively resistant to radiation, and after radurization was mostly comprised of Lactobacillus species. The lactobacilli multiplied rapidly on the meat during storage at 4 C, and reached relatively high numbers toward the end of the storage period. Odor and appearance evaluations were carried out at regular intervals and were used together with organoleptic testing and bacteriological analyses to determine the shelf-life extension of radurized beef cuts. A doubling in the shelf-life of samples irradiated to 2 kGy was attained when compared to non-irradiated (control) samples.

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