scholarly journals Shelf life assessment of hot smoked African catfish stored under different storage conditions from Lake Kenyatta, north coast, Kenya

2019 ◽  
Vol 18 (1) ◽  
pp. 1
Author(s):  
Maurice O. Obiero ◽  
Cyprian O. Odoli ◽  
Peter O. Odote ◽  
Raymond K. Ruwa ◽  
Maurice O. Omega
Keyword(s):  
Shelf Life ◽  
Storage Conditions ◽  
Life Assessment ◽  
North Coast ◽  
African Catfish

scholarly journals Value addition of tilapia (Oreochromis niloticus): Preparation of fillet and shelf-life assessment

2021 ◽  
Vol 8 (2) ◽  
pp. 231-240
Author(s):  
Mukta Sarker ◽  
Md Mehedy Hasan ◽  
Umme Hani ◽  
Md Foysal Ahmad ◽  
Md Abu Sayeed ◽  
...  
Keyword(s):  
Shelf Life ◽  
Frozen Storage ◽  
Value Added ◽  
High Growth ◽  
Storage Conditions ◽  
High Growth Rate ◽  
International Standards ◽  
Life Assessment ◽  
Plate Count ◽  
Tilapia Fillets

Although tilapia is one of the most cultivated fish species in Bangladesh owing to its high growth rate, comparatively easy culture practices, higher survival rate and short culture period but low market preference marked it as a low-priced fish. Various approaches have been adopted to enhance consumer acceptability and ensure better use of tilapia, including the production of value-added products such as tilapia-prepared fillets, which attract increasing interest. Therefore, the current study was designed and carried out in order to prepare tilapia fillets and to estimate their shelf life at frozen (-18±20C) and refrigerated (4±10C) temperatures. Fillets were produced from tilapia collected from local fish markets of Sylhet city, Bangladesh with according to Good Manufacturing Practices (GMP) established by International Standards Organization (ISO) and packed in polyethylene bags. Proximate composition, total volatile base nitrogen (TVBN), peroxide value (PV), pH, total plate count (TPC) and sensory properties of fillets were analyzed to determine shelf-life. A portion of the fresh fillet sample was immediately analyzed and the remaining portions were preserved for up to 12 and 90 days at refrigerated and frozen storage temperatures, respectively. Results revealed that, at a definite interval of time, changes in the chemical, microbial and sensory attributes of tilapia fillets were found to be more pronounced in refrigerated storage conditions than fillets stored in frozen conditions. The shelf life of refrigerated and frozen tilapia fillet samples was 9 and at least 90 days, respectively, per the results of sensory, microbial and chemical evaluation. Res. Agric., Livest. Fish.8(2): 231-240, August 2021

scholarly journals Holistic Approach to the Uncertainty in Shelf Life Prediction of Frozen Foods at Dynamic Cold Chain Conditions

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 714 ◽  
Author(s):  
Maria Giannakourou ◽  
Petros Taoukis
Keyword(s):  
Shelf Life ◽  
Kinetic Parameters ◽  
Holistic Approach ◽  
Storage Conditions ◽  
Life Assessment ◽  
Cold Chain ◽  
Stochastic Algorithm ◽  
Real Distribution ◽  
Prediction Scheme ◽  
Calculated Parameter

Systematic kinetic modeling is required to predict frozen systems behavior in cold dynamic conditions. A one-step procedure, where all data are used simultaneously in a non-linear algorithm, is implemented to estimate the kinetic parameters of both primary and secondary models. Compared to the traditional two-step methodology, more precise estimates are obtained, and the calculated parameter uncertainty can be introduced in realistic shelf life predictions, as a tool for cold chain optimization. Additionally, significant variability of the real distribution/storage conditions is recorded, and must be also incorporated in a kinetic prediction scheme. The applicability of the approach is theoretically demonstrated in an analysis of data on frozen green peas Vitamin C content, for the calculation of joint confidence intervals of kinetic parameters. A stochastic algorithm is implemented, through a double Monte Carlo scheme incorporating the temperature variability during distribution, drawn from cold chain databases. Assuming a distribution scenario of 130 days in the cold chain, 93 ± 110 days remaining shelf life was predicted compared to 180 days assumed based on the use by date. Overall, through the theoretical case study investigated, the uncertainty of models’ parameters and cold chain dynamics were incorporated into shelf life assessment, leading to more realistic predictions.

scholarly journals Nutraceutical characterization and shelf life analysis of millet incorporated nutrition bars

2020 ◽  
Vol 11 (2) ◽  
pp. 2056-2062
Author(s):  
Kerenhappuch Susan Samuel ◽  
Nazni P.
Keyword(s):  
Shelf Life ◽  
Pearl Millet ◽  
Foxtail Millet ◽  
Value Added ◽  
Essential Amino Acids ◽  
Storage Conditions ◽  
Life Assessment ◽  
Food Sources ◽  
Plate Count ◽  
Meal Replacement

Recently, the nutraceutical sector of the food trade is unfolding, and designer foods such as nutrition bars have found their place in this competitive industry. The inclusion of underutilized food sources in the development of new value-added products is ingenious. Millets, the indigenous crop, are a good source of nutrients. The Nutri-cereal is still lacking commercial success and deserves recognition in the food-processing sector. In the current study, foxtail and pearl millet are used to develop foxtail millet meal replacement bar (FMRB) and pearl millet protein bar (PPB), respectively. Three variants of each type (25%, 27.5%, and 30% incorporation of millets) were developed to derive the nutritionally preferred variants. Estimation of macronutrients, essential amino acids, and vitamin content was done. The storage stability of the selected variants was evaluated for 42 days under accelerated conditions.  The peroxide value, moisture content, water activity, total plate count, and yeast & mold count was assessed. The result revealed, among the variants, 30% FMRB (V-3) and 25% PPB (V-4) are the nutritionally finest bars. The shelf-life testing pointed out that the protein bar deteriorates rapidly than the meal replacement bar.  The correlation between the nutrient composition and shelf-life assessment factors indicated the shelf-life parameters negatively correlate with carbohydrates present in the bars. However, fat and protein have a positive correlation with shelf-life parameters (r= 1.00, p<0.01).  Favorable storage conditions and appropriate packing material that is conducive to retain the stability of the product can extend the shelf-life. Millet nutrition bars would revolutionize the agriculture and food industry. Thus, increasing the consumption of millets.

scholarly journals Investigation of the Physical, Chemical and Microbiological Stability of Losartan Potassium 5 mg/mL Extemporaneous Oral Liquid Suspension

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 301
Author(s):  
Lisa Foley ◽  
Jennifer Toney ◽  
James W. Barlow ◽  
Maura O’Connor ◽  
Deirdre Fitzgerald-Hughes ◽  
...  
Keyword(s):  
Shelf Life ◽  
Storage Conditions ◽  
Losartan Potassium ◽  
Microbial Count ◽  
E Coli ◽  
Physical Chemical ◽  
Liquid Suspension ◽  
Oral Liquid ◽  
Microbiological Stability ◽  
Stability Data

Extemporaneous oral liquid preparations are commonly used when there is no commercially available dosage form for adjustable dosing. In most cases, there is a lack of stability data to allow for an accurately assigned shelf life and storage conditions to give greater confidence of product safety and efficacy over its shelf life. The aim of this study was to evaluate the physical, chemical and microbiological stability of an extemporaneous oral liquid suspension of losartan potassium, 5 mg/mL, used to treat paediatric hypertension in Our Lady’s Children’s Hospital Crumlin, Ireland. The losartan content of extemporaneous oral suspensions, prepared with and without addition of water, was measured by UV and confirmed by HPLC analysis. Suspensions were stored at 4 °C and room temperature (RT) and were monitored for changes in; pH, colour, odour, re-dispersibility, Total Aerobic Microbial Count, Total Yeast and Mould Count and absence of E. coli. Results showed that suspensions prepared by both methods, stored at 4 °C and RT, were physically and microbiologically stable over 28 days. Initial losartan content of all suspensions was lower than expected at 80–81% and did not change significantly over the 28 days. HPLC and NMR did not detect degradation of losartan in the samples. Suspensions prepared in water showed 100% losartan content. The reduced initial losartan content was confirmed by HPLC and was related to the acidic pH of the suspension vehicle. Physiochemical properties of the drug are important factors for consideration in the selection of suspension vehicle for extemporaneous compounding of oral suspensions as they can influence the quality, homogeneity and efficacy of these preparations.

Packaging of beef fillet with active chitosan film incorporated with ɛ-polylysine: An assessment of quality indices and shelf life assessment

Meat Science ◽  
2021 ◽  
pp. 108475
Author(s):  
Kazem Alirezalu ◽  
Samira Pirouzi ◽  
Milad Yaghoubi ◽  
Maryam Karimi-Dehkordi ◽  
Shima Jafarzadeh ◽  
...  
Keyword(s):  
Shelf Life ◽  
Chitosan Film ◽  
Life Assessment ◽  
Quality Indices

scholarly journals Assessment of chicken breast shelf life based on bench-top and portable NIR spectroscopy tools coupled with chemometrics

2020 ◽  
Author(s):  
Ilaria Lanza ◽  
Daniele Conficoni ◽  
Stefania Balzan ◽  
Marco Cullere ◽  
Luca Fasolato ◽  
...  
Keyword(s):  
Discriminant Analysis ◽  
Shelf Life ◽  
Meat Quality ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Life Assessment ◽  
Chicken Breast ◽  
Portable Devices ◽  
Physicochemical Processes ◽  
Insight Into

Abstract Near-infrared (NIR) spectroscopy is a rapid technique able to assess meat quality even if its capability to determine the shelf life of chicken fresh cuts is still debated, especially for portable devices. The aim of the study was to compare bench-top and portable NIR instruments in discriminating between four chicken breast refrigeration times (RT), coupled with multivariate classifier models. Ninety-six samples were analysed by both NIR tools at 2, 6, 10 and 14 days post-mortem. NIR data were subsequently submitted to partial least squares discriminant analysis (PLS-DA) and canonical discriminant analysis (CDA). The latter was preceded by double feature selection based on Boruta and Stepwise procedures. PLS-DA sorted moderate separation of RT theses, while shelf life assessment was more accurate on application of Stepwise-CDA. Bench-top tool had better performance than portable one, probably because it captured more informative spectral data as shown by the variable importance in projection (VIP) and restricted pool of Stepwise-CDA predictive scores (SPS). NIR tools coupled with a multivariate model provide deep insight into the physicochemical processes occurring during storage. Spectroscopy showed reliable effectiveness to recognise a 7-day shelf life threshold of breasts, suitable for routine at-line application for screening of meat quality.

scholarly journals Antimicrobial Edible Films and Coatings for Meat and Meat Products Preservation

2014 ◽  
Vol 2014 ◽  
pp. 1-18 ◽  
Author(s):  
Irais Sánchez-Ortega ◽  
Blanca E. García-Almendárez ◽  
Eva María Santos-López ◽  
Aldo Amaro-Reyes ◽  
J. Eleazar Barboza-Corona ◽  
...  
Keyword(s):  
Shelf Life ◽  
Meat Products ◽  
Barrier Properties ◽  
Storage Conditions ◽  
Edible Films ◽  
Animal Origin ◽  
Chemical Additives ◽  
Processed Meats ◽  
Physicochemical Changes ◽  
Preservation Technology

Animal origin foods are widely distributed and consumed around the world due to their high nutrients availability but may also provide a suitable environment for growth of pathogenic and spoilage microorganisms. Nowadays consumers demand high quality food with an extended shelf life without chemical additives. Edible films and coatings (EFC) added with natural antimicrobials are a promising preservation technology for raw and processed meats because they provide good barrier against spoilage and pathogenic microorganisms. This review gathers updated research reported over the last ten years related to antimicrobial EFC applied to meat and meat products. In addition, the films gas barrier properties contribute to extended shelf life because physicochemical changes, such as color, texture, and moisture, may be significantly minimized. The effectiveness showed by different types of antimicrobial EFC depends on meat source, polymer used, film barrier properties, target microorganism, antimicrobial substance properties, and storage conditions. The perspective of this technology includes tailoring of coating procedures to meet industry requirements and shelf life increase of meat and meat products to ensure quality and safety without changes in sensory characteristics.

Quality and shelf life assessment of a new beverage produced from water kefir grains and red pitaya

LWT ◽  
2021 ◽  
Vol 140 ◽  
pp. 110770
Author(s):  
Raíssa S. Bueno ◽  
Jéssica B. Ressutte ◽  
Natália N.Y. Hata ◽  
Fernanda C. Henrique-Bana ◽  
Karla B. Guergoletto ◽  
...  
Keyword(s):  
Shelf Life ◽  
Life Assessment ◽  
Kefir Grains ◽  
Water Kefir ◽  
Quality And Shelf Life

EVALUATION OF COATINGS FOR SHELF LIFE ENHANCEMENT AND QUALITY RETENTION IN BER (ZIZYPHUS MAURITIANA LAMK.)

2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Ankush Relhan ◽  
Manish Bakshi ◽  
Prerna Gupta ◽  
Vikas Kumar ◽  
Shailesh Kumar Singh ◽  
...  
Keyword(s):  
Shelf Life ◽  
Minimum Weight ◽  
Sugar Content ◽  
Storage Conditions ◽  
Petroleum Jelly ◽  
Total Sugars ◽  
Climacteric Fruit ◽  
Ambient Storage ◽  
Quality Retention ◽  
Life Enhancement

Ber, a climacteric fruit crop, is liable to spoilage during storage. This study aims to evaluate the effect of coatings on shelf life and quality retention in ber under ambient storage conditions. Coated and uncoated ber fruits were stored at ambient storage temperatures (±25ºC) for 10 days and accessed every 2 days for analysis. Ber fruits reported minimum weight loss (2.68g), PLW (14.35%) and TSS (9.52%) with the application of petroleum jelly coating. Minimum total sugars (8.98%), minimum reducing sugar content (3.96%), maximum non-reducing sugars (5.69%) and maximum antioxidant activity (63.83%) was recorded in fruits with petroleum jelly coating. This study highlights the importance of coating of fruits for enhanced shelf life and quality retention under ambient storage conditions.

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