Physical-chemical and Microbiological Stability During Refrigerated Storage of Microwave-pasteurized Guava Nectar

2014 ◽  
Vol 3 (0) ◽  
pp. 43 ◽  
Author(s):  
C. Salazar-González ◽  
M. F. San Martín-González ◽  
F. T. Vergara-Balderas ◽  
A. López-Malo ◽  
M. E. Sosa-Morales
Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 301
Author(s):  
Lisa Foley ◽  
Jennifer Toney ◽  
James W. Barlow ◽  
Maura O’Connor ◽  
Deirdre Fitzgerald-Hughes ◽  
...  

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.


2009 ◽  
Vol 33 ◽  
pp. 264-280 ◽  
Author(s):  
TATIANA BEATRIS TRIBESS ◽  
MARIA AUXILIADORA DE BRITO RODAS ◽  
JUSSARA CARVALHO DE MOURA DELLA TORRE ◽  
CARMEN CECILIA TADINI

2019 ◽  
Vol 7 (12) ◽  
pp. 3969-3978 ◽  
Author(s):  
Seyede Salimeh Rashidaie Abandansarie ◽  
Peiman Ariaii ◽  
Mehdi Charmchian Langerodi

Author(s):  
C Cortell ◽  
MA Martinez ◽  
C Molina ◽  
AC Cercos ◽  
M Climente ◽  
...  

2019 ◽  
Vol 5 ◽  
pp. 64-69
Author(s):  
Sergiy Bochkarev ◽  
Anna Belinska ◽  
Oleksandra Varankina ◽  
Valeriya Ananieva ◽  
Igor Petik ◽  
...  

The aim of the research is to determine the microbiological stability of a protein-fat mixture of flax and sesame seeds that allows to correct its storage life. A protein-fat mixture has a high content of irreplaceable amino acids ВСАА and polyunsaturated fatty acids of w-3group, so it may be positioned as a component of nutrition for athletes. Flax and sesame seeds, cultivated in Ukraine, were used as research materials. The product was created, based on comminuted flax and sesame seeds in ratio 1:1. There were determined organoleptic (outlook, taste, smell, color) and physical-chemical (mass share of moisture, ash, protein, fat, acidic, peroxide, anisidine number) parameters of the product. There was determined the microbiological stability of the protein-fat mixture of the increased food value for athletes nutrition after 6 months. It has been proved, that as opposite to the control sample, the protein-fat mixture of the developed composition manifests its microbiological stability by the following parameters: content of mesophilic aerobic and facultative anaerobic microorganisms, molds, yeast, bacteria of the colon bacillus group and pathogenic microorganisms. The control sample that is comminuted flax seeds doesn’t manifest at the end of the storage term any correspondence of microbiological parameters by the content of mesophilic aerobic and facultative anaerobic microorganisms, molds, and bacteria of the colon bacillus group. This regularity is explained by the presence of lignans, sesamol and sesamoline, with preservative properties in the developed product. The obtained data may be used for reasoning recipes of products, based on the protein-fat mixture and correction of the food supplements ratio in them.


2019 ◽  
Vol 49 (2) ◽  
Author(s):  
Fúlvio Viegas Santos Teixeira de Melo ◽  
Elisabete Maria Macedo Viegas ◽  
Giuliana Parisi ◽  
Adriana Cristina Bordignon ◽  
Manoel Adriano da Cruz Neto ◽  
...  

ABSTRACT: Fish quality is conditioned by several factors, among them desensitization methods applied for fish managing and slaughtering. This research used electric shock at different intensities as a desensitization method for cobia (Rachycentron canadum) slaughtering and evaluated its effects over fish quality during refrigerated storage. The experiment was carried out by numbing the fish with electroshock at the intensities of 100, 150 and 200 Volts, and keeping them in refrigerated storage for 21 days. On the cobia, obtained from a commercial fish farm the following physical, chemical and sensorial characteristics as quality variables were evaluated: dielectric properties, rigor index, pH, texture, color, sensorial evaluation of freshness, ATP and degradation catabolites. The experimental design was a 6×3 factorial (6 times of analysis and 3 electroshock intensities). Significant differences (P<0.05) were observed for the analyzed variables, as a consequence of desensitization treatments and of storage time within each treatment. However, the number of variables affected by the treatment was smaller than the number of variables significantly affected by the storage time, and the interaction time×treatment was highly significant within the results reported. The best results for the parameters tested were obtained when the treatment at 150 volts intensity with the majority of analyzed variables held significant differences (P<0.05) among treatments. It was also concluded that cobia can be conserved in refrigerated storage within seven days after slaughtering using electro-narcosis as a method of desensitization.


2020 ◽  
Vol 9 (3) ◽  
pp. 71
Author(s):  
Ariane M. Kluczkovski ◽  
Augusto Kluczkovski-Junior ◽  
Arine V. Lopes ◽  
Samir C. B. Pinto ◽  
Diana C. Monteiro

A study was carried out to elaborate and monitor the shelf life of a pineapple jam with ingredients using, as &ldquo;gelatinizing agent&rdquo;, the pectin extracted from passion fruit residues from a rural community of Amazonas State, Brazil. The product was always maintained at a temperature of 25 &deg;C and studied for 4 months, with the results showing physical-chemical and microbiological stability. We concluded that passion fruit residue can be used in pineapple jam production while still meeting legal standards for commercialization, reducing environmental waste, and being an alternative source of income in rural communities.


2020 ◽  
Vol 5 (1) ◽  
pp. 103-106
Author(s):  
Ashani Uthpala Bulathgama ◽  
G. D. M. Gunasekara ◽  
I. Wickramasinghe ◽  
M. A. D. Somendrika

Bubble tea is a trending food product around the globe and capture a high demand in the high-end market in Asian region as well. This product contains a chewy bubble in enhancing the palatability and the acceptability of the final bubble tea product, which is made with cassava starch. Cassava is an important high caloric tropical food crop, yet has a limited utilization due to its perishability and high cyanide content. Industrial processing of cassava into several food products is one of the most preferred solution for this and thus, tapioca pearl production is also one of the major food application of cassava starch. So the main objective of this study to develop a standardized and much preferred method of tapioca pearl production, and develop a tapioca pearl to be incorporated in bubble tea with higher sensory acceptance, and lower cost. A standard procedure was developed after several trials, and considering the economic benefit, cassava flour incorporated pearls were also tried. The made pearls were subjected to sensory evaluation, proximate composition and cyanide content analysis, as well as texture profile analysis, and finally, the microbiological stability of the product was also checked under refrigerated storage conditions. According to the obtained results, the final product was sensory accepted (p<0.05) over the commercially available product and had a laboratory proven shelf life of 30 days under refrigerated storage conditions.


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