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Tapasco-Alzate, Omar
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Engineering

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Evaluation of viability and survival of free and maltodextrin microencapsulated Bifidobacterium animalis subsp. animalis through spray-drying process Corpas-Iguarán, Eduardo Javid; Triviño-Valencia, Jessica; Tapasco-Alzate, Omar; Garcés-Gómez, Yeison Alberto
Communications in Science and Technology Vol 8 No 2 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.2.2023.1239

Abstract

Bifidobacterium animalis subsp. animalis is a microorganism integrated into the human intestinal microbiota and performs a probiotic function through mechanisms that promote the absorption of nutrients, the modulation of the immune system, and the production of lactic acid, among other aspects. Microencapsulation using maltodextrin promotes the protection of microorganisms against physical and chemical factors, improving viability over time. Bifidobacterium animalis subsp. animalis was microencapsulated through spray-drying using maltodextrin. Survival under pH conditions, bile salts, and temperature were evaluated as well as its viability during storage conditions. The viability of the encapsulated agent stored at 25 °C remained high and constant during the first three weeks. The results for free and microencapsulated thermal tolerance showed an important difference among survival percentages of each tested temperature, and microencapsulation showed a protective effect against temperatures like or lower than 55 °C. Regarding pH 2.5 exposure for 3h, there is a survival of 5.38% for free microorganisms in contrast to 11.87% for encapsulated, whereas in a pH 3.5 for 3h, the encapsulated agent showed a survival of 23%. The results obtained from encapsulated cells stressed with a 1g/L concentration of bile salts showed a survival of 19%, while free cells presented a total loss of viability when subjected for 3h at the same concentration. Microencapsulated Bifidobacterium animalis subsp. animalis demonstrated potential for its use incorporated into foods, but it is necessary to improve viability conditions during storage and survival under gastric stress conditions.
Drivers of teleworker productivity: A systematic review of the empirical evidence Tapasco-Alzate, Omar; Giraldo-García, Jaime; Corpas-Iguarán, Eduardo; Garcés-Gómez, Yeison Alberto
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1406

Abstract

This paper aims to identify the factors influencing teleworker productivity by reviewing empirical evidence found in the scientific literature on the topic. A systematic review was conducted to gather and evaluate primary literature sources, complemented by a bibliometric analysis of the volume, distribution, and trends in scientific production over the past 24 years. The effects found are heterogeneous, narrow in scope, and sometimes contradictory. Telework significantly impacts productivity, with its effects varying based on intensity, the nature of the tasks performed, and individual, social, and situational factors. This manuscript provides a comprehensive review of the factors influencing teleworker productivity, analyzing 318 research articles to identify the key determinants of productivity in remote work environments. It systematically categorizes these factors into individual, social, and situational dimensions, offering valuable insights for organizations and individuals adapting to the evolving landscape of telework.
Co-Authors Corpas-Iguarán, Eduardo Corpas-Iguarán, Eduardo Javid Garces-Gomez, Yeison Alberto Giraldo-García, Jaime Triviño-Valencia, Jessica