Review of encapsulation methods suitable for microbial biological control agents

Vemmer, Marina; Patel, Anant

doi:10.1016/j.biocontrol.2013.09.003

Cited by 182 publications

(122 citation statements)

References 80 publications

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“…Regarding this, the literature supported these results (Xu et al 2013;Vemmer and Patel 2013). The reduced toxicity over the time seems to be connected with the reduced proliferation rate caused by proliferation resistance (Xu et al 2013) and the protection of embedded cells against biotic and abiotic factors resulting in an extended longevity (Vemmer and Patel 2013). The manual and automated 2D cell cultivation by the CompacT SelecT cell culture platform was compared.…”

Section: Discussionmentioning

confidence: 78%

3 dimensional cell cultures: a comparison between manually and automatically produced alginate beads

et al. 2015

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Cancer diseases are a common problem of the population caused by age and increased harmful environmental influences. Herein, new therapeutic strategies and compound screenings are necessary. The regular 2D cultivation has to be replaced by three dimensional cell culturing (3D) for better simulation of in vivo conditions. The 3D cultivation with alginate matrix is an appropriate method for encapsulate cells to form cancer constructs. The automated manufacturing of alginate beads might be an ultimate method for large-scaled manufacturing constructs similar to cancer tissue. The aim of this study was the integration of full automated systems for the production, cultivation and screening of 3D cell cultures. We compared the automated methods with the regular manual processes. Furthermore, we investigated the influence of antibiotics on these 3D cell culture systems. The alginate beads were formed by automated and manual procedures. The automated steps were processes by the Biomek Ò Cell Workstation (celisca, Rostock, Germany). The proliferation and toxicity were manually and automatically evaluated at day 14 and 35 of cultivation. The results visualized an accumulation and expansion of cell aggregates over the period of incubation. However, the proliferation and toxicity were faintly and partly significantly decreased on day 35 compared to day 14. The comparison of the manual and automated methods displayed similar results. We conclude that the manual production process could be replaced by the automation. Using automation, 3D cell cultures can be produced in industrial scale and improve the drug development and screening to treat serious illnesses like cancer.

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Section: Discussionmentioning

confidence: 78%

3 dimensional cell cultures: a comparison between manually and automatically produced alginate beads

et al. 2015

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“…When encapsulated, these compounds are protected against a number of factors, such as temperature, moisture, light, oxidation, undesirable reactions with other compounds and mechanical stress during handling, processing, and storage of the final product. This leads to a prolonged shelf life and maintenance of metabolic activity for long periods of time during storage, which maintains the biological and functional characteristics of essential oils [60][61][62].…”

Section: Approachesmentioning

confidence: 99%

“…The main advantages of the spray drying technique are the combination of particle formation and drying in a single step, the possibility of using a wide variety of encapsulating agents, potentially large-scale production, simple equipment, low operating costs, high quality capsules with good yield, quick solubility of the capsules, small size, high capsule stability, and continuous operation [61,64,73,76,77]. The disadvantages are variations in the particle size and shape distribution, high temperatures, and rapid drying rates that normally do not allow encapsulation of thermosensitive compounds [61,64,73,77].…”

Section: Spray Dryingmentioning

confidence: 99%

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β-Cyclodextrins as Encapsulating Agents of Essential Oils

Capelezzo¹,

Mohr²,

Dalcanton³

et al. 2018

Cyclodextrin - A Versatile Ingredient

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Many scientific studies have made advances in the ability to encapsulate natural extracts by cyclodextrins. These studies have addressed the physical and chemical conditions of the encapsulation reactions, employed several types of essential oils and characterized the microcapsules as to their ability to release encapsulated active principles. The essential oils studies with cyclodextrin encapsulation processes have been highly varied. However, the most studied are the essential oils with antimicrobial and antioxidant capacities. The essential antimicrobial and antioxidant oils are easily degraded. In the presence of oxygen, they are oxidized, and at low temperatures, they are volatilized and decomposed. Thus, cyclodextrins are coatings capable of protecting these essential oils from environmental conditions and agents capable of promoting oil degradation, in addition to controlling their release. In this chapter of the book, we review scientific papers that examine the encapsulation of antimicrobial essential oils and antioxidant essential oils with β-cyclodextrins.

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“…Encapsulation is important for maintaining the stability of microorganisms and for increasing the resistance of bacteria in the substrate. Among the many types of encapsulating materials, calcium and sodium alginate, as well as whey proteins and gums have been the most widely used (SCHOEBITZ et al, 2013;VEMMER;PATEL, 2013). Clay is also a good encapsulating agent with properties different from alginate, but maintaining the desired properties of an encapsulating agent.…”

Section: Introductionmentioning

confidence: 99%

Promoting fruit seedling growth by encapsulated microorganisms

et al. 2018

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-The use of microorganisms capable of promoting plant growth has been accepted as an alternative to reducing the use of chemical fertilizers. The aim of this study was to evaluate the inoculation of plant growth promoting microorganisms in seedlings of fruit species, verifying the interaction of the inoculums with encapsulating agents such as clay and alginate. , em esquema fatorial 3 (controle, alginato de sódio e argila) x 2 (presença e ausência de inóculo microbiano), com cinco repetições (uma muda por repetição). As mudas foram mantidas em 50% de iluminação, à temperatura média de 22,5 °C, durante noventa dias, sendo avaliados a altura e o diâmetro do colo das plantas, e a massa seca da parte aérea e das raízes. Microorganismos promotores de crescimento de plantas, independentemente do encapsulamento utilizado, promovem desenvolvimento superior de mudas de caimito e de lichia. Termos para indexação: Plantas frutíferas, desenvolvimento, encapsulamento, promotores de crescimento vegetal.

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Review of encapsulation methods suitable for microbial biological control agents

Cited by 182 publications

References 80 publications

3 dimensional cell cultures: a comparison between manually and automatically produced alginate beads

3 dimensional cell cultures: a comparison between manually and automatically produced alginate beads

β-Cyclodextrins as Encapsulating Agents of Essential Oils

Promoting fruit seedling growth by encapsulated microorganisms

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