Microencapsulación de componentes bioactivos

Reyna, Erika Nava; Álvarez, Georgina Michelena; Iliná, Anna; Hernández, José Luis Martínez

doi:10.33064/iycuaa2015663571

Cited by 4 publications

(3 citation statements)

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“…It can protect the encapsulated material and control its release or facilitate the use of liquid products. There are three types of encapsulation processes: (i) physical processes using mechanical techniques (e.g., pulverization and extrusion), (ii) physicochemical processes based on the regulation and control of factors such as pH, temperature, solubility, and precipitation of polymers, as well as the control of state changes in oligomers, and (iii) chemical processes based on the in situ formulation of the coating material by polycondensation, radical polymerization, or anionic polymerization [89].…”

Section: Effect Of Phytostimulant On R Sativus and B Rapa Subsp Pekin...mentioning

confidence: 99%

Pretreated Eucalyptus globulus and Pinus radiata Barks: Potential Substrates to Improve Seed Germination for a Sustainable Horticulture

Escobar‐Avello

Ferrer

Bravo-Arrepol

et al. 2023

Forests

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Commercial forest plantations in Chile are dominated by pine (Pinus radiata) and eucalyptus (Eucalyptus globulus). Tree bark is the main by-product of the forestry industry and has low value, but great potential for use as an agricultural substrate. However, the direct use of bark fibers may cause plant phytotoxicity due to the presence of polyphenolic and other compounds. This study aims to evaluate the physicochemical properties of E. globulus and P. radiata bark after water extraction treatments. The phytotoxicity of the resulting extracted bark alone and that mixed with commercial substrates (coconut fiber, moss, peat, and composted pine) at different ratios (25 to 75 wt%) were assessed using the Munoo-Liisa vitality index (MLVI) test. For all treatments, the seed germination and growth of radish (Raphanus sativus) and Chinese cabbage (Brassica rapa) species were evaluated and compared to a commercial growing medium (peat) as a control. The optimal mixture for seed growth was determined to be 75% extracted E. globulus bark fiber and 25% commercial substrates such as peat (P), coconut fiber (C), moss (M), and composted pine (CP), as indicated by the MLVI and germination results. Two phytostimulant products, chitosan and alginate-encapsulated fulvic acid, were added to the best substrate mixture, with the purpose of improving their performance. Encapsulated fulvic acid at 0.1% w/v was effective in promoting plant growth, while chitosan at all of the concentrations studied was effective only for mixture 75E-25CP. The mixture of E. globulus fiber and commercial substrates, containing a high proportion of water-extracted fiber (75%), shows the potential to be used in the growth of horticultural crops and in the plant nursery industry.

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Section: Effect Of Phytostimulant On R Sativus and B Rapa Subsp Pekin...mentioning

confidence: 99%

Pretreated Eucalyptus globulus and Pinus radiata Barks: Potential Substrates to Improve Seed Germination for a Sustainable Horticulture

Escobar‐Avello

Ferrer

Bravo-Arrepol

et al. 2023

Forests

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“…The encapsulation of phytostimulants can improve their delivery and efficacy [ 60 ]. This technology allows for the production of customized micro- and nanoparticles made of a coating material containing a primary active ingredient [ 77 ]. For this reason, in this research, we used fulvic acid as a phytostimulant encapsulated in an alginate matrix.…”

Section: Resultsmentioning

confidence: 99%

Extracted Eucalyptus globulus Bark Fiber as a Potential Substrate for Pinus radiata and Quillaja saponaria Germination

Ferrer-Villasmil,

Fuentealba,

Reyes-Contreras

et al. 2024

Plants

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This study aimed to explore alternative substrates for growing forest species using eucalyptus bark. It evaluated the potential of extracted Eucalyptus globulus fiber bark as a substitute for commercial growing media such as coconut fiber, moss, peat, and compost pine. We determined the physicochemical parameters of the growing media, the germination rate, and the mean fresh and dry weights of seedlings. We used the Munoo-Liisa Vitality Index (MLVI) test to evaluate the phytotoxicity of the bark alone and when mixed with commercial substrates. Generally, the best mixture for seed growth was 75% extracted eucalyptus bark fiber and 25% commercial substrates. In particular, the 75E-25P (peat) mixture is a promising substitute for seedling growth of Pinus radiata, achieving up to 3-times higher MLVI than the control peat alone. For Quillaja saponaria, the best growth substrate was the 50E-50C (coconut fiber) mixture, which had the most significant MLVI values (127%). We added chitosan and alginate-encapsulated fulvic acid phytostimulants to improve the performance of the substrate mixtures. The fulvic acid, encapsulated or not, significantly improved MLVI values in Q. saponaria species and P. radiata in concentrations between 0.05 and 0.1% w/v. This study suggests that mixtures with higher levels of extracted fiber are suitable for growing forest species, thus promoting the application of circular economy principles in forestry.

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“…El microencapsulado es una micropartícula conformada por una cubierta polimérica porosa, semi permeable, esférica, delgada y fuerte y una sustancia activa (Martín et al, 2009;Parra, 201;Nava et al, 2015;Sandoval-Peraza et al, 2016).…”

Section: Introductionunclassified

Efectos Del Alimento Vivo Y Microencapsulado en El Crecimiento Y Sobrevivencia De Postlarvas De Colossoma Macropomum Cuvier, 1816 (Characiformes, Serrasalmidae)

Alvarez-Verde,

Llontop-Vélez,

Candela-Diaz

2021

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En acuicultura la sobrevivencia de las postlarvas, etapa crítica en los peces, está influenciada por el alimento. La gamitana, Colossoma macropomum Cuvier, 1816, es una especie de gran importancia económica en nuestro país. En el presente trabajo se evaluó el crecimiento de postlarvas de C. macropomum, sometidos a tres tratamientos de alimentación: T , alimento vivo compuesto por nauplios 1 de Artemia; T , alimentación con nauplios de Artemia más alimento experimental microencapsulado y T , 2 3 solamente alimento experimental microencapsulado. El alimento se proporcionó “ad libitum” y se evaluaron el crecimiento de las postlarvas, la tasa de crecimiento específico, la ganancia de peso y la tasa de sobrevivencia. El alimento microencapsulado se preparó mediante la técnica de gelificación, secado y molido. El experimento tuvo una duración de 30 días. Se utilizaron 450 postlarvas de gamitana con tamaño promedio inicial de 0,02 ± 0,012 cm distribuidos en nueve acuarios. El diseño experimental fue completamente al azar con tres tratamientos y tres repeticiones por tratamiento. Los resultados presentaron diferencias significativas entre los tratamientos para la ganancia de peso (g), la tasa de crecimiento específico (%) y supervivencia (%). Para T : 1,25 g; 13,93% y 70,66%; para T : 1,38 g; 14,23 1 2 % y 78%; para T3: 0,83 g; 13,48% y 56,66%, respectivamente. Los parámetros de calidad de agua estuvieron dentro de los rangos adecuados a la especie. Se concluye que los mejores rendimientos se obtuvieron con el tratamiento T , nauplios de Artemia más alimento microencapsulado.

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Microencapsulación de componentes bioactivos

Cited by 4 publications

References 0 publications

Pretreated Eucalyptus globulus and Pinus radiata Barks: Potential Substrates to Improve Seed Germination for a Sustainable Horticulture

Pretreated Eucalyptus globulus and Pinus radiata Barks: Potential Substrates to Improve Seed Germination for a Sustainable Horticulture

Extracted Eucalyptus globulus Bark Fiber as a Potential Substrate for Pinus radiata and Quillaja saponaria Germination

Efectos Del Alimento Vivo Y Microencapsulado en El Crecimiento Y Sobrevivencia De Postlarvas De Colossoma Macropomum Cuvier, 1816 (Characiformes, Serrasalmidae)

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