Adl 311s

Manufactured by Yamato Scientific

Sourced in Japan, United States

The ADL 311S is a laboratory oven designed for heating and drying applications. It features a digital temperature control system and a stainless steel interior. The oven's capacity and technical specifications are not provided.

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Lab products found in correlation

8 protocols using adl 311s

Microencapsulation of Green Coffee Extract

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The GCE was microencapsulated using polydextrose (PD) and inulin (IN) as encapsulating agents, both at a concentration of 30% and previously diluted with distilled water. Predetermined amounts of GCE and encapsulating agents were mixed at a 1:2 volume ratio and homogenized in a magnetic stirrer for 10 min. The total soluble solids content (°Brix) was determined using a digital refractometer and the samples were subjected to the spray drying (SD) and freeze-drying (FD) processes.
The SD was performed using a mini spray dryer ADL 311S (Yamato Scientific Co., Tokyo, Japan) with a maximum compressed air pressure of 0.1 MPa, feed flow rate of 2 mL/min, drying airflow rate of 0.21 m³/min, and inlet air temperature of 150 °C. For FD, the samples were first frozen at −20 °C for 48 h and subsequently freeze-dried in an L101 benchtop freeze-dryer (Liotop, São Carlos, Brazil) at −50 °C and approximately 200 μmHg for five days. The microencapsulated extracts were stored in polyethylene-laminated containers at −80 °C until the moment of analysis.

do Carmo L.B., Benincá D.B., Grancieri M., Pereira L.V., Lima Filho T., Saraiva S.H., Silva P.I., Oliveira D.D, & Costa A.G. (2022). Green Coffee Extract Microencapsulated: Physicochemical Characteristics, Stability, Bioaccessibility, and Sensory Acceptability through Dairy Beverage Consumption. International Journal of Environmental Research and Public Health, 19(20), 13221.

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Isolation and Spray Drying of Plant Protein

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JSPI was prepared according to the method followed by [4] (link) with slight modification. The seeds flour was suspended in distilled water (1:10 w/v). The pH of the slurry was adjusted to 9.0 by using 1 M NaOH solution and kept in rest for one hour. The slurry was then centrifuged (at 12,600 g, for 15 min). The supernatant protein solution was separated and adjusted to pH 4.5 using 1 M HCl. The solution was then stirred for 30 min at 400 rpm and left undisturbed for cold precipitation overnight (4˚C). The supernatant was carefully siphoned off, and the obtained protein precipitate was collected by centrifugation at 2217 g for 15 min.
The accumulated protein was washed 3 -4 times with distilled water to eliminate all soluble components. The protein was re-suspended (10%, w/v) in distilled water and the pH was set to 7.0. The protein solution was then dried using a spray dryer (Yamato ADL-311S) to get dry protein powder. The input temperature was 160˚C, the output temperature was 60˚C, and the nozzle air pressure was 0.2 MPa. The spray dried powder was then stored at room temperature in a glass bottle.

Haque M.A., Akter F., Rahman H., & Baqui M.A. (2020). Jackfruit Seeds Protein Isolate by Spray Drying Method: The Functional and Physicochemical Characteristics. Food and Nutrition Sciences, 11(05), 355-374.

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Spray-Drying Microencapsulation of Probiotics

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To maintain cell viability, probiotics were subjected to spray-drying microencapsulation using a spray-dyer (ADL 311S, Yamato Scientific Co., Ltd., Santa Clara, CA, USA). An inoculum of each probiotic strain was prepared in MRS broth and incubated for 24 h at 35 °C. After incubation, the inoculated medium was transferred into 50 mL plastic tubes and centrifuged (10,000× g, 10 min). The pellet was recovered and resuspended with 30 mL of peptone water (0.1% peptone, 0.85% NaCl, pH 7), centrifuged (10,000× g, 10 min) and the supernatant was discarded. This procedure was repeated twice and resuspended in a final volume of 30 mL of peptone water. Before spray-dying, the suspended cells were added to 750 mL of microencapsulation mix (maltodextrin 10% w/v, sodium alginate 2% w/v). The microencapsulation conditions used in the spray-drier had an inlet temperature of 130 °C, outlet temperature 60 °C, blower = 7, pump = 1.5, and pressure 0.13 Pa. Microencapsulation yield was calculated as 24.21%. After spray-drying, probiotic viability was determined by homogenizing 0.1 g of microencapsulated powder with 9 mL of peptone water (1:9 dilution). Serial dilutions were prepared, and 100 µL of diluted samples were added into the MRS agar plates by duplicate and incubated for 24 h at 35 °C (Shel lab 1535, VWR, Randor, PA, USA).

Faccinetto-Beltrán P., Gómez-Fernández A.R., Orozco-Sánchez N.E., Pérez-Carrillo E., Marín-Obispo L.M., Hernández-Brenes C., Santacruz A, & Jacobo-Velázquez D.A. (2021). Physicochemical Properties and Sensory Acceptability of a Next-Generation Functional Chocolate Added with Omega-3 Polyunsaturated Fatty Acids and Probiotics. Foods, 10(2), 333.

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Composite Spray-Drying Production Protocol

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The production of composite involved different steps and followed an adapted methodology, according to Wu and collaborators [28 (link)] (Figure 1). First, a solution of chitosan 1% (w/v) in acetic acid 1% (v/v) was prepared by constant mechanical stirring for 12 h. Next, palygorskite 1% (w/v) in acetate buffer pH 4 was dispersed in an ultra-turrax homogenizer (T18, IKA, Wilmington, NC, USA) at 1000 rpm for 30 min. Finally, 200 mL of the chitosan solution was added to different volumes of the 1% (w/v) palygorskite suspension, and the pH was adjusted to 4 with pH 4 acetate buffer to obtain a final volume of 400 mL. As a result of the final sample composition, all formulations had the same ETB mass (equivalent to 20% (w/w) of the chitosan content). The composite suspensions were dried in a spray dryer (ADL311S, Yamato Scientific Co., Tokyo, Japan) equipped with a 0.4 mm nozzle, under a flow rate of 10 mL/min, at an inlet temperature of 150 °C, outlet temperature between 95–100 °C, and an atomization pressure of 0.1 atm. Table 1 represents the code adopted for each formulation, its respective composition, and yield.

Meirelles L.M., de Melo Barbosa R., de Almeida Júnior R.F., Machado P.R., Perioli L., Viseras C, & Raffin F.N. (2023). Biocomposite for Prolonged Release of Water-Soluble Drugs. Pharmaceutics, 15(6), 1722.

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Spray-Dried Nanoemulsion Microparticles

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Considering the particle size and PDI of the nanoemulsions produced, six systems were selected for the drying tests. The tests were carried out with two different drying aids: maltodextrin and L-leucine. The solution was prepared with a ratio of 1:4 v/v (nanoemulsion/adjuvant). Therefore, for the preparation of 100 mL of the solution to be subjected to spray drying, 75 mL of the solution with 20% (w/v) drying adjuvant were used when treated with maltodextrin, and 2% (w/v) when it was with L-leucine and 25 mL of the nanoemulsion. This mixture was subjected to magnetic stirring and dried in a spray-dryer atomizer (Yamato Scientific-model ADL311s, Nakatsu, Japan) using a 0.4 mm dosing nozzle, a blower ranging from 6.0–7.0, air atomization of 0.1 ppm, average flow of 2.0 mL/min and temperature controlled inlet (130–140 °C) and outlet (77–87 °C) for the evaluation of parameters such as yield and homogeneity of the collected powder. The solid microparticles called MP1 were produced from drying the NE1; MP2 and MP3 were produced from NE2 and NE3, respectively.

Almeida A.R., Morais W.A., Oliveira N.D., Silva W.C., Gomes A.P., Espindola L.S., Araujo M.O., Araujo R.M., Albernaz L.C., De Sousa D.P., Aragão C.F, & Ferreira L.S. (2023). Nanoemulsions and Solid Microparticles Containing Pentyl Cinnamate to Control Aedes aegypti. International Journal of Molecular Sciences, 24(15), 12141.

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Microencapsulation of Probiotic Bacteria

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Bacteria were propagated by inoculating an aliquot (100 μL) from a stock of Lactobacillus plantarum 299v (L. p299v) and a stock of Lactobacillus acidophilus La3 (DSMZ 17742) in 10 mL of MRS broth, which was incubated at 37 °C in a Shel lab 1535 incubator (VWR, Randor, PA, USA) for 16 h under aerobic conditions. Then, propagation was scaled-up to a final volume of 800 mL under the same incubation conditions. Bacteria cells were harvested by centrifugation (at 10,000× g, 25 °C for 15 min). Cell pellets were washed in peptone water (0.1% peptone, 0.85% NaCl, pH 7) and resuspended in a final volume of 30 mL in peptone water.
Suspended cells were added to 750 mL of microencapsulation mix (10% w/v maltodextrin, and w/v 2% food-grade alginate) and spray-dried (ADL 311S, Yamato Scientific Co., Ltd., Santa Clara, CA, USA) at 130 °C inlet, 60 °C outlet, and 0.13 MPa. The viability of probiotics was determined by homogenizing the powder with microencapsulated probiotics (0.1 g) or the chocolates with added probiotics (1 g), with 90 mL of peptone water preheated at 37 °C in a stomacher (IUL Instruments, Barcelona, Spain) for 90 s. Proper dilutions (10⁴, 10⁶, and 10⁸) of each replicate were plated twice on MRS agar and incubated at 37 °C for 48 h, aerobically.

Gómez-Fernández A.R., Faccinetto-Beltrán P., Orozco-Sánchez N.E., Pérez-Carrillo E., Marín-Obispo L.M., Hernández-Brenes C., Santacruz A, & Jacobo-Velázquez D.A. (2021). Sugar-Free Milk Chocolate as a Carrier of Omega-3 Polyunsaturated Fatty Acids and Probiotics: A Potential Functional Food for the Diabetic Population. Foods, 10(8), 1866.

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Spray-Dried Ternary Solid Dispersions

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The selected polymer and alkalizing agents were used to formulate different pH-modulated ASDs to identify the optimal formulation. A lab-scale spray dryer (ADL311S; Yamato Scientific, Tokyo, Japan) was used to prepare ternary SDs of the drug, polymer, and alkalizer. At 1 g of CC in 100 mL of methanol, the methanolic solution of CC was dispersed into 200 mL of deionized water containing different amounts of carrier and alkalizer (fixed at 1 g) with stirring to produce a clear homogenous solution (Table 1). The clear solutions were then transferred at a rate of 3.5 mL/min with a peristaltic pump through a nozzle with a 0.4-mm diameter. The air was heated to 120 °C in the drying chamber and the air escaping from the spray dryer was at 65–70 °C. The atomizing was maintained at 0.15 MPa. The average flow rate of drying air was adjusted at 0.13 m³/min by setting the blower knob at 5.5. In total, five SDs were prepared for further evaluation to select the optimized ternary solid dispersion.

Poudel S, & Kim D.W. (2021). Developing pH-Modulated Spray Dried Amorphous Solid Dispersion of Candesartan Cilexetil with Enhanced In Vitro and In Vivo Performance. Pharmaceutics, 13(4), 497.

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Spray-Dried Flavonoid-P188 Composite Particles

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Various combinations of flavonoid drugs with P188 (10/90, 30/70, 50/50, 70/30, 90/10, w/w) were dissolved in dichloromethane to achieve a total concentration of 5 wt%. The resulting solution was then introduced into a Yamato spray dryer (ADL 311S, Yamato Scientific Company, Ltd., Tokyo, Japan). This spray dryer operated with an inlet temperature of 55 °C, an outlet temperature of 32 °C, a solution feed rate of 4 mL/minute, and an atomizing N₂ pressure of 0.1 MPa. After the spray-drying process, the flavonoid drugs-P188-CSDs were subjected to vacuum drying for a minimum of 24 h and stored in a room-temperature desiccator.
The mixtures of flavonoid drugs and P188 were generated by sieving the two sample powders to guarantee mixing uniformity.

Huang H., Zhang Y., Liu Y., Guo Y, & Hu C. (2023). Influence of Intermolecular Interactions on Crystallite Size in Crystalline Solid Dispersions. Pharmaceutics, 15(10), 2493.

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