The POs with degree of polymerization in the range of 2 to 20 were obtained and characterized according to Vera-Guzmán et al. (2017) . Briefly, commercial pectin (Danisco Mexicana) was dissolved in water (1:45) and adjusted to pH 5. Then, it was hydrolyzed with a pectinase from Aspergillus niger (Sigma, USA) at 23°C for 3 h, stopping the reaction by autoclaving. The solution was dried using a Yamato ADL311S spray dryer to obtain the powdered mixture of POs. The degree of polymerization was determined by anion exchange chromatography with an amperometric pulse detector (HPAEC-PAD) (Dionex, Sunnyvale, CA) and a PD-10 column. The S-abscisic acid (ABA; ProTone ® SG) was purchased from Valent BioSciences Corp. (USA) and used as a control growth regulator substance as demonstrated in previous studies on table grapes (Peppi et al., 2008; Yamamoto et al., 2015) .
Adl311s spray dryer
Manufactured by Yamato Scientific
Sourced in Japan
The ADL311S is a spray dryer designed for drying liquid samples. It uses a high-speed rotating atomizer to convert liquid samples into dry powder particles. The equipment features a stainless steel drying chamber and cyclone separator for efficient powder collection.
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Lab products found in correlation
2 protocols using adl311s spray dryer
1
Pectin Oligomer Characterization and ABA Study
2
Chitosan Microparticles for Propranolol Delivery
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The aqueous solution (acetic acid 1.0% w/v) containing chitosan at 0.5% (w/v) was prepared under magnetic stirring for 24 h and dried in an ADL311S spray dryer (Yamato Scientific Co., Tokyo, Japan) to obtain the blank microparticles. For the drug-loaded chitosan microparticles, the propranolol was dissolved with the copolymer at mass ratio drug-chitosan of 1:2. The drying conditions were previously established in previous studies [28 (link)]. The inlet temperature of 140 °C, outlet temperature of about 90 °C, air pressure of 0.1 MPa, air flow of 0.32 m3/min and a feed flow rate of 5 mL/min through a nozzle of 0.4 mm were used during the experiments.
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