Ultrasound-Assisted Extraction of Inulin From Dandelion Leaves Application for Probiotics Spray Drying
DOI:
https://doi.org/10.54644/jte.2025.2016Tóm tắt
Dandelion leaves (Taraxacum officinale) are known for their high prebiotic inulin content. Ultrasound-assisted extraction (UAE) is considered one of the most efficient methods for improving extraction performance. This study focused on using an alternative ultrasound-assisted method to extract inulin from dandelion leaves. Additionally, the research explored the use of extracted inulin as a wall material in synbiotic spray drying with Lactobacillus acidophilus. Various combinations of hot water (70°C, 80°C, and 90°C) and ultrasonic power (30 W/g, 60 W/g, and 90 W/g) were tested for the extraction process. The material-to-water ratio was maintained at 1:10, with an extraction time of 20 minutes for all trials. The findings revealed that both water temperature and ultrasonic power had a significant impact on inulin concentration. The highest amount of extracted inulin (86.25 mg/g dw) was achieved with 60 W/g ultrasonic power at 80°C. UAE enhanced inulin extraction by 9.48% compared to traditional methods. The Lactobacillus acidophilus cells demonstrated satisfactory survival rates at high spray drying temperatures (inlet temperatures of 140°C and 180°C), indicating their heat resistance during spray drying. In conclusion, inulin extracted from dandelion leaves has promising potential as a wall material for spray-drying probiotics. However, further optimization of spray drying conditions is needed for efficient synbiotic production.
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