Effects of Different Drying Methods on Drying Characteristics and Quality of Glycyrrhiza uralensis (Licorice)

Zhu, Lichun; Li, Mengqing; Yang, Wenxin; Zhang, Junyi; Zhang, Qian; Wang, Huting

doi:10.3390/foods12081652

Cited by 13 publications

(6 citation statements)

References 12 publications

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“…To separate, obtain and identify the majority compounds, a sample of 530 g of fresh callus biomass from 15 to 35 days of culture was lyophilized [ 65 ], obtaining 23 g of dry biomass which was crushed until pulverized, then macerated with CH 2 Cl 2 following the procedure previously described, obtaining 3.3 g of extract (0.6% yield).…”

Section: Methodsmentioning

confidence: 99%

Phytochemical Profiles and Cytotoxic Activity of Bursera fagaroides (Kunth) Engl. Leaves and Its Callus Culture

Pérez-Mejía,

Villarreal,

Sánchez-Carranza

et al. 2024

Plants

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Bursera fagaroides, popularly used in México, possesses bioactive lignans. These compounds are low in the bark, and its extraction endangers the life of the trees. The aim of the present investigation was to search for alternative sources of cytotoxic compounds in B. fagaroides prepared as leaves and in vitro callus cultures. The friable callus of B. fagaroides was established using a combination of plant growth regulators: 4 mgL−1 of 2,4-dichlorophenoxyacetic acid (2,4-D), 1 mgL−1 Naphthaleneacetic Acid (NAA) and 1 mgL−1 Zeatin. The maximum cell growth was at day 28 with a specific growth rate of μ = 0.059 days−1 and duplication time td = 11.8 days. HPLC quantification of the dichloromethane callus biomass extract showed that Scopoletin, with a concentration of 10.7 µg g−1 dry weight, was the main compound inducible as a phytoalexin by the addition of high concentrations of 2,4-D, as well as by the absence of nutrients in the culture medium. In this same extract, the compounds γ-sitosterol and stigmasterol were also identified by GC-MS analysis. Open column chromatography was used to separate and identify yatein, acetyl podophyllotoxin and 7′,8′-dehydropodophyllotoxin in the leaves of the wild plant. Cytotoxic activity on four cancer cell lines was tested, with PC-3 prostate carcinoma (IC50 of 12.6 ± 4.6 µgmL−1) being the most sensitive to the wild-type plant extract and HeLa cervical carcinoma (IC50 of 72 ± 5 µgmL−1) being the most sensitive to the callus culture extract.

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Section: Methodsmentioning

confidence: 99%

Phytochemical Profiles and Cytotoxic Activity of Bursera fagaroides (Kunth) Engl. Leaves and Its Callus Culture

Pérez-Mejía,

Villarreal,

Sánchez-Carranza

et al. 2024

Plants

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“…Color brightness has been shown to have a significant influence on consumers’ desire to purchase agricultural products, and color is a key determinant of dry quality assessment [ 39 ]. The color contrast between the sea buckthorn dried with and without humidification is shown in Table 1 .…”

Section: Experimental Research and Analysismentioning

confidence: 99%

Design and Experiment of Combined Infrared and Hot-Air Dryer Based on Temperature and Humidity Control with Sea Buckthorn (Hippophae rhamnoides L.)

Geng

Zhu

et al. 2023

Foods

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A drying device based on infrared radiation heating technology combined with temperature and humidity process control technology was created to increase the drying effectiveness and quality of sea buckthorn. Based on the conventional k-turbulence model, the velocity field in the air distribution chamber was simulated using COMSOL 6.0 software. The airflow of the drying medium in the air distribution chamber was investigated, and the accuracy of the model was verified. Given that the inlet of each drying layer in the original model had a different velocity, the velocity flow field was improved by including a semi-cylindrical spoiler. The results showed that installation of the spoiler improved the homogeneity of the flow field for various air intakes, as the highest velocity deviation ratio dropped from 26.68% to 0.88%. We found that sea buckthorn dried more rapidly after being humidified, reducing the drying time by 7.18% and increasing the effective diffusion coefficient from 1.12 × 10−8 to 1.23 × 10−8 m2/s. The L*, rehydration ratio, and vitamin C retention rate were greater after drying with humidification. By presenting this hot-air drying model as a potential high-efficiency and high-quality preservation technology for sea buckthorn, we hope to advance the development of research in the sea buckthorn drying sector.

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“…This susceptibility significantly impacts the quality and safety of Chinese medicinal materials and their processed products ( 5 ). Currently, natural drying stands as the primary method for licorice ( 6 ), but it faces challenges due to a poor sanitary environment and susceptibility to insect and fly pollution. Moreover, the extended drying period, especially during rainy weather, often leads to widespread mold formation and a substantial loss of active ingredients in licorice.…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of heat pump with infrared drying for Glycyrrhiza uralensis (Licorice) processing

Zhu,

Xie,

et al. 2024

Front. Nutr.

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A new dryer, integrating infrared and heat pump drying technologies, was designed to enhance licorice processing standardization, aiming at improved drying efficiency and product quality. Numerical simulation using COMSOL software validated the air distribution model through prototype data comparison. To address uneven air distribution, a spoiler was strategically placed based on CFD simulation to optimize its size and position using the velocity deviation ratio and non-uniformity coefficient as indices. Post-optimization, the average velocity deviation ratio decreased from 0.5124 to 0.2565%, and the non-uniformity coefficient dropped from 0.5913 to 0.3152, achieving a more uniform flow field in the drying chamber. Testing the optimized dryer on licorice demonstrated significant improvements in flow field uniformity, reducing licorice drying time by 23.8%. Additionally, optimized drying enhanced licorice color (higher L* value) and increased retention rates of total phenol, total flavone, and vitamin C. This research holds substantial importance for advancing licorice primary processing, fostering efficiency, and improving product quality.

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Effects of Different Drying Methods on Drying Characteristics and Quality of Glycyrrhiza uralensis (Licorice)

Cited by 13 publications

References 12 publications

Phytochemical Profiles and Cytotoxic Activity of Bursera fagaroides (Kunth) Engl. Leaves and Its Callus Culture

Phytochemical Profiles and Cytotoxic Activity of Bursera fagaroides (Kunth) Engl. Leaves and Its Callus Culture

Design and Experiment of Combined Infrared and Hot-Air Dryer Based on Temperature and Humidity Control with Sea Buckthorn (Hippophae rhamnoides L.)

Design and optimization of heat pump with infrared drying for Glycyrrhiza uralensis (Licorice) processing

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