International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142654 - 142654
Опубликована: Март 1, 2025
Язык: Английский
Ultrasonics Sonochemistry, Год журнала: 2023, Номер 98, С. 106507 - 106507
Опубликована: Июнь 28, 2023
In this study, Shatian pomelo peel was used as the raw material for extracting polysaccharides using hot water extraction (HW) and ultrasonic-assisted enzyme (UVE) methods, respectively. The optimal parameters extractingShatian (StPP) ultrasound-assisted enzymatic method were determined response surface methodology (RSM). conditions of StPP follows: ultrasound power 350 W, time 50 min, digestion compound addition 1.5%, temperature 55 °C. yield found to be 30.1310% under these conditions. Comparing physicochemical properties antioxidant activity extracted different it observed that resulted in higher yield, sugar content glucuronic acid compared traditional extraction. Additionally, by showed better activity. These results suggest is an effective enhance natural polysaccharides.
Язык: Английский
Процитировано
67
Ultrasonics Sonochemistry, Год журнала: 2024, Номер 108, С. 106948 - 106948
Опубликована: Июнь 12, 2024
In this study, the process conditions, physicochemical properties, structural composition and activity of polysaccharides isolated from leechee peel (LPP) by ultrasound-assisted extraction (UAE) with enzyme alkali solution (ASE) were compared. The results showed that total sugar content LPP extracted UAE accounted for 75.65 %, which was significantly higher than solution. optimum conditions as follows: temperature 68.78 ℃, ultrasonic enzymolysis time 39.68 min, pectinase dosage 4.03 solid–liquid ratio 1:30 g/mL, power 360 W. antioxidant activities structure polysaccharide prepared under different It found UAE-LPP an α-type containing 15.83 % uronic acid. Moreover, strong in anti-lipid peroxidation reducing ability. Ultrasound-assisted enzymatic method is effective means to improve natural plant polysaccharides, has advantages short time-consuming, simple easy operation, can greatly utilization rate lay a theoretical scientific basis development LPP.
Язык: Английский
Процитировано
35
Ultrasonics Sonochemistry, Год журнала: 2024, Номер 109, С. 107010 - 107010
Опубликована: Июль 31, 2024
Purple mangosteen scarfskin polysaccharide has many important physiological functions, but its preparation method, structure, and function need further exploration. A was obtained from by ultrasonic-assisted extraction purified. On this basis, structure physicochemical properties were investigated. The Congo red experiment used to determine whether it a triple helix conformation. of purple analyzed infrared spectroscopy nuclear magnetic analysis. antioxidant activities the above three polysaccharides studied related experiments. It found that monosaccharide composition mainly contained large amount arabinose, small rhamnoose very galacturonic acid, core main chain composed 1,4-α-arabinose. did not have spatial configuration. After acetylation polysaccharide, acetylated derivative with degree substitution 0.33 obtained. they had certain scavenging inhibiting effects on hydroxyl radicals lipid peroxidation, their concentration polysaccharides. Meanwhile, activity significantly enhanced after modified treatment acetylation, which indicated chemical modification could effectively improve some polysaccharide. studies provided reference value for research development
Язык: Английский
Процитировано
27
Food Chemistry X, Год журнала: 2025, Номер 26, С. 102265 - 102265
Опубликована: Фев. 1, 2025
This study employed a sophisticated approach consisting of ultrasound-assisted enzyme treatment to extract polysaccharides from sea buckthorn (SBP). The SBP extraction parameters were optimized, the following optimal identified: solid-liquid ratio 1:32 g/mL, ultrasound duration 26 min, temperature 52 °C, and composite concentration 6000 U/100 mL, maximum yield was 24.07 ± 0.15 %. separation purification resulted in isolation three fractions (SBPR-1, SBPR-2, SBPR-3). composition structural characteristics SBPRs identified. Furthermore, exhibited characteristic absorption peaks polysaccharides. Notably, surface microstructures showed significant variations. Moreover, all demonstrated commendable thermal stability vitro antioxidant activity. serves as reference for development application natural antioxidants provides theoretical foundation environmentally friendly effective SBP.
Язык: Английский
Процитировано
2
Ultrasonics Sonochemistry, Год журнала: 2023, Номер 98, С. 106520 - 106520
Опубликована: Июль 8, 2023
The crude Solanum tuberdsm polysaccharides (STP) were extracted with hot water. In the process of extraction, proteins, pigments, small molecules and salts in mixture removed by Sevage reagent, diatomite distilled water dialysis, respectively. addition, conditions protein removal response surface methodology (RSM) optimized, optimum method established as follows: ultrasound power 350 W, time 20 min, deproteinization twice, volume ratio polysaccharide solution to reagent 1:1 (mL/mL). Under these conditions, rate was 93.14%.
Язык: Английский
Процитировано
27
Ultrasonics Sonochemistry, Год журнала: 2023, Номер 99, С. 106571 - 106571
Опубликована: Сен. 1, 2023
Response surface methodology was selected to explore the ultrasonic-assisted cellulase extraction conditions of Garcinia mangostana rind polysaccharides (GMRPs), and optimum values each condition were as follows: ratio raw material liquid 1:50 g/mL, ultrasonic time 40 min, enzyme concentration 4 %, power 179 W. Based on above conditions, average rate GMRPs 15.56 %. modified by carboxymethylation, relationship between amount chloroacetic acid substitution degree carboxymethylated derivative compared. results single factor experiment, it shown that significantly affected products. The research provides some valuable theoretical references for preparation its carboxymethylation
Язык: Английский
Процитировано
23
Deleted Journal, Год журнала: 2024, Номер 1(1), С. 100004 - 100004
Опубликована: Янв. 30, 2024
Natural products have attracted wide attention in the cosmetics market due to their safety and high efficiency. As a highly active substance nature, natural polysaccharides been reported recent years various cosmetic activities such as moisturizing, whitening, anti-aging repairing skin, are becoming hot research topic industry. At present, mechanism of polysaccharide exerting activity has widely studied, but relationship between polysaccharide's chemical structure not effectively analyzed, which leads limitation development. In this review, skin repair was introduced. The potential summarized by analyzing influence physical properties polysaccharides, extraction method, molecular weight, monosaccharide composition, functional group structural modification, etc., laid foundation for analysis improved its value.
Язык: Английский
Процитировано
15
BMC Complementary Medicine and Therapies, Год журнала: 2024, Номер 24(1)
Опубликована: Июль 25, 2024
Abstract Background Polysaccharide from Garcinia mangostana rind has many biological activities and deserves further research. Methods The antioxidant properties of UAEE-GMRP, UAEE-GMRP-1 A, CM-30, Ac-30 were evaluated through two different activity experimental systems. Results four polysaccharides had a better scavenging effect on hydroxyl radicals, while their inhibitory lipid peroxidation was relatively weak. However, overall, the showed certain degree potential application in experiments mentioned above, especially chemically modified rind, which effectively improved activity. This also indicates that chemical modification is method to improve polysaccharide In addition, these exploration experiments, carboxymethylated stronger compared other three polysaccharides. Conclusion carboxymethylation may have great for application.
Язык: Английский
Процитировано
14
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129613 - 129613
Опубликована: Янв. 20, 2024
Язык: Английский
Процитировано
11
Microchemical Journal, Год журнала: 2024, Номер 202, С. 110799 - 110799
Опубликована: Май 17, 2024
Язык: Английский
Процитировано
10