Ultrasound-assisted extraction and properties of polysaccharide from Ginkgo biloba leaves

Ultrasonics Sonochemistry, Год журнала: 2023, Номер 93, С. 106295 - 106295

Опубликована: Янв. 10, 2023

Response surface methodology (RSM) was used to optimize the ultrasound-assisted extraction conditions of Ginkgo biloba leaves polysaccharide (GBLP). The optimum for GBLP were obtained as liquid material ratio 30 mL/g, ultrasonic power 340 W, and time 50 min. Under these conditions, yield 5.37 %. Two chemically modified polysaccharides, CM-GBLP Ac-GBLP, by carboxymethylation acetylation GBLP. physicochemical properties three polysaccharides comparatively studied their in vitro antioxidant activities evaluated comprehensively. results showed that solubility significantly enhanced activity somewhat improved. This suggests are effective methods enhance properties, but exhibited some uncontrollability. At same time, has also shown high potential research application.

Язык: Английский

---

Ultrasound-assisted enzyme extraction and properties of Shatian pomelo peel polysaccharide

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

---

Ultrasound-assisted extraction and analysis of maidenhairtree polysaccharides

Ultrasonics Sonochemistry, Год журнала: 2023, Номер 95, С. 106395 - 106395

Опубликована: Апрель 1, 2023

The maidenhairtree polysaccharides (MTPs) have important application prospects. So, the extraction, purification, structure, derivatization and biological activities of from leaves, fruits, testae were disscussed. Polysaccharides extracted by collaborative extraction methods such as ultrasound-assisted microwave-assisted extraction. had higher content efficiency. structural characteristics structure-activity relationship studied in order to provide theoretical basis technical support for further development utilization polysaccharides.

Язык: Английский

---

Ultrasound-assisted extraction and characteristics of maize polysaccharides from different sites

Ultrasonics Sonochemistry, Год журнала: 2023, Номер 95, С. 106416 - 106416

Опубликована: Апрель 20, 2023

Antitumor, antioxidant, hypoglycemic, and immunomodulatory properties are all exhibited by maize polysaccharides. With the increasing sophistication of polysaccharide extraction methods, enzymatic method is no longer limited to a single enzyme extract polysaccharides, more often used in combination with ultrasound or microwave, different enzymes. Ultrasound has good cell wall-breaking effect, making it easier dislodge lignin hemicellulose from cellulose surface husk. The "water alcohol precipitation" simplest but most resource- time-consuming process. However, "ultrasound-assisted extraction" "microwave-assisted methods not only compensate for shortcoming, also increase rate. Herein, preparation, structural analysis, activities polysaccharides were analyzed discussed.

Язык: Английский

---

Recent advances in the biological activities of microbial exopolysaccharides

World Journal of Microbiology and Biotechnology, Год журнала: 2023, Номер 39(8)

Опубликована: Май 31, 2023

Язык: Английский

---

Ultrasound-assisted extraction, analysis and antioxidant activity of polysaccharide from the rinds of Garcinia mangostana L.

Ultrasonics Sonochemistry, Год журнала: 2023, Номер 97, С. 106474 - 106474

Опубликована: Июнь 10, 2023

According to response surface methodology (RSM), the extraction conditions of ultrasound-assisted polysaccharide from rinds Garcinia mangostana L. (GMRP) were optimized and determined. The optimal obtained through optimization were: liquid material ratio was 40 mL/g, ultrasonic power 288 W time 65 min. average rate GMRP 14.73%. Ac - by acetylation GMRP, antioxidant activities two polysaccharides compared in vitro. results indicated that capacity after significantly improved with GMRP. In conclusion, chemical modification is an effective measure improve its properties a certain extent. Meanwhile, it implies has great research value potential.

Язык: Английский

---

Dendrobium as a new natural source of bioactive for the prevention and treatment of digestive tract diseases: A comprehensive review with future perspectives

Phytomedicine, Год журнала: 2023, Номер 114, С. 154784 - 154784

Опубликована: Март 22, 2023

Язык: Английский

---

Extraction, structure characterization and biological activity of polysaccharide from coconut peel

Chemical and Biological Technologies in Agriculture, Год журнала: 2023, Номер 10(1)

Опубликована: Фев. 20, 2023

Abstract Taking coconut peel as raw material, the extraction process of polysaccharide (CPP) was optimized by boiling water extraction. The characterized UV, IR, SEM, 1D NMR and 2D spectra. At same time, molecular weight monosaccharide component were analyzed gel chromatography ion chromatography, respectively. Antioxidant activity its derivatives in vitro evaluated scavenging ABTS DPPH radicals O 2 −· , anti HepG2 proliferation also carried out. results showed that 1.20 × 10 5 Da, which mainly composed arabinose (Ara), galactose (Gal), glucose (Glu), xylose (Xyl) galacturonic acid (Gal-A). main chain structure polysaccharides detected spectrum → 4)-α-D-Gl cp (1 . In antioxidant test had a certain effect on free radical With increase concentration, ability gradually increased. addition, significant antiproliferative against cells vitro. Graphical

Язык: Английский

---

Preparation and analysis of polysaccharide from Solanum tuberdsm

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

---

Extraction, Physicochemical Properties, Functional Activities and Applications of Inulin Polysaccharide: a Review

Plant Foods for Human Nutrition, Год журнала: 2023, Номер 78(2), С. 243 - 252

Опубликована: Апрель 25, 2023

Язык: Английский

---