Preparation and Analysis of Pueraria lobata Polysaccharides

ACS Biomaterials Science & Engineering, Год журнала: 2023, Номер 9(5), С. 2329 - 2334

Опубликована: Апрель 27, 2023

Pueraria lobata polysaccharides (PLPs) were obtained by a hot water extraction method. Starting from the single factor experiment, was optimized response surface methodology, and following optimal parameters obtained: temperature 84 °C, liquid–solid ratio 11 mL/g, time 73 min, rate of 8.59%. The Sevag method used to remove protein soluble in H2O2 pigment; then PLPs precipitated with three times anhydrous ethanol, salts other small molecules removed dialysis, finally refined freeze-drying.

Язык: Английский

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Self-Healing, Freeze-Resistant, and Sustainable Aloe Polysaccharide-Based Hydrogels for Multifunctional Sensing

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(11), С. 4464 - 4475

Опубликована: Март 7, 2024

Although designing wearable sensors by using sustainable hydrogels has been gaining widespread attention, the fabrication of inexpensive biobased hydrogel with fast self-healing and antibacterial abilities remains challenging. In this study, green were prepared from aloe vera polysaccharides (AP), poly(vinyl alcohol), sodium alginate (SA). Their mechanical, electrical, biodegradable, characteristics investigated. The an AP/SA ratio 9:2 demonstrated excellent tensile properties elongation at break, toughness, electrical conductivity 1477.3%, 1.19 MJ/m3, 12.67 × 10–2 S/m, respectively. remained electrically conductive −20 °C. During strain sensing, it exhibited stability sensitivity (gauge factor: 9.2), a wide range (up to 1400%), high efficiency 96.1% over 4 min. It was also able detect low strains (1%). These enabled assembly into monitor physiological signals generated large movements body joints, small facial expression changes, talking, drinking. An assembled humidity sensor detected relative levels 45–98% monitored human respiration patterns in different exercise states. Consequently, is potential functional material for sustainable, flexible, electronics.

Язык: Английский

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Enzyme-Assisted Ultrasonic Extraction and Antioxidant Activities of Polysaccharides from Schizochytrium limacinum Meal

Foods, Год журнала: 2024, Номер 13(6), С. 880 - 880

Опубликована: Март 14, 2024

Enzyme-assisted ultrasonic extraction (EAUE) was utilized and optimized for extracting polysaccharides from Schizochytrium limacinum meal (SLMPs) via the response surface methodology. The optimal EAUE conditions were determined as follows: enzyme concentration at 5.18%, temperature 53 °C, duration of 40 min, power 60 W, a liquid-to-material ratio 34 mL/g, achieving polysaccharide yield 11.86 ± 0.61%. purified component, SLMP1-1, isolated using DEAE Sepharose Fast Flow Sephadex G-100 columns, exhibited potent antioxidant activity. with molecular weight 25.5 kDa, comprises glucose, mannose, arabinose, galactose in molar 16.39:14.75:1:693.03. 1H NMR analysis revealed α configuration SLMP1-1. Antioxidant assessments, including DPPH, ABTS, ferric ion reduction assays, detected inhibitory values 21.82–82.98%, 38.21–98.46%, 3.30–20.30% 0.2–1.0 mg/mL. This confirmed effective capacity which is notably enhanced post oral gastric digestion. findings suggest that extracted hold significant promise natural antioxidants.

Язык: Английский

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Ultrasound-assisted enzymatic extraction of jujube (Ziziphus jujuba Mill.) polysaccharides: Extraction efficiency, antioxidant activity, and structure features

Ultrasonics Sonochemistry, Год журнала: 2024, Номер 111, С. 107088 - 107088

Опубликована: Сен. 28, 2024

Язык: Английский

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Preparation, Structural Analysis and Antioxidant Activity of Polysaccharides and Their Derivatives from Pueraria lobata

Chemistry & Biodiversity, Год журнала: 2023, Номер 20(4)

Опубликована: Март 10, 2023

Pueraria lobata polysaccharides (PLPs) were obtained by hot water extraction using as raw material. Structural analysis revealed that PLPs may have a repetitive backbone units of →4) -α-D-Glcp (1→4-α-D-Glcp (1→. Phosphorylated (P-PLPs), carboxymethylated (CM-PLPs) and acetylated (Ac-PLPs) chemical modifications PLPs, respectively. The physicochemical properties antioxidant activities these four studied in comparison. In particular, the clearance rate P-PLPs exceeded 80 %, was expected to achieve same effect Vc . results showed effects different on activity varied greatly.

Язык: Английский

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Chemical modification and structural analysis of polysaccharide from Solanum tuberdsm

Journal of Molecular Structure, Год журнала: 2023, Номер 1285, С. 135480 - 135480

Опубликована: Март 30, 2023

Язык: Английский

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Extraction, purification and antioxidant activity of polysaccharides from different parts of Hibiscus manihot L.

Journal of Molecular Structure, Год журнала: 2023, Номер 1295, С. 136598 - 136598

Опубликована: Сен. 6, 2023

Язык: Английский

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The Inhibitory Activity of Natural Products to Xanthine Oxidase

Chemistry & Biodiversity, Год журнала: 2023, Номер 20(5)

Опубликована: Апрель 18, 2023

The natural products have a new chemical structure and biological active diversity, so they are favored by scientific researchers. Gout is high incidence high-risk disease, the current treatments not satisfactory. Xanthine oxidase (XO) key enzyme responsible for development progression of various metabolic oxidative stress-related diseases. Excessive activity XO leads to elevated serum urate levels, which in turn hyperuricemia. This review mainly introduces recent progress research on anti-gout that could provide treatment methods gout information discovery drugs.

Язык: Английский

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Extraction, purification and antioxidant activity of Juglans regia shell polysaccharide

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

Опубликована: Авг. 10, 2023

Abstract In recent years, the biological activity of plant polysaccharides has attracted more and attention. Juglans regia was one four-dry fruits in world, it very high value nutrition health care high. To better develop nutritional effects J. shell polysaccharide, used as raw material to prepare polysaccharide by water extraction alcohol precipitation method. The molecular weight, monosaccharide components, structure characteristics antioxidant activities its derivatives were studied. Then, a series meaningful data information for study obtained. weight 9.45 × 10 4 Da after separation purification DEAE-52 Sephadex G-100. contained rhamnose, arabinose, galactose, glucose, xylose galacturonic acid, molar ratio each component 6.7%: 16.5%: 28.3%: 11.2%: 12.5%: 24.8%. contains β-glucoside bond, may be → 4)- α -D-Gal p -(1 β -D-GalAp-(1 -D-Xyl glycosidic bond). activity, showed good activities, especially phosphorylated polysaccharide. important practical significance improving quality efficiency industry chain. Graphical

Язык: Английский

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Platinum nanoflowers stabilized with aloe polysaccharides for detection of organophosphorus pesticides in food

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 253, С. 126552 - 126552

Опубликована: Сен. 3, 2023

Язык: Английский

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