Physicochemical characterizations of polysaccharides from Angelica Sinensis Radix under different drying methods for various applications

Wang, Ying; Li, Xia; Zhao, Ping; Qu, Zhuo; Bai, De-Tao; Gao, Xiaoxiao; Zhao, Chengcheng; Chen, Jie; Gao, Wenyuan

doi:10.1016/j.ijbiomac.2018.10.035

Cited by 59 publications

(26 citation statements)

References 29 publications

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“…HD is cheap and easy to control because the postharvest plants are dried by continuous flowing hot air [ 10 ]. The plants after VD treatment can effectively reduce the structural changes because of the relatively low temperature and absence of oxygen [ 11 ]. MD has the advantages of fast drying, uniform sample energy transfer, and easy control of the drying process [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Structural and Biological Properties of Water Soluble Polysaccharides from Lotus Leaves: Effects of Drying Techniques

et al. 2021

Molecules

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In the present study, the influence of five drying techniques on the structural and biological properties of polysaccharides from lotus leaves (LLPs) was investigated. Results revealed that the yields, contents of basic chemical components, molecular weights, and molar ratios of compositional monosaccharides of LLPs varied by different drying technologies. Low molecular weight distributions were observed in polysaccharides obtained from lotus leaves by hot air drying (LLP-H), microwave drying (LLP-M), and radio frequency drying (LLP-RF), respectively. The high contents of bound polyphenolics were measured in LLP-H and LLP-M, as well as polysaccharides obtained from lotus leaves by vacuum drying (LLP-V). Furthermore, both Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectra of LLPs were similar, indicating that drying technologies did not change their basic chemical structures. Besides, all LLPs exhibited obvious biological properties, including in vitro antioxidant capacities, antiglycation activities, and inhibitory effects on α-glucosidase. Indeed, LLP-H exhibited higher 2,2-azidobisphenol (3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging ability (IC50 values, LLP-H, 0.176 ± 0.004 mg/mL; vitamin C, 0.043 ± 0.002 mg/mL) and 2,2-diphenyl-1-(2,4,6-trinitrate phenyl) hydrazine radical scavenging ability (IC50 values, LLP-H, 0.241 ± 0.007 mg/mL; butylated hydroxytoluene, 0.366 ± 0.010 mg/mL) than others, and LLP-M exerted stronger antiglycation (IC50 values, LLP-M, 1.023 ± 0.053 mg/mL; aminoguanidine, 1.744 ± 0.080 mg/mL) and inhibitory effects on α-glucosidase (IC50 values, LLP-M, 1.90 ± 0.02 μg/mL; acarbose, 724.98 ± 16.93 μg/mL) than others. These findings indicate that both hot air drying and microwave drying can be potential drying techniques for the pre-processing of lotus leaves for industrial applications.

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Section: Introductionmentioning

confidence: 99%

Structural and Biological Properties of Water Soluble Polysaccharides from Lotus Leaves: Effects of Drying Techniques

et al. 2021

Molecules

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“…For plant polysaccharides, however, a significant decrease of the molecular mass was observed already at lower temperatures by using spray drying with a rotary atomizer (inlet temperature 150°C and outlet temperature 78°C) or drying in an oven (12 h at 75°C) [46, 47]. For hot air drying performed at 50°C for 5 h, this was attributed to the rapid removal of bound water causing a breakdown of the polysaccharide structure [48].…”

Section: Resultsmentioning

confidence: 99%

Pilot scale isolation of exopolysaccharides from Streptococcus thermophilus DGCC7710: Impact of methodical details on macromolecular properties and technofunctionality

Nachtigall

Surber

Bulla

et al. 2020

Engineering in Life Sciences

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Exopolysaccharides (EPS) from Streptococcus thermophilus provide similar technofunctionality such as water binding, viscosity enhancing and emulsifying effects as commercial thickeners at a significant lower concentration. Despite their high technofunctional potential, hetero polysaccharides from lactic acid bacteria are still not commercially used in unfermented foods, as the small amount of synthesised EPS calls for a high isolation effort. This study aims to analyse the macromolecular properties of EPS and cell containing isolates from S. thermophilus DGCC7710 obtained by different isolation protocols, and to link these data to the technofunctionality in model food systems. The EPS content of the isolates was affected by the microfiltration/ultrafiltration membranes used for cell removal/dialysis, respectively, and was 89% at maximum. There was no link between purity of the isolates, molecular mass (3 × 106 Da) and intrinsic viscosity (0.53 – 0.59 mL/mg) of the EPS. After adding EPS containing isolates to milk, gel stiffness after acidification increased by 25% at maximum, depending on the type and concentration of the specific isolate. Partly purified, cell containing isolates were effective at low absolute EPS concentration (approx. 0.1 g/kg) and therefore represent, together with their simple isolation protocol, an interesting approach to introduce microbial EPS into non‐fermented products.

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“…j The structure of ASP [57] Wang et al [23] described the conformation of ASP-24 by SEM 1000-fold amplification as a compact surface structure [23]. In addition, it is reported that the ASP might have a higher value of apparent viscosity due to the intermolecular association of hydrophobic segments in the different size molecules [58].…”

Section: Conformational Featuresmentioning

confidence: 99%

Recent progress in the research of Angelica sinensis (Oliv.) Diels polysaccharides: extraction, purification, structure and bioactivities

Hou

Yin

Lan

et al. 2021

Chem. Biol. Technol. Agric.

114

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The root of Angelica sinensis (Oliv.) Diels, a well-known Chinese herbal medicine, has been used historically as hematopoietic and anti-inflammatory agents for thousands of years. Recent phytochemistry and pharmacological studies have proved that polysaccharides are one of the major active ingredients in A. sinensis. It has been demonstrated that ASPs (A. sinensis polysaccharides) had various important biological activities, such as hematopoietic, hepatoprotective, hypoglycemic, anti-inflammatory, antitumor, and antioxidant activities. The purpose of this present review is to appraise previous and current literatures on the extraction, purification, structural characterization and biological activities of ASPs. In addition, the structure–activity relationship will be further explored and discussed. We believe that this review will provide a useful bibliography for the investigation, production, and application of ASPs in functional foods and therapeutic agents. Moreover, this review also highlights the challenges of investigation and future considerations for holistic utilization.

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Physicochemical characterizations of polysaccharides from Angelica Sinensis Radix under different drying methods for various applications

Cited by 59 publications

References 29 publications

Structural and Biological Properties of Water Soluble Polysaccharides from Lotus Leaves: Effects of Drying Techniques

Structural and Biological Properties of Water Soluble Polysaccharides from Lotus Leaves: Effects of Drying Techniques

Pilot scale isolation of exopolysaccharides from Streptococcus thermophilus DGCC7710: Impact of methodical details on macromolecular properties and technofunctionality

Recent progress in the research of Angelica sinensis (Oliv.) Diels polysaccharides: extraction, purification, structure and bioactivities

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