Effect of various drying methods on the physicochemical characterizations, antioxidant activities and hypoglycemic activities of lychee (Litchi chinensis Sonn.) pulp polysaccharides

An, Kejing; Wu, Jijun; Xiao, Hong‐Wei; Hu, Teng‐Gen; Yu, Yuanshan; Yang, Wanyuan; Xiao, Gengsheng; Xu, Yu-Juan

doi:10.1016/j.ijbiomac.2022.08.083

Cited by 17 publications

(8 citation statements)

References 40 publications

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“…According to previous reports, the uronic acid content, molecular weight, monosaccharide composition, and chain conformation were found to have an impact on the antioxidant activity of natural polysaccharides [ 18 , 56 ]. Polysaccharides generally exhibited radical scavenging activity due to their ability to donate electrons or hydrogen [ 57 ].…”

Section: Resultsmentioning

confidence: 97%

Comparative Study on the Impact of Different Extraction Technologies on Structural Characteristics, Physicochemical Properties, and Biological Activities of Polysaccharides from Seedless Chestnut Rose (Rosa sterilis) Fruit

Chen,

Zhang,

Yang

et al. 2024

Foods

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Seedless chestnut rose (Rosa sterilis S. D. Shi, RS) is a fresh type of R. roxburghii Tratt with copious functional components in its fruit. Polysaccharides are recognized as one of the vital bioactive compounds in RS fruits, but their antioxidant and hypoglycemic properties have not been extensively explored. Hence, in this study, accelerated solvent extraction (RSP-W), citric acid (RSP-C), 5% sodium hydroxide/0.05% sodium borohydride (RSP-A), and 0.9% sodium chloride (RSP-S) solution extraction were individually utilized to obtain RS fruit polysaccharides. The physicochemical properties, structural characteristics, and biological activities were then compared. Results indicated that extraction methods had significant influences on the extraction yield, uronic acid content, monosaccharide composition, molecular weight, particle size, thermal stability, triple-helical structure, and surface morphology of RSPs apart from the major linkage bands and crystalline characteristics. The bioactivity tests showed that the RSP-S, which had the greatest amount of uronic acid and a comparatively lower molecular weight, exhibited more potent antioxidant and α-glucosidase inhibitory property. Furthermore, all RSPs inhibited α-glucosidase through a mixed-type manner and quenched their fluorescence predominantly via a static quenching mechanism, with RSP-S showing the highest binding efficiency. Our findings provide a theoretical basis for utilizing RSPs as functional ingredients in food industries.

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Section: Resultsmentioning

confidence: 97%

Comparative Study on the Impact of Different Extraction Technologies on Structural Characteristics, Physicochemical Properties, and Biological Activities of Polysaccharides from Seedless Chestnut Rose (Rosa sterilis) Fruit

Chen,

Zhang,

Yang

et al. 2024

Foods

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“…Moreover, it was observed that the SPAE particles were connected and formed a tight, uniform, spherical chain conformation with an island-shaped structure, while no bonds were formed between the PEP particles. This could be a result of the molecular aggregation caused by the hot processing of spray drying [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…The two absorption peaks at 2932 and 2934 cm −1 were attributed to C-H stretching vibrations. Moreover, it was commonly believed that the bands represented the typical peaks of polysaccharides [ 28 ], indicating that SPAE retained the characteristic peaks of polysaccharides as PEP did. The carbonyl asymmetric stretching vibration absorption peaks at 1647 and 1632 cm −1 indicated the presence of uronic acid in SPAE and PEP.…”

Section: Resultsmentioning

confidence: 99%

“…For example, PEP had the absorption peaks at 1204 cm −1 representing the C-O stretching band associated with the C-O-SO 3 group, while the absorption peaks at 1149 and 1105 cm −1 were typical signals of the pyranose ring of SPAE. A blue shift was observed in SPAE at 1047 and 993 cm −1 in comparison to the PEP, resulting in the absorption peaks at 1034 and 959 cm −1 of SPAE, which might be due to thermal aggregations of PEPs [ 28 ]. Furthermore, it was observed that only SPAE exhibited absorption peaks at 843 cm −1 , indicating the presence of a small amount of α-glycosidic bond.…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of Physicochemical Properties and Prebiotics Function of a Bioactive Pleurotus eryngii Aqueous Extract Powder Obtained by Spray Drying

Chen,

Zhou,

Chen

et al. 2024

Nutrients

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A bioactive Pleurotus eryngii aqueous extract powder (SPAE) was obtained by spray drying and its performance in terms of physicochemical properties, in vitro digestion, inflammatory factors, and modulation of the intestinal microbiota was explored. The results indicated that the SPAE exhibited a more uniform particle size distribution than P. eryngii polysaccharide (PEP). Meanwhile, a typical absorption peak observed at 843 cm−1 in the SPAE FTIR spectra indicated the existence of α-glycosidic bonds. SPAE exhibited higher antioxidant abilities and superior resistance to digestion in vitro. In addition, SPAE supplementation to mice significantly reduced the release of factors that promote inflammation, enhanced the secretion of anti-inflammatory factors, and sustained maximum production of short-chain fatty acids (SCFAs). Additionally, it significantly enhanced the relative abundance of SCFAs-producing Akkermansia and reduced the abundance of Ruminococcus and Clostridiides in intestines of mice. These results show the potential of SPAE as a novel material with prebiotic effects for the food and pharmaceutical industries.

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“…Uronic acid, including galacturonic acid [29] or glucuronic acid [5], is one of the main monosaccharide compositions in polysaccharides extracted from D. officinale leaves. It was reported that the uronic acid content has a strong correlation with the biological activity of polysaccharides [31], and drying techniques may significantly affect the uronic acid content of polysaccharides [12,31]. The uronic acid content was determined to be 7.24 g hg −1 , 7.78 g hg −1 , 7.93 g hg −1 , and 9.17 g hg −1 in polysaccharides from D. officinale leaves dried using the IRD, HD, MD, and FD methods, respectively (Figure 3B).…”

Section: Polysaccharides and Their Uronic Acid Contentmentioning

confidence: 99%

Comparative Evaluation of the Physiochemical Properties, and Antioxidant and Hypoglycemic Activities of Dendrobium officinale Leaves Processed Using Different Drying Techniques

Cai,

Dong,

Liu

et al. 2023

Antioxidants

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Dendrobium officinale leaves have the potential to be processed into natural antioxidants, functional foods, and food additives. To maximally maintain their quality, fresh D. officinale leaves were dehydrated using different drying methods, i.e., hot air drying (HD), microwave drying (MD), infrared drying (IRD), and freeze drying (FD), and then the physicochemical properties, microstructure, and biological activities of the dried samples were compared. The results showed that, with the FD method, the samples had a porous microstructure, maintained the highest phenolic content, and demonstrated the highest antioxidant and hypoglycemic activities. Among the three thermal drying methods, with the IRD method, the samples retained higher phenolic contents, showed stronger DPPH free-radical scavenging, ferric ion reducing, ferrous ion chelating, and α-glucosidase inhibitory abilities, and more strongly promoted glucose metabolism in insulin-resistant HL-7702 cells than the samples with the MD and HD methods. These results suggested that FD was the most suitable method. However, IRD might be a promising alternative, owing to the high cost and long time needed for FD for the large-scale drying of D. officinale leaves.

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Effect of various drying methods on the physicochemical characterizations, antioxidant activities and hypoglycemic activities of lychee (Litchi chinensis Sonn.) pulp polysaccharides

Cited by 17 publications

References 40 publications

Comparative Study on the Impact of Different Extraction Technologies on Structural Characteristics, Physicochemical Properties, and Biological Activities of Polysaccharides from Seedless Chestnut Rose (Rosa sterilis) Fruit

Comparative Study on the Impact of Different Extraction Technologies on Structural Characteristics, Physicochemical Properties, and Biological Activities of Polysaccharides from Seedless Chestnut Rose (Rosa sterilis) Fruit

Evaluation of Physicochemical Properties and Prebiotics Function of a Bioactive Pleurotus eryngii Aqueous Extract Powder Obtained by Spray Drying

Comparative Evaluation of the Physiochemical Properties, and Antioxidant and Hypoglycemic Activities of Dendrobium officinale Leaves Processed Using Different Drying Techniques

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