Extraction optimization, physicochemical characterization, and antioxidant activity of polysaccharides from Rhodosorus sp. SCSIO-45730

Wang, Na; Dai, Lili; Chen, Zishuo; Tao, Li; Wu, Jiayi; Wu, Houbo; Wu, Hao; Xiang, Wenzhou

doi:10.1007/s10811-021-02646-2

Cited by 25 publications

(11 citation statements)

References 59 publications

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“…Extraction is a crucial and indispensable step for obtaining polysaccharides and can affect polysaccharide yield, quality, chemical structure, and even biological activities (Gong et al, 2020). Temperature, reagent type, and extraction time all affect extraction efficiency and biological activity (Wang et al, 2021a). Up to now, several conventional extraction techniques have been used to extract TMP like hot water extraction, ultrasonic extraction, microwave extraction, alkaline extraction, microwave-assisted extraction, ultrasonic-assisted extraction, and compound enzymatic hydrolysis extraction (Leong et al, 2021;.…”

Section: Extraction and Purificationmentioning

confidence: 99%

Structure, bioactivities and applications of the polysaccharides from Tricholoma Matsutake: a review

ZHANG

Lü

et al. 2022

Food Sci. Technol

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Tricholoma Matsutake is an important edible mushroom that has been artificially cultivated and used as a food and medicinal ingredient in traditional Chinese medicine. In the past decades, many researchers have reported that Tricholoma Matsutake Polysaccharides (TMP) possess various bioactivities, including anti-tumor, immunomodulatory, anti-oxidation and anti-aging. The structural characteristics of TMP were studied by GC-MS, LC-MS, NMR, and FT-IR, and the structure-activity relationship of TMP biomolecular was analyzed. This paper reviews the progress of TMP extraction, purification, structure characterization and application.

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Section: Extraction and Purificationmentioning

confidence: 99%

Structure, bioactivities and applications of the polysaccharides from Tricholoma Matsutake: a review

ZHANG

Lü

et al. 2022

Food Sci. Technol

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“…Rhodosorus sp. SCSIO-45730 was isolated from Xisha Islands, South China Sea (111°45.000′ E, 16°28.471′ N) by our laboratory (Wang et al, 2022b). The preliminary culture was carried out by incubating the strain in 1500-mL vertical glass bubble column photobioreactors (6.0 cm × 60 cm) containing seawater medium composed of 17.6 mM NaNO 3 , 0.69 mM K 2 HPO 4 (Wang et al, 2022b).…”

Section: Algal Collection and Culturementioning

confidence: 99%

“…SCSIO-45730 was isolated from Xisha Islands, South China Sea (111°45.000′ E, 16°28.471′ N) by our laboratory (Wang et al, 2022b). The preliminary culture was carried out by incubating the strain in 1500-mL vertical glass bubble column photobioreactors (6.0 cm × 60 cm) containing seawater medium composed of 17.6 mM NaNO 3 , 0.69 mM K 2 HPO 4 (Wang et al, 2022b). The culture medium was aerated with ambient air (400 matm, LC) and elevated CO 2 (1000 matm, HC) at 1 L min -1 continuously for pre-acclimation incubation for 8 days.…”

Section: Algal Collection and Culturementioning

confidence: 99%

“…Among them, a carbohydrate-rich microalgal strain, Rhodosorus sp. SCSIO-45730 belonging to unicellular red algae in the division Rhodophyta or red algae has received attention as a promising feedstock of biochemistry, biomass energy resources and pharmacology (Wang et al, 2022b). Dai et al (2020) reported the productivities of total carbohydrates and b-glucans of Rhodosorus sp.…”

Section: Introductionmentioning

confidence: 99%

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Effects of seawater acidification and solar ultraviolet radiation on photosynthetic performances and biochemical compositions of Rhodosorus sp. SCSIO-45730

Wang

Yang

et al. 2022

Front. Mar. Sci.

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Ocean acidification (OA) caused by rising atmospheric CO2 concentration and solar ultraviolet radiation (UVR) resulting from ozone depletion may affect marine organisms, but little is known regarding how unicellular Rhodosorus sp. SCSIO-45730, an excellent species resource containing various biological-active compounds, responds to OA and UVR. Therefore, we conducted a factorial coupling experiment to unravel the combined effects of OA and UVR on the growth, photosynthetic performances, biochemical compositions and enzyme activities of Rhodosorus sp. SCSIO-45730, which were exposed to two levels of CO2 (LC, 400 μatm, current CO2 level; HC, 1000 μatm, future CO2 level) and three levels of UVR (photosynthetically active radiation (PAR), PAR plus UVA, PAR plus UVB) treatments in all combinations, respectively. Compared to LC treatment, HC stimulated the relative growth rate (RGR) due to higher optimum and effective quantum yields, photosynthetic efficiency, maximum electron transport rates and photosynthetic pigments contents regardless of UVR. However, the presence of UVA had no significant effect but UVB markedly reduced the RGR. Additionally, higher carbohydrate content and lower protein and lipid contents were observed when Rhodosorus sp. SCSIO-45730 was cultured under HC due to the ample HCO3− applications and active stimulation of metabolic enzymes of carbonic anhydrase and nitrate reductase, thus resulting in higher TC/TN. OA also triggered the production of reactive oxygen species (ROS), and the increase of ROS coincided approximately with superoxide dismutase and catalase activities, as well as phenols contents. However, UVR induced photochemical inhibition and damaged macromolecules, making algal cells need more energy for self-protection. Generally, these results revealed that OA counteracted UVR-related inhibition on Rhodosorus sp. SCSIO-45730, adding our understanding of the red algae responding to future global climate changes.

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“…The PCs are considered to be natural antioxidants applicable in pharmaceutical, cosmetic, and food industries with health-promoting effects to prevent such diseases as cancer and inflammatory disorders ( Cory et al., 2018 ). Although there are several studies on the antioxidant activity of algal PE, EPS, and PCs ( Kim et al., 2018 ; Punampalam et al., 2018 ; Frazzini et al., 2022 ; Mousavian et al., 2022 ; Wang et al., 2022 ), cryptophyte algae have not yet been explored in terms of antioxidant activity of bioactive compounds.…”

Section: Introductionmentioning

confidence: 99%

Effect of micronutrient iron on bioactive compounds isolated from cryptophytes

2023

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Iron is one of the important micronutrients affecting algal growth due to its fundamental role in the physiological processes, including photosynthetic electron transport, respiration, and nitrogen fixation. In this study, the effect of different iron levels on growth and the production of bioactive compounds (phycoerythrin (PE), extracellular polymeric substances (EPS), and phenolic compounds (PCs)) of five cryptophyte strains were investigated. Also, the antioxidant capacity of the bioactive compounds was explored. The results showed species-specific responses to the impact of iron on growth of cryptophytes and accumulation of bioactive compounds. The growth rates of C. pyrenoidifera and Cryptomonas sp. varied significantly at different iron levels, and a reduction in the PE content was observed for several cryptophytes cultured at the highest iron level. However, no significant differences were detected in EPS content at different iron levels. Differences in PC contents of C. pyrenoidifera and Cryptomonas sp. at medium iron level were statistically significant compared with the other two treatments. The results also revealed species-specific differences in antioxidant activity at different iron levels; each studied strain followed its own pattern in response to change in iron level, and each bioactive compound had a different antioxidant activity. Overall, however, PCs demonstrated higher antioxidant activity than PE and EPS. In summary, iron has an impact on growth, bioactive compound accumulation, and antioxidant activity. However, the species-specific responses to changes in iron level should not be ignored when modifying culture conditions for optimal harvest of bioactive compounds.

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Extraction optimization, physicochemical characterization, and antioxidant activity of polysaccharides from Rhodosorus sp. SCSIO-45730

Cited by 25 publications

References 59 publications

Structure, bioactivities and applications of the polysaccharides from Tricholoma Matsutake: a review

Structure, bioactivities and applications of the polysaccharides from Tricholoma Matsutake: a review

Effects of seawater acidification and solar ultraviolet radiation on photosynthetic performances and biochemical compositions of Rhodosorus sp. SCSIO-45730

Effect of micronutrient iron on bioactive compounds isolated from cryptophytes

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