Structural characterization and antioxidant activity of a low-molecular polysaccharide from Dendrobium huoshanense

Chang-cheng, Tian; Zha, Xue‐Qiang; Pan, Li‐Hua; Luo, Jian‐Ping

doi:10.1016/j.fitote.2013.09.018

Cited by 62 publications

(39 citation statements)

References 34 publications

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“…However, polysaccharides separated by different methods or came from different species showed significant various in DPPH, ∙OH and ABTS + scavenging activities. A great number of studies showed that the biological activity of polysaccharides were supposed to relate to the structural characteristic of the polysaccharides, including molecular weights, monosaccharide compositions, and configuration (Fan et al, ; Luo et al, , 2016; Tian, Zha, Pan, & Luo, ). Therefore, we could initial speculate that the higher antioxidant activities of HDOJ compared to FDOJ might be related to the variation of molecular weights, monosaccharide compositions, or configuration of DOPS after treated by HPP.…”

Section: Resultsmentioning

confidence: 99%

“…Tian et al () reported that low‐molecular huoshanense polysaccharide was a potential antioxidant component. Pan et al () studies the antioxidative effects of four different Dendrobium species which was Dendrobium huoshanense, D. officinale, D. nobile , and D. chrysotoxum , and suggested that there were significant differences antioxidative activities between the four Dendrobium polysaccharides, which may be contributed to their physicochemical properties.…”

Section: Resultsmentioning

confidence: 99%

“…This observation indicated that the protective effect of the HDOJ sample on the activities of T-AOC, SOD, and CAT was significantly higher than that of the FDOJ sample. Tian et al (2013) reported that low-molecular huoshanense polysaccharide was a potential antioxidant component. Pan et al (2014) studies the antioxidative effects of four different Dendrobium species which was Dendrobium huoshanense, D. officinale, D. nobile, and D.…”

Section: In Vivo Antioxidant Activities Of the Hdoj And Fdoj Samplesmentioning

confidence: 99%

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Effect of high-pressure processing on the polysaccharides content and antioxidant activity of fresh Dendrobium officinale juice

et al. 2018

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Fresh Dendrobium officinale possessed higher activities compared with the dried ones. High‐pressure processing (HPP) could effectively enhance the content and activities of Dendrobium officinale polysaccharides (DOPS) which is the main active ingredients of fresh Dendrobium officinale juice (FDOJ). Pressure, temperature, and holding time were optimized using response surface methodology to enhance DOPS content. The DOPS molecular weights (Mw) compositions and antioxidantive activities of FDOJ under the optimal HPP conditions (HDOJ) and FDOJ samples were also determined. The result indicated that under the optimal conditions, the highest (DOPS) content obtained was 315.4 mg/100 mL, which represented 37.7% more than that in FDOJ. The high‐performance gel permeation chromatography (HPGPC) result found that Mw compositions of the FDOJ and HDOJ samples were different. Both the in vitro and in vivo results revealed that the antioxidant activities of the HDOJ samples were significantly superior to that of the FDOJ samples. Practical applications As we know, HPP has been an attractive way to replace conventional heat treatments for the preservation of foods. This research investigated the utility of HPP for FDOJ. Results showed that, much more than prolonged shelf life of FDOJ, HPP could also enhance the content of DOPS which was the most important active ingredient and therefore improve the antioxidant activities of FDOJ. The results of this study could both expand the application of HPP in the development of the fresh Dendrobium officinale and related products and help to facilitate further development of fresh Dendrobium officinale industries.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: In Vivo Antioxidant Activities Of the Hdoj And Fdoj Samplesmentioning

confidence: 99%

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Effect of high-pressure processing on the polysaccharides content and antioxidant activity of fresh Dendrobium officinale juice

et al. 2018

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“…Normally, animals employ natural mechanisms to mitigate the effects of free radicals; however, the level of antioxidants produced naturally may not always be adequate enough [141]. Filamentous fungi are a well-known source of antioxidants such as ergothionein, phenolic acids, flavonoids, tocopherols, ascorbic acid, carotenoids, polyketides, terpenes, and steroids [142,143]. Methanolic extracts found in M. purpureus have robust activity against free radicals and lipid peroxidation [144].…”

Section: Antioxidantsmentioning

confidence: 99%

Use of Organic Wastes and Industrial By-Products to Produce Filamentous Fungi with Potential as Aqua-Feed Ingredients

et al. 2018

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Organic-rich waste and industrial by-product streams, generated in enormous amounts on a daily basis, contain substantial amounts of nutrients that are worthy of recovery. Biological conversion of organic-waste streams using filamentous fungi is a promising approach to convert nutrients into value-added bioproducts, such as fungal biomass. High-protein fungal biomass contains different kinds and levels of amino acids, fatty acids, immunostimulants, antioxidants, pigments, etc., which make it a potential choice for application in animal feed supplementation. Considering the challenges long faced by the aquaculture industry in fishmeal production due to the increasing prices and environmental concerns, the aquaculture industry is forced to provide alternative protein-rich sources to replace conventional fishmeal. In this review, the possibilities of utilization of filamentous fungi biomass cultivated on organic-rich waste streams, as an alternative nutrient source in fish feed, were thoroughly reviewed.

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“…Dendrobium officinale ( D. officinale ) was widely used as nutritious food in Asia for its remarkable bioactivities such as the curative effect on chronic atrophic gastritis and hypertension and diabetes, tumor‐suppression (Wang, Luo, Zha, & Feng, ), and anti‐aging effects (Fan et al, ; Tian, Zha, Pan, & Luo, ). Dendrobium officinale polysaccharide (DOP) is the main active component in D. officinale , which can be extracted in many ways, mainly including solvent extraction (Luo et al, ), acid extraction (Huang, Zha, Luo, & Yu, ), and alkaline extraction (Xing et al, ).…”

Section: Introductionmentioning

confidence: 99%

Optimization of the extraction process of polysaccharides from Dendrobium officinale and evaluation of the in vivo immunmodulatory activity

Wang

Guo

et al. 2018

J Food Process Preserv

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Dendrobium officinale (D. officinale) was regarded as the nutritious food in Asia for the remarkable bioactivities on immunmodulatory. Dendrobium officinale polysaccharide (DOP) served as the main active compound in the herb. Extraction of DOP was investigated and immunmodulatory activities were evaluated. The optimal extraction process (liquid‐to‐material ratio of 24.6:1, extraction time of 2.1 hr, and temperature of 67.4 °C) was obtained by single‐factor analysis and response surface optimization. Under this condition, DOP reached the extraction yield of 92.42%. Furthermore, DOP can promote the proliferation of splenic lymphocytes of immunodeficient mice and enhance the phagocytic capability of peritoneal macrophages. The contents of IL‐6 and TNF‐α in serum and splenocyte supernatants were significantly upregulated. Similarly, the contents of immune globulins (IgM and IgG) and hemolysis in serum was increased, as well as the antioxidant capabilities of thymus and serum. Therefore, this work gave an effective extraction method for DOP, and elucidated the immunmodulatory mechanisms of DOP at the level of the animal. Practical applications Dendrobium officinale polysaccharide (DOP) is active compounds in Dendrobium officinale (D. officinale), which was widely used as nutritious food in Asia for its remarkable bioactivities such as the curative effect on chronic atrophic gastritis and hypertension and diabetes, tumor‐suppression, and anti‐aging effects. In the current study, it optimized the extraction process to acquire high‐quality and stable DOP. Furthermore, it explored the immunoregulatory mechanism of DOP using immunosuppressive mouse model. This work contributed to the further development and utilization of DOP as a novel nutritious food additive component.

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Structural characterization and antioxidant activity of a low-molecular polysaccharide from Dendrobium huoshanense

Cited by 62 publications

References 34 publications

Effect of high-pressure processing on the polysaccharides content and antioxidant activity of fresh Dendrobium officinale juice

Effect of high-pressure processing on the polysaccharides content and antioxidant activity of fresh Dendrobium officinale juice

Use of Organic Wastes and Industrial By-Products to Produce Filamentous Fungi with Potential as Aqua-Feed Ingredients

Optimization of the extraction process of polysaccharides from Dendrobium officinale and evaluation of the in vivo immunmodulatory activity

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