Effect of γ-irradiation on structural, functional and antioxidant properties of β-glucan extracted from button mushroom (Agaricus bisporus)

Khan, Asma Ashraf; Gani, Adil; Shah, Asima; Masoodi, F.A.; Hussain, Peerzada R.; Wani, Idrees Ahmed; Khanday, Firdous A.

doi:10.1016/j.ifset.2015.05.006

Cited by 58 publications

(22 citation statements)

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“…Foam is a two‐phase system consisting of a dispersed phase (usually air) and a continuous phase. Polysaccharides generally remain in the aqueous subphase, because of their hydrophilic nature (Khan et al, ). FC showed a negative correlation with magnesium ( r = −0.506; nonsignificant at p < 0.05), and hunter L* ( r = −0.696, p < 0.05) and a significant correlation with ESI ( r = −0.721, p < 0.05).…”

Section: Resultsmentioning

confidence: 99%

β-glucan from different Indian oat (Avena sativa) cultivars: Chemical, functional, structural, and rheological properties

Singh

Kaur

Sogi

2018

J Food Process Preserv

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β‐glucan was isolated from eight Indian oat cultivars (OL‐9, OL‐10, Kent, OS‐6, OS‐7, OS‐346, HFO‐114, and PLP‐1) and characterized for its composition, functional, rheological, morphological, and x‐ray diffraction properties. The isolated β‐glucans had ash and protein contents of 1.10%–2.60% and 3.1%–4.7%, respectively. Among various minerals studied, magnesium and cobalt were found in higher concentrations. Water‐binding and foaming capacities of β‐glucans ranged between 2.15–5.00 g/g and 20%–48%, respectively. The properties examined were found to be cultivar‐dependent. Among all cultivars, OL‐10 cv. β‐glucan was significantly (p < 0.05) different in exhibiting the highest moisture, ash, protein, lightness, bulk density, and foam stability. Scanning electron micrographs revealed the porous and spongy appearance of β‐glucans with an irregular particle shape. The rheological measurements of β‐glucan suspensions from all cultivars indicated their shear thinning and viscoelastic behavior. Practical applications Oat β‐glucan has numerous health benefits along with desirable functional properties to be used as an ingredient in food industry. A comparative study of various compositional, functional, structural, and rheological properties of β‐glucan isolated from different oat cultivars will help in selection of a cultivar suitable for imparting desirable characteristics to various food products.

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Section: Resultsmentioning

confidence: 99%

β-glucan from different Indian oat (Avena sativa) cultivars: Chemical, functional, structural, and rheological properties

Singh

Kaur

Sogi

2018

J Food Process Preserv

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“…Emulsifying properties were determined by the method adopted by Khan et al (2015). Flour suspension (1 %) was homogenized with 5 mL of refined oil.…”

Section: Emulsion Capacity and Stabilitymentioning

confidence: 99%

Geometrical, functional, thermal, and structural properties of oat varieties from temperate region of India

et al. 2016

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Geometrical, functional, thermal properties and FTIR analysis of three varieties of oat flour (Sabzaar, SKO20, & SKO90) were investigated. Sabzaar showed highest thickness, geometric mean diameter, arthimetic mean diameter, sphericity and grain volume. The density of oat grains varied from 0.393 to 0.37 g/mL (bulk) and 1.2 to 1.8 g/mL (true). WAC showed significant (P<0.05) difference among the cultivars with Sabzaar flour showing the highest value (2.36 g/g) and SKO20 (1.98 g/g) the lowest. Peak viscosity of oat flours was in the range of 460.33-489.33 cP. Flour samples showed the presence of small as well as large starch granules, oval or irregular shape with a smooth surface having some dents or fissures and some damaged starch and with varying dimensions. Average granule size of oat starch samples was within the range of 1.5-6.6 μm in Sabzaar, 1.1-5.2 μm in SKO20, and 1.7-6.8 μm in SKO90. The gelatinization transition temperatures onset temperature (To), peak temperature (Tp), and conclusion temperature (Tc) varied significantly (p<0.05) among three varieties.

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“…The molecular weight changes caused by irradiation were mainly due to breakage of the glycosidic bond of polysaccharides (Khan et al, 2015). In this study, the Mw and Mn of APS were significantly decreased after γ-ray treated.…”

Section: F I G U R E 3 Ft-ir Spectra Of Astragalus Polysaccharides (Aps)mentioning

confidence: 49%

“…Previous studies showed that polysaccharides could be degraded by chemical, biological or physical modification (Cheng, Karim, & Seow, 2007;Feng, Du, Li, Hu, & Kennedy, 2008;Li, Qi, Li, Ding, & Zong, 2004). However, γ irradiation has been considered as a useful method to modify the structure of polysaccharides by cleavaging of the glycosidic bonds and exposing more functional groups with increased mobility (Khan et al, 2015). However, γ irradiation has been considered as a useful method to modify the structure of polysaccharides by cleavaging of the glycosidic bonds and exposing more functional groups with increased mobility (Khan et al, 2015).…”

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confidence: 99%

Immunomodulatory effect of γ‐irradiated Astragalus polysaccharides on immunosuppressed broilers

Ren

Zhu

et al. 2018

Animal Science Journal

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In this study, we irradiated Astragalus polysaccharides (APS) using 25 kGy 60Co γ ray to obtain γ‐irradiated Astragalus polysaccharides (IAPS) and then investigated the effects of IAPS on growth performance and immune function of cyclophosphamide (CPM)‐treated broilers. The physicochemical properties of APS and IAPS (molecular weight, water solubility, viscosity, morphological and structural properties) were evaluated. Then, 384 one‐day‐old Arbor Acres broiler chicks with similar initial weight were randomly assigned into 6 groups: the non‐treated group (control), and CPM‐treated groups were fed either a basal diet or the diets containing 900 mg/kg APS, or 900, 600, 300 mg/kg IAPS, respectively. On days 16, 18, and 20, all broilers except for the control group were intramuscularly injected with 0.5 ml CPM (40 mg/kg·BW). Broilers in the control group were intramuscularly injected with 0.5 ml sterilized saline (0.75%, wt/vol). This trial lasted for 21 days. The physicochemical treatment showed that γ irradiation could decrease the molecular weight and viscosity, and increase the water solubility of APS (p < 0.05), whereas the structural properties of APS was not affected. In the animal trial, 900 mg/kg APS or 900, 600 mg/kg IAPS relieved the decreased growth performance, thymus index, T lymphocytes proliferation, serum IgG concentration, NOS activity and the increased blood heterophil:lymphocyte ratio in CPM‐treated broilers (p < 0.05). CPM‐induced decreases in B lymphocytes proliferation and serum IgM concentration were only increased by IAPS at 900 mg/kg (p < 0.05). Overall, both APS and IAPS alleviated CPM‐induced immunosuppression. Especially, IAPS possessed better immunomodulatory effect than APS, indicating that γ irradiation could be used as an effective method to enhance the immunomodulatory activity of APS.

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Effect of γ-irradiation on structural, functional and antioxidant properties of β-glucan extracted from button mushroom (Agaricus bisporus)

Cited by 58 publications

References 50 publications

β-glucan from different Indian oat (Avena sativa) cultivars: Chemical, functional, structural, and rheological properties

β-glucan from different Indian oat (Avena sativa) cultivars: Chemical, functional, structural, and rheological properties

Geometrical, functional, thermal, and structural properties of oat varieties from temperate region of India

Immunomodulatory effect of γ‐irradiated Astragalus polysaccharides on immunosuppressed broilers

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