Comparative studies on chemical parameters and antioxidant properties of stipes and caps of shiitake mushroom as affected by different drying methods

2013 ◽  
Vol 93 (12) ◽  
pp. 3107-3113 ◽  
Author(s):  
Ning Zhang ◽  
Haixia Chen ◽  
Yu Zhang ◽  
Lishuai Ma ◽  
Xufeng Xu
Keyword(s):  
Comparative Studies ◽  
Antioxidant Properties ◽  
Drying Methods ◽  
Chemical Parameters ◽  
Shiitake Mushroom

Effect of drying methods on physico-chemical and antioxidant properties of date fibre concentrates

2011 ◽  
Vol 125 (4) ◽  
pp. 1194-1201 ◽  
Author(s):  
Chema Borchani ◽  
Souhail Besbes ◽  
Manel Masmoudi ◽  
Christophe Blecker ◽  
Michel Paquot ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Drying Methods ◽  
Physico Chemical

scholarly journals Studies on drying characteristic, nutritional composition, and antioxidant properties of Stevia rebaudiana (Bertoni) leaves

2015 ◽  
Vol 29 (3) ◽  
pp. 323-331 ◽  
Author(s):  
Yolanda B. Moguel-Ordóñez ◽  
Diana L. Cabrera-Amaro ◽  
Maira R. Segura-Campos ◽  
Jorge C. Ruiz-Ruiz
Keyword(s):  
Antioxidant Properties ◽  
Reducing Power ◽  
Stevia Rebaudiana ◽  
Biological Properties ◽  
Nutritional Composition ◽  
Antioxidant Compounds ◽  
Drying Methods ◽  
Stevia Rebaudiana Bertoni ◽  
Trolox Equivalent ◽  
Drying Treatment

Abstract Drying characteristics of Stevia rebaudiana (Bertoni) leaves using radiation drying, convection drying, sun drying, and shade drying treatments were investigated in a convective type. Results for all treatments indicated that drying took place in the falling rate period. The chroma of the dried samples ranged between 29.66 and 23.85. Convection and shade drying samples were found better in colour and had the highest content of total pigments. The proximate and fibre composition were affected by the drying treatments. Extracts obtained from convection drying and shade drying leaves exhibited higher values of Trolox equivalent antioxidant capacities 416.89-423.64 mM mg−1 and ferric reducing power 85.19-87.97%. These extracts also showed ion chelating capacity 59.05-60.21% for Cu+2 and 55.05-59.11% for Fe+2. The results indicate that it is possible to select the drying treatment to obtain the best nutritional and biological properties. Convection drying and shade drying were the least aggressive treatments and leaf powders obtained by these drying methods could be used as sources of nutrients, fibre, and antioxidant compounds.

scholarly journals Effect of Extraction Solvents and Drying Methods on the Physicochemical and Antioxidant Properties of Helicteres hirsuta Lour. Leaves

Technologies ◽  
2015 ◽  
Vol 3 (4) ◽  
pp. 285-301 ◽  
Author(s):  
Hong Pham ◽  
Van Nguyen ◽  
Quan Vuong ◽  
Michael Bowyer ◽  
Christopher Scarlett
Keyword(s):  
Antioxidant Properties ◽  
Drying Methods ◽  
Extraction Solvents

scholarly journals Antioxidant Activity and Total Phenolic Content in Shiitake Mycelial Exudates

2011 ◽  
Vol 6 (6) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Weihuan Huang ◽  
Joo-Shin Kim ◽  
Hau Yin Chung
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Properties ◽  
Reducing Power ◽  
In Vitro Assays ◽  
Total Phenolic ◽  
Shiitake Mushroom ◽  
Ferrous Ions

Exudates (DE) secreted from two shiitake mushroom mycelia (strains 1358 and L5458) were evaluated for their antioxidative properties and phenolic content. 1358DE and L5458DE showed distinct antioxidant activity in different in vitro assays, including scavenging activity on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, hydroxyl radical, superoxide anions and hydrogen peroxide; the ability to chelate ferrous ions; reducing power; hemolysis inhibition activity in rat erythrocyte; and lipid peroxidation inhibition (IC50 values of 1358DE and L5458DE were 3.3 and 132.6; 44.5 and > 1000; 26.9 and 53.7; 153.6 and >175.0; 176.0 and 521.0; 26.7 and 746.4; 47.8 and 736.9; and 3.1 and > 1000 μg/mL, respectively). Their total phenolic content was 237.33 and 24.08 mg gallic acid equivalent (GAE)/g of dry DE, respectively. Overall, these results show that 1358DE generally possesses better antioxidant properties than L5458DE, possibly due to its larger total phenolic content. Shiitake mushroom mycelial exudates, particularly of 1358DE, could be a good source of natural antioxidants.

Comparative studies on the antioxidant properties of CGP 2881 and probucol in V/LDL isolated from cholic acidfed rats

1993 ◽  
Vol 15 (5) ◽  
pp. 510
Author(s):  
Kenneth S. Leonards ◽  
Chii-Whei Hu ◽  
Wilbur K. Sawyer ◽  
Margaret F. Prescott
Keyword(s):  
Comparative Studies ◽  
Antioxidant Properties

scholarly journals Byproducts of orange extraction: influence of different treatments in fiber composition and physical and chemical parameters

2014 ◽  
Vol 50 (3) ◽  
pp. 473-482 ◽  
Author(s):  
Juliana Maria de Mello Andrade ◽  
Erna Vogt de Jong ◽  
Amélia Teresinha Henriques
Keyword(s):  
Dietary Fiber ◽  
Fiber Type ◽  
Fiber Content ◽  
Drying Methods ◽  
Chemical Parameters ◽  
Total Dietary Fiber ◽  
Insoluble Dietary Fiber ◽  
Juice Extraction ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical

In this work we evaluated the variability in fiber content and physical and chemical parameters of byproducts from orange juice extraction. Five different treatments and two drying methods were evaluated. The results indicate that drying by lyophilization was better than that drying in an oven. The pH ranged from approximately 3.47 to 3.96. The variation in moisture values was 9.22% ± 0.02 to 18.48 ± 0.52%. The total dietary fiber content in the resulting flours ranged from 42.44% to 62.74%. The soluble and insoluble dietary fiber contents differed among the samples, ranging from 5.04% to 19.95% for the first fiber type, and 23.96% to 57.70% for the second. In conclusion, three treatments, associated with freeze-drying, showed promising results in the development of fiber-rich product. However, some modifications are needed, as well as further analysis, to guarantee the benefits of these products for human health. This study contributes to the possible application of industrial byproducts.

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