Effect of Indian brown seaweed Sargassum wightii as a functional ingredient on the phytochemical content and antioxidant activity of coffee beverage

Sorghum is a major cereal food worldwide, and is considered a potential source of minerals and bioactive compounds. Its wide adaptive range may cause variations in its agronomic traits, antioxidant properties, and phytochemical content. This extensive study investigated variations in seed characteristics, antioxidant properties, and total phenolic (TPC) and flavonoid contents (TFC) of sorghum collected from different ecological regions of 15 countries. The antioxidant potential of the seed extracts of various sorghum accessions was determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azinobis 3-ethylbenzothiazoline-6-sulfonate (ABTS) radical scavenging assays. Significant variations in TPC were observed among the sorghum accessions. All 78 sorghum accessions used in this study exhibited significant variations in TFC, with the lowest and highest amount observed in accessions C465 and J542, respectively. DPPH scavenging potential of the seed extracts for all the accessions ranged from 11.91 ± 4.83 to 1343.90 ± 81.02 µg mL−1. The ABTS assay results were similar to those of DPPH but showed some differences in the accessions. Pearson’s correlation analysis revealed a wide variation range in the correlation between antioxidant activity and TPC, as well as TFC, among the sorghum accessions. A wide diversity range was also recorded for the seed characteristics (1000-seed weight and seed germination rate). A dendrogram generated from UPGMA clustering, based on seed traits, antioxidant activity, TPC, and TFC was highly dispersed for these accessions. Variations among the accessions may provide useful information regarding the phytoconstituents, antioxidant properties, and phytochemical contents of sorghum and aid in designing breeding programs to obtain sorghum with improved agronomic traits and bioactive properties.

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Antidiabetic and antioxidant activity of phlorotannins extracted from the brown seaweed Cystoseira compressa in streptozotocin-induced diabetic rats

Environmental Science and Pollution Research ◽

10.1007/s11356-021-12347-5 ◽

2021 ◽

Author(s):

Saly Gheda ◽

Mai Abdel Naby ◽

Tarek Mohamed ◽

Leonel Pereira ◽

Abeer Khamis

Keyword(s):

Antioxidant Activity ◽

Brown Seaweed ◽

Diabetic Rats ◽

Cystoseira Compressa

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The effect of solvents on the antioxidant activity in Caco-2 cells of Irish brown seaweed extracts prepared using accelerated solvent extraction (ASE®)

Journal of Functional Foods ◽

10.1016/j.jff.2013.02.007 ◽

2013 ◽

Vol 5 (2) ◽

pp. 940-948 ◽

Cited By ~ 19

Author(s):

A.M. O’Sullivan ◽

Y.C. O’Callaghan ◽

M.N. O’Grady ◽

M. Hayes ◽

J.P. Kerry ◽

...

Keyword(s):

Antioxidant Activity ◽

Solvent Extraction ◽

Brown Seaweed ◽

Accelerated Solvent Extraction ◽

Seaweed Extracts ◽

Effect Of Solvents

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EVALUATION OF THE ANTITYROSINASE AND ANTIOXIDANT POTENTIAL OF ZINC OXIDE NANOPARTICLES SYNTHESIZED FROM THE BROWN SEAWEED-TURBINARIA CONOIDES

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2017v9i5.20847 ◽

2017 ◽

Vol 9 (5) ◽

pp. 116 ◽

Cited By ~ 4

Author(s):

Khoushika Raajshree R. ◽

Brindha Durairaj

Keyword(s):

Antioxidant Activity ◽

Zinc Oxide ◽

Zinc Oxide Nanoparticles ◽

Brown Seaweed ◽

Oxide Nanoparticles ◽

Zno Nps ◽

Skin Whitening ◽

Algal Extract ◽

Turbinaria Conoides ◽

Hydroethanolic Extract

Objective: The present study was designed to evaluate the antioxidant and antityrosinase properties of zinc oxide nanoparticles (ZnO-NPs) synthesized from brown seaweed Turbinaria conoides.Methods: Zinc Oxide Nanoparticles were synthesized from the hydroethanolic extract of Turbinaria conoides. Ultraviolet-Visible Spectrophotometric analysis was performed to confirm the formation of ZnO-NPs. Size, morphology and elemental composition of ZnO-NPs were analysed using SEM-EDAX. The antioxidant activity of the synthesized zinc oxide nanoparticles was investigated by total antioxidant capacity (phosphomolybdenum method), reducing power assay and ferric reducing antioxidant power assay (FRAP). Anti tyrosinase activity was assessed to validate the skin whitening ability of the ZnO-NPs. Results: The antioxidant activity of ZnO-NPs synthesized from hydroethanolic extract of Turbinaria conoides was maximum when compared with that of the hydroethanolic algal extract. The antityrosinase activity of ZnO-NPs was found to be maximum with 75% tyrosinase inhibition when compared to hydroethanolic algal extract which had 56% inhibition at 250μg/ml concentration.Conclusion: Overall our study provides a firm evidence to support that antityrosinase and antioxidant activities are exhibited by ZnO-NPs synthesized from hydroethanolic extract of Turbinaria conoides and it might be used as an antioxidant and as a source of skin whitening agent in cosmetics.

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Phytochemical content and antioxidant activity of six diverse varieties of whole wheat

Food Chemistry ◽

10.1016/j.foodchem.2009.06.021 ◽

2010 ◽

Vol 119 (1) ◽

pp. 249-257 ◽

Cited By ~ 147

Author(s):

Neal Okarter ◽

Chang-Shu Liu ◽

Mark E. Sorrells ◽

Rui Hai Liu

Keyword(s):

Antioxidant Activity ◽

Phytochemical Content ◽

Whole Wheat

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Effect of Different Pre-Treatments on Antinutrients and Antioxidants of Rice Bean (Vigna umbellata)

Acta Universitatis Cibiniensis Series E Food Technology ◽

10.2478/aucft-2020-0003 ◽

2020 ◽

Vol 24 (1) ◽

pp. 25-38

Author(s):

Damanpreet Kaur ◽

Kajal Dhawan ◽

Prasad Rasane ◽

Jyoti Singh ◽

Sawinder Kaur ◽

...

Keyword(s):

Antioxidant Activity ◽

Low Cost ◽

Nutrient Content ◽

Nutritional Factors ◽

Rice Bean ◽

Phytochemical Content ◽

Vigna Umbellata ◽

Commercial Applications ◽

Maximum Content ◽

Orphan Crop

AbstractRice bean (Vigna umbellata) is a legume that belongs to Vigna genus. Native to Indo-Chinese region, it is considered to be an ‘under-utilized’ or ‘orphan’ crop. Rice bean is known to possess high nutritional potential and antioxidant activity. But the use of rice bean supplementation in routine diet is limited despite its high nutritional profile due to the presence of non-nutritional factors. Thus, various pre-treatments like soaking, germination, oven roasting, sand roasting, boiling and pressure cooking at different time and temperature were carried out to reduce the anti-nutritional content of rice bean and to study its effect on antioxidant activity and phytochemical content. All the pre-treatments were able to significantly reduce the anti-nutrient content in rice bean, but germination showed the maximum reduction. Also germinated rice bean showed the maximum antioxidant potential and maximum content of total phenols, total flavonoids, vitamin C and carotenoids. Rice bean has been underutilized so far, owing to its antinutrient content and low popularity. This experiment attempted to use low cost processing to reduce the content of antinutrients and track the antioxidant content in rice bean. The concluded processing could be adopted for commercial applications for dietary supplementation.

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