The antioxidant activities and total phenolics of 28 plant products, including sunflower seeds, flaxseeds, wheat germ, buckwheat, and several fruits, vegetables, and medicinal plants were determined. The total phenolic content, determined according to the Folin−Ciocalteu method, varied from 169 to 10548 mg/100 g of dry product. Antioxidant activity of methanolic extract evaluated according to the β-carotene bleaching method expressed as AOX (Δ log A470/min), AA (percent inhibition relative to control), ORR (oxidation rate ratio), and AAC (antioxidant activity coefficient) ranged from 0.05, 53.7, 0.009, and 51.7 to 0.26, 99.1, 0.46, and 969.3, respectively. The correlation coefficient between total phenolics and antioxidative activities was statistically significant. Keywords: Antioxidant activity; phenolics; medicinal plants; oilseeds; buckwheat; vegetables; fruits; wheat products

Antioxidant Activity and Total Phenolics in Selected Fruits, Vegetables, and Grain Products

Extraction of anthocyanins from black currants using aqueous ethanol was optimized for yield and antioxidant activity. The process variable having the most effect on the extraction was the solvent to solid ratio, which increased phenolic extraction in the whole range from 0 to 19 L/kg. Total phenolics increased with ethanol concentration up to a maximum at about 60% and then decreased with further increase in solvent concentration irrespective of the solvent to solid ratio. Temperature only affected the extraction of anthocyanins. Increasing the temperature beyond 30 to 35 °C resulted in degradation of anthocyanins and reduction of yields. Variation in extract composition was not sufficiently large to affect antioxidant activity.

Optimization of Extraction of Anthocyanins from Black Currants with Aqueous Ethanol

Flaxseed (Linum usitatissimum L.) is an oilseed used in industrial and natural health products. Flaxseed accumulates many biologically active compounds and elements including linolenic acid, linoleic acid, lignans, cyclic peptides, polysaccharides, alkaloids, cyanogenic glycosides, and cadmium. Most biological and clinical studies of flaxseed have focused on extracts containing α-linolenic acid or lignan. Other flaxseed compounds have received less attention and their activity is not well described. The benefits of consumption of whole flaxseed fractions such as oil, mucilage and protein indicate that consideration of the entire portfolio of bioactives present is required to associate biological activity with specific compounds.

Flaxseed ( Linum usitatissimum L.) bioactive compounds and peptide nomenclature: A review

https://profdoc.um.ac.ir/articles/a/1016826.pdf

Steady shear flow behavior of gum extracted from Ocimum basilicum L. seed: effect of concentration and temperature.

https://profdoc.um.ac.ir/articles/a/1011802.pdf

Response surface methodology for optimization of extraction yield, viscosity, hue and emulsion stability of mucilage extracted from Lepidium perfoliatum seeds

Aqueous extraction of hydrocolloidal gum from flaxseed was optimized using response surface methodology. Extraction temperature (25-100°C), pH (2.0-7.0) and water:seed ratio (6.0-20.0) were the factors investigated with respect to yield, apparent viscosity and protein content of the final gum extracts. Temperature and pH were found to have a significant influence on both yield and quality of the extracted crude gum while the water:seed ratio had only minor effects. Optimum conditions for the extraction were a temperature of 85-90°C, a pH 6.5-7.0 and a water:seed ratio of 13. In addition, steady shear and small strain oscillatory tests on aqueous dispersions of gums, extracted under various conditions, were conducted to assess the impact of extraction conditions on the rheological properties of the flaxseed gum preparations.

Optimization of an Aqueous Extraction Process for Flaxseed Gum by Response Surface Methodology

Seeds from cow cockle, an annual weed commonly found in grain fields of North America, were analyzed for their morphological and physical characteristics, proximate chemical composition, mineral constituents,and amino acid, lipid, and fatty acid composition The results revealed that the composition of whole, mature seed of cow cockle is similar to that of most cereal grains Dehulled seeds, however, contain over 77% starch with very small (05-10 microgram) granules of uniform size, while the hulls contain about 1% saponins; these seed constituents may find unique applications in the food/feed and cosmetics industries

Compositional and morphological characteristics of cow cockle (Saponaria vaccaria) seed, a potential alternative crop

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

B.D. Oomah

Author Tools

Chat about Author

Papers

Optimization of an Aqueous Extraction Process for Flaxseed Gum by Response Surface Methodology

Compositional and morphological characteristics of cow cockle (Saponaria vaccaria) seed, a potential alternative crop