A comparative study between the electro-activation technique and conventional extraction method on the extractability, composition and physicochemical properties of canola protein concentrates and isolates

2015 ◽  
Vol 11 ◽  
pp. 56-71 ◽  
Author(s):  
Alina Gerzhova ◽  
Martin Mondor ◽  
Marzouk Benali ◽  
Mohammed Aider
2019 ◽  
Vol 50 (6) ◽  
pp. 539-546 ◽  
Author(s):  
Erin J. Hopkins ◽  
Andrea K. Stone ◽  
Jiapei Wang ◽  
Darren R. Korber ◽  
Michael T. Nickerson

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3092
Author(s):  
Rasha El-Shafei ◽  
Hala Hegazy ◽  
Bishnu Acharya

Non-conventional extraction of bioactive metabolites could provide sustainable alternative techniques to preserve the potency of antioxidants and antiviral compounds extracted from macro-algae. In this paper, we first reviewed the antioxidant and antiviral potential of the active metabolites that exist in the three known macro-algae classes; Phaeophyceae, Rhodophyceae, and Chlorophyceae, and a comparison between their activities is discussed. Secondly, a review of conventional and non-conventional extraction methods is undertaken. The review then focused on identifying the optimal extraction method of sulphated polysaccharide from macro-algae that exhibits both antiviral and antioxidant activity. The review finds that species belonging to the Phaeophyceae and Rhodophceae classes are primarily potent against herpes simplex virus, followed by human immunodeficiency virus and influenza virus. At the same time, species belonging to Chlorophyceae class are recorded by most of the scholars to have antiviral activity against herpes simplex virus 1. Additionally, all three macro-algae classes exhibit antioxidant activity, the potency of which is a factor of the molecular structure of the bioactive metabolite as well as the extraction method applied.


1999 ◽  
Vol 39 (7) ◽  
pp. 243-250 ◽  
Author(s):  
Joana Azeredo ◽  
Valentina Lazarova ◽  
Rosário Oliveira

To study the composition of a biofilm a previous extraction method is required to separate cells from the matrix. There are several methods reported in the literature; however they are not efficient or promote leakage of intracellular material. In this work several extraction methods were assayed in mixed culture and pure culture biofilms and their efficiency was evaluated by the amount of organic carbon, proteins and intracellular material extracted. The results showed that the extraction with glutaraldehyde 3% (w/v) was the most suitable method, extracting great amounts of organic carbon without promoting cell lysis or permeabilization. Glutaraldehyde is a bifunctional reagent that binds to cell walls avoiding their permeabilization and the biofilm matrix is solubilized in the solution.


Author(s):  
Mohd. Fahmi Mohamad Amran ◽  
Riza Sulaiman ◽  
Saliyah Kahar ◽  
Suziyanti Marjudi ◽  
Khairul Annuar Abdullah ◽  
...  

2012 ◽  
Vol 447 (1) ◽  
pp. 203-206 ◽  
Author(s):  
I. S. Ryzhkina ◽  
Yu. V. Kiseleva ◽  
L. I. Murtazina ◽  
O. A. Mishina ◽  
E. D. Sherman ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Muhammad Habbib Khirzin

Gelatin is an intermediate ingredient which is oftenly used in many field such as food, pharmacy, and cosmetics. It is usually extracted from pig and cow. Halal issue of gelatin sources and the outbreaks of mad cow diseases encouraged people to find an alternative sources of gelatin. One of the alternative sources of gelatin was duck bone. The aim of this research was to describe physicochemical properties of duck bone gelatin which is extracted by using acid extraction method as an alternative sources of halal gelatin. The extraction of duck bone gelatin used 5% concentration of HCl (hydrochloric acid). The extraction process consisted of four steps, they were degreassing, defating, demineralization, and acid extraction. The result showed that gelatin which was extracted from duck bone had these several characteristic: yield of 6.24%, pH 4.0, water content of 13.43%, ash content of 13.42%, protein content of 65.43%, and whiteness degree of 30.35%. Generally, gelatin which was extracted from duck bone had similar characteristic with commercial gelatin and SNI standard. Further researcher had been suggested to reoptimized extraction method in order to reduce ash content.


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