Application of gum Arabic and maltodextrin for encapsulation of eggplant peel extract as a natural antioxidant and color source

2019 ◽  
Vol 140 ◽  
pp. 59-68 ◽  
Author(s):  
Khashayar Sarabandi ◽  
Seid Mahdi Jafari ◽  
Alireza Sadeghi Mahoonak ◽  
Adeleh Mohammadi
Keyword(s):  
Gum Arabic ◽  
Natural Antioxidant ◽  
Peel Extract ◽  
Color Source

scholarly journals Prospects for rambutan peel extract as natural antioxidant on the aging properties of vulcanized natural rubber

SPE Polymers ◽  
2021 ◽  
Author(s):  
Udomlak Sukatta ◽  
Prapassorn Rugthaworn ◽  
Wichudaporn Seangyen ◽  
Rattana Tantaterdtam ◽  
Wirasak Smitthipong ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Natural Antioxidant ◽  
Aging Properties ◽  
Peel Extract

scholarly journals Spray Dried Extract ofPhormidium valderianumas a Promising Source of Natural Antioxidant

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Dipan Chatterjee ◽  
Paramita Bhattacharjee ◽  
Gour Gopal Satpati ◽  
Ruma Pal
Keyword(s):  
Limit Of Detection ◽  
Reducing Power ◽  
Gum Arabic ◽  
Natural Antioxidant ◽  
Wall Material ◽  
Inlet Temperature ◽  
Storage Study ◽  
Algal Extract ◽  
Dried Extract ◽  
Promising Source

Microencapsulation of antioxidant-rich fraction obtained by supercritical carbon dioxide extraction (at 50°C, 500 bar with extraction time of 90 min, and flow rate of CO2at 2 L/min) of lyophilized biomass ofPhormidium valderianumwas carried out in a spray dryer using maltodextrin and gum arabic. Microencapsulation conditions that provided the best combination of phytochemical properties such as antioxidant activity, phenolic content, and reducing power with reasonable powder yield were an inlet temperature of 130°C and wall material composition as maltodextrin: gum arabic = 70 : 30. Toxicological study reported that the Anatoxin-a content of this encapsulated powder was below the limit of detection of HPLC. Storage study established that encapsulation of this antioxidant-rich algal extract resulted in eight times enhancement of half-life (T1/2) values. The release profile of microencapsulated antioxidant-rich fraction from the encapsulated powder was found to follow first order anomalous transport kinetics. Therefore, this microencapsulated algal extract with minimum toxicity is a source of natural antioxidant and could have promising use as novel dietary supplement.

Gum arabic helps prepare better lacey polymer films for specimen support in electron microscopy

1993 ◽  
Vol 51 ◽  
pp. 240-241
Author(s):  
Shailesh R. Sheth ◽  
Jayesh R. Bellare
Keyword(s):  
Electron Microscopy ◽  
Polymer Films ◽  
Gum Arabic ◽  
Complete Removal ◽  
Ammonium Bromide ◽  
Release Agent ◽  
Astigmatism Correction ◽  
Long Time ◽  
Micro Holes ◽  
Cetyl Trimethyl Ammonium

Specimen support and astigmatism correction in Electron Microscopy are at least two areas in which lacey polymer films find extensive applications. Although their preparation has been studied for a very long time, present techniques still suffer from incomplete release of the film from its substrate and presence of a large number of pseudo holes in the film. Our method ensures complete removal of the entire lacey film from the substrate and fewer pseudo holes by pre-treating the substrate with Gum Arabic, which acts as a film release agent.The method is based on the classical condensation technique for preparing lacey films which is essentially deposition of minute water or ice droplets on the substrate and laying the polymer film over it, so that micro holes are formed corresponding to the droplets. A microscope glass slide (the substrate) is immersed in 2.0% (w/v) aq. CTAB (cetyl trimethyl ammonium bromide)-0.22% (w/v) aq.

Gum Arabic in Chemical Reactions

1883 ◽  
Vol 15 (366supp) ◽  
pp. 5844-5844
Author(s):  
MM. Jules Lefort ◽  
P. Thibault
Keyword(s):  
Chemical Reactions ◽  
Gum Arabic
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