scholarly journals Subcritical water extraction and antioxidant activity evaluation with on-line HPLC-ABTS·+ assay of phenolic compounds from marigold (Tagetes erecta L.) flower residues

2014 ◽  
Author(s):  
Honggao Xu ◽  
Weiyou Wang ◽  
Junping Jiang ◽  
Fang Yuan ◽  
Yanxiang Gao
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Subcritical Water ◽  
Water Extraction ◽  
Tagetes Erecta ◽  
Subcritical Water Extraction ◽  
Abts Assay ◽  
Activity Evaluation ◽  
On Line ◽  
Tagetes Erecta L

scholarly journals Subcritical water extraction of flavoring and phenolic compounds from cinnamon bark (Cinnamomum zeylanicum)

2012 ◽  
Vol 61 (6) ◽  
pp. 349-355 ◽  
Author(s):  
Pramote Khuwijitjaru ◽  
Nucha Sayputikasikorn ◽  
Suched Samuhasaneetoo ◽  
Parinda Penroj ◽  
Prasong Siriwongwilaichat ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Cinnamomum Zeylanicum ◽  
Cinnamon Bark

scholarly journals Subcritical Water Extraction of Low-molecular-weight Phenolic Compounds from Oil Palm Biomass

2014 ◽  
Vol 48 (3) ◽  
pp. 355-362 ◽  
Author(s):  
Fumio KAWAMURA ◽  
Nur Syahirah SAARY ◽  
Rokiah HASHIM ◽  
Othman SULAIMAN ◽  
Koh HASHIDA ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Phenolic Compounds ◽  
Oil Palm ◽  
Subcritical Water ◽  
Water Extraction ◽  
Low Molecular Weight ◽  
Subcritical Water Extraction ◽  
Oil Palm Biomass

scholarly journals Subcritical Water Extraction of Phenolic Compounds from Moringa Oleifera Leaf

2015 ◽  
Vol 0 (1) ◽  
Author(s):  
Siti Zullaikah ◽  
Irfan Saputra ◽  
Ghuzrina Prihandini ◽  
M. Rachimoellah
Keyword(s):  
Phenolic Compounds ◽  
Moringa Oleifera ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction

scholarly journals Thermal Processing Effects on the Chemical Constituent and Antioxidant Activity of Okara Extracts Using Subcritical Water Extraction

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Hongyi Sun ◽  
Xi Yuan ◽  
Zhenya Zhang ◽  
Xin Su ◽  
Min Shi
Keyword(s):  
Antioxidant Activity ◽  
Thermal Processing ◽  
Subcritical Water ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Water Extraction ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Flavonoid Content ◽  
Subcritical Water Extraction

Subcritical water extraction (SWE) has been employed for the extraction of bioactive compounds from plant materials with cost-effectiveness, less consuming time, and environmental sustainability. To explore the effects of thermal processing during SWE, total organic content (TOC), total sugar, polysaccharides, total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity (ABTS and DPPH assays) of eight aqueous extracts have been quantitatively investigated. The results indicated that elevated temperatures indeed resulted in significant changes in the constituents and antioxidant activities of okara extracts. Among them, the extract obtained at 220°C exhibited the highest total phenolic, flavonoid content, DPPH (2,2-diphenyl-1-picrylhydrazyl) radical-scavenging activity, and ABTS [2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonate)] radical-scavenging activity. However, phenolic compounds were destroyed after the treatment above 230°C, suggesting that any polymer processing is improper to undertake at higher than this value to achieve the high antioxidant activity. Moreover, a significant positive correlation between TPC or TFC and antioxidant capacity (DPPH and ABTS) values was detected.

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