scholarly journals Investigating relationship between water production and interfacial activity of γ-oryzanol, ethyl ferulate, and ferulic acid during peroxidation of bulk oil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohamad Reza Toorani ◽  
Mohammad-Taghi Golmakani
Keyword(s):  
Antioxidant Activity ◽  
Ferulic Acid ◽  
Reverse Micelles ◽  
Critical Concentration ◽  
Interfacial Phenomena ◽  
Water Production ◽  
Bulk Oil ◽  
Ethyl Ferulate ◽  
Lipid System ◽  
Oil Monitoring

AbstractIn this study, lecithin (as a surfactant) was added to promote the inhibitory-mechanism of γ-oryzanol, ethyl-ferulate and ferulic acid (based on the interfacial phenomena) so as to inhibit the oxidation of stripped sunflower oil. Monitoring the amount of water production as a byproduct of oxidation showed that the water content of the lipid system increased remarkably through the oxidation progress. Lecithin enhanced the critical concentration of hydroperoxides in reverse micelles, compared to the basic state (14.8 vs. 9.2 mM), thereby improving the hydrogen-donating mechanism of antioxidants. The size of reverse micelles increased progressively during the oxidation, while two breakpoints were pointed out in the micelles growth, i.e. at the end of the initiation and the propagation phases. Based on the kinetic data, ferulic acid showed the highest antioxidant activity (23.4), compared to ethyl-ferulate (15.5) and γ-oryzanol (13.7). Generally, lecithin enhanced antioxidant activity (~ 65%) by improving the interfacial performance of antioxidants.

scholarly journals Investigating the Relationship Between Water Production and Interfacial Activity of Γ-oryzanol, Ethyl Ferulate, and Ferulic Acid During the Peroxidation of Bulk Oil

2021 ◽  
Author(s):  
Mohamad Reza Toorani ◽  
Mohamad-Taghi Golmakani
Keyword(s):  
Antioxidant Activity ◽  
Ferulic Acid ◽  
Reverse Micelles ◽  
Critical Concentration ◽  
Water Production ◽  
Bulk Oil ◽  
Ethyl Ferulate ◽  
Lipid System ◽  
Oil Monitoring ◽  
The Relationship

Abstract In this study, lecithin (as a surfactant) was added to promote the inhibitory-mechanism of γ-oryzanol, ethyl-ferulate and ferulic acid (based on the interfacial phenomena) so as to inhibit the oxidation of stripped sunflower oil. Monitoring the amount of water production as a byproduct of oxidation showed that the water content of the lipid system increased remarkably through the oxidation progress. Lecithin enhanced the critical concentration of hydroperoxides in reverse micelles, compared to the basic state (14.8 vs. 9.2 mM), thereby improving the hydrogen-donating mechanism of antioxidants. The size of reverse micelles increased progressively during the oxidation, while two breakpoints were pointed out in the micelles growth, i.e. at the end of the initiation and the propagation phases. Based on the kinetic data, ferulic acid showed the highest antioxidant activity (23.4), compared to ethyl-ferulate (15.5) and γ-oryzanol (13.7). Generally, lecithin enhanced antioxidant activity (~65%) by improving the interfacial performance of antioxidants.

Lipase-Catalyzed Synthesis of Ferulyl Oleins and their Inhibition Effects on Nitrosamine

2012 ◽  
Vol 549 ◽  
pp. 242-245
Author(s):  
Lin Lin Chen ◽  
Jia Ying Xin ◽  
Ying Xin Zhang ◽  
Yan Wang
Keyword(s):  
Ferulic Acid ◽  
Water Activity ◽  
Reaction System ◽  
In Vitro Experiments ◽  
Inhibition Rate ◽  
Reaction Parameters ◽  
Ethyl Ferulate

Ferulyl oleins were synthesized from ethyl ferulate and triolein with Lipopan lipase. The influence of reaction parameters, such as reaction system and water activity were evaluated. Among the tested lipases in different reaction system, Lipopan S BG appeared to be the most appropriate resulting in a overall yield of ferulyl oleins 28.31% within 120h in toluene system, whereas transesterification degree with other lipases did not exceed 20% in any condition. Similarly, the Lipopan lipase expressed the highest transesterification yield at aw = 0.33. The inhibition of nitrosamine by ferulyl oleins in vitro experiments were performed. The results showed that ferulyl oleins had a greater ability to inhibit the N-nitrosodimethylamine formation than ferulic acid and ethyl ferulate did. Ferulyl oleins showed an inhibition rate as high as 76.9%. In the case of nitrite, the extent of the inhibition by ferulyl oleins was slightly lower than EF. They all exhibited the highest inhibition rate at the concentration of 1.5mg/mL. The results suggest that ferulyl oleins can inhibite nitrosamine formation efficiently.

scholarly journals Effective Utilization of Pineapple Waste, Evaluation of Ferulic Acid, Micro Nutrients and Antioxidant Property

2020 ◽  
Vol 2 (1) ◽  
pp. 30
Keyword(s):  
Antioxidant Activity ◽  
Ferulic Acid ◽  
High Performance ◽  
Soxhlet Extraction ◽  
Antioxidant Property ◽  
Extraction Process ◽  
Fruit Peel ◽  
Manganese Zinc ◽  
Pineapple Peel ◽  
Phosphorus Iron

India is the second-largest producer of fruit and vegetable producers. Usually, after fruit intake, fruit peel is left as waste. The main bioactive components of pineapple are phenolic compounds, β-carotene, ascorbic acid, and flavonoids. Ferulic acid is a phenolic acid widely used in the nutritional and cosmetic fields. In this study, pineapple peel was dried, powdered, and vitamin content (A, B, B1, B2, B6, B12 & C), calcium, potassium, phosphorus, iron, manganese, zinc and food fiber were analyzed. Moreover, in the present study, traditional and non-conventional processes such as Soxhlet extraction, supreme fluid extraction, and normal solvent extraction was used for the extraction of ferulic acid, which is a precursor for vanillin synthesis. The quantification of ferulic acid was done by High performance fluid chromatographic (HPL C) method. After the above-mentioned extraction process overall phenolic and antioxidant activity were also evaluated and compared. The highest concentrations of ferulic acid (0.7696g/100 g), phenolic compound (2.365mg / GAE), antioxidant activity (45 percent), and yield (90.5 %) were obtained for Soxhlet extraction using methanol.

Synthesis and antioxidant activity evaluation of a novel cellulose hydrogel containing trans-ferulic acid

2009 ◽  
Vol 75 (1) ◽  
pp. 184-188 ◽  
Author(s):  
Sonia Trombino ◽  
Roberta Cassano ◽  
Ermelinda Bloise ◽  
Rita Muzzalupo ◽  
Lorena Tavano ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ferulic Acid ◽  
Activity Evaluation ◽  
Cellulose Hydrogel

Laccase-catalysed oxidation of ferulic acid and ethyl ferulate in aqueous medium: A green procedure for the synthesis of new compounds

2014 ◽  
Vol 145 ◽  
pp. 1046-1054 ◽  
Author(s):  
Abdulhadi Aljawish ◽  
Isabelle Chevalot ◽  
Jordane Jasniewski ◽  
Cédric Paris ◽  
Joël Scher ◽  
...  
Keyword(s):  
Ferulic Acid ◽  
Aqueous Medium ◽  
Ethyl Ferulate ◽  
Catalysed Oxidation ◽  
New Compounds ◽  
Green Procedure

Effects of Copper on the Antioxidant Activity of Olive Polyphenols in Bulk Oil and Oil-in-Water Emulsions

2006 ◽  
Vol 54 (10) ◽  
pp. 3738-3743 ◽  
Author(s):  
Fátima Paiva-Martins ◽  
Vera Santos ◽  
Hugo Mangericão ◽  
Michael H. Gordon
Keyword(s):  
Antioxidant Activity ◽  
Bulk Oil ◽  
Oil In Water

A theoretical study on antioxidant activity of ferulic acid and its ester derivatives

2016 ◽  
Vol 15 (04) ◽  
pp. 1650028 ◽  
Author(s):  
Romesh Borgohain ◽  
Jyotirekha G. Handique ◽  
Ankur Kanti Guha ◽  
Sanjay Pratihar
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Density Functional ◽  
Building Blocks ◽  
Functional Theory ◽  
Reactivity Descriptors ◽  
Alkyl Groups ◽  
Natural Phenolic Compounds ◽  
Relationship Of

Phenolic compounds play a very crucial role as antioxidant that can prevent various diseases caused by free radicals in human body. Although, lots of natural phenolic compounds having antioxidant activity are available nowadays, the modeling of compounds with naturally available phenolics as building blocks is very important in order to get enhanced antioxidant activity. In this study, Ferulic acid (FA), one natural phenolic acid present in coffee, apples, orange, etc., is taken as building block and its ester derivatives with different alkyl groups are subjected to measure the antioxidant activity by using density functional theory (DFT). Various parameters like bond dissociation enthalpy (BDE), vertical ionization potential (IP[Formula: see text]), reactivity descriptors, metal chelation ability, etc. are used to measure the antioxidant activity. All the parameters suggest that the ester derivatives are superior antioxidants to the parent FA. Since FA has been reported to be present as esters in many herbs and plants, hence our study provides a route to study the structure activity relationship of this class of natural phenolics with antioxidant activity.

scholarly journals Standardization ofTragopogon graminifoliusDC. Extract Based on Phenolic Compounds and Antioxidant Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mohammad Hosein Farzaei ◽  
Mahnaz Khanavi ◽  
Ghazaleh Moghaddam ◽  
Farzaneh Dolatshahi ◽  
Roja Rahimi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Ferulic Acid ◽  
Aerial Part ◽  
Antioxidant Properties ◽  
Dosage Forms ◽  
Hplc Method ◽  
Total Phenolic ◽  
Root Extract ◽  
Coumaric Acid

Tragopogon graminifoliusDC. (TG), Compositae family, is traditionally used for the treatment of various diseases like gastrointestinal and hepatic disorders. The aim of the present study is to standardize extracts from TG used for preparation of different dosage forms in traditional Iranian medicine (TIM) based on phenolic compounds. For this purpose, total phenolic content and some phenolic compounds were determined in ethanolic extracts from aerial part and root of TG by HPLC method. Furthermore, antioxidant activity was evaluated using DPPH-HPLC methods. Caffeic acid, gallic acid,ρ-coumaric acid, ferulic acid, and catechin were detected in root and aerial part of TG.ρ-Coumaric acid (6.357 ± 0.014 mg·g−1) was dominant phenolic compound in aerial part followed by ferulic acid (1.24 ± 0.018 mg·g−1). Also,ρ-coumaric acid (2.685 ± 0.031 mg·g−1) was highly abundant in root, followed by catechin (2.067 ± 0.021 mg·g−1). Antioxidant activity of root extract (460.45 ± 0.78 µg Vit.E.E·mL−1) was better than that of aerial part. Generally, phenolic compounds are one of the major constituents of TG and could be used as markers for standardization of dosage forms prepared from this plant. Also, TG demonstrated significant antioxidant activity using DPPH-HPLC method. Phenolic compounds of TG may be responsible for its marked antioxidant properties.

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