Effects of extraction methods and solvents on the bioactive compounds, antioxidant activity and storage stability of anthocyanin rich blood fruit ( Haematocarpus validus ) extracts

2021 ◽  
Author(s):  
Raju Sasikumar ◽  
Dipak Das ◽  
Amit Jaiswal
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Storage Stability ◽  
Extraction Methods ◽  
And Storage

Comparison of Bioactive Compounds of Matricaria recutita Extracted by Ultrasound and Maceration and their Effects on Preventing Sunflower Oil During Frying

2019 ◽  
Vol 15 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Reza Farahmandfar ◽  
Maryam Asnaashari ◽  
Yegane Asadi ◽  
Batool Beyranvand
Keyword(s):  
Antioxidant Activity ◽  
Gallic Acid ◽  
Bioactive Compounds ◽  
Sunflower Oil ◽  
Radical Scavenging ◽  
Stability Index ◽  
Acid Value ◽  
Extraction Methods ◽  
Oil Stability Index ◽  
Matricaria Recutita

Background: It is important to study about the use of natural antioxidants as alternatives to synthetic ones due to the possibility of carcinogenic effects of synthetic antioxidants. This study is comparing the effect of the ultrasound-assisted and maceration extraction methods on antioxidant activity of Matricaria recutita. Methods: Bioactive compounds including phenolic, tocopherol, flavonoid and tannins and antioxidant activity of the extracts were evaluated. Moreover, extracts obtained from ultrasound and maceration methods were added to sunflower oil without any antioxidants at level of 200, 500 and 800 ppm, after that samples were heated at 180°C. Oxidation of the samples were evaluated after 0, 4, 8, 12, 16, 20 and 24 hours by measuring Peroxide Value (PV), Conjugated Diene (CD), Iodine Value (IV), Carbonyl Value (CV), Total Polar Compounds (TPC), Oil Stability Index (OSI), Color Index (CI) and acid value (AV). Results: The result showed total phenol (42.90 mg gallic acid/g extract), tocopherol (120.46 µg α - tocopherol/ml extract), flavonoid (2.64 mg/100 g extract) and tannins (3.89 mg gallic acid/g extract) of ultrasound extracts were higher than maceration extracts. Antioxidant activity of the extract was evaluated by DPPH assay which indicated 800 ppm of the Matricaria recutita extracted by ultrasound was the highest radical scavenging ability. Conclusion: Result indicated both ultrasound and maceration extracts could increase the oil oxidative stability but could not increase compared to BHA. In most cases, the extract samples by ultrasound had a better effect on stabilizing of sunflower oil during frying.

scholarly journals Green Extraction Methods for Active Compounds from Food Waste—Cocoa Bean Shell

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 140 ◽  
Author(s):  
Pavlović ◽  
Jokić ◽  
Jakovljević ◽  
Blažić ◽  
Molnar
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Extraction Methods ◽  
Cocoa Bean ◽  
Extraction Temperature ◽  
Future Trends ◽  
Active Compounds ◽  
Dpph Method

This is the first report on the extraction of cocoa bean shell (CBS) using deep eutectic solvents (DESs). Screening results with 16 different choline chloride-based DESs showed how choline chloride:oxalic acid DES was the most suitable solvent for the extraction of the bioactive compounds from CBS and that concentrations varied greatly depending on the used solvent. The DES extraction was compared to the DESs coupled with microwave extraction (MAE), and the yields of the extracted compounds were higher for DES/MAE. For theobromine, the obtained yields for DES extraction were 2.145–4.682 mg/g, and for caffeine, were 0.681–1.524 mg/g, whereas for DES/MAE, the same compounds were obtained in 2.502–5.004 mg/g and 0.778–1.599 mg/g. Antioxidant activity was also determined, using DPPH method, obtaining 24.027–74.805% activity for DES extraction and 11.751–55.444% for DES/MAE. Water content significantly influenced the extraction of targeted active compounds from CBS, whereas extraction time and temperature did not show statistically significant influence. The extraction temperature only influenced antioxidant activity. The study demonstrated how extraction using DES and microwaves could be of a great importance in the future trends of green chemistry for the production of CBS extracts rich in bioactive compounds.

Evaluation of antioxidant activity of some plant extracts and their heat, pH and storage stability

2007 ◽  
Vol 100 (3) ◽  
pp. 1100-1105 ◽  
Author(s):  
Saeedeh Arabshahi-D ◽  
D. Vishalakshi Devi ◽  
Asna Urooj
Keyword(s):  
Antioxidant Activity ◽  
Plant Extracts ◽  
Storage Stability ◽  
And Storage

Antioxidant activity of polyphenolic extracts of filamentous fungus Mucor circinelloides (WJ11): Extraction, characterization and storage stability of food emulsions

2020 ◽  
Vol 34 ◽  
pp. 100525 ◽  
Author(s):  
Ahsan Hameed ◽  
Syed Ammar Hussain ◽  
Muhammad Umair Ijaz ◽  
Samee Ullah ◽  
Zafarullah Muhammad ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Filamentous Fungus ◽  
Storage Stability ◽  
Mucor Circinelloides ◽  
Food Emulsions ◽  
And Storage

The effects of different extraction methods on composition and storage stability of sturgeon oil

2015 ◽  
Vol 173 ◽  
pp. 274-282 ◽  
Author(s):  
Shuxian Hao ◽  
Ya Wei ◽  
Laihao Li ◽  
Xianqing Yang ◽  
Jianwei Cen ◽  
...  
Keyword(s):  
Storage Stability ◽  
Extraction Methods ◽  
And Storage

scholarly journals Nano-encapsulation of sweet basil essential oil based on native gums and its application in controlling the oxidative stability of Kilka fish oil

2021 ◽  
Author(s):  
Sahar Aboutalebzadeh ◽  
reza esmaeilzadeh kenari ◽  
Ali Jafarpour
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Extraction Efficiency ◽  
Storage Stability ◽  
Extraction Methods ◽  
Lepidium Sativum ◽  
Synthetic Antioxidants ◽  
Free Mode ◽  
Level 1 ◽  
The Impact

In the first section of this study, the effects of two different extraction methods on the efficiency and chemical composition and antioxidant activity were compared. Extraction efficiency of supercritical fluid was significantly higher than distillation of water. The results showed that antioxidant activity increased by increasing the concentration of the essential oil. In the second part of the study, to evaluate the impact of various walls, Lepidium sativum (LS) , Lepidium perfoliatum (LP) and a combination of both (LP/LS)were used for nano-encapsulation essential oil of basil by freeze-drying. Nanoencapsulate powder was evaluated regarding efficiency, particle size, PDI, Zeta poteintial,SEM, viscosity, Brix,pH, density.humidity, aw and FTIR. In the third part, essential oil of basil in free mode at Level 1%, 5% and 20% and in encapsulated at the level of 2% and TBHQ at 0.01% added to Kilka oil without antioxidants and then the samples were place in an oven at 60 ° C for 16 days. Storage stability of kilka oil regarding peroxide, thiobarbituric and color were analyzed. The results showed that basil essential oil had antioxidant activity and reduced the oxidation process, and also nanocapsule essential oil (especially with a coating of LP gum) showed better antioxidant activity than free essential oil, so that its antioxidant activity is competitive with TBHQ synthetic antioxidants. Finally, we can conclude that it is possible to substitute synthetic antioxidants by natural ones like olive leaf phenolic compounds but we have to apply some forms of encapsulation techniques in order to protect their properties.

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