Effects of Cooking Methods and Tea Marinades on the Formation of Heterocyclic Amines and Benzo[a]pyrene in Grilled Drumsticks

2020 ◽  
Vol 83 (2) ◽  
pp. 365-376
Author(s):  
MINGJUN YAO ◽  
IFTIKHAR ALI KHAN ◽  
YIQUN CHENG ◽  
YUN ANG ◽  
XINGHU ZHOU ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Total Content ◽  
Free Radical Scavenging ◽  
Heterocyclic Amines ◽  
Cooking Methods ◽  
Scavenging Activity ◽  
Radical Scavenging Ability

ABSTRACT The effects of different grilling methods and tea marinades on the formation of heterocyclic amines (HCAs) and benzo[a]pyrene (BaP) in grilled chicken drumsticks were investigated. This study showed that both the grilling method and type of charcoal used in charcoal grilling had a significant effect on the formation of HCAs and BaP. The total content of HCAs and BaP detected in drumsticks was the lowest under electric roasting, at 7.25 and 0.04 ng/g, respectively; thus, the electric grill can be used as an alternative grilling method to meet consumer demands for safety. The free radical scavenging ability of tea infusion was significantly higher than that of spice infusion. The white tea marinade significantly increased radical scavenging activity and prevented formation of HCAs and BaP more than the green tea marinade; thus, tea marinade can be applied to flavoring as a pretreatment to preserve the quality of meat and to decrease the generation of HCAs and BaP during cooking. HIGHLIGHTS

scholarly journals Novel 1,2,3-triazolium-functionalized inulin derivatives: synthesis, free radical-scavenging activity, and antifungal activity

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42225-42232 ◽  
Author(s):  
Qing Li ◽  
Lishushi Qiu ◽  
Wenqiang Tan ◽  
Guodong Gu ◽  
Zhanyong Guo
Keyword(s):  
Free Radical ◽  
Antifungal Activity ◽  
Click Reaction ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity ◽  
New Class ◽  
Radical Scavenging Ability

A new class of inulin derivatives possessing 1,2,3-triazolium charged units by associating “click reaction” with efficient 1,2,3-triazole quaternization were designed and synthesized. The synthesized inulin derivatives possess excellent free radical-scavenging ability.

scholarly journals Occurrence of Secondary Metabolites and Free Radical Scavenging Ability towards Better Adaptability of Some Mangrove Species in Elevated Salinity of Indian Sundarbans

2017 ◽  
pp. 13-38 ◽  
Author(s):  
Nirjhar Dasgupta ◽  
Paramita Nandy ◽  
Chandan Sengupta ◽  
Sauren Das
Keyword(s):  
Free Radical ◽  
Secondary Metabolites ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Scavenging Activity ◽  
Activity Assay ◽  
Ros Scavenging ◽  
Indian Sundarbans ◽  
Radical Scavenging Ability

Mangrove, a specialized group of plant communities, provide immense ecological and protective benefits to the coastal areas of the tropical and subtropical world where they thrive. Demographic obligation and climatic hostilities have massively altered their vegetation pattern and, even ruined some key species to large extent. The present study aims to consider Reactive Oxygen Species (ROS) scavenging skills in some degrading mangrove taxa of Indian Sundarbans (Xylocarpus granatum and Heritiera fomes) compared with some opulently growing ones (Excoecaria agallocha, Bruguiera gymnorrhiza and Phoenix paludosa) in increasing salinity gradient, in relation to their sustainability. Non-enzymatic antioxidants (secondary metabolites) Proanthocyanidin and Tannin were estimated and Free radical scavenging ability was evaluated by Singlet Oxygen Scavenging Activity Assay, Reducing power assay, effects on Peroxynitrite, Nitric Oxide Radical Scavenging, Hydrogen Peroxide Scavenging Activity Assay, Reaction with Hypochlorous Acid, Superoxide Radical Scavenging Activity Assay and Hydroxyl Radical Scavenging Activity. Relatively higher occurrence of secondary metabolites and improved antioxidant ability were recorded in E. agallocha, B. gymnorrhiza and P. paludosa; than the other two plants X. granatum and H. fomes; where the trend showed a decline in the ROS scavenging after a certain increase in salinity. Strong positive correlation of both secondary metabolites and radical scavenging ability with salinity pose the three stable taxa more viable in the higher salty environment of the Indian Sundarbans. But relatively less ROS scavenging ability in more saline zones, may be the potential reason for the unfavorable existence of the two red listed plants, which would ultimately lead to gradual natural extinction of them from the Indian Sundarbans.

scholarly journals Effects of enzymatic treatment on the chemical composition, antioxidant and rheological properties of cactus cladode juice

2021 ◽  
Vol 947 (1) ◽  
pp. 012043
Author(s):  
Anh L. Nguyen ◽  
Ngoc Lieu Le
Keyword(s):  
Free Radical ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Juice Yield

Abstract Cactus (Opuntia ficus-indica), commonly referred as prickly pear or nopal cactus, belongs to the family Cactaceae. It has attracted domestic and international industries’ attention owing to its nutritional and health benefit potentials. In this project, the quality of the cactus cladode juice after treated with the enzymes Pectinex Ultra SP-L and Viscozyme was investigated in terms of total phenolic content (TPC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity. There were significant increases in the effectiveness of these enzymes as the concentration increased from 0.05 to 0.15% w/w. Among different concentrations, 0.15% w/w produced a higher yield and high-quality juice. Furthermore, the result indicates that prolonging the incubation duration could improve juice yield but this occurred only within the first hour of reaction, which the highest yield was obtained at 0.75 h. At these conditions, the combination of Pectinex Ultra SP-L and Viscozyme at ratio 1:1 (w/w) showed the most effective on juice yield improvement and 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity, while the highest total phenolic content was obtained when treating with Pectinex Ultra SP-L. Particularly as compared to the control sample, the juice yield increased from 53% to 76%, the TPC enhanced from 47 μg gallic acid equivalent (GAE)/mL to 70 μg GAE/mL, and the DPPH free radical scavenging activity improved from 277 μg ascorbic acid equivalent (AAE)/mL to 470 μg AAE/mL. Overall, the quality of cactus juice was better with enzymatic treatment than that of the untreated juice. The data also showed that the cactus juice behaved as shear – thickening fluids at room temperature.

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