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Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Haque, Zahur Z.
Committee Member
Nannapaneni, Ramakrishna
Committee Member
Cheng, Wen-Hsing
Date of Degree
5-7-2016
Document Type
Graduate Thesis - Open Access
Major
Wildlife, Fisheries and Aquaculture
Degree Name
Master of Science
College
College of Forest Resources
Department
Department of Wildlife, Fisheries and Aquaculture
Abstract
Turmeric polar extract (TPE) was obtained by dielectric-precipitation of turmeric slurry and found to contain three proteins with two in the 10-11 KDa range being dominant. Antioxidative activity and persistence (AP) of TPE (5%, w/v) respectively showed 87% and 85% greater generation of alkoxy- and peroxyl radicals compared the non-redox-active buffer alone showing significant (p<0.05) pro-oxidative behavior. Conversely, purified curcumin (CU) (0.1% w/v) was dramatically antioxidative with AA and AP values of 2,828 and 1,129%, respectively, compared to the blank. However, a combination of the two at the same concentration dropped these values to 590 and 389%, respectively, reflecting dramatic dampening of the efficacy of CU. Ultraviolet radiation significantly modulated the efficacy of CU where UVB (300 nm) exposure gave the highest enhancement when limited to five min. Data showed that turmeric contains highly pro-oxidant polar proteins that significantly dramatically diminishes the beneficial antioxidative efficacy of its principal phytochemical, CU.
URI
https://hdl.handle.net/11668/20365
Recommended Citation
Alawadi, Nagham Salah, "An Automated Study of Antioxidant Potentials of Polar Extract of Turmeric as Influenced by Ultraviolet Radiation" (2016). Theses and Dissertations. 499.
https://scholarsjunction.msstate.edu/td/499