Concentration([micro]gm) Absorbance %Inhibition 0.250 1.623 10.97 0.500 1.425 21.83 0.750 1.377 24.46 1.000 1.264 30.66 1.250 1.062 41.74 1.500 0.922 49.42 1.750 0.816 55.24 2.00 0.806 55.78 2.250 0.699 61.65 2.500 0.547 69.99 Table 2: Values of absorbance and percentage inhibition with increase in concentration of methanolic solution of butylated hydroxytoluene
Butylated hydroxyanisole (BHA), butylated hydroxytoluene
(BHT) and Ascorbic acid were used as reference materials.
Survival and fertility of boar spermatozoa after freeze thawing in extender supplemented with butylated hydroxytoluene
-, not analyzed; BHT, butylated hydroxytoluene
; TOC, [alpha]-tocopherol.
Anticarcinogenic and hepatotoxic interactions between retinyl acetate and butylated hydroxytoluene
Aliquots (1 mL) of plasma were transferred to Eppendorf tubes containing 20 [micro]mol/L butylated hydroxytoluene
as a free-radical scavenger.
Artificial Colorings (Citrus Red 2, Red 40) Aspartame (NutraSweet) Brominated Vegetable Oil (BVO) Butylated Hydroxyanisole (BHA) Butylated Hydroxytoluene
(BHT) Heptyl Paraben Propyl Gallate Quinine [D] A Certain People Should Avoid These cause allergic or other reactions in some people.
Two of the impurities gave FT-IR and mass spectra consistent with butylated hydroxytoluene
, a common anti-oxidant, and 2,2'-methylene bis(4-ethyl-6-t-butylphenol), a compound similar to known rubber additives.
(BHT) following the method of Lee et al.
(BHT), a phenolic organic antioxidant that is a synthetic analogue of vitamin E, significantly decreases the membrane permeability changes during cryopreservation by acting as membrane protectant (Khalifaet al., 2008).
2,2-Diphenyl-2-picrylhydrazyl (DPPH; Aldrich), Fe[Cl.sub.2] x 4[H.sub.2]O (Fluka), trichloroacetic acid (Sigma), phenazine methosulfate (PMS; Sigma), nicotinamide adenine dinucleotide (NADH; Sigma), nitro blue tetrazolium (NBT; Sigma Aldrich), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT; Sigma), butylated hydroxytoluene
(BHT; Aldrich), stigmasterol (Sigma), caffeic acid (Sigma), wedelolactone (Sigma), and ethylenediaminetetraacetate (EDTA; Sigma) were purchased from Sigma Chemical Co.