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Samples of a commercial fish oil were separately treated with various chemical compounds and then studied for their susceptibility to rancidity by means of an accelerated oxidation test at 60°C.α‐Tocopherol acetate and ascorbyl palmitate showed the lowest antioxidative effects among the group of seven chemicals. Anoxomer, a synthetic phenolic polymer, had an antioxidative power comparable to that of ethoxyquin, butylated hydroxytoluene or butylated hydroxyanisole when all were applied to the oil in the concentration of 0.02%. However, the most powerful antioxidant was tertiary‐butylhydroquinone (TBHQ), with an antioxidant efficiency twice that of the above‐mentioned phenolic compounds when used at only 0.01% concentration in the oil. Although TBHQ and Anoxomer proved to be potential compounds for preventing rancidity in fish oils, their use is still hindered by the limited acceptance from the appropriate authorities.

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Cereal Chem. 78(3):322-329Eight Scandinavian oat cultivars were studied as grains, groats before and after kiln drying, rolled oats, and oatmeal for 62 physical, chemical, and sensory parameters over three consecutive crop years. The objectives were to study cultivar and year differences, and the relationships between parameters to find out the cultivars most suitable for rolled oats production and to understand how grain parameters are reflected on groat, rolled oat, and oatmeal characteristics. The cultivars and crop years differed (P < 0.05) in most of the parameters. In addition, many groat, rolled oats, and oatmeal variables showed a significant year by crop interaction. Several grain variables were significantly interrelated but only two, moisture and amount of dark and damaged grains, had a strong correlation (r > 0.70) to rolled oat parameters, the former correlating negatively to crude fat and the latter positively with maximum viscosity value. However, some weaker (r < 0.70) negative associations were found