The present invention is directed towards the use of substituted chroman-6-ols of formula (I) wherein R.sup.1 and R.sup.2 are independently from each other H or C.sub.1-11-alkyl or (CH.sub.2).sub.nOH with n being an integer from 1 to 4, or R.sup.1 and R.sup.2 represent together a keto group, 10 A is CHR.sup.3 or C(O), and wherein R.sup.3, R.sup.4 and R.sup.6 are independently from each other H or C.sub.1-4-alkyl, and wherein R.sup.5 is H or OH or C.sub.1-4-alkyl or C.sub.1-4-alkoxy, as antioxidants, especially in feed such as pet food and feed ingredients such as fish meal, insect meal and poultry meal, as well as PUFA-containing oil such as marine oil, microbial oil, fungal oil, algal oil and PUFA-containing plant oil. The present invention is further directed towards feed ingredients and feed for insects, aquatic and terrestrial animals comprising such substituted chroman-6-ols of formula (I).

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A nutritious rice is produced using rice, rice bran oil and a natural antioxidant as raw materials, wherein the weight ratio of the rice and rice bran oil is 1000:0.5-1000:3, and the natural antioxidant accounts for 1-15% of the weight of the rice bran oil. Such functional nutritious rice is provided with improved oxidation resistance and prolonged shelf life through the use of natural antioxidant. Also, the method of the present invention is simple, economical and effective.

A nutritious rice is produced using rice, rice bran oil and a natural antioxidant as raw materials, wherein the weight ratio of the rice and rice bran oil is 1000:0.5-1000:3, and the natural antioxidant accounts for 1-15% of the weight of the rice bran oil. Such functional nutritious rice is provided with improved oxidation resistance and prolonged shelf life through the use of natural antioxidant. Also, the method of the present invention is simple, economical and effective.

Antibrowning compositions for food products, for example fresh produce, are disclosed herein. These antibrowning compositions can also, for example, be used to prevent growth of bacteria, yeasts and molds in the food products. Methods for using the antibrowning compositions are also disclosed herein.

An oxidatively stable comestible that includes a comestible base containing an oil, an acidulant, and optionally an egg yolk or an egg yolk substitute, and up to 750 ppm of tannic acid blended into the comestible base, based on a total weight of the oxidatively stable comestible. A method of preparing the oxidatively stable comestible involving blending the tannic acid into an aqueous phase comprising the egg yolk or the egg yolk substitute to form a treated aqueous phase, adding the acidulant to the treated aqueous phase to form an acidified aqueous phase, and adding an oil phase comprising the oil into the acidified aqueous phase and blending.

An oxidatively stable comestible that includes a comestible base containing an oil, an acidulant, and optionally an egg yolk or an egg yolk substitute, and up to 750 ppm of tannic acid blended into the comestible base, based on a total weight of the oxidatively stable comestible. A method of preparing the oxidatively stable comestible involving blending the tannic acid into an aqueous phase comprising the egg yolk or the egg yolk substitute to form a treated aqueous phase, adding the acidulant to the treated aqueous phase to form an acidified aqueous phase, and adding an oil phase comprising the oil into the acidified aqueous phase and blending.

Embodiments of the invention relates to an antimicrobial composition comprising an alkyl pyrazine compound or mixture of compounds selected from the group consisting of 2-isobutyl-3-methylpyrazine, 2-isobutyl-3-methoxypyrazine, 2-isopropylpyrazine, 2-isobutylpyrazine and mixtures of methylpyrazines having one, two and three isopropyl or isobutyl substituents. Further embodiments of the invention relate to uses of alkyl pyrazine compounds, in particular for controlling microbial growth.

Embodiments of the invention relates to an antimicrobial composition comprising an alkyl pyrazine compound or mixture of compounds selected from the group consisting of 2-isobutyl-3-methylpyrazine, 2-isobutyl-3-methoxypyrazine, 2-isopropylpyrazine, 2-isobutylpyrazine and mixtures of methylpyrazines having one, two and three isopropyl or isobutyl substituents. Further embodiments of the invention relate to uses of alkyl pyrazine compounds, in particular for controlling microbial growth.

A bactericidal or bacteriostatic composition comprising an acetal or a hexitan ether preferentially of a long-chain alkyl sorbitan, arlitan or mannitan, its use in the treatment or prevention of Gram-positive bacterial infections, its use as a hygiene or dermatological product for external use and a method for disinfecting surfaces.

A bactericidal or bacteriostatic composition comprising an acetal or a hexitan ether preferentially of a long-chain alkyl sorbitan, arlitan or mannitan, its use in the treatment or prevention of Gram-positive bacterial infections, its use as a hygiene or dermatological product for external use and a method for disinfecting surfaces.