The present invention relates to a feed composition using perilla meal, in which the ratio of omega-3 (omega-3) fatty acid and omega-6 (omega-6) fatty acid is adjusted to 1:4 or less to obtain livestock products, such as meat or milk, containing a large amount of unsaturated fatty acid. More specifically, the present invention related to a feed composition using perilla meal to produce livestock products with the ratio of omega-3 to omega-6 fatty acids being 1:4 or less which is a recommended ratio of the World Health Organization (WHO).

The present invention relates to a feed composition using perilla meal, in which the ratio of omega-3 (omega-3) fatty acid and omega-6 (omega-6) fatty acid is adjusted to 1:4 or less to obtain livestock products, such as meat or milk, containing a large amount of unsaturated fatty acid. More specifically, the present invention related to a feed composition using perilla meal to produce livestock products with the ratio of omega-3 to omega-6 fatty acids being 1:4 or less which is a recommended ratio of the World Health Organization (WHO).

The present invention relates to methods of synthesizing long-chain polyunsaturated fatty acids, especially eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid, in recombinant cells such as yeast or plant cells. Also provided are recombinant cells or plants which produce long-chain polyunsaturated fatty acids. Furthermore, the present invention relates to a group of new enzymes which possess desatorase or elongase activity that can be used in methods of synthesizing long-chain polyunsaturated fatty acids.

The present invention relates to methods of synthesizing long-chain polyunsaturated fatty acids, especially eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid, in recombinant cells such as yeast or plant cells. Also provided are recombinant cells or plants which produce long-chain polyunsaturated fatty acids. Furthermore, the present invention relates to a group of new enzymes which possess desatorase or elongase activity that can be used in methods of synthesizing long-chain polyunsaturated fatty acids.

The disclosure discloses a method for preparing feed by bacteria-enzyme synergistic fermentation, belonging to the technical field of fermentation engineering. According to the disclosure, Lactobacillus plantarum JUN-DY-6, protease and cellulase are used as a starter, and Camellia seed meal or rapeseed meal is used as a substrate. The bacteria-enzyme fermentation product has higher yield of organic acids and flavor substances and better palatability, and can be used for preparing feed additives. The L. plantarum of the disclosure can inhibit growth of harmful bacteria such as Escherichia coli, S. aureus and Salmonella in the intestinal tract of poultry and livestock, and is good for health of the intestinal tract. The method increases the added value of Camellia seed meal and rapeseed meal, and is conductive to reuse of waste.

The disclosure discloses a method for preparing feed by bacteria-enzyme synergistic fermentation, belonging to the technical field of fermentation engineering. According to the disclosure, Lactobacillus plantarum JUN-DY-6, protease and cellulase are used as a starter, and Camellia seed meal or rapeseed meal is used as a substrate. The bacteria-enzyme fermentation product has higher yield of organic acids and flavor substances and better palatability, and can be used for preparing feed additives. The L. plantarum of the disclosure can inhibit growth of harmful bacteria such as Escherichia coli, S. aureus and Salmonella in the intestinal tract of poultry and livestock, and is good for health of the intestinal tract. The method increases the added value of Camellia seed meal and rapeseed meal, and is conductive to reuse of waste.

The invention relates to a polynucleotide comprising a lacZ gene (lacZ.sup.FS) encoding a β-galactosidase characterized by a particular profile regarding its efficiency of hydrolysis of lactose. The invention is also directed to a Streptococcus thermophilus strain comprising a lacZ.sup.FS allele and bacterial composition thereof, and their use to obtain fermented milk not undergoing post-acidification.

The invention provides a peptide for complexing zinc ion, complex thereof and use therefor. The amino acid composition and sequence of the peptide for complexing zinc ion are Lys-Tyr-Lys-Arg-Gln-Arg-Trp (SEQ ID NO: 1). The peptide for complexing is derived from soybean or peanut, is an inherent component of foods, and has a super strong complexing effect with zinc ions.

The invention provides a peptide for complexing zinc ion, complex thereof and use therefor. The amino acid composition and sequence of the peptide for complexing zinc ion are Lys-Tyr-Lys-Arg-Gln-Arg-Trp (SEQ ID NO: 1). The peptide for complexing is derived from soybean or peanut, is an inherent component of foods, and has a super strong complexing effect with zinc ions.

The present disclosure relates to novel Lactobacillus sakei WIKIM0109 isolated from kimchi and a composition containing the same. The Lactobacillus sakei WIKIM0109 according to the present disclosure is a lactic acid bacterium having an activity of inhibiting IgG and IgG2a production in blood and an activity of inhibiting IFN-γ, IL-17 and TNF-α production, and can be used in various applications, such as for preventing and ameliorating arthritis or improving intestinal regulation in human or animals.