摘要:
The object of the present invention is to provide DNA and RNA designed on the basis of the sequence of an enzyme gene for repressing the expression of the enzyme gene generating a lachrymatory factor from a precursor of the lachrymatory factor, and also a vector required for introducing DNA for repressing the expression of the gene of the lachrymatory factor-producing enzyme into a vegetable. The present invention relates to DNA comprising at least one sequence selected from the following sequences and a regulatory sequence connected to said sequence so as to make the transcription possible: (a) a DNA sequence encoding a protein or a polypeptide of a lachrymatory factor-producing enzyme or a part of the DNA sequence in a sense orientation, an antisense orientation or both the orientations, wherein the protein or the polypeptide has an effect of converting 1-propenylsulfenic acid into the lachrymatory factor; (b) a regulatory sequence of a DNA in a vegetable genome determined on the basis of the DNA encoding the protein or the polypeptide of the lachrymatory factor-producing enzyme or a part of the regulatory sequence in a sense orientation, an antisense orientation or both the orientations; and (c) a DNA sequence located between the DNA encoding the protein or the polypeptide of the lachrymatory factor-producing enzyme and the regulatory sequence of the DNA in the vegetable genome DNA determined on the basis of the DNA encoding the protein or the polypeptide of the lachrymatory factor-producing enzyme or a part of the DNA sequence in a sense orientation, an antisense orientation or both the orientations.
摘要:
The present invention relates to protein or polypeptide capable of converting 1-propenylsulfenic acid concerning the formation of lachrymatory factors generated when plants such as onions are broken into pieces or cut into lachrymatory factors, and also to DNA (lachrymatory factor-producing enzyme genes) encoding the protein or polypeptide; a primer usable for isolating a gene of a lachrymatory factor-producing enzyme of the genus allium and a method for isolating the gene with the primer; a recombinant vector containing the DNA; a transformant containing the recombinant vector containing the DNA; a method for preparing protein or a polypeptide having lachrymatory factor-producing enzymatic activity by culturing host cells transformed with the recombinant vector containing the DNA; protein or a polypeptide having the lachrymatory factor-producing enzymatic activity; and a nucleic acid molecule having a function of repressing the translation of mRNA on protein or polypeptide having the lachrymatory factor-producing enzymatic activity.
摘要:
Green plant leaves (herbs) are blanched with an aqueous medium having a pH of 6.5 to 11 and heated at a temperature of 80.degree. to 102.degree. C. The reverse surfaces of the blanched herbs and/or the upper surfaces of dough sheet units are coated with an aqueous coating medium such as an aqueous solution of pullulan or gelatin, followed by attachment of the herbs to the dough sheet units. The dough sheet units-cum-herb(s) are baked to produce baked confectionery products with a bright green herb(s) free from the grassy smell and hardly liable to be discolored. The dough sheet units may be either of a single-layer structure or of a multi-layer structure including a vegetable-containing layer(s). According to the foregoing process, biscuits, pies, crackers, bread, etc. with a healthy touch can be produced.