Abstract: A packaged article includes a packing bag which includes a welded portion that hermetically seals a container compartment in which a fluid content is contained. The welded portion includes a weak sealant section configured to be parted when the container compartment is pressed to communicate the container compartment and the exterior of the packing bag. A strong sealant section is configured to maintain a welded state at the time when the weak sealant section is parted. The container compartment includes a primary container section and a secondary container section. The secondary container section includes a narrow neck that is narrower than the primary container section in a width-wise direction, which corresponds to a direction in which the weak sealant section extends. The secondary container section is in communication with the primary container section at the narrow neck. The secondary container section is located adjacent to the weak sealant section.

Abstract: The present invention relates to a method for producing a high-acidity vinegar with improved efficiency compared with conventional methods and a high-acidity vinegar obtained by such method. The method of the present invention is characterized in that acetic acid fermentation is conducted with a culture solution which contains a compound having a thiol group or an S-substituted derivative thereof or a compound having a disulfide bond as an additive wherein a total nitrogen content of the culture solution is 0.023 w/v % or less. According to the method of the present invention, a high-acidity vinegar, which has a total nitrogen content of 0.015 w/v % or less and an acidity of 10 to 25 w/v % and contains a compound having a thiol group or an S-substituted derivative thereof or a compound having a disulfide bond at a concentration of 17 ?M or more in terms of sulfur atoms contained in the thiol group or disulfide bond can be obtained.

Abstract: The present invention relates to a method for producing a high-acidity vinegar with improved efficiency compared with conventional methods and a high-acidity vinegar obtained by such method. The method of the present invention is characterized in that acetic acid fermentation is conducted with a culture solution which contains a compound having a thiol group or an S-substituted derivative thereof or a compound having a disulfide bond as an additive wherein a total nitrogen content of the culture solution is 0.023 w/v % or less. According to the method of the present invention, a high-acidity vinegar, which has a total nitrogen content of 0.015 w/v % or less and an acidity of 10 to 25 w/v % and contains a compound having a thiol group or an S-substituted derivative thereof or a compound having a disulfide bond at a concentration of 17 ?M or more in terms of sulfur atoms contained in the thiol group or disulfide bond can be obtained.