Abstract: A cultivation greenhouse includes: an inner lining that forms a housing space for housing a plant to be a cultivation target, the inner lining tightly sealing the housing space; an outer lining that is disposed on an outer side of the inner lining to house the inner lining, the outer lining forming, with the inner lining, a circulation space for flowing outside air; and a circulation device that circulates air outside the outer lining into the circulation space and discharges the air to outside of the outer lining.

Abstract: An object of the present invention is to provide a particulate composition containing crystalline ?,?-trehalose dihydrate, having an advantageous emulsifying ability. The above object is solved by providing a particulate composition comprising crystalline ?,?-trehalose dihydrate, which consists of particles containing ?,?-trehalose and maltose and/or maltotriose, wherein said particulate composition contains ?,?-trehalose in an amount of 70% by weight or higher but 90% by weight or lower, on a dry solid basis; and maltose and/or maltotriose in a total amount of 3% by weight or higher, on a dry solid basis; and has a degree of crystallinity for crystalline ?,?-trehalose dihydrate of 25% or higher but less than 90%, when calculated based on its powder X-ray diffraction profile.

Abstract: An object of the present invention is to provide a particulate composition containing crystalline ?,?-trehalose dihydrate, having an advantageous emulsifying ability. The above object is solved by providing a particulate composition comprising crystalline ?,?-trehalose dihydrate, which consists of particles containing ?,?-trehalose and maltose and/or maltotriose, wherein said particulate composition contains ?,?-trehalose in an amount of 70% by weight or higher but 90% by weight or lower, on a dry solid basis; and maltose and/or maltotriose in a total amount of 3% by weight or higher, on a dry solid basis; and has a degree of crystallinity for crystalline ?,?-trehalose dihydrate of 25% or higher but less than 90%, when calculated based on its powder X-ray diffraction profile.