Abstract: A storage battery management device according to one embodiment includes a hardware processor functioning as an acquisition unit, a calculation unit, and a display control unit. The acquisition unit acquires, as current operation state data of a storage battery system including a plurality of storage batteries, charge/discharge power, a cell voltage, a charge/discharge current, and a temperature of a battery board of the storage battery system. The calculation unit calculates, by using a digital model for simulating operation of the storage battery system, a chargeable/dischargeable capacity, a State of Charge (SOC) level change amount, and an SOC maintainable charge/discharge amount being a charge/discharge amount maintaining an SOC level within a predetermined range. The display control unit causes a display unit to display the chargeable/dischargeable capacity, the SOC level change amount, and the SOC maintainable charge/discharge amount.

Abstract: A new strain Lactobacillus sp. KPB-176, which does not possess strict selectivity for specific media and which involves no reduction in the productivity of polysaccharides even during subculture, was isolated from kefir grains. When this new strain is cultured on a medium containing milk whey and casamino acid or when on a medium containing carbohydrate and yeast extract, capsular polysaccharides are produced in high yields.