DEVICE OF MEASURING AMOUNT OF LIPID ACCUMULATION IN MICROALGAE AND METHOD OF MEASURING AMOUNT OF LIPID ACCUMULATION IN MICROALGAE

A device of measuring an amount of lipid accumulation in microalgae includes a flow cell through which a fluid containing the microalgae is supplied to flow, an excitation light source irradiating the flow cell with excitation light, a fluorescence detector detecting autofluorescence generated from a chloroplast of each of the microalgae that have been irradiated with the excitation light, a scattered light detector detecting scattered light caused by each of the microalgae that have been irradiated with the excitation light, and an arithmetic unit calculating a size of the microalga from intensity of the scattered light, calculating a fluorescence density corresponding to intensity of the autofluorescence generated from the chloroplast per unit size of the microalga based on both the intensity of the autofluorescence generated from the chloroplast and the size of the microalga, and calculating an amount of lipid accumulation per microalga from the fluorescence density.