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Evolutionary properties of infrared (IR) luminous galaxies are important keysto understand dust-obscured star formation history and galaxy evolution. Basedon the near- to mid-IR imaging with 9 continuous filters of AKARI spacetelescope, we present the characteristics of dusty star-forming (SF) galalxiesshowing polycyclic aromatic hydrocarbon (PAH) features observed by the NorthEcliptic Pole (NEP) wide field survey of AKARI and Herschel. All the samplegalaxies from the AKARI/NEP-Wide data are selected based both on theHerschel/SPIRE 250 {\mu}m detection and optical spectroscopic redshift data.The physical modelling of spectral energy distribution (SED) using allavailable data points from u to sub-mm 500 {\mu}m band, including WISE and PACSdata where available, takes unique advantages of the continuous near to mid-IRcoverage, reliable constraint on far-IR peak, spectroscopically determinedaccurate redshifts, as well as energy balance principle by MAGPHYS. Thisenables us to derive physically meaningful and accurate total infraredluminosity and 8 {\mu}m (or PAH) luminosity consistently. Our sample galaxiesare in the redshift range z <1, and majority of them appear to be normalSF/spiral populations showing PAH features near the 8 {\mu}m. These SF galaxiesshowing PAHs in the mid-IR include various types from quiescent to starbursts.Some of our sample show shortage of 8 {\mu}m luminosity compared to the totalIR luminosity and this PAH deficit gets severe in more luminous IR galaxies,suggesting PAH molecules in these galaxies destroyed by strong radiation fieldfrom SF region or a large amount of cold dust in ISM. The specific SFR of oursample shows mass dependent time evolution which is consistent with downsizingevolutionary pattern.

Characteristics of mid-infrared PAH emission from star-forming galaxies selected at 250 {\mu}m in the North Ecliptic Pole (NEP) field