Green light enhances the phytochemical preservation of lettuce during postharvest cold storage.

The postharvest lighting environment is a main factor that influences quality preservation for harvested biomass. The objective of this study was to evaluate postharvest changes in bioactive compounds of lettuce with different storage light spectra. The effects of green LEDs with peaks at 500 nm and 530 nm, white LEDs (400-700 nm), and dark storage were evaluated, where light intensity (10 μmol m-2 s-1) and photoperiod (12 h per day) were constant with air temperature at 5°C over the 14 d treatment period.

The effect of laser on the efficiency of membrane clarification of pomegranate juice.

In this study, a laser node with power 1 W and wavelength 532 nm was used to reduce the membrane fouling and evaluate its effect on the efficiency of membrane clarification of pomegranate juice. The results showed that the permeate flux increased in the presence of the laser due to the decrease in total resistance. Also, application of the laser in the pressurized process of 0.