The Impact of Retail Light Source on Greening of Russet Burbank Potato Tubers

A Review on Greening and Glycoalkaloids in Potato Tubers: Potential Solutions

“…The increase in the content of TGA is associated with the wavelength, duration of exposure, and the intensity of light. , The quality and quantity of light play essential roles in developing TGA in stored potatoes , and are greatly influenced by the spectral composition of the light source. Some studies showed that different light sources and wavelengths of light resulted in a reduced risk of TGA production. Mekapogu et al have studied the effect of light qualities (yellow, green, blue, red, purple, fluorescent, and UV lights) on Haryoung and Atlantic cultivars of potato.…”

“…2,13,38 As a summary, the level of TGA (α-solanine + α-chaconine) in different potato cultivars studied by researchers, having TGA content lower than the acceptable limit of 200 mg kg −1 fresh weight, are listed as follows. The potato variety Russet Burbank from United States under fluorescent light (1300 lx), for 22 h, at 22 °C showed TGA value of 10.3 mg per 100 g −1 fresh weight; 39 Danshaku and May Queen variety from Japan treated under daylight intensity for 11 h at 7−29 °C showed TGA values of 21.9 and 31.2 mg per 100 g −1 fresh weight, respectively; 40 Dark Red Norland, Ranger Russet, Red Lasoda, Russet Burbank, Russet Norkota, Shepody, Snowden, and Atlantic varieties from United States treated at 4 °C in the dark showed TGA values of 2.45, 5.15, 2.72, 6.31, 0.73, 3.83, 18.7, and 0.8 mg per 100 g −1 fresh weight, respectively; 41 Aster, Mila, and Bryza varieties from Poland showed TGA values of 13.7, 9.33, and 6.34 mg per 100 g −1 fresh weight, respectively; 42 and Malcacho, Chapaquita, Pampena, Potosina, Sani-Imilla, and Desiree varieties from Peru showed TGA values of 3.41, 6.80, 2.90, 9.37, 8.84, and 7.00 mg per 100 g −1 fresh weight, respectively. 43 ■ OVERALL EFFECTS OF GREENING AND TGA Overall, the greening and TGA development in potatoes cause wastage in terms of (i) weight loss, 44 (ii) marketing loss, 5 and (iii) quality loss.…”

Quantifying risk factors associated with light-induced potato tuber greening in retail stores

“…For example, the rate of chlorophyll accumulation was higher under sodium and fluorescent lighting compared to low- and high-pressure mercury lighting [ 9 ]. Recently, it was shown that the use of fiber optic lighting or a combination of fiber optic with standard fluorescent lighting significantly reduced greening progression more than either ceramic metal halide or halogen light sources [ 10 ]. Previous studies of light spectral quality have identified blue wavelengths to elicit a faster progression of greening compared to other wavelengths [ 4 , 11 , 12 ].…”

Quantifying risk factors associated with light-induced potato tuber greening in retail stores

“…For example, the rate of chlorophyll accumulation was higher under sodium and fluorescent lighting compared to low-and high-pressure mercury lighting [9]. Recently, it was showed that the use of fiber optic lighting or a combination of fiber optic with standard fluorescent lighting significantly reduced greening progression more than either ceramic metal halide or halogen light sources [10]. Previous studies of light spectral quality have identified blue wavelengths to elicit a faster progression of greening compared to other wavelengths [4,11,12].…”